--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 New Dream Network
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+#include "include/int_types.h"
+
+#include <errno.h>
+
+#include "cls/rbd/cls_rbd_types.h"
+#include "common/dout.h"
+#include "common/errno.h"
+#include "common/TracepointProvider.h"
+#include "include/Context.h"
+
+#include "cls/rbd/cls_rbd_client.h"
+#include "cls/rbd/cls_rbd_types.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ImageState.h"
+#include "librbd/internal.h"
+#include "librbd/Operations.h"
+#include "librbd/api/DiffIterate.h"
+#include "librbd/api/Mirror.h"
+#include "librbd/io/AioCompletion.h"
+#include "librbd/io/ImageRequestWQ.h"
+#include "librbd/io/ReadResult.h"
+#include <algorithm>
+#include <string>
+#include <vector>
+
+#ifdef WITH_LTTNG
+#define TRACEPOINT_DEFINE
+#define TRACEPOINT_PROBE_DYNAMIC_LINKAGE
+#include "tracing/librbd.h"
+#undef TRACEPOINT_PROBE_DYNAMIC_LINKAGE
+#undef TRACEPOINT_DEFINE
+#else
+#define tracepoint(...)
+#endif
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd: "
+
+using std::string;
+using std::vector;
+
+using ceph::bufferlist;
+using librados::snap_t;
+using librados::IoCtx;
+
+namespace {
+
+TracepointProvider::Traits tracepoint_traits("librbd_tp.so", "rbd_tracing");
+
+buffer::raw* create_write_raw(librbd::ImageCtx *ictx, const char *buf,
+ size_t len) {
+ // TODO: until librados can guarantee memory won't be referenced after
+ // it ACKs a request, always make a copy of the user-provided memory
+ return buffer::copy(buf, len);
+}
+
+CephContext* get_cct(IoCtx &io_ctx) {
+ return reinterpret_cast<CephContext*>(io_ctx.cct());
+}
+
+librbd::io::AioCompletion* get_aio_completion(librbd::RBD::AioCompletion *comp) {
+ return reinterpret_cast<librbd::io::AioCompletion *>(comp->pc);
+}
+
+struct C_AioCompletion : public Context {
+ CephContext *cct;
+ librbd::io::aio_type_t aio_type;
+ librbd::io::AioCompletion* aio_comp;
+
+ C_AioCompletion(librbd::ImageCtx *ictx, librbd::io::aio_type_t aio_type,
+ librbd::io::AioCompletion* aio_comp)
+ : cct(ictx->cct), aio_type(aio_type), aio_comp(aio_comp) {
+ aio_comp->init_time(ictx, aio_type);
+ aio_comp->get();
+ }
+
+ void finish(int r) override {
+ ldout(cct, 20) << "C_AioComplete::finish: r=" << r << dendl;
+ if (r < 0) {
+ aio_comp->fail(r);
+ } else {
+ aio_comp->lock.Lock();
+ aio_comp->complete();
+ aio_comp->put_unlock();
+ }
+ }
+};
+
+struct C_OpenComplete : public C_AioCompletion {
+ librbd::ImageCtx *ictx;
+ void **ictxp;
+ C_OpenComplete(librbd::ImageCtx *ictx, librbd::io::AioCompletion* comp,
+ void **ictxp)
+ : C_AioCompletion(ictx, librbd::io::AIO_TYPE_OPEN, comp),
+ ictx(ictx), ictxp(ictxp) {
+ }
+ void finish(int r) override {
+ ldout(ictx->cct, 20) << "C_OpenComplete::finish: r=" << r << dendl;
+ if (r < 0) {
+ *ictxp = nullptr;
+ } else {
+ *ictxp = ictx;
+ }
+
+ C_AioCompletion::finish(r);
+ }
+};
+
+struct C_OpenAfterCloseComplete : public Context {
+ librbd::ImageCtx *ictx;
+ librbd::io::AioCompletion* comp;
+ void **ictxp;
+ C_OpenAfterCloseComplete(librbd::ImageCtx *ictx,
+ librbd::io::AioCompletion* comp,
+ void **ictxp)
+ : ictx(ictx), comp(comp), ictxp(ictxp) {
+ }
+ void finish(int r) override {
+ ldout(ictx->cct, 20) << "C_OpenAfterCloseComplete::finish: r=" << r
+ << dendl;
+ delete reinterpret_cast<librbd::ImageCtx*>(*ictxp);
+ *ictxp = nullptr;
+
+ ictx->state->open(false, new C_OpenComplete(ictx, comp, ictxp));
+ }
+};
+
+struct C_UpdateWatchCB : public librbd::UpdateWatchCtx {
+ rbd_update_callback_t watch_cb;
+ void *arg;
+ uint64_t handle = 0;
+
+ C_UpdateWatchCB(rbd_update_callback_t watch_cb, void *arg) :
+ watch_cb(watch_cb), arg(arg) {
+ }
+ void handle_notify() override {
+ watch_cb(arg);
+ }
+};
+
+void mirror_image_info_cpp_to_c(const librbd::mirror_image_info_t &cpp_info,
+ rbd_mirror_image_info_t *c_info) {
+ c_info->global_id = strdup(cpp_info.global_id.c_str());
+ c_info->state = cpp_info.state;
+ c_info->primary = cpp_info.primary;
+}
+
+void mirror_image_status_cpp_to_c(const librbd::mirror_image_status_t &cpp_status,
+ rbd_mirror_image_status_t *c_status) {
+ c_status->name = strdup(cpp_status.name.c_str());
+ mirror_image_info_cpp_to_c(cpp_status.info, &c_status->info);
+ c_status->state = cpp_status.state;
+ c_status->description = strdup(cpp_status.description.c_str());
+ c_status->last_update = cpp_status.last_update;
+ c_status->up = cpp_status.up;
+}
+
+void trash_image_info_cpp_to_c(const librbd::trash_image_info_t &cpp_info,
+ rbd_trash_image_info_t *c_info) {
+ c_info->id = strdup(cpp_info.id.c_str());
+ c_info->name = strdup(cpp_info.name.c_str());
+ c_info->source = cpp_info.source;
+ c_info->deletion_time = cpp_info.deletion_time;
+ c_info->deferment_end_time = cpp_info.deferment_end_time;
+}
+
+struct C_MirrorImageGetInfo : public Context {
+ rbd_mirror_image_info_t *mirror_image_info;
+ Context *on_finish;
+
+ librbd::mirror_image_info_t cpp_mirror_image_info;
+
+ C_MirrorImageGetInfo(rbd_mirror_image_info_t *mirror_image_info,
+ Context *on_finish)
+ : mirror_image_info(mirror_image_info), on_finish(on_finish) {
+ }
+
+ void finish(int r) override {
+ if (r < 0) {
+ on_finish->complete(r);
+ return;
+ }
+
+ mirror_image_info_cpp_to_c(cpp_mirror_image_info, mirror_image_info);
+ on_finish->complete(0);
+ }
+};
+
+struct C_MirrorImageGetStatus : public Context {
+ rbd_mirror_image_status_t *mirror_image_status;
+ Context *on_finish;
+
+ librbd::mirror_image_status_t cpp_mirror_image_status;
+
+ C_MirrorImageGetStatus(rbd_mirror_image_status_t *mirror_image_status,
+ Context *on_finish)
+ : mirror_image_status(mirror_image_status), on_finish(on_finish) {
+ }
+
+ void finish(int r) override {
+ if (r < 0) {
+ on_finish->complete(r);
+ return;
+ }
+
+ mirror_image_status_cpp_to_c(cpp_mirror_image_status, mirror_image_status);
+ on_finish->complete(0);
+ }
+};
+
+} // anonymous namespace
+
+namespace librbd {
+ ProgressContext::~ProgressContext()
+ {
+ }
+
+ class CProgressContext : public ProgressContext
+ {
+ public:
+ CProgressContext(librbd_progress_fn_t fn, void *data)
+ : m_fn(fn), m_data(data)
+ {
+ }
+ int update_progress(uint64_t offset, uint64_t src_size) override
+ {
+ return m_fn(offset, src_size, m_data);
+ }
+ private:
+ librbd_progress_fn_t m_fn;
+ void *m_data;
+ };
+
+ /*
+ RBD
+ */
+ RBD::RBD()
+ {
+ }
+
+ RBD::~RBD()
+ {
+ }
+
+ void RBD::version(int *major, int *minor, int *extra)
+ {
+ rbd_version(major, minor, extra);
+ }
+
+ int RBD::open(IoCtx& io_ctx, Image& image, const char *name)
+ {
+ return open(io_ctx, image, name, NULL);
+ }
+
+ int RBD::open_by_id(IoCtx& io_ctx, Image& image, const char *id)
+ {
+ return open_by_id(io_ctx, image, id, nullptr);
+ }
+
+ int RBD::open(IoCtx& io_ctx, Image& image, const char *name,
+ const char *snap_name)
+ {
+ ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, false);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+
+ if (image.ctx != NULL) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close();
+ image.ctx = NULL;
+ }
+
+ int r = ictx->state->open(false);
+ if (r < 0) {
+ tracepoint(librbd, open_image_exit, r);
+ return r;
+ }
+
+ image.ctx = (image_ctx_t) ictx;
+ tracepoint(librbd, open_image_exit, 0);
+ return 0;
+ }
+
+ int RBD::open_by_id(IoCtx& io_ctx, Image& image, const char *id,
+ const char *snap_name)
+ {
+ ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, false);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, open_image_by_id_enter, ictx, ictx->id.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only);
+
+ if (image.ctx != nullptr) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close();
+ image.ctx = nullptr;
+ }
+
+ int r = ictx->state->open(false);
+ if (r < 0) {
+ tracepoint(librbd, open_image_by_id_exit, r);
+ return r;
+ }
+
+ image.ctx = (image_ctx_t) ictx;
+ tracepoint(librbd, open_image_by_id_exit, 0);
+ return 0;
+ }
+
+ int RBD::aio_open(IoCtx& io_ctx, Image& image, const char *name,
+ const char *snap_name, RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, false);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc);
+
+ if (image.ctx != NULL) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close(
+ new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx));
+ } else {
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c),
+ &image.ctx));
+ }
+ tracepoint(librbd, aio_open_image_exit, 0);
+ return 0;
+ }
+
+ int RBD::aio_open_by_id(IoCtx& io_ctx, Image& image, const char *id,
+ const char *snap_name, RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, false);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, aio_open_image_by_id_enter, ictx, ictx->id.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, c->pc);
+
+ if (image.ctx != nullptr) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close(
+ new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx));
+ } else {
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c),
+ &image.ctx));
+ }
+ tracepoint(librbd, aio_open_image_by_id_exit, 0);
+ return 0;
+ }
+
+ int RBD::open_read_only(IoCtx& io_ctx, Image& image, const char *name,
+ const char *snap_name)
+ {
+ ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, true);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+
+ if (image.ctx != NULL) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close();
+ image.ctx = NULL;
+ }
+
+ int r = ictx->state->open(false);
+ if (r < 0) {
+ tracepoint(librbd, open_image_exit, r);
+ return r;
+ }
+
+ image.ctx = (image_ctx_t) ictx;
+ tracepoint(librbd, open_image_exit, 0);
+ return 0;
+ }
+
+ int RBD::open_by_id_read_only(IoCtx& io_ctx, Image& image, const char *id,
+ const char *snap_name)
+ {
+ ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, true);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, open_image_by_id_enter, ictx, ictx->id.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only);
+
+ if (image.ctx != nullptr) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close();
+ image.ctx = nullptr;
+ }
+
+ int r = ictx->state->open(false);
+ if (r < 0) {
+ tracepoint(librbd, open_image_by_id_exit, r);
+ return r;
+ }
+
+ image.ctx = (image_ctx_t) ictx;
+ tracepoint(librbd, open_image_by_id_exit, 0);
+ return 0;
+ }
+
+ int RBD::aio_open_read_only(IoCtx& io_ctx, Image& image, const char *name,
+ const char *snap_name, RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, true);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc);
+
+ if (image.ctx != NULL) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close(
+ new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx));
+ } else {
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c),
+ &image.ctx));
+ }
+ tracepoint(librbd, aio_open_image_exit, 0);
+ return 0;
+ }
+
+ int RBD::aio_open_by_id_read_only(IoCtx& io_ctx, Image& image, const char *id,
+ const char *snap_name, RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, true);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, aio_open_image_by_id_enter, ictx, ictx->id.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, c->pc);
+
+ if (image.ctx != nullptr) {
+ reinterpret_cast<ImageCtx*>(image.ctx)->state->close(
+ new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx));
+ } else {
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(c),
+ &image.ctx));
+ }
+ tracepoint(librbd, aio_open_image_by_id_exit, 0);
+ return 0;
+ }
+
+ int RBD::create(IoCtx& io_ctx, const char *name, uint64_t size, int *order)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, *order);
+ int r = librbd::create(io_ctx, name, size, order);
+ tracepoint(librbd, create_exit, r, *order);
+ return r;
+ }
+
+ int RBD::create2(IoCtx& io_ctx, const char *name, uint64_t size,
+ uint64_t features, int *order)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create2_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order);
+ int r = librbd::create(io_ctx, name, size, false, features, order, 0, 0);
+ tracepoint(librbd, create2_exit, r, *order);
+ return r;
+ }
+
+ int RBD::create3(IoCtx& io_ctx, const char *name, uint64_t size,
+ uint64_t features, int *order, uint64_t stripe_unit,
+ uint64_t stripe_count)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create3_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order, stripe_unit, stripe_count);
+ int r = librbd::create(io_ctx, name, size, false, features, order,
+ stripe_unit, stripe_count);
+ tracepoint(librbd, create3_exit, r, *order);
+ return r;
+ }
+
+ int RBD::create4(IoCtx& io_ctx, const char *name, uint64_t size,
+ ImageOptions& opts)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create4_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, opts.opts);
+ int r = librbd::create(io_ctx, name, "", size, opts, "", "", false);
+ tracepoint(librbd, create4_exit, r);
+ return r;
+ }
+
+ int RBD::clone(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name,
+ IoCtx& c_ioctx, const char *c_name, uint64_t features,
+ int *c_order)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx));
+ tracepoint(librbd, clone_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, features);
+ int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name,
+ features, c_order, 0, 0);
+ tracepoint(librbd, clone_exit, r, *c_order);
+ return r;
+ }
+
+ int RBD::clone2(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name,
+ IoCtx& c_ioctx, const char *c_name, uint64_t features,
+ int *c_order, uint64_t stripe_unit, int stripe_count)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx));
+ tracepoint(librbd, clone2_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, features, stripe_unit, stripe_count);
+ int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name,
+ features, c_order, stripe_unit, stripe_count);
+ tracepoint(librbd, clone2_exit, r, *c_order);
+ return r;
+ }
+
+ int RBD::clone3(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name,
+ IoCtx& c_ioctx, const char *c_name, ImageOptions& c_opts)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx));
+ tracepoint(librbd, clone3_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, c_opts.opts);
+ int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name,
+ c_opts);
+ tracepoint(librbd, clone3_exit, r);
+ return r;
+ }
+
