Experimental parser: merge r19949

src/platform-posix.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 336 matching lines @@
   *usecs = usage.ru_utime.tv_usec;
   return 0;
 }
 
 
 double OS::TimeCurrentMillis() {
   return Time::Now().ToJsTime();
 }
 
 
-double OS::DaylightSavingsOffset(double time) {
+class TimezoneCache {};
+
+
+TimezoneCache* OS::CreateTimezoneCache() {
+  return NULL;
+}
+
+
+void OS::DisposeTimezoneCache(TimezoneCache* cache) {
+  ASSERT(cache == NULL);
+}
+
+
+void OS::ClearTimezoneCache(TimezoneCache* cache) {
+  ASSERT(cache == NULL);
+}
+
+
+double OS::DaylightSavingsOffset(double time, TimezoneCache*) {
   if (std::isnan(time)) return nan_value();
   time_t tv = static_cast<time_t>(std::floor(time/msPerSecond));
   struct tm* t = localtime(&tv);
   if (NULL == t) return nan_value();
   return t->tm_isdst > 0 ? 3600 * msPerSecond : 0;
 }
 
 
 int OS::GetLastError() {
   return errno;
@@ skipping 187 matching lines @@
 
 
 // ----------------------------------------------------------------------------
 // POSIX thread support.
 //
 
 class Thread::PlatformData : public Malloced {
  public:
   PlatformData() : thread_(kNoThread) {}
   pthread_t thread_;  // Thread handle for pthread.
+  // Synchronizes thread creation
+  Mutex thread_creation_mutex_;
 };
 
 Thread::Thread(const Options& options)
     : data_(new PlatformData),
       stack_size_(options.stack_size()),
       start_semaphore_(NULL) {
   if (stack_size_ > 0 && stack_size_ < PTHREAD_STACK_MIN) {
     stack_size_ = PTHREAD_STACK_MIN;
   }
   set_name(options.name());
@@ skipping 27 matching lines @@
 #elif defined(PR_SET_NAME)
   prctl(PR_SET_NAME,
         reinterpret_cast<unsigned long>(name),  // NOLINT
         0, 0, 0);
 #endif
 }
 
 
 static void* ThreadEntry(void* arg) {
   Thread* thread = reinterpret_cast<Thread*>(arg);
-  // This is also initialized by the first argument to pthread_create() but we
-  // don't know which thread will run first (the original thread or the new
-  // one) so we initialize it here too.
-  thread->data()->thread_ = pthread_self();
+  // We take the lock here to make sure that pthread_create finished first since
+  // we don't know which thread will run first (the original thread or the new
+  // one).
+  { LockGuard<Mutex> lock_guard(&thread->data()->thread_creation_mutex_); }
   SetThreadName(thread->name());
   ASSERT(thread->data()->thread_ != kNoThread);
   thread->NotifyStartedAndRun();
   return NULL;
 }
 
 
 void Thread::set_name(const char* name) {
   strncpy(name_, name, sizeof(name_));
   name_[sizeof(name_) - 1] = '\0';
 }
 
 
 void Thread::Start() {
   int result;
   pthread_attr_t attr;
   memset(&attr, 0, sizeof(attr));
   result = pthread_attr_init(&attr);
   ASSERT_EQ(0, result);
   // Native client uses default stack size.
 #if !V8_OS_NACL
   if (stack_size_ > 0) {
     result = pthread_attr_setstacksize(&attr, static_cast<size_t>(stack_size_));
     ASSERT_EQ(0, result);
   }
 #endif
-  result = pthread_create(&data_->thread_, &attr, ThreadEntry, this);
+  {
+    LockGuard<Mutex> lock_guard(&data_->thread_creation_mutex_);
+    result = pthread_create(&data_->thread_, &attr, ThreadEntry, this);
+  }
   ASSERT_EQ(0, result);
   result = pthread_attr_destroy(&attr);
   ASSERT_EQ(0, result);
   ASSERT(data_->thread_ != kNoThread);
   USE(result);
 }
 
 
 void Thread::Join() {
   pthread_join(data_->thread_, NULL);
@@ skipping 125 matching lines @@
 
 void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
   pthread_key_t pthread_key = LocalKeyToPthreadKey(key);
   int result = pthread_setspecific(pthread_key, value);
   ASSERT_EQ(0, result);
   USE(result);
 }
 
 
 } }  // namespace v8::internal