VM: Re-format to use at most one newline between functions

runtime/bin/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 "platform/globals.h"
 #if defined(HOST_OS_MACOS)
 
 #include "bin/thread.h"
 #include "bin/thread_macos.h"
 
@@ skipping 15 matching lines @@
 namespace bin {
 
 #define VALIDATE_PTHREAD_RESULT(result)                                        \
   if (result != 0) {                                                           \
     const int kBufferSize = 1024;                                              \
     char error_message[kBufferSize];                                           \
     Utils::StrError(result, error_message, kBufferSize);                       \
     FATAL2("pthread error: %d (%s)", result, error_message);                   \
   }
 
-
 #ifdef DEBUG
 #define RETURN_ON_PTHREAD_FAILURE(result)                                      \
   if (result != 0) {                                                           \
     const int kBufferSize = 1024;                                              \
     char error_message[kBufferSize];                                           \
     Utils::StrError(result, error_message, kBufferSize);                       \
     fprintf(stderr, "%s:%d: pthread error: %d (%s)\n", __FILE__, __LINE__,     \
             result, error_message);                                            \
     return result;                                                             \
   }
 #else
 #define RETURN_ON_PTHREAD_FAILURE(result)                                      \
   if (result != 0) {                                                           \
     return result;                                                             \
   }
 #endif
 
-
 class ThreadStartData {
  public:
   ThreadStartData(Thread::ThreadStartFunction function, uword parameter)
       : function_(function), parameter_(parameter) {}
 
   Thread::ThreadStartFunction function() const { return function_; }
   uword parameter() const { return parameter_; }
 
  private:
   Thread::ThreadStartFunction function_;
   uword parameter_;
 
   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 void* ThreadStart(void* data_ptr) {
   ThreadStartData* data = reinterpret_cast<ThreadStartData*>(data_ptr);
 
   Thread::ThreadStartFunction function = data->function();
   uword parameter = data->parameter();
   delete data;
 
   // Call the supplied thread start function handing it its parameters.
   function(parameter);
 
   return NULL;
 }
 
-
 int Thread::Start(ThreadStartFunction function, uword parameter) {
   pthread_attr_t attr;
   int result = pthread_attr_init(&attr);
   RETURN_ON_PTHREAD_FAILURE(result);
 
   result = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
   RETURN_ON_PTHREAD_FAILURE(result);
 
   result = pthread_attr_setstacksize(&attr, Thread::GetMaxStackSize());
   RETURN_ON_PTHREAD_FAILURE(result);
 
   ThreadStartData* data = new ThreadStartData(function, parameter);
 
   pthread_t tid;
   result = pthread_create(&tid, &attr, ThreadStart, data);
   RETURN_ON_PTHREAD_FAILURE(result);
 
   result = pthread_attr_destroy(&attr);
   RETURN_ON_PTHREAD_FAILURE(result);
 
   return 0;
 }
 
-
 const ThreadLocalKey Thread::kUnsetThreadLocalKey =
     static_cast<pthread_key_t>(-1);
 const ThreadId Thread::kInvalidThreadId = reinterpret_cast<ThreadId>(NULL);
 
 ThreadLocalKey Thread::CreateThreadLocal() {
   pthread_key_t key = kUnsetThreadLocalKey;
   int result = pthread_key_create(&key, NULL);
   VALIDATE_PTHREAD_RESULT(result);
   ASSERT(key != kUnsetThreadLocalKey);
   return key;
 }
 
-
 void Thread::DeleteThreadLocal(ThreadLocalKey key) {
   ASSERT(key != kUnsetThreadLocalKey);
   int result = pthread_key_delete(key);
   VALIDATE_PTHREAD_RESULT(result);
 }
 
-
 void Thread::SetThreadLocal(ThreadLocalKey key, uword value) {
   ASSERT(key != kUnsetThreadLocalKey);
   int result = pthread_setspecific(key, reinterpret_cast<void*>(value));
   VALIDATE_PTHREAD_RESULT(result);
 }
 
-
 intptr_t Thread::GetMaxStackSize() {
   const int kStackSize = (128 * kWordSize * KB);
   return kStackSize;
 }
 
-
 ThreadId Thread::GetCurrentThreadId() {
   return pthread_self();
 }
 
-
 intptr_t Thread::ThreadIdToIntPtr(ThreadId id) {
   ASSERT(sizeof(id) == sizeof(intptr_t));
   return reinterpret_cast<intptr_t>(id);
 }
 
-
 bool Thread::Compare(ThreadId a, ThreadId b) {
   return (pthread_equal(a, b) != 0);
 }
 
-
 void Thread::InitOnce() {
   // Nothing to be done.
 }
 
-
 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) {
   return WaitMicros(millis * kMicrosecondsPerMillisecond);
 }
 
-
 Monitor::WaitResult Monitor::WaitMicros(int64_t micros) {
   // TODO(iposva): Do we need to track lock owners?
   Monitor::WaitResult retval = kNotified;
   if (micros == kNoTimeout) {
     // Wait forever.
     int result = pthread_cond_wait(data_.cond(), data_.mutex());
     VALIDATE_PTHREAD_RESULT(result);
   } else {
     struct timespec ts;
     int64_t secs = micros / kMicrosecondsPerSecond;
     if (secs > kMaxInt32) {
       // Avoid truncation of overly large timeout values.
       secs = kMaxInt32;
     }
     int64_t nanos =
         (micros - (secs * kMicrosecondsPerSecond)) * kNanosecondsPerMicrosecond;
     ts.tv_sec = static_cast<int32_t>(secs);
     ts.tv_nsec = static_cast<long>(nanos);  // NOLINT (long used in timespec).
     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 bin
 }  // namespace dart
 
 #endif  // defined(HOST_OS_MACOS)