Relax zone allocation assertion

runtime/vm/thread.cc

 // 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.
 
 #include "vm/thread.h"
 
 #include "vm/compiler_stats.h"
 #include "vm/dart_api_state.h"
 #include "vm/growable_array.h"
 #include "vm/isolate.h"
 #include "vm/lockers.h"
 #include "vm/log.h"
 #include "vm/message_handler.h"
 #include "vm/native_entry.h"
 #include "vm/object.h"
 #include "vm/os_thread.h"
 #include "vm/profiler.h"
 #include "vm/runtime_entry.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 #include "vm/thread_interrupter.h"
 #include "vm/thread_registry.h"
 #include "vm/timeline.h"
+#include "vm/zone.h"
 
 namespace dart {
 
 
 DECLARE_FLAG(bool, trace_service);
 DECLARE_FLAG(bool, trace_service_verbose);
 
 
 Thread::~Thread() {
   // We should cleanly exit any isolate before destruction.
@@ skipping 382 matching lines @@
   MonitorLocker ml(thread_lock_);
   if (stack_limit_ == saved_stack_limit_) {
     return 0;  // No interrupt was requested.
   }
   uword interrupt_bits = stack_limit_ & kInterruptsMask;
   stack_limit_ = saved_stack_limit_;
   return interrupt_bits;
 }
 
 
+bool Thread::ZoneIsOwnedByThread(Zone* zone) const {
+  ASSERT(zone != NULL);
+  Zone* current = zone_;
+  while (current != NULL) {
+    if (current == zone) {
+      return true;
+    }
+    current = current->previous();
+  }
+  return false;
+}
+
+
 void Thread::DeferOOBMessageInterrupts() {
   MonitorLocker ml(thread_lock_);
   defer_oob_messages_count_++;
   if (defer_oob_messages_count_ > 1) {
     // OOB message interrupts are already deferred.
     return;
   }
   ASSERT(deferred_interrupts_mask_ == 0);
   deferred_interrupts_mask_ = kMessageInterrupt;
 
@@ skipping 322 matching lines @@
 
 DisableThreadInterruptsScope::~DisableThreadInterruptsScope() {
   if (thread() != NULL) {
     OSThread* os_thread = thread()->os_thread();
     ASSERT(os_thread != NULL);
     os_thread->EnableThreadInterrupts();
   }
 }
 
 }  // namespace dart