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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/common/net/thread_blocker.h" | |
| 6 | |
| 7 #include "base/basictypes.h" | |
| 8 #include "base/lock.h" | |
| 9 #include "base/logging.h" | |
| 10 #include "base/message_loop.h" | |
| 11 #include "base/scoped_ptr.h" | |
| 12 #include "base/task.h" | |
| 13 #include "base/thread.h" | |
| 14 #include "testing/gtest/include/gtest/gtest.h" | |
| 15 | |
| 16 namespace chrome_common_net { | |
| 17 class Flag; | |
| 18 }; // namespace chrome_common_net | |
| 19 | |
| 20 // We manage the lifetime of chrome_common_net::Flag ourselves. | |
| 21 DISABLE_RUNNABLE_METHOD_REFCOUNT(chrome_common_net::Flag); | |
| 22 | |
| 23 namespace chrome_common_net { | |
| 24 | |
| 25 // Utility class that is basically just a thread-safe boolean. | |
| 26 class Flag { | |
| 27 public: | |
| 28 Flag() : flag_(false) {} | |
| 29 | |
| 30 bool IsSet() const { | |
| 31 AutoLock auto_lock(lock_); | |
| 32 return flag_; | |
| 33 } | |
| 34 | |
| 35 void Set() { | |
| 36 AutoLock auto_lock(lock_); | |
| 37 flag_ = true; | |
| 38 } | |
| 39 | |
| 40 void Unset() { | |
| 41 AutoLock auto_lock(lock_); | |
| 42 flag_ = false; | |
| 43 } | |
| 44 | |
| 45 private: | |
| 46 mutable Lock lock_; | |
| 47 bool flag_; | |
| 48 | |
| 49 DISALLOW_COPY_AND_ASSIGN(Flag); | |
| 50 }; | |
| 51 | |
| 52 namespace { | |
| 53 | |
| 54 class ThreadBlockerTest : public testing::Test { | |
| 55 protected: | |
| 56 ThreadBlockerTest() : target_thread_("Target Thread") {} | |
| 57 | |
| 58 virtual ~ThreadBlockerTest() { | |
| 59 CHECK(!thread_blocker_.get()); | |
| 60 } | |
| 61 | |
| 62 virtual void SetUp() { | |
| 63 CHECK(target_thread_.Start()); | |
| 64 thread_blocker_.reset(new ThreadBlocker(&target_thread_)); | |
| 65 } | |
| 66 | |
| 67 virtual void TearDown() { | |
| 68 target_thread_.Stop(); | |
| 69 thread_blocker_.reset(); | |
| 70 } | |
| 71 | |
| 72 base::Thread target_thread_; | |
| 73 scoped_ptr<ThreadBlocker> thread_blocker_; | |
| 74 Flag flag_; | |
| 75 | |
| 76 private: | |
| 77 DISALLOW_COPY_AND_ASSIGN(ThreadBlockerTest); | |
| 78 }; | |
| 79 | |
| 80 TEST_F(ThreadBlockerTest, Basic) { | |
| 81 thread_blocker_->Block(); | |
| 82 target_thread_.message_loop()->PostTask( | |
| 83 FROM_HERE, NewRunnableMethod(&flag_, &Flag::Set)); | |
| 84 EXPECT_FALSE(flag_.IsSet()); | |
| 85 thread_blocker_->Unblock(); | |
| 86 // Need to block again to make sure this thread waits for the posted | |
| 87 // method to run. | |
| 88 thread_blocker_->Block(); | |
| 89 EXPECT_TRUE(flag_.IsSet()); | |
| 90 thread_blocker_->Unblock(); | |
| 91 } | |
| 92 | |
| 93 TEST_F(ThreadBlockerTest, SetUnset) { | |
| 94 thread_blocker_->Block(); | |
| 95 target_thread_.message_loop()->PostTask( | |
| 96 FROM_HERE, NewRunnableMethod(&flag_, &Flag::Set)); | |
| 97 target_thread_.message_loop()->PostTask( | |
| 98 FROM_HERE, NewRunnableMethod(&flag_, &Flag::Unset)); | |
| 99 EXPECT_FALSE(flag_.IsSet()); | |
| 100 thread_blocker_->Unblock(); | |
| 101 // Need to block again here too. | |
| 102 thread_blocker_->Block(); | |
| 103 EXPECT_FALSE(flag_.IsSet()); | |
| 104 thread_blocker_->Unblock(); | |
| 105 } | |
| 106 | |
| 107 } // namespace | |
| 108 | |
| 109 } // namespace chrome_common_net | |
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Chromium Code Reviews
Issue 2802015:
Massively simplify the NetworkChangeNotifier infrastructure:... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/