Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 366 insertions, 0 deletions

diff --git a/src/test/rbd_mirror/test_mock_InstanceReplayer.cc b/src/test/rbd_mirror/test_mock_InstanceReplayer.cc
new file mode 100644
index 00000000..79dce7ac
--- /dev/null
+++ b/src/test/rbd_mirror/test_mock_InstanceReplayer.cc
@@ -0,0 +1,366 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "test/librbd/mock/MockImageCtx.h"
+#include "test/rbd_mirror/test_mock_fixture.h"
+#include "test/rbd_mirror/mock/MockContextWQ.h"
+#include "test/rbd_mirror/mock/MockSafeTimer.h"
+#include "tools/rbd_mirror/ImageReplayer.h"
+#include "tools/rbd_mirror/InstanceWatcher.h"
+#include "tools/rbd_mirror/InstanceReplayer.h"
+#include "tools/rbd_mirror/ServiceDaemon.h"
+#include "tools/rbd_mirror/Threads.h"
+#include "tools/rbd_mirror/image_replayer/Types.h"
+
+namespace librbd {
+
+namespace {
+
+struct MockTestImageCtx : public MockImageCtx {
+  MockTestImageCtx(librbd::ImageCtx &image_ctx)
+    : librbd::MockImageCtx(image_ctx) {
+  }
+};
+
+} // anonymous namespace
+
+} // namespace librbd
+
+namespace rbd {
+namespace mirror {
+
+template <>
+struct Threads<librbd::MockTestImageCtx> {
+  MockSafeTimer *timer;
+  Mutex &timer_lock;
+  Cond timer_cond;
+
+  MockContextWQ *work_queue;
+
+  Threads(Threads<librbd::ImageCtx> *threads)
+    : timer(new MockSafeTimer()),
+      timer_lock(threads->timer_lock),
+      work_queue(new MockContextWQ()) {
+  }
+  ~Threads() {
+    delete timer;
+    delete work_queue;
+  }
+};
+
+template<>
+struct ServiceDaemon<librbd::MockTestImageCtx> {
+  MOCK_METHOD3(add_or_update_attribute,
+               void(int64_t, const std::string&,
+                    const service_daemon::AttributeValue&));
+};
+
+template<>
+struct InstanceWatcher<librbd::MockTestImageCtx> {
+};
+
+template<>
+struct ImageReplayer<librbd::MockTestImageCtx> {
+  static ImageReplayer* s_instance;
+  std::string global_image_id;
+
+  static ImageReplayer *create(
+    Threads<librbd::MockTestImageCtx> *threads,
+    InstanceWatcher<librbd::MockTestImageCtx> *instance_watcher,
+    RadosRef local, const std::string &local_mirror_uuid, int64_t local_pool_id,
+    const std::string &global_image_id) {
+    ceph_assert(s_instance != nullptr);
+    s_instance->global_image_id = global_image_id;
+    return s_instance;
+  }
+
+  ImageReplayer() {
+    ceph_assert(s_instance == nullptr);
+    s_instance = this;
+  }
+
+  virtual ~ImageReplayer() {
+    ceph_assert(s_instance == this);
+    s_instance = nullptr;
+  }
+
+  MOCK_METHOD0(destroy, void());
+  MOCK_METHOD2(start, void(Context *, bool));
+  MOCK_METHOD2(stop, void(Context *, bool));
+  MOCK_METHOD0(restart, void());
+  MOCK_METHOD0(flush, void());
+  MOCK_METHOD2(print_status, void(Formatter *, stringstream *));
+  MOCK_METHOD2(add_peer, void(const std::string &, librados::IoCtx &));
+  MOCK_METHOD0(get_global_image_id, const std::string &());
+  MOCK_METHOD0(get_local_image_id, const std::string &());
+  MOCK_METHOD0(is_running, bool());
+  MOCK_METHOD0(is_stopped, bool());
+  MOCK_METHOD0(is_blacklisted, bool());
+
+  MOCK_CONST_METHOD0(is_finished, bool());
+  MOCK_METHOD1(set_finished, void(bool));
+