+ int RBD::remove(IoCtx& io_ctx, const char *name)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::remove(io_ctx, name, "", prog_ctx);
+ tracepoint(librbd, remove_exit, r);
+ return r;
+ }
+
+ int RBD::remove_with_progress(IoCtx& io_ctx, const char *name,
+ ProgressContext& pctx)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name);
+ int r = librbd::remove(io_ctx, name, "", pctx);
+ tracepoint(librbd, remove_exit, r);
+ return r;
+ }
+
+ int RBD::trash_move(IoCtx &io_ctx, const char *name, uint64_t delay) {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_move_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), name);
+ int r = librbd::trash_move(io_ctx, RBD_TRASH_IMAGE_SOURCE_USER, name,
+ delay);
+ tracepoint(librbd, trash_move_exit, r);
+ return r;
+ }
+
+ int RBD::trash_get(IoCtx &io_ctx, const char *id, trash_image_info_t *info) {
+ return librbd::trash_get(io_ctx, id, info);
+ }
+
+ int RBD::trash_list(IoCtx &io_ctx, vector<trash_image_info_t> &entries) {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_list_enter,
+ io_ctx.get_pool_name().c_str(), io_ctx.get_id());
+ int r = librbd::trash_list(io_ctx, entries);
+#ifdef WITH_LTTNG
+ if (r >= 0) {
+ for (const auto& entry : entries) {
+ tracepoint(librbd, trash_list_entry, entry.id.c_str());
+ }
+ }
+#endif
+ tracepoint(librbd, trash_list_exit, r, r);
+ return r;
+ }
+
+ int RBD::trash_remove(IoCtx &io_ctx, const char *image_id, bool force) {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), image_id, force);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::trash_remove(io_ctx, image_id, force, prog_ctx);
+ tracepoint(librbd, trash_remove_exit, r);
+ return r;
+ }
+
+ int RBD::trash_remove_with_progress(IoCtx &io_ctx, const char *image_id,
+ bool force, ProgressContext &pctx) {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), image_id, force);
+ int r = librbd::trash_remove(io_ctx, image_id, force, pctx);
+ tracepoint(librbd, trash_remove_exit, r);
+ return r;
+ }
+
+ int RBD::trash_restore(IoCtx &io_ctx, const char *id, const char *name) {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_undelete_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), id, name);
+ int r = librbd::trash_restore(io_ctx, id, name);
+ tracepoint(librbd, trash_undelete_exit, r);
+ return r;
+ }
+
+ int RBD::list(IoCtx& io_ctx, vector<string>& names)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id());
+ int r = librbd::list(io_ctx, names);
+ if (r >= 0) {
+ for (vector<string>::iterator itr = names.begin(), end = names.end(); itr != end; ++itr) {
+ tracepoint(librbd, list_entry, itr->c_str());
+ }
+ }
+ tracepoint(librbd, list_exit, r, r);
+ return r;
+ }
+
+ int RBD::rename(IoCtx& src_io_ctx, const char *srcname, const char *destname)
+ {
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(src_io_ctx));
+ tracepoint(librbd, rename_enter, src_io_ctx.get_pool_name().c_str(), src_io_ctx.get_id(), srcname, destname);
+ int r = librbd::rename(src_io_ctx, srcname, destname);
+ tracepoint(librbd, rename_exit, r);
+ return r;
+ }
+
+ int RBD::mirror_mode_get(IoCtx& io_ctx, rbd_mirror_mode_t *mirror_mode) {
+ return librbd::api::Mirror<>::mode_get(io_ctx, mirror_mode);
+ }
+
+ int RBD::mirror_mode_set(IoCtx& io_ctx, rbd_mirror_mode_t mirror_mode) {
+ return librbd::api::Mirror<>::mode_set(io_ctx, mirror_mode);
+ }
+
+ int RBD::mirror_peer_add(IoCtx& io_ctx, std::string *uuid,
+ const std::string &cluster_name,
+ const std::string &client_name) {
+ return librbd::api::Mirror<>::peer_add(io_ctx, uuid, cluster_name,
+ client_name);
+ }
+
+ int RBD::mirror_peer_remove(IoCtx& io_ctx, const std::string &uuid) {
+ return librbd::api::Mirror<>::peer_remove(io_ctx, uuid);
+ }
+
+ int RBD::mirror_peer_list(IoCtx& io_ctx, std::vector<mirror_peer_t> *peers) {
+ return librbd::api::Mirror<>::peer_list(io_ctx, peers);
+ }
+
+ int RBD::mirror_peer_set_client(IoCtx& io_ctx, const std::string &uuid,
+ const std::string &client_name) {
+ return librbd::api::Mirror<>::peer_set_client(io_ctx, uuid, client_name);
+ }
+
+ int RBD::mirror_peer_set_cluster(IoCtx& io_ctx, const std::string &uuid,
+ const std::string &cluster_name) {
+ return librbd::api::Mirror<>::peer_set_cluster(io_ctx, uuid, cluster_name);
+ }
+
+ int RBD::mirror_image_status_list(IoCtx& io_ctx, const std::string &start_id,
+ size_t max, std::map<std::string, mirror_image_status_t> *images) {
+ return librbd::api::Mirror<>::image_status_list(io_ctx, start_id, max,
+ images);
+ }
+
+ int RBD::mirror_image_status_summary(IoCtx& io_ctx,
+ std::map<mirror_image_status_state_t, int> *states) {
+ return librbd::api::Mirror<>::image_status_summary(io_ctx, states);
+ }
+
+ RBD::AioCompletion::AioCompletion(void *cb_arg, callback_t complete_cb)
+ {
+ pc = reinterpret_cast<void*>(librbd::io::AioCompletion::create(
+ cb_arg, complete_cb, this));
+ }
+
+ bool RBD::AioCompletion::is_complete()
+ {
+ librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc;
+ return c->is_complete();
+ }
+
+ int RBD::AioCompletion::wait_for_complete()
+ {
+ librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc;
+ return c->wait_for_complete();
+ }
+
+ ssize_t RBD::AioCompletion::get_return_value()
+ {
+ librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc;
+ return c->get_return_value();
+ }
+
+ void *RBD::AioCompletion::get_arg()
+ {
+ librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc;
+ return c->get_arg();
+ }
+
+ void RBD::AioCompletion::release()
+ {
+ librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc;
+ c->release();
+ delete this;
+ }
+
+ /*
+ ImageOptions
+ */
+
+ ImageOptions::ImageOptions()
+ {
+ librbd::image_options_create(&opts);
+ }
+
+ ImageOptions::ImageOptions(rbd_image_options_t opts_)
+ {
+ librbd::image_options_create_ref(&opts, opts_);
+ }
+
+ ImageOptions::ImageOptions(const ImageOptions &imgopts)
+ {
+ librbd::image_options_copy(&opts, imgopts);
+ }
+
+ ImageOptions::~ImageOptions()
+ {
+ librbd::image_options_destroy(opts);
+ }
+
+ int ImageOptions::set(int optname, const std::string& optval)
+ {
+ return librbd::image_options_set(opts, optname, optval);
+ }
+
+ int ImageOptions::set(int optname, uint64_t optval)
+ {
+ return librbd::image_options_set(opts, optname, optval);
+ }
+
+ int ImageOptions::get(int optname, std::string* optval) const
+ {
+ return librbd::image_options_get(opts, optname, optval);
+ }
+
+ int ImageOptions::get(int optname, uint64_t* optval) const
+ {
+ return librbd::image_options_get(opts, optname, optval);
+ }
+
+ int ImageOptions::is_set(int optname, bool* is_set)
+ {
+ return librbd::image_options_is_set(opts, optname, is_set);
+ }
+
+ int ImageOptions::unset(int optname)
+ {
+ return librbd::image_options_unset(opts, optname);
+ }
+
+ void ImageOptions::clear()
+ {
+ librbd::image_options_clear(opts);
+ }
+
+ bool ImageOptions::empty() const
+ {
+ return librbd::image_options_is_empty(opts);
+ }
+
+ /*
+ Image
+ */
+
+ Image::Image() : ctx(NULL)
+ {
+ }
+
+ Image::~Image()
+ {
+ close();
+ }
+
+ int Image::close()
+ {
+ int r = 0;
+ if (ctx) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
+
+ r = ictx->state->close();
+ ctx = NULL;
+
+ tracepoint(librbd, close_image_exit, r);
+ }
+ return r;
+ }
+
+ int Image::aio_close(RBD::AioCompletion *c)
+ {
+ if (!ctx) {
+ return -EINVAL;
+ }
+
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), c->pc);
+
+ ictx->state->close(new C_AioCompletion(ictx, librbd::io::AIO_TYPE_CLOSE,
+ get_aio_completion(c)));
+ ctx = NULL;
+
+ tracepoint(librbd, aio_close_image_exit, 0);
+ return 0;
+ }
+
+ int Image::resize(uint64_t size)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = ictx->operations->resize(size, true, prog_ctx);
+ tracepoint(librbd, resize_exit, r);
+ return r;
+ }
+
+ int Image::resize2(uint64_t size, bool allow_shrink, librbd::ProgressContext& pctx)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size);
+ int r = ictx->operations->resize(size, allow_shrink, pctx);
+ tracepoint(librbd, resize_exit, r);
+ return r;
+ }
+
+ int Image::resize_with_progress(uint64_t size, librbd::ProgressContext& pctx)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size);
+ int r = ictx->operations->resize(size, true, pctx);
+ tracepoint(librbd, resize_exit, r);
+ return r;
+ }
+
+ int Image::stat(image_info_t& info, size_t infosize)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, stat_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::info(ictx, info, infosize);
+ tracepoint(librbd, stat_exit, r, &info);
+ return r;
+ }
+
+ int Image::old_format(uint8_t *old)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_old_format_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_old_format(ictx, old);
+ tracepoint(librbd, get_old_format_exit, r, *old);
+ return r;
+ }
+
+ int Image::size(uint64_t *size)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_size_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_size(ictx, size);
+ tracepoint(librbd, get_size_exit, r, *size);
+ return r;
+ }
+
+ int Image::features(uint64_t *features)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_features_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_features(ictx, features);
+ tracepoint(librbd, get_features_exit, r, *features);
+ return r;
+ }
+
+ int Image::update_features(uint64_t features, bool enabled)
+ {
+ ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx);
+ tracepoint(librbd, update_features_enter, ictx, features, enabled);
+ int r = ictx->operations->update_features(features, enabled);
+ tracepoint(librbd, update_features_exit, r);
+ return r;
+ }
+
+ uint64_t Image::get_stripe_unit() const
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_stripe_unit_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ uint64_t stripe_unit = ictx->get_stripe_unit();
+ tracepoint(librbd, get_stripe_unit_exit, 0, stripe_unit);
+ return stripe_unit;
+ }
+
+ uint64_t Image::get_stripe_count() const
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_stripe_count_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ uint64_t stripe_count = ictx->get_stripe_count();
+ tracepoint(librbd, get_stripe_count_exit, 0, stripe_count);
+ return stripe_count;
+ }
+
+ int Image::get_create_timestamp(struct timespec *timestamp)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_create_timestamp_enter, ictx, ictx->name.c_str(),
+ ictx->read_only);
+ utime_t time = ictx->get_create_timestamp();
+ time.to_timespec(timestamp);
+ tracepoint(librbd, get_create_timestamp_exit, 0, timestamp);
+ return 0;
+ }
+
+ int Image::overlap(uint64_t *overlap)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_overlap_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_overlap(ictx, overlap);
+ tracepoint(librbd, get_overlap_exit, r, *overlap);
+ return r;
+ }
+
+ int Image::get_id(std::string *id)
+ {
+ ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx);
+ if (ictx->old_format) {
+ return -EINVAL;
+ }
+ *id = ictx->id;
+ return 0;
+ }
+
+ std::string Image::get_block_name_prefix()
+ {
+ ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx);
+ return ictx->object_prefix;
+ }
+
+ int64_t Image::get_data_pool_id()
+ {
+ ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx);
+ return ictx->data_ctx.get_id();
+ }
+
+ int Image::parent_info(string *parent_pool_name, string *parent_name,
+ string *parent_snap_name)
+ {
+ return parent_info2(parent_pool_name, parent_name, nullptr,
+ parent_snap_name);
+ }
+
+ int Image::parent_info2(string *parent_pool_name, string *parent_name,
+ string *parent_id, string *parent_snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_parent_info(ictx, parent_pool_name, parent_name,
+ parent_id, parent_snap_name);
+ tracepoint(librbd, get_parent_info_exit, r,
+ parent_pool_name ? parent_pool_name->c_str() : NULL,
+ parent_name ? parent_name->c_str() : NULL,
+ parent_id ? parent_id->c_str() : NULL,
+ parent_snap_name ? parent_snap_name->c_str() : NULL);
+ return r;
+ }
+
+ int Image::get_flags(uint64_t *flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, get_flags_enter, ictx);
+ int r = librbd::get_flags(ictx, flags);
+ tracepoint(librbd, get_flags_exit, ictx, r, *flags);
+ return r;
+ }
+
+ int Image::set_image_notification(int fd, int type)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, set_image_notification_enter, ictx, fd, type);
+ int r = librbd::set_image_notification(ictx, fd, type);
+ tracepoint(librbd, set_image_notification_exit, ictx, r);
+ return r;
+ }
+
+ int Image::is_exclusive_lock_owner(bool *is_owner)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, is_exclusive_lock_owner_enter, ictx);
+ int r = librbd::is_exclusive_lock_owner(ictx, is_owner);
+ tracepoint(librbd, is_exclusive_lock_owner_exit, ictx, r, *is_owner);
+ return r;
+ }
+
+ int Image::lock_acquire(rbd_lock_mode_t lock_mode)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, lock_acquire_enter, ictx, lock_mode);
+ int r = librbd::lock_acquire(ictx, lock_mode);
+ tracepoint(librbd, lock_acquire_exit, ictx, r);
+ return r;
+ }
+
+ int Image::lock_release()
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, lock_release_enter, ictx);
+ int r = librbd::lock_release(ictx);
+ tracepoint(librbd, lock_release_exit, ictx, r);
+ return r;
+ }
+
+ int Image::lock_get_owners(rbd_lock_mode_t *lock_mode,
+ std::list<std::string> *lock_owners)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, lock_get_owners_enter, ictx);
+ int r = librbd::lock_get_owners(ictx, lock_mode, lock_owners);
+ tracepoint(librbd, lock_get_owners_exit, ictx, r);
+ return r;
+ }
+
+ int Image::lock_break(rbd_lock_mode_t lock_mode,
+ const std::string &lock_owner)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, lock_break_enter, ictx, lock_mode, lock_owner.c_str());
+ int r = librbd::lock_break(ictx, lock_mode, lock_owner);
+ tracepoint(librbd, lock_break_exit, ictx, r);
+ return r;
+ }
+
+ int Image::rebuild_object_map(ProgressContext &prog_ctx)
+ {
+ ImageCtx *ictx = reinterpret_cast<ImageCtx*>(ctx);
+ return ictx->operations->rebuild_object_map(prog_ctx);
+ }
+
+ int Image::check_object_map(ProgressContext &prog_ctx)
+ {
+ ImageCtx *ictx = reinterpret_cast<ImageCtx*>(ctx);
+ return ictx->operations->check_object_map(prog_ctx);
+ }
+
+ int Image::copy(IoCtx& dest_io_ctx, const char *destname)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname);
