X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2Flibrbd.cc;fp=src%2Fceph%2Fsrc%2Flibrbd%2Flibrbd.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=31889b822a6d9e3622a2004c833e3641f5ea98d3;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/librbd/librbd.cc b/src/ceph/src/librbd/librbd.cc deleted file mode 100644 index 31889b8..0000000 --- a/src/ceph/src/librbd/librbd.cc +++ /dev/null @@ -1,4005 +0,0 @@ -// -*- 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 - -#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 -#include -#include - -#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(io_ctx.cct()); -} - -librbd::io::AioCompletion* get_aio_completion(librbd::RBD::AioCompletion *comp) { - return reinterpret_cast(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(*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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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 &entries) { - TracepointProvider::initialize(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(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(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(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& names) - { - TracepointProvider::initialize(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::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(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 *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 *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 *states) { - return librbd::api::Mirror<>::image_status_summary(io_ctx, states); - } - - RBD::AioCompletion::AioCompletion(void *cb_arg, callback_t complete_cb) - { - pc = reinterpret_cast(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(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(ctx); - if (ictx->old_format) { - return -EINVAL; - } - *id = ictx->id; - return 0; - } - - std::string Image::get_block_name_prefix() - { - ImageCtx *ictx = reinterpret_cast(ctx); - return ictx->object_prefix; - } - - int64_t Image::get_data_pool_id() - { - ImageCtx *ictx = reinterpret_cast(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 *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(ctx); - return ictx->operations->rebuild_object_map(prog_ctx); - } - - int Image::check_object_map(ProgressContext &prog_ctx) - { - ImageCtx *ictx = reinterpret_cast(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 > *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 >::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 *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::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& 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::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 *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::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 peer_vector; - int r = librbd::api::Mirror<>::peer_list(io_ctx, &peer_vector); - if (r < 0) { - return r; - } - - if (*max_peers < static_cast(peer_vector.size())) { - *max_peers = static_cast(peer_vector.size()); - return -ERANGE; - } - - for (int i = 0; i < static_cast(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(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 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 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(get_cct(io_ctx)); - tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id()); - vector 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(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(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(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(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(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(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(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(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(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(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(get_cct(io_ctx)); - tracepoint(librbd, trash_list_enter, - io_ctx.get_pool_name().c_str(), io_ctx.get_id()); - - vector 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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(image); - tracepoint(librbd, lock_get_owners_enter, ictx); - std::list 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(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(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 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 > 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 >::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 >::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 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::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::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(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(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 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::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::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(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(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(); -} -