+  MOCK_CONST_METHOD0(get_health_state, image_replayer::HealthState());
+};
+
+ImageReplayer<librbd::MockTestImageCtx>* ImageReplayer<librbd::MockTestImageCtx>::s_instance = nullptr;
+
+} // namespace mirror
+} // namespace rbd
+
+// template definitions
+#include "tools/rbd_mirror/InstanceReplayer.cc"
+
+namespace rbd {
+namespace mirror {
+
+using ::testing::_;
+using ::testing::DoAll;
+using ::testing::InSequence;
+using ::testing::Invoke;
+using ::testing::Return;
+using ::testing::ReturnArg;
+using ::testing::ReturnRef;
+using ::testing::WithArg;
+
+class TestMockInstanceReplayer : public TestMockFixture {
+public:
+  typedef Threads<librbd::MockTestImageCtx> MockThreads;
+  typedef ImageReplayer<librbd::MockTestImageCtx> MockImageReplayer;
+  typedef InstanceReplayer<librbd::MockTestImageCtx> MockInstanceReplayer;
+  typedef InstanceWatcher<librbd::MockTestImageCtx> MockInstanceWatcher;
+  typedef ServiceDaemon<librbd::MockTestImageCtx> MockServiceDaemon;
+
+  void expect_work_queue(MockThreads &mock_threads) {
+    EXPECT_CALL(*mock_threads.work_queue, queue(_, _))
+      .WillOnce(Invoke([this](Context *ctx, int r) {
+          m_threads->work_queue->queue(ctx, r);
+        }));
+  }
+
+  void expect_add_event_after(MockThreads &mock_threads,
+                              Context** timer_ctx = nullptr) {
+    EXPECT_CALL(*mock_threads.timer, add_event_after(_, _))
+      .WillOnce(DoAll(
+        WithArg<1>(Invoke([this, &mock_threads, timer_ctx](Context *ctx) {
+          ceph_assert(mock_threads.timer_lock.is_locked());
+          if (timer_ctx != nullptr) {
+            *timer_ctx = ctx;
+            mock_threads.timer_cond.SignalOne();
+          } else {
+            m_threads->work_queue->queue(
+              new FunctionContext([&mock_threads, ctx](int) {
+                Mutex::Locker timer_lock(mock_threads.timer_lock);
+                ctx->complete(0);
+              }), 0);
+          }
+        })),
+        ReturnArg<1>()));
+  }
+
+  void expect_cancel_event(MockThreads &mock_threads, bool canceled) {
+    EXPECT_CALL(*mock_threads.timer, cancel_event(_))
+      .WillOnce(Return(canceled));
+  }
+};
+
+TEST_F(TestMockInstanceReplayer, AcquireReleaseImage) {
+  MockThreads mock_threads(m_threads);
+  MockServiceDaemon mock_service_daemon;
+  MockInstanceWatcher mock_instance_watcher;
+  MockImageReplayer mock_image_replayer;
+  MockInstanceReplayer instance_replayer(
+    &mock_threads, &mock_service_daemon,
+    rbd::mirror::RadosRef(new librados::Rados(m_local_io_ctx)),
+    "local_mirror_uuid", m_local_io_ctx.get_id());
+  std::string global_image_id("global_image_id");
+
+  EXPECT_CALL(mock_image_replayer, get_global_image_id())
+    .WillRepeatedly(ReturnRef(global_image_id));
+
+  InSequence seq;
+  expect_work_queue(mock_threads);
+  Context *timer_ctx = nullptr;
+  expect_add_event_after(mock_threads, &timer_ctx);
+  instance_replayer.init();
+  instance_replayer.add_peer("peer_uuid", m_remote_io_ctx);
+
+  // Acquire
+
+  C_SaferCond on_acquire;
+  EXPECT_CALL(mock_image_replayer, add_peer("peer_uuid", _));
+  EXPECT_CALL(mock_image_replayer, is_stopped()).WillOnce(Return(true));