+ ImageOptions opts;
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0);
+ tracepoint(librbd, copy_exit, r);
+ return r;
+ }
+
+ int Image::copy2(Image& dest)
+ {
+ ImageCtx *srcctx = (ImageCtx *)ctx;
+ ImageCtx *destctx = (ImageCtx *)dest.ctx;
+ tracepoint(librbd, copy2_enter, srcctx, srcctx->name.c_str(), srcctx->snap_name.c_str(), srcctx->read_only, destctx, destctx->name.c_str(), destctx->snap_name.c_str(), destctx->read_only);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(srcctx, destctx, prog_ctx, 0);
+ tracepoint(librbd, copy2_exit, r);
+ return r;
+ }
+
+ int Image::copy3(IoCtx& dest_io_ctx, const char *destname, ImageOptions& opts)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0);
+ tracepoint(librbd, copy3_exit, r);
+ return r;
+ }
+
+ int Image::copy4(IoCtx& dest_io_ctx, const char *destname, ImageOptions& opts, size_t sparse_size)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts, sparse_size);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, sparse_size);
+ tracepoint(librbd, copy4_exit, r);
+ return r;
+ }
+
+ int Image::copy_with_progress(IoCtx& dest_io_ctx, const char *destname,
+ librbd::ProgressContext &pctx)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname);
+ ImageOptions opts;
+ int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, 0);
+ tracepoint(librbd, copy_exit, r);
+ return r;
+ }
+
+ int Image::copy_with_progress2(Image& dest, librbd::ProgressContext &pctx)
+ {
+ ImageCtx *srcctx = (ImageCtx *)ctx;
+ ImageCtx *destctx = (ImageCtx *)dest.ctx;
+ tracepoint(librbd, copy2_enter, srcctx, srcctx->name.c_str(), srcctx->snap_name.c_str(), srcctx->read_only, destctx, destctx->name.c_str(), destctx->snap_name.c_str(), destctx->read_only);
+ int r = librbd::copy(srcctx, destctx, pctx, 0);
+ tracepoint(librbd, copy2_exit, r);
+ return r;
+ }
+
+ int Image::copy_with_progress3(IoCtx& dest_io_ctx, const char *destname,
+ ImageOptions& opts,
+ librbd::ProgressContext &pctx)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts);
+ int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, 0);
+ tracepoint(librbd, copy3_exit, r);
+ return r;
+ }
+
+ int Image::copy_with_progress4(IoCtx& dest_io_ctx, const char *destname,
+ ImageOptions& opts,
+ librbd::ProgressContext &pctx,
+ size_t sparse_size)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts, sparse_size);
+ int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, sparse_size);
+ tracepoint(librbd, copy4_exit, r);
+ return r;
+ }
+
+ int Image::flatten()
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
+ librbd::NoOpProgressContext prog_ctx;
+ int r = ictx->operations->flatten(prog_ctx);
+ tracepoint(librbd, flatten_exit, r);
+ return r;
+ }
+
+ int Image::flatten_with_progress(librbd::ProgressContext& prog_ctx)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
+ int r = ictx->operations->flatten(prog_ctx);
+ tracepoint(librbd, flatten_exit, r);
+ return r;
+ }
+
+ int Image::list_children(set<pair<string, string> > *children)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::list_children(ictx, *children);
+ if (r >= 0) {
+ for (set<pair<string, string> >::const_iterator it = children->begin();
+ it != children->end(); ++it) {
+ tracepoint(librbd, list_children_entry, it->first.c_str(), it->second.c_str());
+ }
+ }
+ tracepoint(librbd, list_children_exit, r);
+ return r;
+ }
+
+ int Image::list_lockers(std::list<librbd::locker_t> *lockers,
+ bool *exclusive, string *tag)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, list_lockers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::list_lockers(ictx, lockers, exclusive, tag);
+ if (r >= 0) {
+ for (std::list<librbd::locker_t>::const_iterator it = lockers->begin();
+ it != lockers->end(); ++it) {
+ tracepoint(librbd, list_lockers_entry, it->client.c_str(), it->cookie.c_str(), it->address.c_str());
+ }
+ }
+ tracepoint(librbd, list_lockers_exit, r);
+ return r;
+ }
+
+ int Image::lock_exclusive(const string& cookie)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, lock_exclusive_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str());
+ int r = librbd::lock(ictx, true, cookie, "");
+ tracepoint(librbd, lock_exclusive_exit, r);
+ return r;
+ }
+
+ int Image::lock_shared(const string& cookie, const std::string& tag)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, lock_shared_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str(), tag.c_str());
+ int r = librbd::lock(ictx, false, cookie, tag);
+ tracepoint(librbd, lock_shared_exit, r);
+ return r;
+ }
+
+ int Image::unlock(const string& cookie)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, unlock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str());
+ int r = librbd::unlock(ictx, cookie);
+ tracepoint(librbd, unlock_exit, r);
+ return r;
+ }
+
+ int Image::break_lock(const string& client, const string& cookie)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, break_lock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, client.c_str(), cookie.c_str());
+ int r = librbd::break_lock(ictx, client, cookie);
+ tracepoint(librbd, break_lock_exit, r);
+ return r;
+ }
+
+ int Image::snap_create(const char *snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(),
+ snap_name);
+ tracepoint(librbd, snap_create_exit, r);
+ return r;
+ }
+
+ int Image::snap_remove(const char *snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_remove_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::snap_remove(ictx, snap_name, 0, prog_ctx);
+ tracepoint(librbd, snap_remove_exit, r);
+ return r;
+ }
+
+ int Image::snap_remove2(const char *snap_name, uint32_t flags, ProgressContext& pctx)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_remove2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name, flags);
+ int r = librbd::snap_remove(ictx, snap_name, flags, pctx);
+ tracepoint(librbd, snap_remove_exit, r);
+ return r;
+ }
+
+ int Image::snap_rollback(const char *snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx);
+ tracepoint(librbd, snap_rollback_exit, r);
+ return r;
+ }
+
+ int Image::snap_rename(const char *srcname, const char *dstname)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_rename_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, srcname, dstname);
+ int r = ictx->operations->snap_rename(srcname, dstname);
+ tracepoint(librbd, snap_rename_exit, r);
+ return r;
+ }
+
+ int Image::snap_rollback_with_progress(const char *snap_name,
+ ProgressContext& prog_ctx)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx);
+ tracepoint(librbd, snap_rollback_exit, r);
+ return r;
+ }
+
+ int Image::snap_protect(const char *snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_protect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name);
+ tracepoint(librbd, snap_protect_exit, r);
+ return r;
+ }
+
+ int Image::snap_unprotect(const char *snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_unprotect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), snap_name);
+ tracepoint(librbd, snap_unprotect_exit, r);
+ return r;
+ }
+
+ int Image::snap_is_protected(const char *snap_name, bool *is_protected)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_is_protected_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = librbd::snap_is_protected(ictx, snap_name, is_protected);
+ tracepoint(librbd, snap_is_protected_exit, r, *is_protected ? 1 : 0);
+ return r;
+ }
+
+ int Image::snap_list(vector<librbd::snap_info_t>& snaps)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_list_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, &snaps);
+ int r = librbd::snap_list(ictx, snaps);
+ if (r >= 0) {
+ for (int i = 0, n = snaps.size(); i < n; i++) {
+ tracepoint(librbd, snap_list_entry, snaps[i].id, snaps[i].size, snaps[i].name.c_str());
+ }
+ }
+ tracepoint(librbd, snap_list_exit, r, snaps.size());
+ if (r >= 0) {
+ // A little ugly, but the C++ API doesn't need a Image::snap_list_end,
+ // and we want the tracepoints to mirror the C API
+ tracepoint(librbd, snap_list_end_enter, &snaps);
+ tracepoint(librbd, snap_list_end_exit);
+ }
+ return r;
+ }
+
+ bool Image::snap_exists(const char *snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_exists_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ bool exists;
+ int r = librbd::snap_exists(ictx, cls::rbd::UserSnapshotNamespace(), snap_name, &exists);
+ tracepoint(librbd, snap_exists_exit, r, exists);
+ if (r < 0) {
+ // lie to caller since we don't know the real answer yet.
+ return false;
+ }
+ return exists;
+ }
+
+ // A safer verion of snap_exists.
+ int Image::snap_exists2(const char *snap_name, bool *exists)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_exists_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = librbd::snap_exists(ictx, cls::rbd::UserSnapshotNamespace(), snap_name, exists);
+ tracepoint(librbd, snap_exists_exit, r, *exists);
+ return r;
+ }
+
+ int Image::snap_get_timestamp(uint64_t snap_id, struct timespec *timestamp)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_get_timestamp_enter, ictx, ictx->name.c_str());
+ int r = librbd::snap_get_timestamp(ictx, snap_id, timestamp);
+ tracepoint(librbd, snap_get_timestamp_exit, r);
+ return r;
+ }
+
+ int Image::snap_get_limit(uint64_t *limit)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_get_limit_enter, ictx, ictx->name.c_str());
+ int r = librbd::snap_get_limit(ictx, limit);
+ tracepoint(librbd, snap_get_limit_exit, r, *limit);
+ return r;
+ }
+
+ int Image::snap_set_limit(uint64_t limit)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+
+ tracepoint(librbd, snap_set_limit_enter, ictx, ictx->name.c_str(), limit);
+ int r = ictx->operations->snap_set_limit(limit);
+ tracepoint(librbd, snap_set_limit_exit, r);
+ return r;
+ }
+
+ int Image::snap_set(const char *snap_name)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, snap_set_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = librbd::snap_set(ictx, cls::rbd::UserSnapshotNamespace(), snap_name);
+ tracepoint(librbd, snap_set_exit, r);
+ return r;
+ }
+
+ ssize_t Image::read(uint64_t ofs, size_t len, bufferlist& bl)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ bufferptr ptr(len);
+ bl.push_back(std::move(ptr));
+ int r = ictx->io_work_queue->read(ofs, len, io::ReadResult{&bl}, 0);
+ tracepoint(librbd, read_exit, r);
+ return r;
+ }
+
+ ssize_t Image::read2(uint64_t ofs, size_t len, bufferlist& bl, int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, ofs, len, op_flags);
+ bufferptr ptr(len);
+ bl.push_back(std::move(ptr));
+ int r = ictx->io_work_queue->read(ofs, len, io::ReadResult{&bl}, op_flags);
+ tracepoint(librbd, read_exit, r);
+ return r;
+ }
+
+ int64_t Image::read_iterate(uint64_t ofs, size_t len,
+ int (*cb)(uint64_t, size_t, const char *, void *),
+ void *arg)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, read_iterate_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg);
+ tracepoint(librbd, read_iterate_exit, r);
+ return r;
+ }
+
+ int Image::read_iterate2(uint64_t ofs, uint64_t len,
+ int (*cb)(uint64_t, size_t, const char *, void *),
+ void *arg)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, read_iterate2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg);
+ if (r > 0)
+ r = 0;
+ tracepoint(librbd, read_iterate2_exit, r);
+ return (int)r;
+ }
+
+ int Image::diff_iterate(const char *fromsnapname,
+ uint64_t ofs, uint64_t len,
+ int (*cb)(uint64_t, size_t, int, void *),
+ void *arg)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len,
+ true, false);
+ int r = librbd::api::DiffIterate<>::diff_iterate(ictx,
+ cls::rbd::UserSnapshotNamespace(),
+ fromsnapname, ofs,
+ len, true, false, cb, arg);
+ tracepoint(librbd, diff_iterate_exit, r);
+ return r;
+ }
+
+ int Image::diff_iterate2(const char *fromsnapname, uint64_t ofs, uint64_t len,
+ bool include_parent, bool whole_object,
+ int (*cb)(uint64_t, size_t, int, void *), void *arg)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len,
+ include_parent, whole_object);
+ int r = librbd::api::DiffIterate<>::diff_iterate(ictx,
+ cls::rbd::UserSnapshotNamespace(),
+ fromsnapname, ofs,
+ len, include_parent,
+ whole_object, cb, arg);
+ tracepoint(librbd, diff_iterate_exit, r);
+ return r;
+ }
+
+ ssize_t Image::write(uint64_t ofs, size_t len, bufferlist& bl)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len, bl.length() < len ? NULL : bl.c_str());
+ if (bl.length() < len) {
+ tracepoint(librbd, write_exit, -EINVAL);
+ return -EINVAL;
+ }
+ int r = ictx->io_work_queue->write(ofs, len, bufferlist{bl}, 0);
+ tracepoint(librbd, write_exit, r);
+ return r;
+ }
+
+ ssize_t Image::write2(uint64_t ofs, size_t len, bufferlist& bl, int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only,
+ ofs, len, bl.length() < len ? NULL : bl.c_str(), op_flags);
+ if (bl.length() < len) {
+ tracepoint(librbd, write_exit, -EINVAL);
+ return -EINVAL;
+ }
+ int r = ictx->io_work_queue->write(ofs, len, bufferlist{bl}, op_flags);
+ tracepoint(librbd, write_exit, r);
+ return r;
+ }
+
+ int Image::discard(uint64_t ofs, uint64_t len)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ if (len > std::numeric_limits<int32_t>::max()) {
+ tracepoint(librbd, discard_exit, -EINVAL);
+ return -EINVAL;
+ }
+ int r = ictx->io_work_queue->discard(ofs, len, ictx->skip_partial_discard);
+ tracepoint(librbd, discard_exit, r);
+ return r;
+ }
+
+ ssize_t Image::writesame(uint64_t ofs, size_t len, bufferlist& bl, int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, ofs, len, bl.length() <= 0 ? NULL : bl.c_str(), bl.length(),
+ op_flags);
+ if (bl.length() <= 0 || len % bl.length()) {
+ tracepoint(librbd, writesame_exit, -EINVAL);
+ return -EINVAL;
+ }
+
+ if (mem_is_zero(bl.c_str(), bl.length())) {
+ int r = ictx->io_work_queue->discard(ofs, len, false);
+ tracepoint(librbd, writesame_exit, r);
+ return r;
+ }
+
+ int r = ictx->io_work_queue->writesame(ofs, len, bufferlist{bl}, op_flags);
+ tracepoint(librbd, writesame_exit, r);
+ return r;
+ }
+
+ ssize_t Image::compare_and_write(uint64_t ofs, size_t len,
+ ceph::bufferlist &cmp_bl, ceph::bufferlist& bl,
+ uint64_t *mismatch_off, int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, compare_and_write_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(),
