ager@google.com
bbaf8a3665
ConditionVariable is only available since Vista so to support XP we need to implement this ourselves. R=asiva@google.com,sgjesse@google.com BUG= TEST= Review URL: https://chromiumcodereview.appspot.com//9361036 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4126 260f80e4-7a28-3924-810f-c04153c831b5
84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef PLATFORM_THREAD_WIN_H_
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#define PLATFORM_THREAD_WIN_H_
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#if !defined(PLATFORM_THREAD_H_)
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#error Do not include thread_win.h directly; use thread.h instead.
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#endif
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#include "platform/assert.h"
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#include "platform/globals.h"
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namespace dart {
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typedef DWORD ThreadLocalKey;
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class ThreadInlineImpl {
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private:
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ThreadInlineImpl() {}
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~ThreadInlineImpl() {}
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static uword GetThreadLocal(ThreadLocalKey key) {
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static ThreadLocalKey kUnsetThreadLocalKey = TLS_OUT_OF_INDEXES;
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ASSERT(key != kUnsetThreadLocalKey);
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return reinterpret_cast<uword>(TlsGetValue(key));
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}
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friend class Thread;
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DISALLOW_ALLOCATION();
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DISALLOW_COPY_AND_ASSIGN(ThreadInlineImpl);
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};
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class MutexData {
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private:
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MutexData() {}
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~MutexData() {}
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HANDLE semaphore_;
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friend class Mutex;
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DISALLOW_ALLOCATION();
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DISALLOW_COPY_AND_ASSIGN(MutexData);
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};
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class MonitorData {
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private:
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MonitorData() {}
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~MonitorData() {}
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CRITICAL_SECTION cs_;
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// Condition variables are only available since Windows Vista. To
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// support at least Windows XP, we implement our own condition
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// variables using SetEvent on Event objects.
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// The notify_event_ is an auto-reset event which means that
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// SetEvent only wakes up one waiter.
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HANDLE notify_event_;
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// The notify_all_event_ is a manual-reset event which means that
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// SetEvent wakes up all waiters.
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HANDLE notify_all_event_;
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// Counter with protection used to determine the right time to reset
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// the notify_all_event_.
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CRITICAL_SECTION waiters_cs_;
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intptr_t waiters_;
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friend class Monitor;
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DISALLOW_ALLOCATION();
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DISALLOW_COPY_AND_ASSIGN(MonitorData);
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};
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} // namespace dart
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#endif // PLATFORM_THREAD_WIN_H_
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