Migrate test-semaphore to base-unittests.

test/cctest/test-semaphore.cc

-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#include <stdlib.h>
-
-#include "src/v8.h"
-
-#include "src/base/platform/platform.h"
-#include "test/cctest/cctest.h"
-
-
-using namespace ::v8::internal;
-
-
-class WaitAndSignalThread V8_FINAL : public v8::base::Thread {
- public:
-  explicit WaitAndSignalThread(v8::base::Semaphore* semaphore)
-      : Thread(Options("WaitAndSignalThread")), semaphore_(semaphore) {}
-  virtual ~WaitAndSignalThread() {}
-
-  virtual void Run() V8_OVERRIDE {
-    for (int n = 0; n < 1000; ++n) {
-      semaphore_->Wait();
-      bool result =
-          semaphore_->WaitFor(v8::base::TimeDelta::FromMicroseconds(1));
-      DCHECK(!result);
-      USE(result);
-      semaphore_->Signal();
-    }
-  }
-
- private:
-  v8::base::Semaphore* semaphore_;
-};
-
-
-TEST(WaitAndSignal) {
-  v8::base::Semaphore semaphore(0);
-  WaitAndSignalThread t1(&semaphore);
-  WaitAndSignalThread t2(&semaphore);
-
-  t1.Start();
-  t2.Start();
-
-  // Make something available.
-  semaphore.Signal();
-
-  t1.Join();
-  t2.Join();
-
-  semaphore.Wait();
-
-  bool result = semaphore.WaitFor(v8::base::TimeDelta::FromMicroseconds(1));
-  DCHECK(!result);
-  USE(result);
-}
-
-
-TEST(WaitFor) {
-  bool ok;
-  v8::base::Semaphore semaphore(0);
-
-  // Semaphore not signalled - timeout.
-  ok = semaphore.WaitFor(v8::base::TimeDelta::FromMicroseconds(0));
-  CHECK(!ok);
-  ok = semaphore.WaitFor(v8::base::TimeDelta::FromMicroseconds(100));
-  CHECK(!ok);
-  ok = semaphore.WaitFor(v8::base::TimeDelta::FromMicroseconds(1000));
-  CHECK(!ok);
-
-  // Semaphore signalled - no timeout.
-  semaphore.Signal();
-  ok = semaphore.WaitFor(v8::base::TimeDelta::FromMicroseconds(0));
-  CHECK(ok);
-  semaphore.Signal();
-  ok = semaphore.WaitFor(v8::base::TimeDelta::FromMicroseconds(100));
-  CHECK(ok);
-  semaphore.Signal();
-  ok = semaphore.WaitFor(v8::base::TimeDelta::FromMicroseconds(1000));
-  CHECK(ok);
-}
-
-
-static const char alphabet[] = "XKOAD";
-static const int kAlphabetSize = sizeof(alphabet) - 1;
-static const int kBufferSize = 4096;  // GCD(buffer size, alphabet size) = 1
-static char buffer[kBufferSize];
-static const int kDataSize = kBufferSize * kAlphabetSize * 10;
-
-static v8::base::Semaphore free_space(kBufferSize);
-static v8::base::Semaphore used_space(0);
-
-
-class ProducerThread V8_FINAL : public v8::base::Thread {
- public:
-  ProducerThread() : Thread(Options("ProducerThread")) {}
-  virtual ~ProducerThread() {}
-
-  virtual void Run() V8_OVERRIDE {
-    for (int n = 0; n < kDataSize; ++n) {
-      free_space.Wait();
-      buffer[n % kBufferSize] = alphabet[n % kAlphabetSize];
-      used_space.Signal();
-    }
-  }
-};
-
-
-class ConsumerThread V8_FINAL : public v8::base::Thread {
- public:
-  ConsumerThread() : Thread(Options("ConsumerThread")) {}
-  virtual ~ConsumerThread() {}
-
-  virtual void Run() V8_OVERRIDE {
-    for (int n = 0; n < kDataSize; ++n) {
-      used_space.Wait();
-      DCHECK_EQ(static_cast<int>(alphabet[n % kAlphabetSize]),
-                static_cast<int>(buffer[n % kBufferSize]));
-      free_space.Signal();
-    }
-  }
-};
-
-
-TEST(ProducerConsumer) {
-  ProducerThread producer_thread;
-  ConsumerThread consumer_thread;
-  producer_thread.Start();
-  consumer_thread.Start();
-  producer_thread.Join();
-  consumer_thread.Join();
-}