Avoid duplication of OS::Thread methods for every POSIX platform.

src/platform-openbsd.cc

Index: src/platform-openbsd.cc
diff --git a/src/platform-openbsd.cc b/src/platform-openbsd.cc
index fbd07c62f8d43c8383468e2d143aea5b725a0591..4340094f12986b36cd2b6e8fa69d7b1cb780777c 100644
--- a/src/platform-openbsd.cc
+++ b/src/platform-openbsd.cc
@@ -477,96 +477,6 @@ bool VirtualMemory::HasLazyCommits() {
 }
 
 
-class Thread::PlatformData : public Malloced {
- public:
-  PlatformData() : thread_(kNoThread) {}
-
-  pthread_t thread_;  // Thread handle for pthread.
-};
-
-Thread::Thread(const Options& options)
-    : data_(new PlatformData()),
-      stack_size_(options.stack_size()),
-      start_semaphore_(NULL) {
-  set_name(options.name());
-}
-
-
-Thread::~Thread() {
-  delete data_;
-}
-
-
-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.
-#ifdef PR_SET_NAME
-  prctl(PR_SET_NAME,
-        reinterpret_cast<unsigned long>(thread->name()),  // NOLINT
-        0, 0, 0);
-#endif
-  thread->data()->thread_ = pthread_self();
-  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() {
-  pthread_attr_t* attr_ptr = NULL;
-  pthread_attr_t attr;
-  if (stack_size_ > 0) {
-    pthread_attr_init(&attr);
-    pthread_attr_setstacksize(&attr, static_cast<size_t>(stack_size_));
-    attr_ptr = &attr;
-  }
-  pthread_create(&data_->thread_, attr_ptr, ThreadEntry, this);
-  ASSERT(data_->thread_ != kNoThread);
-}
-
-
-void Thread::Join() {
-  pthread_join(data_->thread_, NULL);
-}
-
-
-Thread::LocalStorageKey Thread::CreateThreadLocalKey() {
-  pthread_key_t key;
-  int result = pthread_key_create(&key, NULL);
-  USE(result);
-  ASSERT(result == 0);
-  return static_cast<LocalStorageKey>(key);
-}
-
-
-void Thread::DeleteThreadLocalKey(LocalStorageKey key) {
-  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
-  int result = pthread_key_delete(pthread_key);
-  USE(result);
-  ASSERT(result == 0);
-}
-
-
-void* Thread::GetThreadLocal(LocalStorageKey key) {
-  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
-  return pthread_getspecific(pthread_key);
-}
-
-
-void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
-  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
-  pthread_setspecific(pthread_key, value);
-}
-
-
 class OpenBSDSemaphore : public Semaphore {
  public:
   explicit OpenBSDSemaphore(int count) {  sem_init(&sem_, 0, count); }