Create code and instruction object, and install them in the background compilation thread while br…

runtime/vm/thread_registry.h

 // Copyright (c) 2015, 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.
 
 #ifndef VM_THREAD_REGISTRY_H_
 #define VM_THREAD_REGISTRY_H_
 
 #include "vm/globals.h"
 #include "vm/growable_array.h"
 #include "vm/isolate.h"
@@ skipping 30 matching lines @@
   // TODO(koda): Consider adding a scope helper to avoid omitting this call.
   void ResumeAllThreads();
 
   // Indicate that the current thread is at a safepoint, and offer to wait for
   // any pending rendezvous request (if none, returns immediately).
   void CheckSafepoint() {
     MonitorLocker ml(monitor_);
     CheckSafepointLocked();
   }
 
+  bool AtSafepoint() const { return in_rendezvous_; }
+
   bool RestoreStateTo(Thread* thread, Thread::State* state,
                       bool bypass_safepoint) {
     MonitorLocker ml(monitor_);
     // Wait for any rendezvous in progress.
     while (!bypass_safepoint && in_rendezvous_) {
       ml.Wait(Monitor::kNoTimeout);
     }
     Entry* entry = FindEntry(thread);
     if (entry != NULL) {
       Thread::State st = entry->state;
@@ skipping 142 matching lines @@
   intptr_t remaining_;    // Number of threads yet to reach their safepoint.
   int64_t round_;         // Counter, to prevent missing updates to remaining_
                           // (see comments in CheckSafepointLocked).
 
   DISALLOW_COPY_AND_ASSIGN(ThreadRegistry);
 };
 
 }  // namespace dart
 
 #endif  // VM_THREAD_REGISTRY_H_