+ ictx->read_only, ofs, len, cmp_bl.length() < len ? NULL : cmp_bl.c_str(),
+ bl.length() < len ? NULL : bl.c_str(), op_flags);
+
+ if (bl.length() < len) {
+ tracepoint(librbd, write_exit, -EINVAL);
+ return -EINVAL;
+ }
+
+ int r = ictx->io_work_queue->compare_and_write(ofs, len, bufferlist{cmp_bl},
+ bufferlist{bl}, mismatch_off,
+ op_flags);
+
+ tracepoint(librbd, compare_and_write_exit, r);
+
+ return r;
+ }
+ int Image::aio_write(uint64_t off, size_t len, bufferlist& bl,
+ RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, bl.length() < len ? NULL : bl.c_str(), c->pc);
+ if (bl.length() < len) {
+ tracepoint(librbd, aio_write_exit, -EINVAL);
+ return -EINVAL;
+ }
+ ictx->io_work_queue->aio_write(get_aio_completion(c), off, len,
+ bufferlist{bl}, 0);
+ tracepoint(librbd, aio_write_exit, 0);
+ return 0;
+ }
+
+ int Image::aio_write2(uint64_t off, size_t len, bufferlist& bl,
+ RBD::AioCompletion *c, int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, off, len, bl.length() < len ? NULL : bl.c_str(), c->pc, op_flags);
+ if (bl.length() < len) {
+ tracepoint(librbd, aio_write_exit, -EINVAL);
+ return -EINVAL;
+ }
+ ictx->io_work_queue->aio_write(get_aio_completion(c), off, len,
+ bufferlist{bl}, op_flags);
+ tracepoint(librbd, aio_write_exit, 0);
+ return 0;
+ }
+
+ int Image::aio_discard(uint64_t off, uint64_t len, RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, c->pc);
+ ictx->io_work_queue->aio_discard(get_aio_completion(c), off, len, ictx->skip_partial_discard);
+ tracepoint(librbd, aio_discard_exit, 0);
+ return 0;
+ }
+
+ int Image::aio_read(uint64_t off, size_t len, bufferlist& bl,
+ RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, bl.c_str(), c->pc);
+ ldout(ictx->cct, 10) << "Image::aio_read() buf=" << (void *)bl.c_str() << "~"
+ << (void *)(bl.c_str() + len - 1) << dendl;
+ ictx->io_work_queue->aio_read(get_aio_completion(c), off, len,
+ io::ReadResult{&bl}, 0);
+ tracepoint(librbd, aio_read_exit, 0);
+ return 0;
+ }
+
+ int Image::aio_read2(uint64_t off, size_t len, bufferlist& bl,
+ RBD::AioCompletion *c, int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, off, len, bl.c_str(), c->pc, op_flags);
+ ldout(ictx->cct, 10) << "Image::aio_read() buf=" << (void *)bl.c_str() << "~"
+ << (void *)(bl.c_str() + len - 1) << dendl;
+ ictx->io_work_queue->aio_read(get_aio_completion(c), off, len,
+ io::ReadResult{&bl}, op_flags);
+ tracepoint(librbd, aio_read_exit, 0);
+ return 0;
+ }
+
+ int Image::flush()
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::flush(ictx);
+ tracepoint(librbd, flush_exit, r);
+ return r;
+ }
+
+ int Image::aio_flush(RBD::AioCompletion *c)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc);
+ ictx->io_work_queue->aio_flush(get_aio_completion(c));
+ tracepoint(librbd, aio_flush_exit, 0);
+ return 0;
+ }
+
+ int Image::aio_writesame(uint64_t off, size_t len, bufferlist& bl,
+ RBD::AioCompletion *c, int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, off, len, bl.length() <= len ? NULL : bl.c_str(), bl.length(),
+ c->pc, op_flags);
+ if (bl.length() <= 0 || len % bl.length()) {
+ tracepoint(librbd, aio_writesame_exit, -EINVAL);
+ return -EINVAL;
+ }
+
+ if (mem_is_zero(bl.c_str(), bl.length())) {
+ ictx->io_work_queue->aio_discard(get_aio_completion(c), off, len, false);
+ tracepoint(librbd, aio_writesame_exit, 0);
+ return 0;
+ }
+
+ ictx->io_work_queue->aio_writesame(get_aio_completion(c), off, len,
+ bufferlist{bl}, op_flags);
+ tracepoint(librbd, aio_writesame_exit, 0);
+ return 0;
+ }
+
+ int Image::aio_compare_and_write(uint64_t off, size_t len,
+ ceph::bufferlist& cmp_bl, ceph::bufferlist& bl,
+ RBD::AioCompletion *c, uint64_t *mismatch_off,
+ int op_flags)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, aio_compare_and_write_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(),
+ ictx->read_only, off, len, cmp_bl.length() < len ? NULL : cmp_bl.c_str(),
+ bl.length() < len ? NULL : bl.c_str(), c->pc, op_flags);
+
+ if (bl.length() < len) {
+ tracepoint(librbd, compare_and_write_exit, -EINVAL);
+ return -EINVAL;
+ }
+
+ ictx->io_work_queue->aio_compare_and_write(get_aio_completion(c), off, len,
+ bufferlist{cmp_bl}, bufferlist{bl},
+ mismatch_off, op_flags, false);
+
+ tracepoint(librbd, aio_compare_and_write_exit, 0);
+
+ return 0;
+ }
+
+ int Image::invalidate_cache()
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, invalidate_cache_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::invalidate_cache(ictx);
+ tracepoint(librbd, invalidate_cache_exit, r);
+ return r;
+ }
+
+ int Image::poll_io_events(RBD::AioCompletion **comps, int numcomp)
+ {
+ io::AioCompletion *cs[numcomp];
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, poll_io_events_enter, ictx, numcomp);
+ int r = librbd::poll_io_events(ictx, cs, numcomp);
+ tracepoint(librbd, poll_io_events_exit, r);
+ if (r > 0) {
+ for (int i = 0; i < numcomp; ++i)
+ comps[i] = (RBD::AioCompletion *)cs[i]->rbd_comp;
+ }
+ return r;
+ }
+
+ int Image::metadata_get(const std::string &key, std::string *value)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, metadata_get_enter, ictx, key.c_str());
+ int r = librbd::metadata_get(ictx, key, value);
+ if (r < 0) {
+ tracepoint(librbd, metadata_get_exit, r, key.c_str(), NULL);
+ } else {
+ tracepoint(librbd, metadata_get_exit, r, key.c_str(), value->c_str());
+ }
+ return r;
+ }
+
+ int Image::metadata_set(const std::string &key, const std::string &value)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, metadata_set_enter, ictx, key.c_str(), value.c_str());
+ int r = ictx->operations->metadata_set(key, value);
+ tracepoint(librbd, metadata_set_exit, r);
+ return r;
+ }
+
+ int Image::metadata_remove(const std::string &key)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, metadata_remove_enter, ictx, key.c_str());
+ int r = ictx->operations->metadata_remove(key);
+ tracepoint(librbd, metadata_remove_exit, r);
+ return r;
+ }
+
+ int Image::metadata_list(const std::string &start, uint64_t max, map<string, bufferlist> *pairs)
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, metadata_list_enter, ictx);
+ int r = librbd::metadata_list(ictx, start, max, pairs);
+ if (r >= 0) {
+ for (map<string, bufferlist>::iterator it = pairs->begin();
+ it != pairs->end(); ++it) {
+ tracepoint(librbd, metadata_list_entry, it->first.c_str(), it->second.c_str());
+ }
+ }
+ tracepoint(librbd, metadata_list_exit, r);
+ return r;
+ }
+
+ int Image::mirror_image_enable() {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ return librbd::api::Mirror<>::image_enable(ictx, false);
+ }
+
+ int Image::mirror_image_disable(bool force) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ return librbd::api::Mirror<>::image_disable(ictx, force);
+ }
+
+ int Image::mirror_image_promote(bool force) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ return librbd::api::Mirror<>::image_promote(ictx, force);
+ }
+
+ int Image::mirror_image_demote() {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ return librbd::api::Mirror<>::image_demote(ictx);
+ }
+
+ int Image::mirror_image_resync()
+ {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ return librbd::api::Mirror<>::image_resync(ictx);
+ }
+
+ int Image::mirror_image_get_info(mirror_image_info_t *mirror_image_info,
+ size_t info_size) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ return librbd::api::Mirror<>::image_get_info(ictx, mirror_image_info,
+ info_size);
+ }
+
+ int Image::mirror_image_get_status(mirror_image_status_t *mirror_image_status,
+ size_t status_size) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ return librbd::api::Mirror<>::image_get_status(ictx, mirror_image_status,
+ status_size);
+ }
+
+ int Image::aio_mirror_image_promote(bool force, RBD::AioCompletion *c) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ librbd::api::Mirror<>::image_promote(
+ ictx, force, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(c)));
+ return 0;
+ }
+
+ int Image::aio_mirror_image_demote(RBD::AioCompletion *c) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ librbd::api::Mirror<>::image_demote(
+ ictx, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(c)));
+ return 0;
+ }
+
+ int Image::aio_mirror_image_get_info(mirror_image_info_t *mirror_image_info,
+ size_t info_size,
+ RBD::AioCompletion *c) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ librbd::api::Mirror<>::image_get_info(
+ ictx, mirror_image_info, info_size,
+ new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(c)));
+ return 0;
+ }
+
+ int Image::aio_mirror_image_get_status(mirror_image_status_t *status,
+ size_t status_size,
+ RBD::AioCompletion *c) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ librbd::api::Mirror<>::image_get_status(
+ ictx, status, status_size,
+ new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(c)));
+ return 0;
+ }
+
+ int Image::update_watch(UpdateWatchCtx *wctx, uint64_t *handle) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, update_watch_enter, ictx, wctx);
+ int r = ictx->state->register_update_watcher(wctx, handle);
+ tracepoint(librbd, update_watch_exit, r, *handle);
+ return r;
+ }
+
+ int Image::update_unwatch(uint64_t handle) {
+ ImageCtx *ictx = (ImageCtx *)ctx;
+ tracepoint(librbd, update_unwatch_enter, ictx, handle);
+ int r = ictx->state->unregister_update_watcher(handle);
+ tracepoint(librbd, update_unwatch_exit, r);
+ return r;
+ }
+
+} // namespace librbd
+
+extern "C" void rbd_version(int *major, int *minor, int *extra)
+{
+ if (major)
+ *major = LIBRBD_VER_MAJOR;
+ if (minor)
+ *minor = LIBRBD_VER_MINOR;
+ if (extra)
+ *extra = LIBRBD_VER_EXTRA;
+}
+
+extern "C" void rbd_image_options_create(rbd_image_options_t* opts)
+{
+ librbd::image_options_create(opts);
+}
+
+extern "C" void rbd_image_options_destroy(rbd_image_options_t opts)
+{
+ librbd::image_options_destroy(opts);
+}
+
+extern "C" int rbd_image_options_set_string(rbd_image_options_t opts, int optname,
+ const char* optval)
+{
+ return librbd::image_options_set(opts, optname, optval);
+}
+
+extern "C" int rbd_image_options_set_uint64(rbd_image_options_t opts, int optname,
+ uint64_t optval)
+{
+ return librbd::image_options_set(opts, optname, optval);
+}
+
+extern "C" int rbd_image_options_get_string(rbd_image_options_t opts, int optname,
+ char* optval, size_t maxlen)
+{
+ std::string optval_;
+
+ int r = librbd::image_options_get(opts, optname, &optval_);
+
+ if (r < 0) {
+ return r;
+ }
+
+ if (optval_.size() >= maxlen) {
+ return -E2BIG;
+ }
+
+ strncpy(optval, optval_.c_str(), maxlen);
+
+ return 0;
+}
+
+extern "C" int rbd_image_options_get_uint64(rbd_image_options_t opts, int optname,
+ uint64_t* optval)
+{
+ return librbd::image_options_get(opts, optname, optval);
+}
+
+extern "C" int rbd_image_options_is_set(rbd_image_options_t opts, int optname,
+ bool* is_set)
+{
+ return librbd::image_options_is_set(opts, optname, is_set);
+}
+
+extern "C" int rbd_image_options_unset(rbd_image_options_t opts, int optname)
+{
+ return librbd::image_options_unset(opts, optname);
+}
+
+extern "C" void rbd_image_options_clear(rbd_image_options_t opts)
+{
+ librbd::image_options_clear(opts);
+}
+
+extern "C" int rbd_image_options_is_empty(rbd_image_options_t opts)
+{
+ return librbd::image_options_is_empty(opts);
+}
+
+/* pool mirroring */
+extern "C" int rbd_mirror_mode_get(rados_ioctx_t p,
+ rbd_mirror_mode_t *mirror_mode) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ return librbd::api::Mirror<>::mode_get(io_ctx, mirror_mode);
+}
+
+extern "C" int rbd_mirror_mode_set(rados_ioctx_t p,
+ rbd_mirror_mode_t mirror_mode) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ return librbd::api::Mirror<>::mode_set(io_ctx, mirror_mode);
+}
+
+extern "C" int rbd_mirror_peer_add(rados_ioctx_t p, char *uuid,
+ size_t uuid_max_length,
+ const char *cluster_name,
+ const char *client_name) {
+ static const std::size_t UUID_LENGTH = 36;
+
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+
+ if (uuid_max_length < UUID_LENGTH + 1) {
+ return -E2BIG;
+ }
+
+ std::string uuid_str;
+ int r = librbd::api::Mirror<>::peer_add(io_ctx, &uuid_str, cluster_name,
+ client_name);
+ if (r >= 0) {
+ strncpy(uuid, uuid_str.c_str(), uuid_max_length);
+ uuid[uuid_max_length - 1] = '\0';
+ }
+ return r;
+}
+
+extern "C" int rbd_mirror_peer_remove(rados_ioctx_t p, const char *uuid) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ int r = librbd::api::Mirror<>::peer_remove(io_ctx, uuid);
+ return r;
+}
+
+extern "C" int rbd_mirror_peer_list(rados_ioctx_t p,
+ rbd_mirror_peer_t *peers, int *max_peers) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+
+ std::vector<librbd::mirror_peer_t> peer_vector;
+ int r = librbd::api::Mirror<>::peer_list(io_ctx, &peer_vector);
+ if (r < 0) {
+ return r;
+ }
+
+ if (*max_peers < static_cast<int>(peer_vector.size())) {
+ *max_peers = static_cast<int>(peer_vector.size());
+ return -ERANGE;
+ }
+
+ for (int i = 0; i < static_cast<int>(peer_vector.size()); ++i) {
+ peers[i].uuid = strdup(peer_vector[i].uuid.c_str());
+ peers[i].cluster_name = strdup(peer_vector[i].cluster_name.c_str());
+ peers[i].client_name = strdup(peer_vector[i].client_name.c_str());
+ }
+ *max_peers = static_cast<int>(peer_vector.size());
+ return 0;
+}
+
+extern "C" void rbd_mirror_peer_list_cleanup(rbd_mirror_peer_t *peers,
+ int max_peers) {
+ for (int i = 0; i < max_peers; ++i) {
+ free(peers[i].uuid);
+ free(peers[i].cluster_name);
+ free(peers[i].client_name);
+ }
+}
+
+extern "C" int rbd_mirror_peer_set_client(rados_ioctx_t p, const char *uuid,
+ const char *client_name) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ return librbd::api::Mirror<>::peer_set_client(io_ctx, uuid, client_name);
+}
+
+extern "C" int rbd_mirror_peer_set_cluster(rados_ioctx_t p, const char *uuid,
+ const char *cluster_name) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ return librbd::api::Mirror<>::peer_set_cluster(io_ctx, uuid, cluster_name);
+}
+
+extern "C" int rbd_mirror_image_status_list(rados_ioctx_t p,
+ const char *start_id, size_t max, char **image_ids,
+ rbd_mirror_image_status_t *images, size_t *len) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ std::map<std::string, librbd::mirror_image_status_t> cpp_images;
