--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "cls/journal/cls_journal_client.h"
+#include "include/rados/librados.hpp"
+#include "include/buffer.h"
+#include "include/Context.h"
+#include "common/Cond.h"
+#include <errno.h>
+
+namespace cls {
+namespace journal {
+namespace client {
+
+namespace {
+
+struct C_AioExec : public Context {
+ librados::IoCtx &ioctx;
+ std::string oid;
+
+ C_AioExec(librados::IoCtx &_ioctx, const std::string &_oid)
+ : ioctx(_ioctx), oid(_oid) {
+ }
+
+ static void rados_callback(rados_completion_t c, void *arg) {
+ Context *ctx = reinterpret_cast<Context *>(arg);
+ ctx->complete(rados_aio_get_return_value(c));
+ }
+};
+
+struct C_ClientList : public C_AioExec {
+ std::set<cls::journal::Client> *clients;
+ Context *on_finish;
+ bufferlist outbl;
+
+ C_ClientList(librados::IoCtx &_ioctx, const std::string &_oid,
+ std::set<cls::journal::Client> *_clients,
+ Context *_on_finish)
+ : C_AioExec(_ioctx, _oid), clients(_clients), on_finish(_on_finish) {}
+
+ void send(const std::string &start_after) {
+ bufferlist inbl;
+ ::encode(start_after, inbl);
+ ::encode(JOURNAL_MAX_RETURN, inbl);
+
+ librados::ObjectReadOperation op;
+ op.exec("journal", "client_list", inbl);
+
+ outbl.clear();
+ librados::AioCompletion *rados_completion =
+ librados::Rados::aio_create_completion(this, rados_callback, NULL);
+ int r = ioctx.aio_operate(oid, rados_completion, &op, &outbl);
+ assert(r == 0);
+ rados_completion->release();
+ }
+
+ void complete(int r) override {
+ if (r < 0) {
+ finish(r);
+ return;
+ }
+
+ try {
+ bufferlist::iterator iter = outbl.begin();
+ std::set<cls::journal::Client> partial_clients;
+ ::decode(partial_clients, iter);
+
+ std::string start_after;
+ if (!partial_clients.empty()) {
+ start_after = partial_clients.rbegin()->id;
+ clients->insert(partial_clients.begin(), partial_clients.end());
+ }
+
+ if (partial_clients.size() < JOURNAL_MAX_RETURN) {
+ finish(0);
+ } else {
+ send(start_after);
+ }
+ } catch (const buffer::error &err) {
+ finish(-EBADMSG);
+ }
+ }
+
+ void finish(int r) override {
+ on_finish->complete(r);
+ delete this;
+ }
+};
+
+struct C_ImmutableMetadata : public C_AioExec {
+ uint8_t *order;
+ uint8_t *splay_width;
+ int64_t *pool_id;
+ Context *on_finish;
+ bufferlist outbl;
+
+ C_ImmutableMetadata(librados::IoCtx &_ioctx, const std::string &_oid,
+ uint8_t *_order, uint8_t *_splay_width,
+ int64_t *_pool_id, Context *_on_finish)
+ : C_AioExec(_ioctx, _oid), order(_order), splay_width(_splay_width),
+ pool_id(_pool_id), on_finish(_on_finish) {
+ }
+
+ void send() {
+ librados::ObjectReadOperation op;
+ bufferlist inbl;
+ op.exec("journal", "get_order", inbl);
+ op.exec("journal", "get_splay_width", inbl);
+ op.exec("journal", "get_pool_id", inbl);
+
+ librados::AioCompletion *rados_completion =
+ librados::Rados::aio_create_completion(this, rados_callback, NULL);
+ int r = ioctx.aio_operate(oid, rados_completion, &op, &outbl);
+ assert(r == 0);
+ rados_completion->release();
+ }
+
+ void finish(int r) override {
+ if (r == 0) {
+ try {
+ bufferlist::iterator iter = outbl.begin();
+ ::decode(*order, iter);
+ ::decode(*splay_width, iter);
+ ::decode(*pool_id, iter);
+ } catch (const buffer::error &err) {