+  EXPECT_CALL(mock_image_replayer, is_blacklisted()).WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, is_finished()).WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, start(nullptr, false));
+  expect_work_queue(mock_threads);
+
+  instance_replayer.acquire_image(&mock_instance_watcher, global_image_id,
+                                  &on_acquire);
+  ASSERT_EQ(0, on_acquire.wait());
+
+  // Release
+
+  C_SaferCond on_release;
+
+  EXPECT_CALL(mock_image_replayer, is_stopped())
+    .WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, is_running())
+    .WillOnce(Return(false));
+  expect_work_queue(mock_threads);
+  expect_add_event_after(mock_threads);
+  expect_work_queue(mock_threads);
+  EXPECT_CALL(mock_image_replayer, is_stopped())
+    .WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, is_running())
+    .WillOnce(Return(true));
+  EXPECT_CALL(mock_image_replayer, stop(_, false))
+    .WillOnce(CompleteContext(0));
+  expect_work_queue(mock_threads);
+  EXPECT_CALL(mock_image_replayer, is_stopped())
+    .WillOnce(Return(true));
+  expect_work_queue(mock_threads);
+  EXPECT_CALL(mock_image_replayer, destroy());
+
+  instance_replayer.release_image("global_image_id", &on_release);
+  ASSERT_EQ(0, on_release.wait());
+
+  expect_work_queue(mock_threads);
+  expect_cancel_event(mock_threads, true);
+  expect_work_queue(mock_threads);
+  instance_replayer.shut_down();
+  ASSERT_TRUE(timer_ctx != nullptr);
+  delete timer_ctx;
+}
+
+TEST_F(TestMockInstanceReplayer, RemoveFinishedImage) {
+  MockThreads mock_threads(m_threads);
+  MockServiceDaemon mock_service_daemon;
+  MockInstanceWatcher mock_instance_watcher;
+  MockImageReplayer mock_image_replayer;
+  MockInstanceReplayer instance_replayer(
+    &mock_threads, &mock_service_daemon,
+    rbd::mirror::RadosRef(new librados::Rados(m_local_io_ctx)),
+    "local_mirror_uuid", m_local_io_ctx.get_id());
+  std::string global_image_id("global_image_id");
+
+  EXPECT_CALL(mock_image_replayer, get_global_image_id())
+    .WillRepeatedly(ReturnRef(global_image_id));
+
+  InSequence seq;
+  expect_work_queue(mock_threads);
+  Context *timer_ctx1 = nullptr;
+  expect_add_event_after(mock_threads, &timer_ctx1);
+  instance_replayer.init();
+  instance_replayer.add_peer("peer_uuid", m_remote_io_ctx);
+
+  // Acquire
+
+  C_SaferCond on_acquire;
+  EXPECT_CALL(mock_image_replayer, add_peer("peer_uuid", _));
+  EXPECT_CALL(mock_image_replayer, is_stopped()).WillOnce(Return(true));
+  EXPECT_CALL(mock_image_replayer, is_blacklisted()).WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, is_finished()).WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, start(nullptr, false));
+  expect_work_queue(mock_threads);
+
+  instance_replayer.acquire_image(&mock_instance_watcher, global_image_id,
+                                  &on_acquire);
+  ASSERT_EQ(0, on_acquire.wait());
+
+  // periodic start timer
+  Context *timer_ctx2 = nullptr;
+  expect_add_event_after(mock_threads, &timer_ctx2);
+
+  Context *start_image_replayers_ctx = nullptr;
+  EXPECT_CALL(*mock_threads.work_queue, queue(_, 0))
+    .WillOnce(Invoke([&start_image_replayers_ctx](Context *ctx, int r) {
+                start_image_replayers_ctx = ctx;
+              }));
+