+
+ int r = librbd::api::Mirror<>::image_status_list(io_ctx, start_id, max,
+ &cpp_images);
+ if (r < 0) {
+ return r;
+ }
+
+ size_t i = 0;
+ for (auto &it : cpp_images) {
+ assert(i < max);
+ const std::string &image_id = it.first;
+ image_ids[i] = strdup(image_id.c_str());
+ mirror_image_status_cpp_to_c(it.second, &images[i]);
+ i++;
+ }
+ *len = i;
+ return 0;
+}
+
+extern "C" void rbd_mirror_image_status_list_cleanup(char **image_ids,
+ rbd_mirror_image_status_t *images, size_t len) {
+ for (size_t i = 0; i < len; i++) {
+ free(image_ids[i]);
+ free(images[i].name);
+ free(images[i].info.global_id);
+ free(images[i].description);
+ }
+}
+
+extern "C" int rbd_mirror_image_status_summary(rados_ioctx_t p,
+ rbd_mirror_image_status_state_t *states, int *counts, size_t *maxlen) {
+
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+
+ std::map<librbd::mirror_image_status_state_t, int> states_;
+ int r = librbd::api::Mirror<>::image_status_summary(io_ctx, &states_);
+ if (r < 0) {
+ return r;
+ }
+
+ size_t i = 0;
+ for (auto &it : states_) {
+ if (i == *maxlen) {
+ return -ERANGE;
+ }
+ states[i] = it.first;
+ counts[i] = it.second;
+ i++;
+ }
+ *maxlen = i;
+ return 0;
+}
+
+/* images */
+extern "C" int rbd_list(rados_ioctx_t p, char *names, size_t *size)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id());
+ vector<string> cpp_names;
+ int r = librbd::list(io_ctx, cpp_names);
+ if (r < 0) {
+ tracepoint(librbd, list_exit, r, *size);
+ return r;
+ }
+
+ size_t expected_size = 0;
+
+ for (size_t i = 0; i < cpp_names.size(); i++) {
+ expected_size += cpp_names[i].size() + 1;
+ }
+ if (*size < expected_size) {
+ *size = expected_size;
+ tracepoint(librbd, list_exit, -ERANGE, *size);
+ return -ERANGE;
+ }
+
+ if (!names)
+ return -EINVAL;
+
+ for (int i = 0; i < (int)cpp_names.size(); i++) {
+ const char* name = cpp_names[i].c_str();
+ tracepoint(librbd, list_entry, name);
+ strcpy(names, name);
+ names += strlen(names) + 1;
+ }
+ tracepoint(librbd, list_exit, (int)expected_size, *size);
+ return (int)expected_size;
+}
+
+extern "C" int rbd_create(rados_ioctx_t p, const char *name, uint64_t size, int *order)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, *order);
+ int r = librbd::create(io_ctx, name, size, order);
+ tracepoint(librbd, create_exit, r, *order);
+ return r;
+}
+
+extern "C" int rbd_create2(rados_ioctx_t p, const char *name,
+ uint64_t size, uint64_t features,
+ int *order)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create2_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order);
+ int r = librbd::create(io_ctx, name, size, false, features, order, 0, 0);
+ tracepoint(librbd, create2_exit, r, *order);
+ return r;
+}
+
+extern "C" int rbd_create3(rados_ioctx_t p, const char *name,
+ uint64_t size, uint64_t features,
+ int *order,
+ uint64_t stripe_unit, uint64_t stripe_count)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create3_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order, stripe_unit, stripe_count);
+ int r = librbd::create(io_ctx, name, size, false, features, order,
+ stripe_unit, stripe_count);
+ tracepoint(librbd, create3_exit, r, *order);
+ return r;
+}
+
+extern "C" int rbd_create4(rados_ioctx_t p, const char *name,
+ uint64_t size, rbd_image_options_t opts)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, create4_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, opts);
+ librbd::ImageOptions opts_(opts);
+ int r = librbd::create(io_ctx, name, "", size, opts_, "", "", false);
+ tracepoint(librbd, create4_exit, r);
+ return r;
+}
+
+extern "C" int rbd_clone(rados_ioctx_t p_ioctx, const char *p_name,
+ const char *p_snap_name, rados_ioctx_t c_ioctx,
+ const char *c_name, uint64_t features, int *c_order)
+{
+ librados::IoCtx p_ioc, c_ioc;
+ librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc);
+ librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc));
+ tracepoint(librbd, clone_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, features);
+ int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name,
+ features, c_order, 0, 0);
+ tracepoint(librbd, clone_exit, r, *c_order);
+ return r;
+}
+
+extern "C" int rbd_clone2(rados_ioctx_t p_ioctx, const char *p_name,
+ const char *p_snap_name, rados_ioctx_t c_ioctx,
+ const char *c_name, uint64_t features, int *c_order,
+ uint64_t stripe_unit, int stripe_count)
+{
+ librados::IoCtx p_ioc, c_ioc;
+ librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc);
+ librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc));
+ tracepoint(librbd, clone2_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, features, stripe_unit, stripe_count);
+ int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name,
+ features, c_order, stripe_unit, stripe_count);
+ tracepoint(librbd, clone2_exit, r, *c_order);
+ return r;
+}
+
+extern "C" int rbd_clone3(rados_ioctx_t p_ioctx, const char *p_name,
+ const char *p_snap_name, rados_ioctx_t c_ioctx,
+ const char *c_name, rbd_image_options_t c_opts)
+{
+ librados::IoCtx p_ioc, c_ioc;
+ librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc);
+ librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc));
+ tracepoint(librbd, clone3_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, c_opts);
+ librbd::ImageOptions c_opts_(c_opts);
+ int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name, c_opts_);
+ tracepoint(librbd, clone3_exit, r);
+ return r;
+}
+
+extern "C" int rbd_remove(rados_ioctx_t p, const char *name)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::remove(io_ctx, name, "", prog_ctx);
+ tracepoint(librbd, remove_exit, r);
+ return r;
+}
+
+extern "C" int rbd_remove_with_progress(rados_ioctx_t p, const char *name,
+ librbd_progress_fn_t cb, void *cbdata)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name);
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ int r = librbd::remove(io_ctx, name, "", prog_ctx);
+ tracepoint(librbd, remove_exit, r);
+ return r;
+}
+
+extern "C" int rbd_trash_move(rados_ioctx_t p, const char *name,
+ uint64_t delay) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_move_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), name);
+ int r = librbd::trash_move(io_ctx, RBD_TRASH_IMAGE_SOURCE_USER, name, delay);
+ tracepoint(librbd, trash_move_exit, r);
+ return r;
+}
+
+extern "C" int rbd_trash_get(rados_ioctx_t io, const char *id,
+ rbd_trash_image_info_t *info) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(io, io_ctx);
+
+ librbd::trash_image_info_t cpp_info;
+ int r = librbd::trash_get(io_ctx, id, &cpp_info);
+ if (r < 0) {
+ return r;
+ }
+
+ trash_image_info_cpp_to_c(cpp_info, info);
+ return 0;
+}
+
+extern "C" void rbd_trash_get_cleanup(rbd_trash_image_info_t *info) {
+ free(info->id);
+ free(info->name);
+}
+
+extern "C" int rbd_trash_list(rados_ioctx_t p, rbd_trash_image_info_t *entries,
+ size_t *num_entries) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_list_enter,
+ io_ctx.get_pool_name().c_str(), io_ctx.get_id());
+
+ vector<librbd::trash_image_info_t> cpp_entries;
+ int r = librbd::trash_list(io_ctx, cpp_entries);
+ if (r < 0) {
+ tracepoint(librbd, trash_list_exit, r, *num_entries);
+ return r;
+ }
+
+ if (*num_entries < cpp_entries.size()) {
+ *num_entries = cpp_entries.size();
+ tracepoint(librbd, trash_list_exit, -ERANGE, *num_entries);
+ return -ERANGE;
+ }
+
+ int i=0;
+ for (const auto &entry : cpp_entries) {
+ trash_image_info_cpp_to_c(entry, &entries[i++]);
+ }
+ *num_entries = cpp_entries.size();
+
+ return *num_entries;
+}
+
+extern "C" void rbd_trash_list_cleanup(rbd_trash_image_info_t *entries,
+ size_t num_entries) {
+ for (size_t i=0; i < num_entries; i++) {
+ rbd_trash_get_cleanup(&entries[i]);
+ }
+}
+
+extern "C" int rbd_trash_remove(rados_ioctx_t p, const char *image_id,
+ bool force) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), image_id, force);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::trash_remove(io_ctx, image_id, force, prog_ctx);
+ tracepoint(librbd, trash_remove_exit, r);
+ return r;
+}
+
+extern "C" int rbd_trash_remove_with_progress(rados_ioctx_t p,
+ const char *image_id,
+ bool force,
+ librbd_progress_fn_t cb,
+ void *cbdata) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), image_id, force);
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ int r = librbd::trash_remove(io_ctx, image_id, force, prog_ctx);
+ tracepoint(librbd, trash_remove_exit, r);
+ return r;
+}
+
+extern "C" int rbd_trash_restore(rados_ioctx_t p, const char *id,
+ const char *name) {
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ tracepoint(librbd, trash_undelete_enter, io_ctx.get_pool_name().c_str(),
+ io_ctx.get_id(), id, name);
+ int r = librbd::trash_restore(io_ctx, id, name);
+ tracepoint(librbd, trash_undelete_exit, r);
+ return r;
+}
+
+extern "C" int rbd_copy(rbd_image_t image, rados_ioctx_t dest_p,
+ const char *destname)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librados::IoCtx dest_io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx);
+ tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname);
+ librbd::ImageOptions opts;
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0);
+ tracepoint(librbd, copy_exit, r);
+ return r;
+}
+
+extern "C" int rbd_copy2(rbd_image_t srcp, rbd_image_t destp)
+{
+ librbd::ImageCtx *src = (librbd::ImageCtx *)srcp;
+ librbd::ImageCtx *dest = (librbd::ImageCtx *)destp;
+ tracepoint(librbd, copy2_enter, src, src->name.c_str(), src->snap_name.c_str(), src->read_only, dest, dest->name.c_str(), dest->snap_name.c_str(), dest->read_only);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(src, dest, prog_ctx, 0);
+ tracepoint(librbd, copy2_exit, r);
+ return r;
+}
+
+extern "C" int rbd_copy3(rbd_image_t image, rados_ioctx_t dest_p,
+ const char *destname, rbd_image_options_t c_opts)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librados::IoCtx dest_io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx);
+ tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, c_opts);
+ librbd::ImageOptions c_opts_(c_opts);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(ictx, dest_io_ctx, destname, c_opts_, prog_ctx, 0);
+ tracepoint(librbd, copy3_exit, r);
+ return r;
+}
+
+extern "C" int rbd_copy4(rbd_image_t image, rados_ioctx_t dest_p,
+ const char *destname, rbd_image_options_t c_opts, size_t sparse_size)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librados::IoCtx dest_io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx);
+ tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, c_opts, sparse_size);
+ librbd::ImageOptions c_opts_(c_opts);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::copy(ictx, dest_io_ctx, destname, c_opts_, prog_ctx, sparse_size);
+ tracepoint(librbd, copy4_exit, r);
+ return r;
+}
+
+extern "C" int rbd_copy_with_progress(rbd_image_t image, rados_ioctx_t dest_p,
+ const char *destname,
+ librbd_progress_fn_t fn, void *data)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librados::IoCtx dest_io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx);
+ tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname);
+ librbd::ImageOptions opts;
+ librbd::CProgressContext prog_ctx(fn, data);
+ int ret = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0);
+ tracepoint(librbd, copy_exit, ret);
+ return ret;
+}
+
+extern "C" int rbd_copy_with_progress2(rbd_image_t srcp, rbd_image_t destp,
+ librbd_progress_fn_t fn, void *data)
+{
+ librbd::ImageCtx *src = (librbd::ImageCtx *)srcp;
+ librbd::ImageCtx *dest = (librbd::ImageCtx *)destp;
+ tracepoint(librbd, copy2_enter, src, src->name.c_str(), src->snap_name.c_str(), src->read_only, dest, dest->name.c_str(), dest->snap_name.c_str(), dest->read_only);
+ librbd::CProgressContext prog_ctx(fn, data);
+ int ret = librbd::copy(src, dest, prog_ctx, 0);
+ tracepoint(librbd, copy2_exit, ret);
+ return ret;
+}
+
+extern "C" int rbd_copy_with_progress3(rbd_image_t image, rados_ioctx_t dest_p,
+ const char *destname,
+ rbd_image_options_t dest_opts,
+ librbd_progress_fn_t fn, void *data)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librados::IoCtx dest_io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx);
+ tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, dest_opts);
+ librbd::ImageOptions dest_opts_(dest_opts);
+ librbd::CProgressContext prog_ctx(fn, data);
+ int ret = librbd::copy(ictx, dest_io_ctx, destname, dest_opts_, prog_ctx, 0);
+ tracepoint(librbd, copy3_exit, ret);
+ return ret;
+}
+
+extern "C" int rbd_copy_with_progress4(rbd_image_t image, rados_ioctx_t dest_p,
+ const char *destname,
+ rbd_image_options_t dest_opts,
+ librbd_progress_fn_t fn, void *data, size_t sparse_size)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librados::IoCtx dest_io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx);
+ tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, dest_opts, sparse_size);
+ librbd::ImageOptions dest_opts_(dest_opts);
+ librbd::CProgressContext prog_ctx(fn, data);
+ int ret = librbd::copy(ictx, dest_io_ctx, destname, dest_opts_, prog_ctx, sparse_size);
+ tracepoint(librbd, copy4_exit, ret);
+ return ret;
+}
+
+
+extern "C" int rbd_flatten(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
+ librbd::NoOpProgressContext prog_ctx;
+ int r = ictx->operations->flatten(prog_ctx);
+ tracepoint(librbd, flatten_exit, r);
+ return r;
+}
+
+extern "C" int rbd_flatten_with_progress(rbd_image_t image,
+ librbd_progress_fn_t cb, void *cbdata)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ int r = ictx->operations->flatten(prog_ctx);
+ tracepoint(librbd, flatten_exit, r);
+ return r;
+}
+
+extern "C" int rbd_rename(rados_ioctx_t src_p, const char *srcname,
+ const char *destname)
+{
+ librados::IoCtx src_io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(src_p, src_io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(src_io_ctx));
+ tracepoint(librbd, rename_enter, src_io_ctx.get_pool_name().c_str(), src_io_ctx.get_id(), srcname, destname);
+ int r = librbd::rename(src_io_ctx, srcname, destname);
+ tracepoint(librbd, rename_exit, r);
+ return r;
+}
+
+extern "C" int rbd_open(rados_ioctx_t p, const char *name, rbd_image_t *image,
+ const char *snap_name)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx,