+ r = -EBADMSG;
+ }
+ }
+ on_finish->complete(r);
+ }
+};
+
+struct C_MutableMetadata : public C_AioExec {
+ uint64_t *minimum_set;
+ uint64_t *active_set;
+ C_ClientList *client_list;
+ bufferlist outbl;
+
+ C_MutableMetadata(librados::IoCtx &_ioctx, const std::string &_oid,
+ uint64_t *_minimum_set, uint64_t *_active_set,
+ C_ClientList *_client_list)
+ : C_AioExec(_ioctx, _oid), minimum_set(_minimum_set),
+ active_set(_active_set), client_list(_client_list) {}
+
+ void send() {
+ librados::ObjectReadOperation op;
+ bufferlist inbl;
+ op.exec("journal", "get_minimum_set", inbl);
+ op.exec("journal", "get_active_set", inbl);
+
+ librados::AioCompletion *rados_completion =
+ librados::Rados::aio_create_completion(this, rados_callback, NULL);
+ int r = ioctx.aio_operate(oid, rados_completion, &op, &outbl);
+ assert(r == 0);
+ rados_completion->release();
+ }
+
+ void finish(int r) override {
+ if (r == 0) {
+ try {
+ bufferlist::iterator iter = outbl.begin();
+ ::decode(*minimum_set, iter);
+ ::decode(*active_set, iter);
+ client_list->send("");
+ } catch (const buffer::error &err) {
+ r = -EBADMSG;
+ }
+ }
+ if (r < 0) {
+ client_list->complete(r);
+ }
+ }
+};
+
+
+} // anonymous namespace
+
+void create(librados::ObjectWriteOperation *op,
+ uint8_t order, uint8_t splay, int64_t pool_id) {
+ bufferlist bl;
+ ::encode(order, bl);
+ ::encode(splay, bl);
+ ::encode(pool_id, bl);
+
+ op->exec("journal", "create", bl);
+}
+
+int create(librados::IoCtx &ioctx, const std::string &oid, uint8_t order,
+ uint8_t splay, int64_t pool_id) {
+ librados::ObjectWriteOperation op;
+ create(&op, order, splay, pool_id);
+
+ int r = ioctx.operate(oid, &op);
+ if (r < 0) {
+ return r;
+ }
+ return 0;
+}
+
+void get_immutable_metadata(librados::IoCtx &ioctx, const std::string &oid,
+ uint8_t *order, uint8_t *splay_width,
+ int64_t *pool_id, Context *on_finish) {
+ C_ImmutableMetadata *metadata = new C_ImmutableMetadata(ioctx, oid, order,
+ splay_width, pool_id,
+ on_finish);
+ metadata->send();
+}
+
+void get_mutable_metadata(librados::IoCtx &ioctx, const std::string &oid,
+ uint64_t *minimum_set, uint64_t *active_set,
+ std::set<cls::journal::Client> *clients,
+ Context *on_finish) {
+ C_ClientList *client_list = new C_ClientList(ioctx, oid, clients, on_finish);
+ C_MutableMetadata *metadata = new C_MutableMetadata(
+ ioctx, oid, minimum_set, active_set, client_list);
+ metadata->send();
+}
+
+void set_minimum_set(librados::ObjectWriteOperation *op, uint64_t object_set) {
+ bufferlist bl;
+ ::encode(object_set, bl);
+ op->exec("journal", "set_minimum_set", bl);
+}
+
+void set_active_set(librados::ObjectWriteOperation *op, uint64_t object_set) {
+ bufferlist bl;
+ ::encode(object_set, bl);
+ op->exec("journal", "set_active_set", bl);
+}
+
+int get_client(librados::IoCtx &ioctx, const std::string &oid,
+ const std::string &id, cls::journal::Client *client) {
+ librados::ObjectReadOperation op;
+ get_client_start(&op, id);
+
+ bufferlist out_bl;
+ int r = ioctx.operate(oid, &op, &out_bl);
+ if (r < 0) {
+ return r;
+ }
+
+ bufferlist::iterator iter = out_bl.begin();
+ r = get_client_finish(&iter, client);
+ if (r < 0) {
+ return r;
+ }
+ return 0;
+}
+
+void get_client_start(librados::ObjectReadOperation *op,
