[profiler] Move away from UnboundedQueue to LockedQueue for regular events.

src/profiler/cpu-profiler.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PROFILER_CPU_PROFILER_H_
 #define V8_PROFILER_CPU_PROFILER_H_
 
 #include "src/allocation.h"
+#include "src/atomic-utils.h"
 #include "src/base/atomicops.h"
 #include "src/base/platform/time.h"
 #include "src/compiler.h"
+#include "src/locked-queue.h"
 #include "src/profiler/circular-queue.h"
 #include "src/profiler/sampler.h"
-#include "src/profiler/unbound-queue.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class CodeEntry;
 class CodeMap;
 class CompilationInfo;
 class CpuProfile;
 class CpuProfilesCollection;
@@ skipping 137 matching lines @@
     FoundSampleForNextCodeEvent,
     NoSamplesInQueue
   };
   SampleProcessingResult ProcessOneSample();
 
   ProfileGenerator* generator_;
   Sampler* sampler_;
   base::Atomic32 running_;
   // Sampling period in microseconds.
   const base::TimeDelta period_;
-  UnboundQueue<CodeEventsContainer> events_buffer_;
+  LockedQueue<CodeEventsContainer> events_buffer_;
   static const size_t kTickSampleBufferSize = 1 * MB;
   static const size_t kTickSampleQueueLength =
       kTickSampleBufferSize / sizeof(TickSampleEventRecord);
   SamplingCircularQueue<TickSampleEventRecord,
                         kTickSampleQueueLength> ticks_buffer_;
-  UnboundQueue<TickSampleEventRecord> ticks_from_vm_buffer_;
-  unsigned last_code_event_id_;
+  LockedQueue<TickSampleEventRecord> ticks_from_vm_buffer_;
+  AtomicNumber<unsigned> last_code_event_id_;
   unsigned last_processed_code_event_id_;
 };
 
 
 #define PROFILE(IsolateGetter, Call)                                        \
   do {                                                                      \
     Isolate* cpu_profiler_isolate = (IsolateGetter);                        \
     v8::internal::Logger* logger = cpu_profiler_isolate->logger();          \
     CpuProfiler* cpu_profiler = cpu_profiler_isolate->cpu_profiler();       \
     if (logger->is_logging_code_events() || cpu_profiler->is_profiling()) { \
@@ skipping 78 matching lines @@
   bool is_profiling_;
 
   DISALLOW_COPY_AND_ASSIGN(CpuProfiler);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 
 #endif  // V8_PROFILER_CPU_PROFILER_H_