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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/synchronization/atomic_flag.h" | 5 #include "base/synchronization/atomic_flag.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/single_thread_task_runner.h" | 9 #include "base/single_thread_task_runner.h" |
10 #include "base/synchronization/waitable_event.h" | 10 #include "base/synchronization/waitable_event.h" |
11 #include "base/test/gtest_util.h" | 11 #include "base/test/gtest_util.h" |
12 #include "base/threading/platform_thread.h" | 12 #include "base/threading/platform_thread.h" |
13 #include "base/threading/thread.h" | 13 #include "base/threading/thread.h" |
14 #include "build/build_config.h" | 14 #include "build/build_config.h" |
15 #include "testing/gtest/include/gtest/gtest.h" | 15 #include "testing/gtest/include/gtest/gtest.h" |
16 | 16 |
17 namespace base { | 17 namespace base { |
18 | 18 |
19 namespace { | 19 namespace { |
20 | 20 |
21 void ExpectSetFlagDeath(AtomicFlag* flag) { | 21 void ExpectSetFlagDeath(AtomicFlag* flag) { |
22 ASSERT_TRUE(flag); | 22 ASSERT_TRUE(flag); |
23 EXPECT_DCHECK_DEATH(flag->Set(), ""); | 23 EXPECT_DCHECK_DEATH(flag->Set()); |
24 } | 24 } |
25 | 25 |
26 // Busy waits (to explicitly avoid using synchronization constructs that would | 26 // Busy waits (to explicitly avoid using synchronization constructs that would |
27 // defeat the purpose of testing atomics) until |tested_flag| is set and then | 27 // defeat the purpose of testing atomics) until |tested_flag| is set and then |
28 // verifies that non-atomic |*expected_after_flag| is true and sets |*done_flag| | 28 // verifies that non-atomic |*expected_after_flag| is true and sets |*done_flag| |
29 // before returning if it's non-null. | 29 // before returning if it's non-null. |
30 void BusyWaitUntilFlagIsSet(AtomicFlag* tested_flag, bool* expected_after_flag, | 30 void BusyWaitUntilFlagIsSet(AtomicFlag* tested_flag, bool* expected_after_flag, |
31 AtomicFlag* done_flag) { | 31 AtomicFlag* done_flag) { |
32 while (!tested_flag->IsSet()) | 32 while (!tested_flag->IsSet()) |
33 PlatformThread::YieldCurrentThread(); | 33 PlatformThread::YieldCurrentThread(); |
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122 Thread t("AtomicFlagTest.SetOnDifferentThreadDeathTest"); | 122 Thread t("AtomicFlagTest.SetOnDifferentThreadDeathTest"); |
123 ASSERT_TRUE(t.Start()); | 123 ASSERT_TRUE(t.Start()); |
124 EXPECT_TRUE(t.WaitUntilThreadStarted()); | 124 EXPECT_TRUE(t.WaitUntilThreadStarted()); |
125 | 125 |
126 AtomicFlag flag; | 126 AtomicFlag flag; |
127 flag.Set(); | 127 flag.Set(); |
128 t.task_runner()->PostTask(FROM_HERE, Bind(&ExpectSetFlagDeath, &flag)); | 128 t.task_runner()->PostTask(FROM_HERE, Bind(&ExpectSetFlagDeath, &flag)); |
129 } | 129 } |
130 | 130 |
131 } // namespace base | 131 } // namespace base |
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