os_thread_win.h

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// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
 
#ifndef RUNTIME_VM_OS_THREAD_WIN_H_
#define RUNTIME_VM_OS_THREAD_WIN_H_
 
#if !defined(RUNTIME_VM_OS_THREAD_H_)
#error Do not include os_thread_win.h directly; use os_thread.h instead.
#endif
 
#include "platform/assert.h"
#include "platform/globals.h"
 
#include "vm/allocation.h"
 
namespace dart {
 
typedef DWORD ThreadLocalKey;
typedef DWORD ThreadId;
typedef HANDLE ThreadJoinId;
 
static const ThreadLocalKey kUnsetThreadLocalKey = TLS_OUT_OF_INDEXES;
 
class ThreadInlineImpl {
 private:
  ThreadInlineImpl() {}
  ~ThreadInlineImpl() {}
 
  static uword GetThreadLocal(ThreadLocalKey key) {
    ASSERT(key != kUnsetThreadLocalKey);
    return reinterpret_cast<uword>(TlsGetValue(key));
  }
 
  friend class OSThread;
  friend unsigned int __stdcall ThreadEntry(void* data_ptr);
 
  DISALLOW_ALLOCATION();
  DISALLOW_COPY_AND_ASSIGN(ThreadInlineImpl);
};
 
class MutexData {
 private:
  MutexData() {}
  ~MutexData() {}
 
  SRWLOCK lock_;
 
  friend class Mutex;
 
  DISALLOW_ALLOCATION();
  DISALLOW_COPY_AND_ASSIGN(MutexData);
};
 
class MonitorData {
 private:
  MonitorData() {}
  ~MonitorData() {}
 
  SRWLOCK lock_;
  CONDITION_VARIABLE cond_;
 
  friend class Monitor;
 
  DISALLOW_ALLOCATION();
  DISALLOW_COPY_AND_ASSIGN(MonitorData);
};
 
typedef void (*ThreadDestructor)(void* parameter);
 
class ThreadLocalEntry {
 public:
  ThreadLocalEntry(ThreadLocalKey key, ThreadDestructor destructor)
      : key_(key), destructor_(destructor) {}
 
  ThreadLocalKey key() const { return key_; }
 
  ThreadDestructor destructor() const { return destructor_; }
 
 private:
  ThreadLocalKey key_;
  ThreadDestructor destructor_;
 
  DISALLOW_ALLOCATION();
};
 
template <typename T>
class MallocGrowableArray;
 
class ThreadLocalData : public AllStatic {
 public:
  static void RunDestructors();
 
 private:
  static void AddThreadLocal(ThreadLocalKey key, ThreadDestructor destructor);
  static void RemoveThreadLocal(ThreadLocalKey key);
 
  static Mutex* mutex_;
  static MallocGrowableArray<ThreadLocalEntry>* thread_locals_;
 
  static void Init();
  static void Cleanup();
 
  friend class OS;
  friend class OSThread;
};
 
}  // namespace dart
 
#endif  // RUNTIME_VM_OS_THREAD_WIN_H_