+ false);
+ tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+
+ int r = ictx->state->open(false);
+ if (r >= 0) {
+ *image = (rbd_image_t)ictx;
+ }
+ tracepoint(librbd, open_image_exit, r);
+ return r;
+}
+
+extern "C" int rbd_open_by_id(rados_ioctx_t p, const char *id,
+ rbd_image_t *image, const char *snap_name)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx,
+ false);
+ tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(),
+ ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+
+ int r = ictx->state->open(false);
+ if (r < 0) {
+ delete ictx;
+ } else {
+ *image = (rbd_image_t)ictx;
+ }
+ tracepoint(librbd, open_image_exit, r);
+ return r;
+}
+
+extern "C" int rbd_aio_open(rados_ioctx_t p, const char *name,
+ rbd_image_t *image, const char *snap_name,
+ rbd_completion_t c)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx,
+ false);
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc);
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp), image));
+ tracepoint(librbd, aio_open_image_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_open_by_id(rados_ioctx_t p, const char *id,
+ rbd_image_t *image, const char *snap_name,
+ rbd_completion_t c)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx,
+ false);
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(),
+ ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only,
+ comp->pc);
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp), image));
+ tracepoint(librbd, aio_open_image_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_open_read_only(rados_ioctx_t p, const char *name,
+ rbd_image_t *image, const char *snap_name)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx,
+ true);
+ tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+
+ int r = ictx->state->open(false);
+ if (r >= 0) {
+ *image = (rbd_image_t)ictx;
+ }
+ tracepoint(librbd, open_image_exit, r);
+ return r;
+}
+
+extern "C" int rbd_open_by_id_read_only(rados_ioctx_t p, const char *id,
+ rbd_image_t *image, const char *snap_name)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx,
+ true);
+ tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(),
+ ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+
+ int r = ictx->state->open(false);
+ if (r < 0) {
+ delete ictx;
+ } else {
+ *image = (rbd_image_t)ictx;
+ }
+ tracepoint(librbd, open_image_exit, r);
+ return r;
+}
+
+extern "C" int rbd_aio_open_read_only(rados_ioctx_t p, const char *name,
+ rbd_image_t *image, const char *snap_name,
+ rbd_completion_t c)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx,
+ true);
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc);
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp),
+ image));
+ tracepoint(librbd, aio_open_image_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_open_by_id_read_only(rados_ioctx_t p, const char *id,
+ rbd_image_t *image,
+ const char *snap_name,
+ rbd_completion_t c)
+{
+ librados::IoCtx io_ctx;
+ librados::IoCtx::from_rados_ioctx_t(p, io_ctx);
+ TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx));
+ librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx,
+ true);
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(),
+ ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc);
+ ictx->state->open(false, new C_OpenComplete(ictx, get_aio_completion(comp),
+ image));
+ tracepoint(librbd, aio_open_image_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_close(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str());
+
+ int r = ictx->state->close();
+
+ tracepoint(librbd, close_image_exit, r);
+ return r;
+}
+
+extern "C" int rbd_aio_close(rbd_image_t image, rbd_completion_t c)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), comp->pc);
+ ictx->state->close(new C_AioCompletion(ictx, librbd::io::AIO_TYPE_CLOSE,
+ get_aio_completion(comp)));
+ tracepoint(librbd, aio_close_image_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_resize(rbd_image_t image, uint64_t size)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = ictx->operations->resize(size, true, prog_ctx);
+ tracepoint(librbd, resize_exit, r);
+ return r;
+}
+
+extern "C" int rbd_resize2(rbd_image_t image, uint64_t size, bool allow_shrink,
+ librbd_progress_fn_t cb, void *cbdata)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size);
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ int r = ictx->operations->resize(size, allow_shrink, prog_ctx);
+ tracepoint(librbd, resize_exit, r);
+ return r;
+}
+
+extern "C" int rbd_resize_with_progress(rbd_image_t image, uint64_t size,
+ librbd_progress_fn_t cb, void *cbdata)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size);
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ int r = ictx->operations->resize(size, true, prog_ctx);
+ tracepoint(librbd, resize_exit, r);
+ return r;
+}
+
+extern "C" int rbd_stat(rbd_image_t image, rbd_image_info_t *info,
+ size_t infosize)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, stat_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::info(ictx, *info, infosize);
+ tracepoint(librbd, stat_exit, r, info);
+ return r;
+}
+
+extern "C" int rbd_get_old_format(rbd_image_t image, uint8_t *old)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_old_format_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_old_format(ictx, old);
+ tracepoint(librbd, get_old_format_exit, r, *old);
+ return r;
+}
+
+extern "C" int rbd_get_size(rbd_image_t image, uint64_t *size)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_size_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_size(ictx, size);
+ tracepoint(librbd, get_size_exit, r, *size);
+ return r;
+}
+
+extern "C" int rbd_get_features(rbd_image_t image, uint64_t *features)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_features_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_features(ictx, features);
+ tracepoint(librbd, get_features_exit, r, *features);
+ return r;
+}
+
+extern "C" int rbd_update_features(rbd_image_t image, uint64_t features,
+ uint8_t enabled)
+{
+ librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image);
+ bool features_enabled = enabled != 0;
+ tracepoint(librbd, update_features_enter, ictx, features, features_enabled);
+ int r = ictx->operations->update_features(features, features_enabled);
+ tracepoint(librbd, update_features_exit, r);
+ return r;
+}
+
+extern "C" int rbd_get_stripe_unit(rbd_image_t image, uint64_t *stripe_unit)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_stripe_unit_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ *stripe_unit = ictx->get_stripe_unit();
+ tracepoint(librbd, get_stripe_unit_exit, 0, *stripe_unit);
+ return 0;
+}
+
+extern "C" int rbd_get_stripe_count(rbd_image_t image, uint64_t *stripe_count)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_stripe_count_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ *stripe_count = ictx->get_stripe_count();
+ tracepoint(librbd, get_stripe_count_exit, 0, *stripe_count);
+ return 0;
+}
+
+extern "C" int rbd_get_create_timestamp(rbd_image_t image,
+ struct timespec *timestamp)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_create_timestamp_enter, ictx, ictx->name.c_str(),
+ ictx->read_only);
+ utime_t time = ictx->get_create_timestamp();
+ time.to_timespec(timestamp);
+ tracepoint(librbd, get_create_timestamp_exit, 0, timestamp);
+ return 0;
+}
+
+extern "C" int rbd_get_overlap(rbd_image_t image, uint64_t *overlap)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_overlap_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::get_overlap(ictx, overlap);
+ tracepoint(librbd, get_overlap_exit, r, *overlap);
+ return r;
+}
+
+extern "C" int rbd_get_id(rbd_image_t image, char *id, size_t id_len)
+{
+ librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image);
+ if (ictx->old_format) {
+ return -EINVAL;
+ }
+ if (ictx->id.size() >= id_len) {
+ return -ERANGE;
+ }
+
+ strncpy(id, ictx->id.c_str(), id_len - 1);
+ id[id_len - 1] = '\0';
+ return 0;
+}
+
+extern "C" int rbd_get_block_name_prefix(rbd_image_t image, char *prefix,
+ size_t prefix_len)
+{
+ librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image);
+ if (ictx->object_prefix.size() >= prefix_len) {
+ return -ERANGE;
+ }
+
+ strncpy(prefix, ictx->object_prefix.c_str(), prefix_len - 1);
+ prefix[prefix_len - 1] = '\0';
+ return 0;
+}
+
+extern "C" int64_t rbd_get_data_pool_id(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image);
+ return ictx->data_ctx.get_id();
+}
+
+extern "C" int rbd_get_parent_info(rbd_image_t image,
+ char *parent_pool_name, size_t ppool_namelen,
+ char *parent_name, size_t pnamelen,
+ char *parent_snap_name, size_t psnap_namelen)
+{
+ return rbd_get_parent_info2(image, parent_pool_name, ppool_namelen,
+ parent_name, pnamelen, nullptr, 0,
+ parent_snap_name, psnap_namelen);
+}
+
+extern "C" int rbd_get_parent_info2(rbd_image_t image,
+ char *parent_pool_name,
+ size_t ppool_namelen,
+ char *parent_name, size_t pnamelen,
+ char *parent_id, size_t pidlen,
+ char *parent_snap_name,
+ size_t psnap_namelen)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only);
+ string p_pool_name, p_name, p_id, p_snap_name;
+
+ int r = librbd::get_parent_info(ictx, &p_pool_name, &p_name, &p_id,
+ &p_snap_name);
+ if (r < 0) {
+ tracepoint(librbd, get_parent_info_exit, r, NULL, NULL, NULL, NULL);
+ return r;
+ }
+
+ if (parent_pool_name) {
+ if (p_pool_name.length() + 1 > ppool_namelen) {
+ tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL);
+ return -ERANGE;
+ }
+
+ strcpy(parent_pool_name, p_pool_name.c_str());
+ }
+ if (parent_name) {
+ if (p_name.length() + 1 > pnamelen) {
+ tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL);
+ return -ERANGE;
+ }
+
+ strcpy(parent_name, p_name.c_str());
+ }
+ if (parent_id) {
+ if (p_id.length() + 1 > pidlen) {
+ tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL);
+ return -ERANGE;
+ }
+
+ strcpy(parent_id, p_id.c_str());
+ }
+ if (parent_snap_name) {
+ if (p_snap_name.length() + 1 > psnap_namelen) {
+ tracepoint(librbd, get_parent_info_exit, -ERANGE, NULL, NULL, NULL, NULL);
+ return -ERANGE;
+ }
+
+ strcpy(parent_snap_name, p_snap_name.c_str());
+ }
+
+ tracepoint(librbd, get_parent_info_exit, 0, parent_pool_name, parent_name,
+ parent_id, parent_snap_name);
+ return 0;
+}
+
+extern "C" int rbd_get_flags(rbd_image_t image, uint64_t *flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, get_flags_enter, ictx);
+ int r = librbd::get_flags(ictx, flags);
+ tracepoint(librbd, get_flags_exit, ictx, r, *flags);
+ return r;
+}
+
+extern "C" int rbd_set_image_notification(rbd_image_t image, int fd, int type)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, set_image_notification_enter, ictx, fd, type);
+ int r = librbd::set_image_notification(ictx, fd, type);
+ tracepoint(librbd, set_image_notification_exit, ictx, r);
+ return r;
+}
+
+extern "C" int rbd_is_exclusive_lock_owner(rbd_image_t image, int *is_owner)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, is_exclusive_lock_owner_enter, ictx);
+ bool owner;
+ int r = librbd::is_exclusive_lock_owner(ictx, &owner);
+ *is_owner = owner ? 1 : 0;
+ tracepoint(librbd, is_exclusive_lock_owner_exit, ictx, r, *is_owner);
+ return r;
+}
+
+extern "C" int rbd_lock_acquire(rbd_image_t image, rbd_lock_mode_t lock_mode)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, lock_acquire_enter, ictx, lock_mode);
+ int r = librbd::lock_acquire(ictx, lock_mode);
+ tracepoint(librbd, lock_acquire_exit, ictx, r);
+ return r;
+}
+
+extern "C" int rbd_lock_release(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, lock_release_enter, ictx);
+ int r = librbd::lock_release(ictx);
+ tracepoint(librbd, lock_release_exit, ictx, r);
+ return r;
+}
+
+extern "C" int rbd_lock_get_owners(rbd_image_t image,
+ rbd_lock_mode_t *lock_mode,
+ char **lock_owners,
+ size_t *max_lock_owners)
+{
+ librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image);
+ tracepoint(librbd, lock_get_owners_enter, ictx);
+ std::list<std::string> lock_owner_list;
+ int r = librbd::lock_get_owners(ictx, lock_mode, &lock_owner_list);
+ if (r >= 0) {
+ if (*max_lock_owners >= lock_owner_list.size()) {
+ *max_lock_owners = 0;
+ for (auto &lock_owner : lock_owner_list) {
+ lock_owners[(*max_lock_owners)++] = strdup(lock_owner.c_str());
+ }
+ } else {
+ *max_lock_owners = lock_owner_list.size();
+ r = -ERANGE;
+ }
+ }
+ tracepoint(librbd, lock_get_owners_exit, ictx, r);
+ return r;
+}
+
+extern "C" void rbd_lock_get_owners_cleanup(char **lock_owners,
+ size_t lock_owner_count)
+{
+ for (size_t i = 0; i < lock_owner_count; ++i) {
+ free(lock_owners[i]);
+ }
+}
+
+extern "C" int rbd_lock_break(rbd_image_t image, rbd_lock_mode_t lock_mode,
+ const char *lock_owner)
+{
+ librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image);
+ tracepoint(librbd, lock_break_enter, ictx, lock_mode, lock_owner);
+ int r = librbd::lock_break(ictx, lock_mode, lock_owner);
+ tracepoint(librbd, lock_break_exit, ictx, r);
+ return r;
+}
+
+extern "C" int rbd_rebuild_object_map(rbd_image_t image,
+ librbd_progress_fn_t cb, void *cbdata)
+{
+ librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image);
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ return ictx->operations->rebuild_object_map(prog_ctx);
+}
+
+/* snapshots */
+extern "C" int rbd_snap_create(rbd_image_t image, const char *snap_name)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(),
+ snap_name);
+ tracepoint(librbd, snap_create_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_rename(rbd_image_t image, const char *srcname, const char *dstname)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_rename_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, srcname, dstname);
+ int r = ictx->operations->snap_rename(srcname, dstname);
+ tracepoint(librbd, snap_rename_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_remove(rbd_image_t image, const char *snap_name)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_remove_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = librbd::snap_remove(ictx, snap_name, 0, prog_ctx);
+ tracepoint(librbd, snap_remove_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_remove2(rbd_image_t image, const char *snap_name, uint32_t flags,
