VM thread shutdown.

runtime/vm/os_thread_linux.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"  // NOLINT
 #if defined(TARGET_OS_LINUX)
 
 #include "vm/os_thread.h"
 
 #include <errno.h>  // NOLINT
@@ skipping 84 matching lines @@
 
   return NULL;
 }
 
 
 int OSThread::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, OSThread::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);
@@ skipping 35 matching lines @@
   return kStackSize;
 }
 
 
 ThreadId OSThread::GetCurrentThreadId() {
   return pthread_self();
 }
 
 
 bool OSThread::Join(ThreadId id) {
-  return false;
+  return pthread_join(id, NULL) == 0;
 }
 
 
 intptr_t OSThread::ThreadIdToIntPtr(ThreadId id) {
   ASSERT(sizeof(id) == sizeof(intptr_t));
   return static_cast<intptr_t>(id);
 }
 
 
 bool OSThread::Compare(ThreadId a, ThreadId b) {
@@ skipping 176 matching lines @@
 
 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
 
 #endif  // defined(TARGET_OS_LINUX)