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Issue 277913002: Presubmit checks recover. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Rebasing Created 6 years, 7 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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30 #include "v8.h" 30 #include "v8.h"
31 31
32 #include "platform.h" 32 #include "platform.h"
33 #include "cctest.h" 33 #include "cctest.h"
34 34
35 35
36 using namespace ::v8::internal; 36 using namespace ::v8::internal;
37 37
38 38
39 class WaitAndSignalThread V8_FINAL : public Thread { 39 class WaitAndSignalThread V8_FINAL : public Thread {
40 public: 40 public:
41 explicit WaitAndSignalThread(Semaphore* semaphore) 41 explicit WaitAndSignalThread(Semaphore* semaphore)
42 : Thread("WaitAndSignalThread"), semaphore_(semaphore) {} 42 : Thread("WaitAndSignalThread"), semaphore_(semaphore) {}
43 virtual ~WaitAndSignalThread() {} 43 virtual ~WaitAndSignalThread() {}
44 44
45 virtual void Run() V8_OVERRIDE { 45 virtual void Run() V8_OVERRIDE {
46 for (int n = 0; n < 1000; ++n) { 46 for (int n = 0; n < 1000; ++n) {
47 semaphore_->Wait(); 47 semaphore_->Wait();
48 bool result = semaphore_->WaitFor(TimeDelta::FromMicroseconds(1)); 48 bool result = semaphore_->WaitFor(TimeDelta::FromMicroseconds(1));
49 ASSERT(!result); 49 ASSERT(!result);
50 USE(result); 50 USE(result);
51 semaphore_->Signal(); 51 semaphore_->Signal();
52 } 52 }
53 } 53 }
54 54
55 private: 55 private:
56 Semaphore* semaphore_; 56 Semaphore* semaphore_;
57 }; 57 };
58 58
59 59
60 TEST(WaitAndSignal) { 60 TEST(WaitAndSignal) {
61 Semaphore semaphore(0); 61 Semaphore semaphore(0);
62 WaitAndSignalThread t1(&semaphore); 62 WaitAndSignalThread t1(&semaphore);
63 WaitAndSignalThread t2(&semaphore); 63 WaitAndSignalThread t2(&semaphore);
64 64
65 t1.Start(); 65 t1.Start();
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108 static const int kAlphabetSize = sizeof(alphabet) - 1; 108 static const int kAlphabetSize = sizeof(alphabet) - 1;
109 static const int kBufferSize = 4096; // GCD(buffer size, alphabet size) = 1 109 static const int kBufferSize = 4096; // GCD(buffer size, alphabet size) = 1
110 static char buffer[kBufferSize]; 110 static char buffer[kBufferSize];
111 static const int kDataSize = kBufferSize * kAlphabetSize * 10; 111 static const int kDataSize = kBufferSize * kAlphabetSize * 10;
112 112
113 static Semaphore free_space(kBufferSize); 113 static Semaphore free_space(kBufferSize);
114 static Semaphore used_space(0); 114 static Semaphore used_space(0);
115 115
116 116
117 class ProducerThread V8_FINAL : public Thread { 117 class ProducerThread V8_FINAL : public Thread {
118 public: 118 public:
119 ProducerThread() : Thread("ProducerThread") {} 119 ProducerThread() : Thread("ProducerThread") {}
120 virtual ~ProducerThread() {} 120 virtual ~ProducerThread() {}
121 121
122 virtual void Run() V8_OVERRIDE { 122 virtual void Run() V8_OVERRIDE {
123 for (int n = 0; n < kDataSize; ++n) { 123 for (int n = 0; n < kDataSize; ++n) {
124 free_space.Wait(); 124 free_space.Wait();
125 buffer[n % kBufferSize] = alphabet[n % kAlphabetSize]; 125 buffer[n % kBufferSize] = alphabet[n % kAlphabetSize];
126 used_space.Signal(); 126 used_space.Signal();
127 } 127 }
128 } 128 }
129 }; 129 };
130 130
131 131
132 class ConsumerThread V8_FINAL : public Thread { 132 class ConsumerThread V8_FINAL : public Thread {
133 public: 133 public:
134 ConsumerThread() : Thread("ConsumerThread") {} 134 ConsumerThread() : Thread("ConsumerThread") {}
135 virtual ~ConsumerThread() {} 135 virtual ~ConsumerThread() {}
136 136
137 virtual void Run() V8_OVERRIDE { 137 virtual void Run() V8_OVERRIDE {
138 for (int n = 0; n < kDataSize; ++n) { 138 for (int n = 0; n < kDataSize; ++n) {
139 used_space.Wait(); 139 used_space.Wait();
140 ASSERT_EQ(static_cast<int>(alphabet[n % kAlphabetSize]), 140 ASSERT_EQ(static_cast<int>(alphabet[n % kAlphabetSize]),
141 static_cast<int>(buffer[n % kBufferSize])); 141 static_cast<int>(buffer[n % kBufferSize]));
142 free_space.Signal(); 142 free_space.Signal();
143 } 143 }
144 } 144 }
145 }; 145 };
146 146
147 147
148 TEST(ProducerConsumer) { 148 TEST(ProducerConsumer) {
149 ProducerThread producer_thread; 149 ProducerThread producer_thread;
150 ConsumerThread consumer_thread; 150 ConsumerThread consumer_thread;
151 producer_thread.Start(); 151 producer_thread.Start();
152 consumer_thread.Start(); 152 consumer_thread.Start();
153 producer_thread.Join(); 153 producer_thread.Join();
154 consumer_thread.Join(); 154 consumer_thread.Join();
155 } 155 }
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