Move Mutex and Monitor from vm/ to platform/

runtime/vm/thread_macos.cc

 // 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 <sys/errno.h>
 
 #include "platform/assert.h"
 #include "vm/thread.h"
 
 namespace dart {
@@ skipping 68 matching lines @@
   data_.tid_ = tid;
 
   result = pthread_attr_destroy(&attr);
   VALIDATE_PTHREAD_RESULT(result);
 }
 
 
 Thread::~Thread() {
 }
 
-
-Mutex::Mutex() {
-  pthread_mutexattr_t attr;
-  int result = pthread_mutexattr_init(&attr);
-  VALIDATE_PTHREAD_RESULT(result);
-
-#if defined(DEBUG)
-  result = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
-  VALIDATE_PTHREAD_RESULT(result);
-#endif  // defined(DEBUG)
-
-  result = pthread_mutex_init(data_.mutex(), &attr);
-  // Verify that creating a pthread_mutex succeeded.
-  VALIDATE_PTHREAD_RESULT(result);
-
-  result = pthread_mutexattr_destroy(&attr);
-  VALIDATE_PTHREAD_RESULT(result);
-}
-
-
-Mutex::~Mutex() {
-  int result = pthread_mutex_destroy(data_.mutex());
-  // Verify that the pthread_mutex was destroyed.
-  VALIDATE_PTHREAD_RESULT(result);
-}
-
-
-void Mutex::Lock() {
-  int result = pthread_mutex_lock(data_.mutex());
-  // Specifically check for dead lock to help debugging.
-  ASSERT(result != EDEADLK);
-  ASSERT(result == 0);  // Verify no other errors.
-  // TODO(iposva): Do we need to track lock owners?
-}
-
-
-bool Mutex::TryLock() {
-  int result = pthread_mutex_trylock(data_.mutex());
-  // Return false if the lock is busy and locking failed.
-  if ((result == EBUSY) || (result == EDEADLK)) {
-    return false;
-  }
-  ASSERT(result == 0);  // Verify no other errors.
-  // TODO(iposva): Do we need to track lock owners?
-  return true;
-}
-
-
-void Mutex::Unlock() {
-  // TODO(iposva): Do we need to track lock owners?
-  int result = pthread_mutex_unlock(data_.mutex());
-  // Specifically check for wrong thread unlocking to aid debugging.
-  ASSERT(result != EPERM);
-  ASSERT(result == 0);  // Verify no other errors.
-}
-
-
-Monitor::Monitor() {
-  pthread_mutexattr_t attr;
-  int result = pthread_mutexattr_init(&attr);
-  VALIDATE_PTHREAD_RESULT(result);
-
-#if defined(DEBUG)
-  result = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
-  VALIDATE_PTHREAD_RESULT(result);
-#endif  // defined(DEBUG)
-
-  result = pthread_mutex_init(data_.mutex(), &attr);
-  VALIDATE_PTHREAD_RESULT(result);
-
-  result = pthread_mutexattr_destroy(&attr);
-  VALIDATE_PTHREAD_RESULT(result);
-
-  result = pthread_cond_init(data_.cond(), NULL);
-  VALIDATE_PTHREAD_RESULT(result);
-}
-
-
-Monitor::~Monitor() {
-  int result = pthread_mutex_destroy(data_.mutex());
-  VALIDATE_PTHREAD_RESULT(result);
-
-  result = pthread_cond_destroy(data_.cond());
-  VALIDATE_PTHREAD_RESULT(result);
-}
-
-
-void Monitor::Enter() {
-  int result = pthread_mutex_lock(data_.mutex());
-  VALIDATE_PTHREAD_RESULT(result);
-  // TODO(iposva): Do we need to track lock owners?
-}
-
-
-void Monitor::Exit() {
-  // TODO(iposva): Do we need to track lock owners?
-  int result = pthread_mutex_unlock(data_.mutex());
-  VALIDATE_PTHREAD_RESULT(result);
-}
-
-
-Monitor::WaitResult Monitor::Wait(int64_t millis) {
-  // TODO(iposva): Do we need to track lock owners?
-  Monitor::WaitResult retval = kNotified;
-  if (millis == 0) {
-    // Wait forever.
-    int result = pthread_cond_wait(data_.cond(), data_.mutex());
-    VALIDATE_PTHREAD_RESULT(result);
-  } else {
-    struct timespec ts;
-    int64_t secs = millis / 1000;
-    int64_t nanos = (millis - (secs * 1000)) * 1000000;
-    ts.tv_sec = secs;
-    ts.tv_nsec = nanos;
-    int result = pthread_cond_timedwait_relative_np(data_.cond(),
-                                                    data_.mutex(),
-                                                    &ts);
-    ASSERT((result == 0) || (result == ETIMEDOUT));
-    if (result == ETIMEDOUT) {
-      retval = kTimedOut;
-    }
-  }
-  return retval;
-}
-
-
-void Monitor::Notify() {
-  // TODO(iposva): Do we need to track lock owners?
-  int result = pthread_cond_signal(data_.cond());
-  VALIDATE_PTHREAD_RESULT(result);
-}
-
-
-void Monitor::NotifyAll() {
-  // TODO(iposva): Do we need to track lock owners?
-  int result = pthread_cond_broadcast(data_.cond());
-  VALIDATE_PTHREAD_RESULT(result);
-}
-
 }  // namespace dart