2012-01-17 10:29:24 +00:00
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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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2011-10-05 05:20:07 +00:00
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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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2015-01-15 02:30:07 +00:00
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#ifndef VM_OS_THREAD_WIN_H_
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#define VM_OS_THREAD_WIN_H_
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2011-10-05 05:20:07 +00:00
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2015-01-15 02:30:07 +00:00
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#if !defined(VM_OS_THREAD_H_)
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#error Do not include os_thread_win.h directly; use os_thread.h instead.
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2012-01-19 13:37:26 +00:00
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#endif
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2012-02-07 09:31:51 +00:00
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#include "platform/assert.h"
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2012-01-17 10:29:24 +00:00
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#include "platform/globals.h"
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2011-10-05 05:20:07 +00:00
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2015-10-16 19:49:22 +00:00
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#include "vm/allocation.h"
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2011-10-05 05:20:07 +00:00
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namespace dart {
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2012-02-07 09:18:22 +00:00
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typedef DWORD ThreadLocalKey;
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2014-05-22 15:12:09 +00:00
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typedef DWORD ThreadId;
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2015-09-15 19:49:52 +00:00
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typedef DWORD ThreadJoinId;
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2012-02-07 09:18:22 +00:00
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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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2015-01-15 02:45:51 +00:00
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friend class OSThread;
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2013-11-19 18:26:10 +00:00
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friend unsigned int __stdcall ThreadEntry(void* data_ptr);
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2012-02-07 09:18:22 +00:00
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DISALLOW_ALLOCATION();
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DISALLOW_COPY_AND_ASSIGN(ThreadInlineImpl);
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};
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2011-10-05 05:20:07 +00:00
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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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2012-02-23 15:24:18 +00:00
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class MonitorWaitData {
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2013-03-13 11:11:38 +00:00
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public:
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static void ThreadExit();
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2012-02-23 15:24:18 +00:00
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private:
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explicit MonitorWaitData(HANDLE event) : event_(event), next_(NULL) {}
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2013-03-13 11:11:38 +00:00
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~MonitorWaitData() {
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CloseHandle(event_);
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ASSERT(next_ == NULL);
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}
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2012-02-23 15:24:18 +00:00
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// ThreadLocalKey used to fetch and store the MonitorWaitData object
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// for a given thread.
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static ThreadLocalKey monitor_wait_data_key_;
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// Auto-reset event used for waiting.
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HANDLE event_;
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// Link to next element in the singly-linked list of waiters.
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MonitorWaitData* next_;
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friend class Monitor;
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friend class MonitorData;
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2013-11-19 18:26:10 +00:00
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friend class OS;
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2012-02-23 15:24:18 +00:00
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DISALLOW_COPY_AND_ASSIGN(MonitorWaitData);
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};
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2011-10-05 05:20:07 +00:00
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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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2012-02-23 15:24:18 +00:00
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// Helper methods to manipulate the list of waiters for this
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// monitor.
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void AddWaiter(MonitorWaitData* wait_data);
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void RemoveWaiter(MonitorWaitData* wait_data);
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void SignalAndRemoveFirstWaiter();
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void SignalAndRemoveAllWaiters();
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2013-11-19 18:26:10 +00:00
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static MonitorWaitData* GetMonitorWaitDataForThread();
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2012-02-23 15:24:18 +00:00
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// The external critical section for the monitor.
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2011-10-05 05:20:07 +00:00
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CRITICAL_SECTION cs_;
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2012-02-10 10:50:25 +00:00
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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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2012-02-23 15:24:18 +00:00
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// Singly-linked list of event objects, one for each thread waiting
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// on this monitor. New waiters are added at the end of the list.
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// Notify signals the first element of the list (FIFO
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// order). NotifyAll, signals all the elements of the list.
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2012-02-10 10:50:25 +00:00
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CRITICAL_SECTION waiters_cs_;
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2012-02-23 15:24:18 +00:00
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MonitorWaitData* waiters_head_;
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MonitorWaitData* waiters_tail_;
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2011-10-05 05:20:07 +00:00
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friend class Monitor;
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2013-11-19 18:26:10 +00:00
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friend class OS;
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friend unsigned int __stdcall ThreadEntry(void* data_ptr);
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2011-10-05 05:20:07 +00:00
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DISALLOW_ALLOCATION();
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DISALLOW_COPY_AND_ASSIGN(MonitorData);
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};
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2015-10-16 17:00:44 +00:00
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typedef void (*ThreadDestructor) (void* parameter);
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class ThreadLocalEntry {
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public:
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ThreadLocalEntry(ThreadLocalKey key, ThreadDestructor destructor)
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: key_(key),
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destructor_(destructor) {
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}
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ThreadLocalKey key() const {
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return key_;
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}
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ThreadDestructor destructor() const {
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return destructor_;
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}
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private:
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ThreadLocalKey key_;
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ThreadDestructor destructor_;
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2015-10-16 17:21:04 +00:00
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DISALLOW_ALLOCATION();
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2015-10-16 17:00:44 +00:00
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};
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template<typename T>
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class MallocGrowableArray;
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class ThreadLocalData : public AllStatic {
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2015-10-16 20:11:46 +00:00
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public:
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static void RunDestructors();
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2015-10-16 17:00:44 +00:00
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private:
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static void AddThreadLocal(ThreadLocalKey key, ThreadDestructor destructor);
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static void RemoveThreadLocal(ThreadLocalKey key);
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static Mutex* mutex_;
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static MallocGrowableArray<ThreadLocalEntry>* thread_locals_;
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static void InitOnce();
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static void Shutdown();
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friend class OS;
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friend class OSThread;
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};
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2011-10-05 05:20:07 +00:00
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} // namespace dart
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2015-01-15 02:30:07 +00:00
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#endif // VM_OS_THREAD_WIN_H_
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