ceph/src/test/rbd_mirror/test_mock_ImageSyncThrottler.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2016 SUSE LINUX GmbH
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15 #include "test/rbd_mirror/test_mock_fixture.h"
  16 #include "test/librbd/mock/MockImageCtx.h"
  17
  18 namespace librbd {
  19
  20 namespace {
  21
  22 struct MockTestImageCtx : public librbd::MockImageCtx {
  23   MockTestImageCtx(librbd::ImageCtx &image_ctx)
  24     : librbd::MockImageCtx(image_ctx) {
  25   }
  26 };
  27
  28 } // anonymous namespace
  29
  30 } // namespace librbd
  31
  32 // template definitions
  33 #include "tools/rbd_mirror/ImageSyncThrottler.cc"
  34
  35 namespace rbd {
  36 namespace mirror {
  37
  38 class TestMockImageSyncThrottler : public TestMockFixture {
  39 public:
  40   typedef ImageSyncThrottler<librbd::MockTestImageCtx> MockImageSyncThrottler;
  41
  42 };
  43
  44 TEST_F(TestMockImageSyncThrottler, Single_Sync) {
  45   MockImageSyncThrottler throttler;
  46   C_SaferCond on_start;
  47   throttler.start_op("id", &on_start);
  48   ASSERT_EQ(0, on_start.wait());
  49   throttler.finish_op("id");
  50 }
  51
  52 TEST_F(TestMockImageSyncThrottler, Multiple_Syncs) {
  53   MockImageSyncThrottler throttler;
  54   throttler.set_max_concurrent_syncs(2);
  55
  56   C_SaferCond on_start1;
  57   throttler.start_op("id1", &on_start1);
  58   C_SaferCond on_start2;
  59   throttler.start_op("id2", &on_start2);
  60   C_SaferCond on_start3;
  61   throttler.start_op("id3", &on_start3);
  62   C_SaferCond on_start4;
  63   throttler.start_op("id4", &on_start4);
  64
  65   ASSERT_EQ(0, on_start2.wait());
  66   throttler.finish_op("id2");
  67   ASSERT_EQ(0, on_start3.wait());
  68   throttler.finish_op("id3");
  69   ASSERT_EQ(0, on_start1.wait());
  70   throttler.finish_op("id1");
  71   ASSERT_EQ(0, on_start4.wait());
  72   throttler.finish_op("id4");
  73 }
  74
  75 TEST_F(TestMockImageSyncThrottler, Cancel_Running_Sync) {
  76   MockImageSyncThrottler throttler;
  77   C_SaferCond on_start;
  78   throttler.start_op("id", &on_start);
  79   ASSERT_EQ(0, on_start.wait());
  80   ASSERT_FALSE(throttler.cancel_op("id"));
  81   throttler.finish_op("id");
  82 }
  83
  84 TEST_F(TestMockImageSyncThrottler, Cancel_Waiting_Sync) {
  85   MockImageSyncThrottler throttler;
  86   throttler.set_max_concurrent_syncs(1);
  87
  88   C_SaferCond on_start1;
  89   throttler.start_op("id1", &on_start1);
  90   C_SaferCond on_start2;
  91   throttler.start_op("id2", &on_start2);
  92
  93   ASSERT_EQ(0, on_start1.wait());
  94   ASSERT_TRUE(throttler.cancel_op("id2"));
  95   ASSERT_EQ(-ECANCELED, on_start2.wait());
  96   throttler.finish_op("id1");
  97 }
  98
  99
 100 TEST_F(TestMockImageSyncThrottler, Cancel_Running_Sync_Start_Waiting) {
 101   MockImageSyncThrottler throttler;
 102   throttler.set_max_concurrent_syncs(1);
 103
 104   C_SaferCond on_start1;
 105   throttler.start_op("id1", &on_start1);
 106   C_SaferCond on_start2;
 107   throttler.start_op("id2", &on_start2);
 108
 109   ASSERT_EQ(0, on_start1.wait());
 110   ASSERT_FALSE(throttler.cancel_op("id1"));
 111   throttler.finish_op("id1");
 112   ASSERT_EQ(0, on_start2.wait());
 113   throttler.finish_op("id2");
 114 }
 115
 116 TEST_F(TestMockImageSyncThrottler, Increase_Max_Concurrent_Syncs) {
 117   MockImageSyncThrottler throttler;
 118   throttler.set_max_concurrent_syncs(2);
 119
 120   C_SaferCond on_start1;
 121   throttler.start_op("id1", &on_start1);
 122   C_SaferCond on_start2;
 123   throttler.start_op("id2", &on_start2);
 124   C_SaferCond on_start3;
 125   throttler.start_op("id3", &on_start3);
 126   C_SaferCond on_start4;
 127   throttler.start_op("id4", &on_start4);
 128   C_SaferCond on_start5;
 129   throttler.start_op("id5", &on_start5);
 130
 131   ASSERT_EQ(0, on_start1.wait());
 132   ASSERT_EQ(0, on_start2.wait());
 133
 134   throttler.set_max_concurrent_syncs(4);
 135
 136   ASSERT_EQ(0, on_start3.wait());
 137   ASSERT_EQ(0, on_start4.wait());
 138
 139   throttler.finish_op("id4");
 140   ASSERT_EQ(0, on_start5.wait());
 141
 142   throttler.finish_op("id1");
 143   throttler.finish_op("id2");
 144   throttler.finish_op("id3");
 145   throttler.finish_op("id5");
 146 }
 147
 148 TEST_F(TestMockImageSyncThrottler, Decrease_Max_Concurrent_Syncs) {
 149   MockImageSyncThrottler throttler;
 150   throttler.set_max_concurrent_syncs(4);
 151
 152   C_SaferCond on_start1;
 153   throttler.start_op("id1", &on_start1);
 154   C_SaferCond on_start2;
 155   throttler.start_op("id2", &on_start2);
 156   C_SaferCond on_start3;
 157   throttler.start_op("id3", &on_start3);
 158   C_SaferCond on_start4;
 159   throttler.start_op("id4", &on_start4);
 160   C_SaferCond on_start5;
 161   throttler.start_op("id5", &on_start5);
 162
 163   ASSERT_EQ(0, on_start1.wait());
 164   ASSERT_EQ(0, on_start2.wait());
 165   ASSERT_EQ(0, on_start3.wait());
 166   ASSERT_EQ(0, on_start4.wait());
 167
 168   throttler.set_max_concurrent_syncs(2);
 169
 170   throttler.finish_op("id1");
 171   throttler.finish_op("id2");
 172   throttler.finish_op("id3");
 173
 174   ASSERT_EQ(0, on_start5.wait());
 175
 176   throttler.finish_op("id4");
 177   throttler.finish_op("id5");
 178 }
 179
 180 } // namespace mirror
 181 } // namespace rbd
 182