+ librbd_progress_fn_t cb, void *cbdata)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_remove2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name, flags);
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ int r = librbd::snap_remove(ictx, snap_name, flags, prog_ctx);
+ tracepoint(librbd, snap_remove_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_rollback(rbd_image_t image, const char *snap_name)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ librbd::NoOpProgressContext prog_ctx;
+ int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx);
+ tracepoint(librbd, snap_rollback_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_rollback_with_progress(rbd_image_t image,
+ const char *snap_name,
+ librbd_progress_fn_t cb,
+ void *cbdata)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ librbd::CProgressContext prog_ctx(cb, cbdata);
+ int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx);
+ tracepoint(librbd, snap_rollback_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_list(rbd_image_t image, rbd_snap_info_t *snaps,
+ int *max_snaps)
+{
+ vector<librbd::snap_info_t> cpp_snaps;
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_list_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snaps);
+
+ if (!max_snaps) {
+ tracepoint(librbd, snap_list_exit, -EINVAL, 0);
+ return -EINVAL;
+ }
+
+ int r = librbd::snap_list(ictx, cpp_snaps);
+ if (r == -ENOENT) {
+ tracepoint(librbd, snap_list_exit, 0, *max_snaps);
+ return 0;
+ }
+ if (r < 0) {
+ tracepoint(librbd, snap_list_exit, r, *max_snaps);
+ return r;
+ }
+ if (*max_snaps < (int)cpp_snaps.size() + 1) {
+ *max_snaps = (int)cpp_snaps.size() + 1;
+ tracepoint(librbd, snap_list_exit, -ERANGE, *max_snaps);
+ return -ERANGE;
+ }
+
+ int i;
+
+ for (i = 0; i < (int)cpp_snaps.size(); i++) {
+ snaps[i].id = cpp_snaps[i].id;
+ snaps[i].size = cpp_snaps[i].size;
+ snaps[i].name = strdup(cpp_snaps[i].name.c_str());
+ if (!snaps[i].name) {
+ for (int j = 0; j < i; j++)
+ free((void *)snaps[j].name);
+ tracepoint(librbd, snap_list_exit, -ENOMEM, *max_snaps);
+ return -ENOMEM;
+ }
+ tracepoint(librbd, snap_list_entry, snaps[i].id, snaps[i].size, snaps[i].name);
+ }
+ snaps[i].id = 0;
+ snaps[i].size = 0;
+ snaps[i].name = NULL;
+
+ r = (int)cpp_snaps.size();
+ tracepoint(librbd, snap_list_exit, r, *max_snaps);
+ return r;
+}
+
+extern "C" void rbd_snap_list_end(rbd_snap_info_t *snaps)
+{
+ tracepoint(librbd, snap_list_end_enter, snaps);
+ while (snaps->name) {
+ free((void *)snaps->name);
+ snaps++;
+ }
+ tracepoint(librbd, snap_list_end_exit);
+}
+
+extern "C" int rbd_snap_protect(rbd_image_t image, const char *snap_name)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_protect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name);
+ tracepoint(librbd, snap_protect_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_unprotect(rbd_image_t image, const char *snap_name)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_unprotect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), snap_name);
+ tracepoint(librbd, snap_unprotect_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_is_protected(rbd_image_t image, const char *snap_name,
+ int *is_protected)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_is_protected_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ bool protected_snap;
+ int r = librbd::snap_is_protected(ictx, snap_name, &protected_snap);
+ if (r < 0) {
+ tracepoint(librbd, snap_is_protected_exit, r, *is_protected ? 1 : 0);
+ return r;
+ }
+ *is_protected = protected_snap ? 1 : 0;
+ tracepoint(librbd, snap_is_protected_exit, 0, *is_protected ? 1 : 0);
+ return 0;
+}
+
+extern "C" int rbd_snap_get_limit(rbd_image_t image, uint64_t *limit)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_get_limit_enter, ictx, ictx->name.c_str());
+ int r = librbd::snap_get_limit(ictx, limit);
+ tracepoint(librbd, snap_get_limit_exit, r, *limit);
+ return r;
+}
+
+extern "C" int rbd_snap_get_timestamp(rbd_image_t image, uint64_t snap_id, struct timespec *timestamp)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_get_timestamp_enter, ictx, ictx->name.c_str());
+ int r = librbd::snap_get_timestamp(ictx, snap_id, timestamp);
+ tracepoint(librbd, snap_get_timestamp_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_set_limit(rbd_image_t image, uint64_t limit)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_set_limit_enter, ictx, ictx->name.c_str(), limit);
+ int r = librbd::snap_set_limit(ictx, limit);
+ tracepoint(librbd, snap_set_limit_exit, r);
+ return r;
+}
+
+extern "C" int rbd_snap_set(rbd_image_t image, const char *snap_name)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, snap_set_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name);
+ int r = librbd::snap_set(ictx, cls::rbd::UserSnapshotNamespace(), snap_name);
+ tracepoint(librbd, snap_set_exit, r);
+ return r;
+}
+
+extern "C" ssize_t rbd_list_children(rbd_image_t image, char *pools,
+ size_t *pools_len, char *images,
+ size_t *images_len)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ set<pair<string, string> > image_set;
+
+ int r = librbd::list_children(ictx, image_set);
+ if (r < 0) {
+ tracepoint(librbd, list_children_exit, r);
+ return r;
+ }
+
+ size_t pools_total = 0;
+ size_t images_total = 0;
+ for (set<pair<string, string> >::const_iterator it = image_set.begin();
+ it != image_set.end(); ++it) {
+ pools_total += it->first.length() + 1;
+ images_total += it->second.length() + 1;
+ }
+
+ bool too_short = false;
+ if (pools_total > *pools_len)
+ too_short = true;
+ if (images_total > *images_len)
+ too_short = true;
+ *pools_len = pools_total;
+ *images_len = images_total;
+ if (too_short) {
+ tracepoint(librbd, list_children_exit, -ERANGE);
+ return -ERANGE;
+ }
+
+ char *pools_p = pools;
+ char *images_p = images;
+ for (set<pair<string, string> >::const_iterator it = image_set.begin();
+ it != image_set.end(); ++it) {
+ const char* pool = it->first.c_str();
+ strcpy(pools_p, pool);
+ pools_p += it->first.length() + 1;
+ const char* image = it->second.c_str();
+ strcpy(images_p, image);
+ images_p += it->second.length() + 1;
+ tracepoint(librbd, list_children_entry, pool, image);
+ }
+
+ ssize_t ret = image_set.size();
+ tracepoint(librbd, list_children_exit, ret);
+ return ret;
+}
+
+extern "C" ssize_t rbd_list_lockers(rbd_image_t image, int *exclusive,
+ char *tag, size_t *tag_len,
+ char *clients, size_t *clients_len,
+ char *cookies, size_t *cookies_len,
+ char *addrs, size_t *addrs_len)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, list_lockers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ std::list<librbd::locker_t> lockers;
+ bool exclusive_bool;
+ string tag_str;
+
+ int r = list_lockers(ictx, &lockers, &exclusive_bool, &tag_str);
+ if (r < 0) {
+ tracepoint(librbd, list_lockers_exit, r);
+ return r;
+ }
+
+ ldout(ictx->cct, 20) << "list_lockers r = " << r << " lockers.size() = " << lockers.size() << dendl;
+
+ *exclusive = (int)exclusive_bool;
+ size_t clients_total = 0;
+ size_t cookies_total = 0;
+ size_t addrs_total = 0;
+ for (list<librbd::locker_t>::const_iterator it = lockers.begin();
+ it != lockers.end(); ++it) {
+ clients_total += it->client.length() + 1;
+ cookies_total += it->cookie.length() + 1;
+ addrs_total += it->address.length() + 1;
+ }
+
+ bool too_short = ((clients_total > *clients_len) ||
+ (cookies_total > *cookies_len) ||
+ (addrs_total > *addrs_len) ||
+ (tag_str.length() + 1 > *tag_len));
+ *clients_len = clients_total;
+ *cookies_len = cookies_total;
+ *addrs_len = addrs_total;
+ *tag_len = tag_str.length() + 1;
+ if (too_short) {
+ tracepoint(librbd, list_lockers_exit, -ERANGE);
+ return -ERANGE;
+ }
+
+ strcpy(tag, tag_str.c_str());
+ char *clients_p = clients;
+ char *cookies_p = cookies;
+ char *addrs_p = addrs;
+ for (list<librbd::locker_t>::const_iterator it = lockers.begin();
+ it != lockers.end(); ++it) {
+ const char* client = it->client.c_str();
+ strcpy(clients_p, client);
+ clients_p += it->client.length() + 1;
+ const char* cookie = it->cookie.c_str();
+ strcpy(cookies_p, cookie);
+ cookies_p += it->cookie.length() + 1;
+ const char* address = it->address.c_str();
+ strcpy(addrs_p, address);
+ addrs_p += it->address.length() + 1;
+ tracepoint(librbd, list_lockers_entry, client, cookie, address);
+ }
+
+ ssize_t ret = lockers.size();
+ tracepoint(librbd, list_lockers_exit, ret);
+ return ret;
+}
+
+extern "C" int rbd_lock_exclusive(rbd_image_t image, const char *cookie)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, lock_exclusive_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie);
+ int r = librbd::lock(ictx, true, cookie ? cookie : "", "");
+ tracepoint(librbd, lock_exclusive_exit, r);
+ return r;
+}
+
+extern "C" int rbd_lock_shared(rbd_image_t image, const char *cookie,
+ const char *tag)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, lock_shared_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie, tag);
+ int r = librbd::lock(ictx, false, cookie ? cookie : "", tag ? tag : "");
+ tracepoint(librbd, lock_shared_exit, r);
+ return r;
+}
+
+extern "C" int rbd_unlock(rbd_image_t image, const char *cookie)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, unlock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie);
+ int r = librbd::unlock(ictx, cookie ? cookie : "");
+ tracepoint(librbd, unlock_exit, r);
+ return r;
+}
+
+extern "C" int rbd_break_lock(rbd_image_t image, const char *client,
+ const char *cookie)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, break_lock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, client, cookie);
+ int r = librbd::break_lock(ictx, client, cookie ? cookie : "");
+ tracepoint(librbd, break_lock_exit, r);
+ return r;
+}
+
+/* I/O */
+extern "C" ssize_t rbd_read(rbd_image_t image, uint64_t ofs, size_t len,
+ char *buf)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ int r = ictx->io_work_queue->read(ofs, len, librbd::io::ReadResult{buf, len},
+ 0);
+ tracepoint(librbd, read_exit, r);
+ return r;
+}
+
+extern "C" ssize_t rbd_read2(rbd_image_t image, uint64_t ofs, size_t len,
+ char *buf, int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, read2_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, ofs, len, op_flags);
+ int r = ictx->io_work_queue->read(ofs, len, librbd::io::ReadResult{buf, len},
+ op_flags);
+ tracepoint(librbd, read_exit, r);
+ return r;
+}
+
+
+extern "C" int64_t rbd_read_iterate(rbd_image_t image, uint64_t ofs, size_t len,
+ int (*cb)(uint64_t, size_t, const char *, void *),
+ void *arg)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, read_iterate_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg);
+ tracepoint(librbd, read_iterate_exit, r);
+ return r;
+}
+
+extern "C" int rbd_read_iterate2(rbd_image_t image, uint64_t ofs, uint64_t len,
+ int (*cb)(uint64_t, size_t, const char *, void *),
+ void *arg)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, read_iterate2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg);
+ if (r > 0)
+ r = 0;
+ tracepoint(librbd, read_iterate2_exit, r);
+ return (int)r;
+}
+
+extern "C" int rbd_diff_iterate(rbd_image_t image,
+ const char *fromsnapname,
+ uint64_t ofs, uint64_t len,
+ int (*cb)(uint64_t, size_t, int, void *),
+ void *arg)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len,
+ true, false);
+ int r = librbd::api::DiffIterate<>::diff_iterate(ictx,
+ cls::rbd::UserSnapshotNamespace(),
+ fromsnapname, ofs, len,
+ true, false, cb, arg);
+ tracepoint(librbd, diff_iterate_exit, r);
+ return r;
+}
+
+extern "C" int rbd_diff_iterate2(rbd_image_t image, const char *fromsnapname,
+ uint64_t ofs, uint64_t len,
+ uint8_t include_parent, uint8_t whole_object,
+ int (*cb)(uint64_t, size_t, int, void *),
+ void *arg)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len,
+ include_parent != 0, whole_object != 0);
+ int r = librbd::api::DiffIterate<>::diff_iterate(ictx,
+ cls::rbd::UserSnapshotNamespace(),
+ fromsnapname, ofs, len,
+ include_parent, whole_object,
+ cb, arg);
+ tracepoint(librbd, diff_iterate_exit, r);
+ return r;
+}
+
+extern "C" ssize_t rbd_write(rbd_image_t image, uint64_t ofs, size_t len,
+ const char *buf)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len, buf);
+
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, len));
+ int r = ictx->io_work_queue->write(ofs, len, std::move(bl), 0);
+ tracepoint(librbd, write_exit, r);
+ return r;
+}
+
+extern "C" ssize_t rbd_write2(rbd_image_t image, uint64_t ofs, size_t len,
+ const char *buf, int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, write2_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, ofs, len, buf, op_flags);
+
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, len));
+ int r = ictx->io_work_queue->write(ofs, len, std::move(bl), op_flags);
+ tracepoint(librbd, write_exit, r);
+ return r;
+}
+
+
+extern "C" int rbd_discard(rbd_image_t image, uint64_t ofs, uint64_t len)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len);
+ int r = ictx->io_work_queue->discard(ofs, len, ictx->skip_partial_discard);
+ tracepoint(librbd, discard_exit, r);
+ return r;
+}
+
+extern "C" ssize_t rbd_writesame(rbd_image_t image, uint64_t ofs, size_t len,
+ const char *buf, size_t data_len, int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, ofs, len, data_len <= 0 ? NULL : buf, data_len, op_flags);
+
+ if (data_len <= 0 || len % data_len) {
+ tracepoint(librbd, writesame_exit, -EINVAL);
+ return -EINVAL;
+ }
+
+ if (mem_is_zero(buf, data_len)) {
+ int r = ictx->io_work_queue->discard(ofs, len, false);
+ tracepoint(librbd, writesame_exit, r);
+ return r;
+ }
+
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, data_len));
+ int r = ictx->io_work_queue->writesame(ofs, len, std::move(bl), op_flags);
+ tracepoint(librbd, writesame_exit, r);
+ return r;
+}
+
+extern "C" ssize_t rbd_compare_and_write(rbd_image_t image,
+ uint64_t ofs, size_t len,
+ const char *cmp_buf,
+ const char *buf,
+ uint64_t *mismatch_off,
+ int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, compare_and_write_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, ofs,
+ len, cmp_buf, buf, op_flags);
+
+ bufferlist cmp_bl;
+ cmp_bl.push_back(create_write_raw(ictx, cmp_buf, len));
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, len));