+ const std::string &id) {
+ bufferlist bl;
+ ::encode(id, bl);
+ op->exec("journal", "get_client", bl);
+}
+
+int get_client_finish(bufferlist::iterator *iter,
+ cls::journal::Client *client) {
+ try {
+ ::decode(*client, *iter);
+ } catch (const buffer::error &err) {
+ return -EBADMSG;
+ }
+ return 0;
+}
+
+int client_register(librados::IoCtx &ioctx, const std::string &oid,
+ const std::string &id, const bufferlist &data) {
+ librados::ObjectWriteOperation op;
+ client_register(&op, id, data);
+ return ioctx.operate(oid, &op);
+}
+
+void client_register(librados::ObjectWriteOperation *op,
+ const std::string &id, const bufferlist &data) {
+ bufferlist bl;
+ ::encode(id, bl);
+ ::encode(data, bl);
+ op->exec("journal", "client_register", bl);
+}
+
+int client_update_data(librados::IoCtx &ioctx, const std::string &oid,
+ const std::string &id, const bufferlist &data) {
+ librados::ObjectWriteOperation op;
+ client_update_data(&op, id, data);
+ return ioctx.operate(oid, &op);
+}
+
+void client_update_data(librados::ObjectWriteOperation *op,
+ const std::string &id, const bufferlist &data) {
+ bufferlist bl;
+ ::encode(id, bl);
+ ::encode(data, bl);
+ op->exec("journal", "client_update_data", bl);
+}
+
+int client_update_state(librados::IoCtx &ioctx, const std::string &oid,
+ const std::string &id, cls::journal::ClientState state) {
+ librados::ObjectWriteOperation op;
+ client_update_state(&op, id, state);
+ return ioctx.operate(oid, &op);
+}
+
+void client_update_state(librados::ObjectWriteOperation *op,
+ const std::string &id,
+ cls::journal::ClientState state) {
+ bufferlist bl;
+ ::encode(id, bl);
+ ::encode(static_cast<uint8_t>(state), bl);
+ op->exec("journal", "client_update_state", bl);
+}
+
+int client_unregister(librados::IoCtx &ioctx, const std::string &oid,
+ const std::string &id) {
+ librados::ObjectWriteOperation op;
+ client_unregister(&op, id);
+ return ioctx.operate(oid, &op);
+}
+
+void client_unregister(librados::ObjectWriteOperation *op,
+ const std::string &id) {
+
+ bufferlist bl;
+ ::encode(id, bl);
+ op->exec("journal", "client_unregister", bl);
+}
+
+void client_commit(librados::ObjectWriteOperation *op, const std::string &id,
+ const cls::journal::ObjectSetPosition &commit_position) {
+ bufferlist bl;
+ ::encode(id, bl);
+ ::encode(commit_position, bl);
+ op->exec("journal", "client_commit", bl);
+}
+
+int client_list(librados::IoCtx &ioctx, const std::string &oid,
+ std::set<cls::journal::Client> *clients) {
+ C_SaferCond cond;
+ client_list(ioctx, oid, clients, &cond);
+ return cond.wait();
+}
+
+void client_list(librados::IoCtx &ioctx, const std::string &oid,
+ std::set<cls::journal::Client> *clients, Context *on_finish) {
+ C_ClientList *client_list = new C_ClientList(ioctx, oid, clients, on_finish);
+ client_list->send("");
+}
+
+int get_next_tag_tid(librados::IoCtx &ioctx, const std::string &oid,
+ uint64_t *tag_tid) {
+ librados::ObjectReadOperation op;
+ get_next_tag_tid_start(&op);
+
+ bufferlist out_bl;
+ int r = ioctx.operate(oid, &op, &out_bl);
+ if (r < 0) {
+ return r;
+ }
+
+ bufferlist::iterator iter = out_bl.begin();
+ r = get_next_tag_tid_finish(&iter, tag_tid);
+ if (r < 0) {
+ return r;
+ }
