1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 #include "test/librbd/test_fixture.h"
5 #include "test/librbd/test_support.h"
6 #include "librbd/internal.h"
7 #include "librbd/Journal.h"
8 #include "librbd/io/AioCompletion.h"
9 #include "librbd/io/ImageRequestWQ.h"
10 #include "librbd/journal/Types.h"
11 #include "journal/Journaler.h"
12 #include "journal/ReplayEntry.h"
13 #include "journal/ReplayHandler.h"
14 #include "journal/Settings.h"
16 #include <boost/variant.hpp>
18 void register_test_journal_entries() {
21 class TestJournalEntries : public TestFixture {
23 typedef std::list<journal::Journaler *> Journalers;
25 struct ReplayHandler : public journal::ReplayHandler {
28 bool entries_available;
32 : lock("ReplayHandler::lock"), entries_available(false), complete(false) {
40 void handle_entries_available() override {
41 Mutex::Locker locker(lock);
42 entries_available = true;
46 void handle_complete(int r) override {
47 Mutex::Locker locker(lock);
53 ReplayHandler m_replay_handler;
54 Journalers m_journalers;
56 void TearDown() override {
57 for (Journalers::iterator it = m_journalers.begin();
58 it != m_journalers.end(); ++it) {
59 journal::Journaler *journaler = *it;
60 journaler->stop_replay();
61 journaler->shut_down();
65 TestFixture::TearDown();
68 journal::Journaler *create_journaler(librbd::ImageCtx *ictx) {
69 journal::Journaler *journaler = new journal::Journaler(
70 ictx->md_ctx, ictx->id, "dummy client", {});
72 int r = journaler->register_client(bufferlist());
74 ADD_FAILURE() << "failed to register journal client";
80 journaler->init(&cond);
83 ADD_FAILURE() << "failed to initialize journal client";
88 journaler->start_live_replay(&m_replay_handler, 0.1);
89 m_journalers.push_back(journaler);
93 bool wait_for_entries_available(librbd::ImageCtx *ictx) {
94 Mutex::Locker locker(m_replay_handler.lock);
95 while (!m_replay_handler.entries_available) {
96 if (m_replay_handler.cond.WaitInterval(m_replay_handler.lock,
97 utime_t(10, 0)) != 0) {
101 m_replay_handler.entries_available = false;
105 bool get_event_entry(const journal::ReplayEntry &replay_entry,
106 librbd::journal::EventEntry *event_entry) {
108 bufferlist data_bl = replay_entry.get_data();
109 bufferlist::iterator it = data_bl.begin();
110 ::decode(*event_entry, it);
111 } catch (const buffer::error &err) {
119 TEST_F(TestJournalEntries, AioWrite) {
120 REQUIRE_FEATURE(RBD_FEATURE_JOURNALING);
122 librbd::ImageCtx *ictx;
123 ASSERT_EQ(0, open_image(m_image_name, &ictx));
125 journal::Journaler *journaler = create_journaler(ictx);
126 ASSERT_TRUE(journaler != NULL);
128 std::string buffer(512, '1');
130 write_bl.append(buffer);
132 C_SaferCond cond_ctx;
133 auto c = librbd::io::AioCompletion::create(&cond_ctx);
135 ictx->io_work_queue->aio_write(c, 123, buffer.size(), std::move(write_bl), 0);
136 ASSERT_EQ(0, c->wait_for_complete());
139 ASSERT_TRUE(wait_for_entries_available(ictx));
141 journal::ReplayEntry replay_entry;
142 ASSERT_TRUE(journaler->try_pop_front(&replay_entry));
144 librbd::journal::EventEntry event_entry;
145 ASSERT_TRUE(get_event_entry(replay_entry, &event_entry));
147 ASSERT_EQ(librbd::journal::EVENT_TYPE_AIO_WRITE,
148 event_entry.get_event_type());
150 librbd::journal::AioWriteEvent aio_write_event =
151 boost::get<librbd::journal::AioWriteEvent>(event_entry.event);
152 ASSERT_EQ(123U, aio_write_event.offset);
153 ASSERT_EQ(buffer.size(), aio_write_event.length);
155 bufferlist buffer_bl;
156 buffer_bl.append(buffer);
157 ASSERT_TRUE(aio_write_event.data.contents_equal(buffer_bl));
159 ASSERT_EQ(librbd::journal::AioWriteEvent::get_fixed_size() +
160 aio_write_event.data.length(), replay_entry.get_data().length());
163 TEST_F(TestJournalEntries, AioDiscard) {
164 REQUIRE_FEATURE(RBD_FEATURE_JOURNALING);
166 CephContext* cct = reinterpret_cast<CephContext*>(_rados.cct());
167 REQUIRE(!cct->_conf->get_val<bool>("rbd_skip_partial_discard"));
169 librbd::ImageCtx *ictx;
170 ASSERT_EQ(0, open_image(m_image_name, &ictx));
172 journal::Journaler *journaler = create_journaler(ictx);
173 ASSERT_TRUE(journaler != NULL);
175 C_SaferCond cond_ctx;
176 auto c = librbd::io::AioCompletion::create(&cond_ctx);
178 ictx->io_work_queue->aio_discard(c, 123, 234, ictx->skip_partial_discard);
179 ASSERT_EQ(0, c->wait_for_complete());
182 ASSERT_TRUE(wait_for_entries_available(ictx));
184 journal::ReplayEntry replay_entry;
185 ASSERT_TRUE(journaler->try_pop_front(&replay_entry));
187 librbd::journal::EventEntry event_entry;
188 ASSERT_TRUE(get_event_entry(replay_entry, &event_entry));
190 ASSERT_EQ(librbd::journal::EVENT_TYPE_AIO_DISCARD,
191 event_entry.get_event_type());
193 librbd::journal::AioDiscardEvent aio_discard_event =
194 boost::get<librbd::journal::AioDiscardEvent>(event_entry.event);
195 ASSERT_EQ(123U, aio_discard_event.offset);
196 ASSERT_EQ(234U, aio_discard_event.length);
199 TEST_F(TestJournalEntries, AioFlush) {
200 REQUIRE_FEATURE(RBD_FEATURE_JOURNALING);
202 librbd::ImageCtx *ictx;
203 ASSERT_EQ(0, open_image(m_image_name, &ictx));
205 journal::Journaler *journaler = create_journaler(ictx);
206 ASSERT_TRUE(journaler != NULL);
208 C_SaferCond cond_ctx;
209 auto c = librbd::io::AioCompletion::create(&cond_ctx);
211 ictx->io_work_queue->aio_flush(c);
212 ASSERT_EQ(0, c->wait_for_complete());
215 ASSERT_TRUE(wait_for_entries_available(ictx));
217 journal::ReplayEntry replay_entry;
218 ASSERT_TRUE(journaler->try_pop_front(&replay_entry));
220 librbd::journal::EventEntry event_entry;
221 ASSERT_TRUE(get_event_entry(replay_entry, &event_entry));
223 ASSERT_EQ(librbd::journal::EVENT_TYPE_AIO_FLUSH,
224 event_entry.get_event_type());