+
+ int r = ictx->io_work_queue->compare_and_write(ofs, len, std::move(cmp_bl),
+ std::move(bl), mismatch_off,
+ op_flags);
+ tracepoint(librbd, compare_and_write_exit, r);
+ return r;
+}
+
+extern "C" int rbd_aio_create_completion(void *cb_arg,
+ rbd_callback_t complete_cb,
+ rbd_completion_t *c)
+{
+ librbd::RBD::AioCompletion *rbd_comp =
+ new librbd::RBD::AioCompletion(cb_arg, complete_cb);
+ *c = (rbd_completion_t) rbd_comp;
+ return 0;
+}
+
+extern "C" int rbd_aio_write(rbd_image_t image, uint64_t off, size_t len,
+ const char *buf, rbd_completion_t c)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, buf, comp->pc);
+
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, len));
+ ictx->io_work_queue->aio_write(get_aio_completion(comp), off, len,
+ std::move(bl), 0);
+ tracepoint(librbd, aio_write_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_write2(rbd_image_t image, uint64_t off, size_t len,
+ const char *buf, rbd_completion_t c, int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, off, len, buf, comp->pc, op_flags);
+
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, len));
+ ictx->io_work_queue->aio_write(get_aio_completion(comp), off, len,
+ std::move(bl), op_flags);
+ tracepoint(librbd, aio_write_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_writev(rbd_image_t image, const struct iovec *iov,
+ int iovcnt, uint64_t off, rbd_completion_t c)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+
+ // convert the scatter list into a bufferlist
+ ssize_t len = 0;
+ bufferlist bl;
+ for (int i = 0; i < iovcnt; ++i) {
+ const struct iovec &io = iov[i];
+ len += io.iov_len;
+ if (len < 0) {
+ break;
+ }
+
+ bl.push_back(create_write_raw(ictx, static_cast<char*>(io.iov_base),
+ io.iov_len));
+ }
+
+ int r = 0;
+ if (iovcnt <= 0 || len < 0) {
+ r = -EINVAL;
+ }
+
+ tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, off, len, NULL,
+ comp->pc);
+ if (r == 0) {
+ ictx->io_work_queue->aio_write(get_aio_completion(comp), off, len,
+ std::move(bl), 0);
+ }
+ tracepoint(librbd, aio_write_exit, r);
+ return r;
+}
+
+extern "C" int rbd_aio_discard(rbd_image_t image, uint64_t off, uint64_t len,
+ rbd_completion_t c)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, comp->pc);
+ ictx->io_work_queue->aio_discard(get_aio_completion(comp), off, len, ictx->skip_partial_discard);
+ tracepoint(librbd, aio_discard_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_read(rbd_image_t image, uint64_t off, size_t len,
+ char *buf, rbd_completion_t c)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, buf, comp->pc);
+ ictx->io_work_queue->aio_read(get_aio_completion(comp), off, len,
+ librbd::io::ReadResult{buf, len}, 0);
+ tracepoint(librbd, aio_read_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_read2(rbd_image_t image, uint64_t off, size_t len,
+ char *buf, rbd_completion_t c, int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, off, len, buf, comp->pc, op_flags);
+ ictx->io_work_queue->aio_read(get_aio_completion(comp), off, len,
+ librbd::io::ReadResult{buf, len},op_flags);
+ tracepoint(librbd, aio_read_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_readv(rbd_image_t image, const struct iovec *iov,
+ int iovcnt, uint64_t off, rbd_completion_t c)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+
+ ssize_t len = 0;
+ for (int i = 0; i < iovcnt; ++i) {
+ len += iov[i].iov_len;
+ if (len < 0) {
+ break;
+ }
+ }
+
+ int r = 0;
+ if (iovcnt == 0 || len < 0) {
+ r = -EINVAL;
+ }
+
+ tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(),
+ ictx->snap_name.c_str(), ictx->read_only, off, len, NULL,
+ comp->pc);
+ if (r == 0) {
+ librbd::io::ReadResult read_result;
+ if (iovcnt == 1) {
+ read_result = librbd::io::ReadResult(
+ static_cast<char *>(iov[0].iov_base), iov[0].iov_len);
+ } else {
+ read_result = librbd::io::ReadResult(iov, iovcnt);
+ }
+ ictx->io_work_queue->aio_read(get_aio_completion(comp), off, len,
+ std::move(read_result), 0);
+ }
+ tracepoint(librbd, aio_read_exit, r);
+ return r;
+}
+
+extern "C" int rbd_flush(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::flush(ictx);
+ tracepoint(librbd, flush_exit, r);
+ return r;
+}
+
+extern "C" int rbd_aio_flush(rbd_image_t image, rbd_completion_t c)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc);
+ ictx->io_work_queue->aio_flush(get_aio_completion(comp));
+ tracepoint(librbd, aio_flush_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_aio_writesame(rbd_image_t image, uint64_t off, size_t len,
+ const char *buf, size_t data_len, rbd_completion_t c,
+ int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, off, len, data_len <= 0 ? NULL : buf, data_len, comp->pc,
+ op_flags);
+
+ if (data_len <= 0 || len % data_len) {
+ tracepoint(librbd, aio_writesame_exit, -EINVAL);
+ return -EINVAL;
+ }
+
+ if (mem_is_zero(buf, data_len)) {
+ ictx->io_work_queue->aio_discard(get_aio_completion(comp), off, len, false);
+ tracepoint(librbd, aio_writesame_exit, 0);
+ return 0;
+ }
+
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, data_len));
+ ictx->io_work_queue->aio_writesame(get_aio_completion(comp), off, len,
+ std::move(bl), op_flags);
+ tracepoint(librbd, aio_writesame_exit, 0);
+ return 0;
+}
+
+extern "C" ssize_t rbd_aio_compare_and_write(rbd_image_t image, uint64_t off,
+ size_t len, const char *cmp_buf,
+ const char *buf, rbd_completion_t c,
+ uint64_t *mismatch_off,
+ int op_flags)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ tracepoint(librbd, aio_compare_and_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(),
+ ictx->read_only, off, len, cmp_buf, buf, comp->pc, op_flags);
+
+ bufferlist cmp_bl;
+ cmp_bl.push_back(create_write_raw(ictx, cmp_buf, len));
+ bufferlist bl;
+ bl.push_back(create_write_raw(ictx, buf, len));
+ ictx->io_work_queue->aio_compare_and_write(get_aio_completion(comp), off, len,
+ std::move(cmp_bl), std::move(bl),
+ mismatch_off, op_flags, false);
+
+ tracepoint(librbd, aio_compare_and_write_exit, 0);
+ return 0;
+}
+
+extern "C" int rbd_invalidate_cache(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, invalidate_cache_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only);
+ int r = librbd::invalidate_cache(ictx);
+ tracepoint(librbd, invalidate_cache_exit, r);
+ return r;
+}
+
+extern "C" int rbd_poll_io_events(rbd_image_t image, rbd_completion_t *comps, int numcomp)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::io::AioCompletion *cs[numcomp];
+ tracepoint(librbd, poll_io_events_enter, ictx, numcomp);
+ int r = librbd::poll_io_events(ictx, cs, numcomp);
+ tracepoint(librbd, poll_io_events_exit, r);
+ if (r > 0) {
+ for (int i = 0; i < r; ++i)
+ comps[i] = cs[i]->rbd_comp;
+ }
+ return r;
+}
+
+extern "C" int rbd_metadata_get(rbd_image_t image, const char *key, char *value, size_t *vallen)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ string val_s;
+ tracepoint(librbd, metadata_get_enter, ictx, key);
+ int r = librbd::metadata_get(ictx, key, &val_s);
+ if (r < 0) {
+ tracepoint(librbd, metadata_get_exit, r, key, NULL);
+ return r;
+ }
+ if (*vallen < val_s.size() + 1) {
+ r = -ERANGE;
+ *vallen = val_s.size() + 1;
+ tracepoint(librbd, metadata_get_exit, r, key, NULL);
+ } else {
+ strncpy(value, val_s.c_str(), val_s.size() + 1);
+ tracepoint(librbd, metadata_get_exit, r, key, value);
+ }
+ return r;
+}
+
+extern "C" int rbd_metadata_set(rbd_image_t image, const char *key, const char *value)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, metadata_set_enter, ictx, key, value);
+ int r = ictx->operations->metadata_set(key, value);
+ tracepoint(librbd, metadata_set_exit, r);
+ return r;
+}
+
+extern "C" int rbd_metadata_remove(rbd_image_t image, const char *key)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, metadata_remove_enter, ictx, key);
+ int r = ictx->operations->metadata_remove(key);
+ tracepoint(librbd, metadata_remove_exit, r);
+ return r;
+}
+
+extern "C" int rbd_metadata_list(rbd_image_t image, const char *start, uint64_t max,
+ char *key, size_t *key_len, char *value, size_t *val_len)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ tracepoint(librbd, metadata_list_enter, ictx);
+ map<string, bufferlist> pairs;
+ int r = librbd::metadata_list(ictx, start, max, &pairs);
+ size_t key_total_len = 0, val_total_len = 0;
+ bool too_short = false;
+ for (map<string, bufferlist>::iterator it = pairs.begin();
+ it != pairs.end(); ++it) {
+ key_total_len += it->first.size() + 1;
+ val_total_len += it->second.length() + 1;
+ }
+ if (*key_len < key_total_len || *val_len < val_total_len)
+ too_short = true;
+ *key_len = key_total_len;
+ *val_len = val_total_len;
+ if (too_short) {
+ tracepoint(librbd, metadata_list_exit, -ERANGE);
+ return -ERANGE;
+ }
+
+ char *key_p = key, *value_p = value;
+
+ for (map<string, bufferlist>::iterator it = pairs.begin();
+ it != pairs.end(); ++it) {
+ strncpy(key_p, it->first.c_str(), it->first.size() + 1);
+ key_p += it->first.size() + 1;
+ strncpy(value_p, it->second.c_str(), it->second.length());
+ value_p += it->second.length();
+ *value_p = '\0';
+ value_p++;
+ tracepoint(librbd, metadata_list_entry, it->first.c_str(), it->second.c_str());
+ }
+ tracepoint(librbd, metadata_list_exit, r);
+ return r;
+}
+
+extern "C" int rbd_mirror_image_enable(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ return librbd::api::Mirror<>::image_enable(ictx, false);
+}
+
+extern "C" int rbd_mirror_image_disable(rbd_image_t image, bool force)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ return librbd::api::Mirror<>::image_disable(ictx, force);
+}
+
+extern "C" int rbd_mirror_image_promote(rbd_image_t image, bool force)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ return librbd::api::Mirror<>::image_promote(ictx, force);
+}
+
+extern "C" int rbd_mirror_image_demote(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ return librbd::api::Mirror<>::image_demote(ictx);
+}
+
+extern "C" int rbd_mirror_image_resync(rbd_image_t image)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ return librbd::api::Mirror<>::image_resync(ictx);
+}
+
+extern "C" int rbd_mirror_image_get_info(rbd_image_t image,
+ rbd_mirror_image_info_t *mirror_image_info,
+ size_t info_size)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+
+ librbd::mirror_image_info_t cpp_mirror_image;
+ int r = librbd::api::Mirror<>::image_get_info(ictx, &cpp_mirror_image,
+ sizeof(cpp_mirror_image));
+ if (r < 0) {
+ return r;
+ }
+
+ mirror_image_info_cpp_to_c(cpp_mirror_image, mirror_image_info);
+ return 0;
+}
+
+extern "C" int rbd_mirror_image_get_status(rbd_image_t image,
+ rbd_mirror_image_status_t *status,
+ size_t status_size)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+
+ librbd::mirror_image_status_t cpp_status;
+ int r = librbd::api::Mirror<>::image_get_status(ictx, &cpp_status,
+ sizeof(cpp_status));
+ if (r < 0) {
+ return r;
+ }
+
+ mirror_image_status_cpp_to_c(cpp_status, status);
+ return 0;
+}
+
+extern "C" int rbd_aio_mirror_image_promote(rbd_image_t image, bool force,
+ rbd_completion_t c) {
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ librbd::api::Mirror<>::image_promote(
+ ictx, force, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(comp)));
+ return 0;
+}
+
+extern "C" int rbd_aio_mirror_image_demote(rbd_image_t image,
+ rbd_completion_t c) {
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ librbd::api::Mirror<>::image_demote(
+ ictx, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(comp)));
+ return 0;
+}
+
+extern "C" int rbd_aio_mirror_image_get_info(rbd_image_t image,
+ rbd_mirror_image_info_t *info,
+ size_t info_size,
+ rbd_completion_t c) {
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+
+ if (sizeof(rbd_mirror_image_info_t) > info_size) {
+ return -ERANGE;
+ }
+
+ auto ctx = new C_MirrorImageGetInfo(
+ info, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(comp)));
+ librbd::api::Mirror<>::image_get_info(
+ ictx, &ctx->cpp_mirror_image_info, sizeof(ctx->cpp_mirror_image_info), ctx);
+ return 0;
+}
+
+extern "C" int rbd_aio_mirror_image_get_status(rbd_image_t image,
+ rbd_mirror_image_status_t *status,
+ size_t status_size,
+ rbd_completion_t c) {
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+
+ if (sizeof(rbd_mirror_image_status_t) > status_size) {
+ return -ERANGE;
+ }
+
+ auto ctx = new C_MirrorImageGetStatus(
+ status, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC,
+ get_aio_completion(comp)));
+ librbd::api::Mirror<>::image_get_status(
+ ictx, &ctx->cpp_mirror_image_status, sizeof(ctx->cpp_mirror_image_status),
+ ctx);
+ return 0;
+}
+
+extern "C" int rbd_update_watch(rbd_image_t image, uint64_t *handle,
+ rbd_update_callback_t watch_cb, void *arg)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ C_UpdateWatchCB *wctx = new C_UpdateWatchCB(watch_cb, arg);
+ tracepoint(librbd, update_watch_enter, ictx, wctx);
+ int r = ictx->state->register_update_watcher(wctx, &wctx->handle);
+ tracepoint(librbd, update_watch_exit, r, wctx->handle);
+ *handle = reinterpret_cast<uint64_t>(wctx);
+ return r;
+}
+
+extern "C" int rbd_update_unwatch(rbd_image_t image, uint64_t handle)
+{
+ librbd::ImageCtx *ictx = (librbd::ImageCtx *)image;
+ C_UpdateWatchCB *wctx = reinterpret_cast<C_UpdateWatchCB *>(handle);
+ tracepoint(librbd, update_unwatch_enter, ictx, wctx->handle);
+ int r = ictx->state->unregister_update_watcher(wctx->handle);
+ delete wctx;
+ tracepoint(librbd, update_unwatch_exit, r);
+ return r;
+}
+
+extern "C" int rbd_aio_is_complete(rbd_completion_t c)
+{
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ return comp->is_complete();
+}
+
+extern "C" int rbd_aio_wait_for_complete(rbd_completion_t c)
+{
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ return comp->wait_for_complete();
+}
+
+extern "C" ssize_t rbd_aio_get_return_value(rbd_completion_t c)
+{
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ return comp->get_return_value();
+}
+
+extern "C" void *rbd_aio_get_arg(rbd_completion_t c)
+{
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ return comp->get_arg();
+}
+
+extern "C" void rbd_aio_release(rbd_completion_t c)
+{
+ librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c;
+ comp->release();
+}
+
Code Review / stor4nfv.git / blobdiff