Kostya Serebryany | da4edd8 | 2012-05-10 14:18:22 +0000 | [diff] [blame^] | 1 | //===-- tsan_clock_test.cc --------------------------------------*- C++ -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file is a part of ThreadSanitizer (TSan), a race detector. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | #include "tsan_clock.h" |
| 14 | #include "tsan_rtl.h" |
| 15 | #include "gtest/gtest.h" |
| 16 | |
| 17 | namespace __tsan { |
| 18 | |
| 19 | TEST(Clock, VectorBasic) { |
| 20 | ScopedInRtl in_rtl; |
| 21 | ThreadClock clk; |
| 22 | CHECK_EQ(clk.size(), 0); |
| 23 | clk.tick(0); |
| 24 | CHECK_EQ(clk.size(), 1); |
| 25 | CHECK_EQ(clk.get(0), 1); |
| 26 | clk.tick(3); |
| 27 | CHECK_EQ(clk.size(), 4); |
| 28 | CHECK_EQ(clk.get(0), 1); |
| 29 | CHECK_EQ(clk.get(1), 0); |
| 30 | CHECK_EQ(clk.get(2), 0); |
| 31 | CHECK_EQ(clk.get(3), 1); |
| 32 | clk.tick(3); |
| 33 | CHECK_EQ(clk.get(3), 2); |
| 34 | } |
| 35 | |
| 36 | TEST(Clock, ChunkedBasic) { |
| 37 | ScopedInRtl in_rtl; |
| 38 | ThreadClock vector; |
| 39 | SyncClock chunked; |
| 40 | CHECK_EQ(vector.size(), 0); |
| 41 | CHECK_EQ(chunked.size(), 0); |
| 42 | vector.acquire(&chunked); |
| 43 | CHECK_EQ(vector.size(), 0); |
| 44 | CHECK_EQ(chunked.size(), 0); |
| 45 | vector.release(&chunked); |
| 46 | CHECK_EQ(vector.size(), 0); |
| 47 | CHECK_EQ(chunked.size(), 0); |
| 48 | vector.acq_rel(&chunked); |
| 49 | CHECK_EQ(vector.size(), 0); |
| 50 | CHECK_EQ(chunked.size(), 0); |
| 51 | } |
| 52 | |
| 53 | TEST(Clock, AcquireRelease) { |
| 54 | ScopedInRtl in_rtl; |
| 55 | ThreadClock vector1; |
| 56 | vector1.tick(100); |
| 57 | SyncClock chunked; |
| 58 | vector1.release(&chunked); |
| 59 | CHECK_EQ(chunked.size(), 101); |
| 60 | ThreadClock vector2; |
| 61 | vector2.acquire(&chunked); |
| 62 | CHECK_EQ(vector2.size(), 101); |
| 63 | CHECK_EQ(vector2.get(0), 0); |
| 64 | CHECK_EQ(vector2.get(1), 0); |
| 65 | CHECK_EQ(vector2.get(99), 0); |
| 66 | CHECK_EQ(vector2.get(100), 1); |
| 67 | } |
| 68 | |
| 69 | TEST(Clock, ManyThreads) { |
| 70 | ScopedInRtl in_rtl; |
| 71 | SyncClock chunked; |
| 72 | for (int i = 0; i < 100; i++) { |
| 73 | ThreadClock vector; |
| 74 | vector.tick(i); |
| 75 | vector.release(&chunked); |
| 76 | CHECK_EQ(chunked.size(), i + 1); |
| 77 | vector.acquire(&chunked); |
| 78 | CHECK_EQ(vector.size(), i + 1); |
| 79 | } |
| 80 | ThreadClock vector; |
| 81 | vector.acquire(&chunked); |
| 82 | CHECK_EQ(vector.size(), 100); |
| 83 | for (int i = 0; i < 100; i++) |
| 84 | CHECK_EQ(vector.get(i), 1); |
| 85 | } |
| 86 | |
| 87 | TEST(Clock, DifferentSizes) { |
| 88 | ScopedInRtl in_rtl; |
| 89 | { |
| 90 | ThreadClock vector1; |
| 91 | vector1.tick(10); |
| 92 | ThreadClock vector2; |
| 93 | vector2.tick(20); |
| 94 | { |
| 95 | SyncClock chunked; |
| 96 | vector1.release(&chunked); |
| 97 | CHECK_EQ(chunked.size(), 11); |
| 98 | vector2.release(&chunked); |
| 99 | CHECK_EQ(chunked.size(), 21); |
| 100 | } |
| 101 | { |
| 102 | SyncClock chunked; |
| 103 | vector2.release(&chunked); |
| 104 | CHECK_EQ(chunked.size(), 21); |
| 105 | vector1.release(&chunked); |
| 106 | CHECK_EQ(chunked.size(), 21); |
| 107 | } |
| 108 | { |
| 109 | SyncClock chunked; |
| 110 | vector1.release(&chunked); |
| 111 | vector2.acquire(&chunked); |
| 112 | CHECK_EQ(vector2.size(), 21); |
| 113 | } |
| 114 | { |
| 115 | SyncClock chunked; |
| 116 | vector2.release(&chunked); |
| 117 | vector1.acquire(&chunked); |
| 118 | CHECK_EQ(vector1.size(), 21); |
| 119 | } |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | } // namespace __tsan |