+ return 0;
+}
+
+void get_next_tag_tid_start(librados::ObjectReadOperation *op) {
+ bufferlist bl;
+ op->exec("journal", "get_next_tag_tid", bl);
+}
+
+int get_next_tag_tid_finish(bufferlist::iterator *iter,
+ uint64_t *tag_tid) {
+ try {
+ ::decode(*tag_tid, *iter);
+ } catch (const buffer::error &err) {
+ return -EBADMSG;
+ }
+ return 0;
+}
+
+int get_tag(librados::IoCtx &ioctx, const std::string &oid,
+ uint64_t tag_tid, cls::journal::Tag *tag) {
+ librados::ObjectReadOperation op;
+ get_tag_start(&op, tag_tid);
+
+ bufferlist out_bl;
+ int r = ioctx.operate(oid, &op, &out_bl);
+ if (r < 0) {
+ return r;
+ }
+
+ bufferlist::iterator iter = out_bl.begin();
+ r = get_tag_finish(&iter, tag);
+ if (r < 0) {
+ return r;
+ }
+ return 0;
+}
+
+void get_tag_start(librados::ObjectReadOperation *op,
+ uint64_t tag_tid) {
+ bufferlist bl;
+ ::encode(tag_tid, bl);
+ op->exec("journal", "get_tag", bl);
+}
+
+int get_tag_finish(bufferlist::iterator *iter, cls::journal::Tag *tag) {
+ try {
+ ::decode(*tag, *iter);
+ } catch (const buffer::error &err) {
+ return -EBADMSG;
+ }
+ return 0;
+}
+
+int tag_create(librados::IoCtx &ioctx, const std::string &oid,
+ uint64_t tag_tid, uint64_t tag_class,
+ const bufferlist &data) {
+ librados::ObjectWriteOperation op;
+ tag_create(&op, tag_tid, tag_class, data);
+ return ioctx.operate(oid, &op);
+}
+
+void tag_create(librados::ObjectWriteOperation *op, uint64_t tag_tid,
+ uint64_t tag_class, const bufferlist &data) {
+ bufferlist bl;
+ ::encode(tag_tid, bl);
+ ::encode(tag_class, bl);
+ ::encode(data, bl);
+ op->exec("journal", "tag_create", bl);
+}
+
+int tag_list(librados::IoCtx &ioctx, const std::string &oid,
+ const std::string &client_id, boost::optional<uint64_t> tag_class,
+ std::set<cls::journal::Tag> *tags) {
+ tags->clear();
+ uint64_t start_after_tag_tid = 0;
+ while (true) {
+ librados::ObjectReadOperation op;
+ tag_list_start(&op, start_after_tag_tid, JOURNAL_MAX_RETURN, client_id,
+ tag_class);
+
+ bufferlist out_bl;
+ int r = ioctx.operate(oid, &op, &out_bl);
+ if (r < 0) {
+ return r;
+ }
+
+ bufferlist::iterator iter = out_bl.begin();
+ std::set<cls::journal::Tag> decode_tags;
+ r = tag_list_finish(&iter, &decode_tags);
+ if (r < 0) {
+ return r;
+ }
+
+ tags->insert(decode_tags.begin(), decode_tags.end());
+ if (decode_tags.size() < JOURNAL_MAX_RETURN) {
+ break;
+ }
+ }
+ return 0;
+}
+
+void tag_list_start(librados::ObjectReadOperation *op,
+ uint64_t start_after_tag_tid, uint64_t max_return,
+ const std::string &client_id,
+ boost::optional<uint64_t> tag_class) {
+ bufferlist bl;
+ ::encode(start_after_tag_tid, bl);
+ ::encode(max_return, bl);
+ ::encode(client_id, bl);
+ ::encode(tag_class, bl);
+ op->exec("journal", "tag_list", bl);
+}
+
+int tag_list_finish(bufferlist::iterator *iter,
+ std::set<cls::journal::Tag> *tags) {
+ try {
+ ::decode(*tags, *iter);
+ } catch (const buffer::error &err) {
+ return -EBADMSG;
+ }
+ return 0;
+}
+
+void guard_append(librados::ObjectWriteOperation *op, uint64_t soft_max_size) {
+ bufferlist bl;
+ ::encode(soft_max_size, bl);
+ op->exec("journal", "guard_append", bl);
+}
+
+} // namespace client
+} // namespace journal
+} // namespace cls
Code Review / stor4nfv.git / blobdiff