+  ASSERT_TRUE(timer_ctx1 != nullptr);
+  {
+    Mutex::Locker timer_locker(mock_threads.timer_lock);
+    timer_ctx1->complete(0);
+  }
+
+  // remove finished image replayer
+  EXPECT_CALL(mock_image_replayer, get_health_state()).WillOnce(
+    Return(image_replayer::HEALTH_STATE_OK));
+  EXPECT_CALL(mock_image_replayer, is_stopped()).WillOnce(Return(true));
+  EXPECT_CALL(mock_image_replayer, is_blacklisted()).WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, is_finished()).WillOnce(Return(true));
+  EXPECT_CALL(mock_image_replayer, destroy());
+  EXPECT_CALL(mock_service_daemon,add_or_update_attribute(_, _, _)).Times(3);
+
+  ASSERT_TRUE(start_image_replayers_ctx != nullptr);
+  start_image_replayers_ctx->complete(0);
+
+  // shut down
+  expect_work_queue(mock_threads);
+  expect_cancel_event(mock_threads, true);
+  expect_work_queue(mock_threads);
+  instance_replayer.shut_down();
+  ASSERT_TRUE(timer_ctx2 != nullptr);
+  delete timer_ctx2;
+}
+
+TEST_F(TestMockInstanceReplayer, Reacquire) {
+  MockThreads mock_threads(m_threads);
+  MockServiceDaemon mock_service_daemon;
+  MockInstanceWatcher mock_instance_watcher;
+  MockImageReplayer mock_image_replayer;
+  MockInstanceReplayer instance_replayer(
+    &mock_threads, &mock_service_daemon,
+    rbd::mirror::RadosRef(new librados::Rados(m_local_io_ctx)),
+    "local_mirror_uuid", m_local_io_ctx.get_id());
+  std::string global_image_id("global_image_id");
+
+  EXPECT_CALL(mock_image_replayer, get_global_image_id())
+    .WillRepeatedly(ReturnRef(global_image_id));
+
+  InSequence seq;
+  expect_work_queue(mock_threads);
+  Context *timer_ctx = nullptr;
+  expect_add_event_after(mock_threads, &timer_ctx);
+  instance_replayer.init();
+  instance_replayer.add_peer("peer_uuid", m_remote_io_ctx);
+
+  // Acquire
+
+  EXPECT_CALL(mock_image_replayer, add_peer("peer_uuid", _));
+  EXPECT_CALL(mock_image_replayer, is_stopped()).WillOnce(Return(true));
+  EXPECT_CALL(mock_image_replayer, is_blacklisted()).WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, is_finished()).WillOnce(Return(false));
+  EXPECT_CALL(mock_image_replayer, start(nullptr, false));
+  expect_work_queue(mock_threads);
+
+  C_SaferCond on_acquire1;
+  instance_replayer.acquire_image(&mock_instance_watcher, global_image_id,
+                                  &on_acquire1);
+  ASSERT_EQ(0, on_acquire1.wait());
+
+  // Re-acquire
+  EXPECT_CALL(mock_image_replayer, set_finished(false));
+  EXPECT_CALL(mock_image_replayer, restart());
+  expect_work_queue(mock_threads);
+
+  C_SaferCond on_acquire2;
+  instance_replayer.acquire_image(&mock_instance_watcher, global_image_id,
+                                  &on_acquire2);
+  ASSERT_EQ(0, on_acquire2.wait());
+
+  expect_work_queue(mock_threads);
+  expect_cancel_event(mock_threads, true);
+  EXPECT_CALL(mock_image_replayer, is_stopped()).WillOnce(Return(true));
+  expect_work_queue(mock_threads);
+  expect_work_queue(mock_threads);
+  EXPECT_CALL(mock_image_replayer, is_stopped()).WillOnce(Return(true));
+  EXPECT_CALL(mock_image_replayer, destroy());
+  instance_replayer.shut_down();
+  ASSERT_TRUE(timer_ctx != nullptr);
+  delete timer_ctx;
+}
+
+} // namespace mirror
+} // namespace rbd