Move Mutex and Monitor from vm/ to platform/

runtime/vm/thread_win.cc

Index: runtime/vm/thread_win.cc
diff --git a/runtime/vm/thread_win.cc b/runtime/vm/thread_win.cc
deleted file mode 100644
index 0e5f5c1a79b6f909559ac4ad91d71221903e50d6..0000000000000000000000000000000000000000
--- a/runtime/vm/thread_win.cc
+++ /dev/null
@@ -1,172 +0,0 @@
-// 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.
-
-#include "vm/thread.h"
-
-#include <process.h>
-
-#include "platform/assert.h"
-
-namespace dart {
-
-class ThreadStartData {
- public:
-  ThreadStartData(Thread::ThreadStartFunction function,
-                  uword parameter,
-                  Thread* thread)
-      : function_(function), parameter_(parameter), thread_(thread) {}
-
-  Thread::ThreadStartFunction function() const { return function_; }
-  uword parameter() const { return parameter_; }
-  Thread* thread() const { return thread_; }
-
- private:
-  Thread::ThreadStartFunction function_;
-  uword parameter_;
-  Thread* thread_;
-
-  DISALLOW_COPY_AND_ASSIGN(ThreadStartData);
-};
-
-
-// Dispatch to the thread start function provided by the caller. This trampoline
-// is used to ensure that the thread is properly destroyed if the thread just
-// exits.
-static unsigned int __stdcall ThreadEntry(void* data_ptr) {
-  ThreadStartData* data =  reinterpret_cast<ThreadStartData*>(data_ptr);
-
-  Thread::ThreadStartFunction function = data->function();
-  uword parameter = data->parameter();
-  Thread* thread = data->thread();
-  delete data;
-
-  // Call the supplied thread start function handing it its parameters.
-  function(parameter);
-
-  // When the function returns here, make sure that the thread is deleted.
-  delete thread;
-
-  return 0;
-}
-
-
-Thread::Thread(ThreadStartFunction function, uword parameter) {
-  ThreadStartData* start_data = new ThreadStartData(function, parameter, this);
-  uint32_t tid;
-  data_.thread_handle_ =
-    _beginthreadex(NULL, 64 * KB, ThreadEntry, start_data, 0, &tid);
-  if (data_.thread_handle_ == -1) {
-    FATAL("Thread creation failed");
-  }
-  data_.tid_ = tid;
-}
-
-
-Thread::~Thread() {
-  CloseHandle(reinterpret_cast<HANDLE>(data_.thread_handle_));
-}
-
-
-Mutex::Mutex() {
-  // Allocate unnamed semaphore with initial count 1 and max count 1.
-  data_.semaphore_ = CreateSemaphore(NULL, 1, 1, NULL);
-  if (data_.semaphore_ == NULL) {
-    FATAL("Mutex allocation failed");
-  }
-}
-
-
-Mutex::~Mutex() {
-  CloseHandle(data_.semaphore_);
-}
-
-
-void Mutex::Lock() {
-  DWORD result = WaitForSingleObject(data_.semaphore_, INFINITE);
-  if (result != WAIT_OBJECT_0) {
-    FATAL("Mutex lock failed");
-  }
-}
-
-
-bool Mutex::TryLock() {
-  // Attempt to pass the semaphore but return immediately.
-  DWORD result = WaitForSingleObject(data_.semaphore_, 0);
-  if (result == WAIT_OBJECT_0) {
-    return true;
-  }
-  if (result == WAIT_ABANDONED || result == WAIT_FAILED) {
-    FATAL("Mutex try lock failed");
-  }
-  ASSERT(result == WAIT_TIMEOUT);
-  return false;
-}
-
-
-void Mutex::Unlock() {
-  BOOL result = ReleaseSemaphore(data_.semaphore_, 1, NULL);
-  if (result == 0) {
-    FATAL("Mutex unlock failed");
-  }
-}
-
-
-Monitor::Monitor() {
-  InitializeCriticalSection(&data_.cs_);
-  InitializeConditionVariable(&data_.cond_);
-}
-
-
-Monitor::~Monitor() {
-  DeleteCriticalSection(&data_.cs_);
-}
-
-
-void Monitor::Enter() {
-  EnterCriticalSection(&data_.cs_);
-}
-
-
-void Monitor::Exit() {
-  LeaveCriticalSection(&data_.cs_);
-}
-
-
-Monitor::WaitResult Monitor::Wait(int64_t millis) {
-  Monitor::WaitResult retval = kNotified;
-  if (millis == 0) {
-    // Wait forever.
-    BOOL result = SleepConditionVariableCS(&data_.cond_, &data_.cs_, INFINITE);
-    if (result == 0) {
-      FATAL("Monitor::Wait failed");
-    }
-  } else {
-    BOOL result = SleepConditionVariableCS(&data_.cond_, &data_.cs_, millis);
-    if (result == 0) {
-      DWORD error = GetLastError();
-      // Windows condition variables should set error to WAIT_TIMEOUT
-      // but occationally sets it to ERROR_TIMEOUT for timeouts. On
-      // Windows 7 it seems to pretty consistently set it to
-      // ERROR_TIMEOUT.
-      if ((error == WAIT_TIMEOUT) || (error == ERROR_TIMEOUT)) {
-        retval = kTimedOut;
-      } else {
-        FATAL("Monitor::Wait failed");
-      }
-    }
-  }
-  return retval;
-}
-
-
-void Monitor::Notify() {
-  WakeConditionVariable(&data_.cond_);
-}
-
-
-void Monitor::NotifyAll() {
-  WakeAllConditionVariable(&data_.cond_);
-}
-
-}  // namespace dart