Expose TickSample and its APIs in v8-profiler.h

src/profiler/cpu-profiler.cc

 // 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.
 
 #include "src/profiler/cpu-profiler.h"
 
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/frames-inl.h"
 #include "src/locked-queue-inl.h"
 #include "src/log-inl.h"
 #include "src/profiler/cpu-profiler-inl.h"
 #include "src/vm-state-inl.h"
 
-#include "include/v8-profiler.h"
-
 namespace v8 {
 namespace internal {
 
 static const int kProfilerStackSize = 64 * KB;
 
 
 ProfilerEventsProcessor::ProfilerEventsProcessor(ProfileGenerator* generator,
                                                  sampler::Sampler* sampler,
                                                  base::TimeDelta period)
     : Thread(Thread::Options("v8:ProfEvntProc", kProfilerStackSize)),
@@ skipping 15 matching lines @@
 
 
 void ProfilerEventsProcessor::AddDeoptStack(Isolate* isolate, Address from,
                                             int fp_to_sp_delta) {
   TickSampleEventRecord record(last_code_event_id_.Value());
   RegisterState regs;
   Address fp = isolate->c_entry_fp(isolate->thread_local_top());
   regs.sp = fp - fp_to_sp_delta;
   regs.fp = fp;
   regs.pc = from;
-  record.sample.Init(isolate, regs, TickSample::kSkipCEntryFrame, false);
+  record.sample.Init(reinterpret_cast<v8::Isolate*>(isolate), regs,
+                     TickSample::kSkipCEntryFrame, false);
+  record.sample.timestamp = record.sample.pc == nullptr

[alph, 2016/07/01 00:38:13]

nit: You can create internal::TickSample::Init and setup timestamp there after
calling v8::TickSample::Init.

[lpy, 2016/07/01 01:00:10]

Done.

+                            ? base::TimeTicks()
+                            : base::TimeTicks::HighResolutionNow();
   ticks_from_vm_buffer_.Enqueue(record);
 }
 
 void ProfilerEventsProcessor::AddCurrentStack(Isolate* isolate,
                                               bool update_stats) {
   TickSampleEventRecord record(last_code_event_id_.Value());
   RegisterState regs;
   StackFrameIterator it(isolate);
   if (!it.done()) {
     StackFrame* frame = it.frame();
     regs.sp = frame->sp();
     regs.fp = frame->fp();
     regs.pc = frame->pc();
   }
-  record.sample.Init(isolate, regs, TickSample::kSkipCEntryFrame, update_stats);
+  record.sample.Init(reinterpret_cast<v8::Isolate*>(isolate), regs,
+                     TickSample::kSkipCEntryFrame, update_stats);
+  record.sample.timestamp = record.sample.pc == nullptr
+                            ? base::TimeTicks()
+                            : base::TimeTicks::HighResolutionNow();
   ticks_from_vm_buffer_.Enqueue(record);
 }
 
 
 void ProfilerEventsProcessor::StopSynchronously() {
   if (!base::NoBarrier_AtomicExchange(&running_, 0)) return;
   Join();
 }
 
 
@@ skipping 282 matching lines @@
     ReportBuiltinEventRecord* rec = &evt_rec.ReportBuiltinEventRecord_;
     Builtins::Name id = static_cast<Builtins::Name>(i);
     rec->start = builtins->builtin(id)->address();
     rec->builtin_id = id;
     processor_->Enqueue(evt_rec);
   }
 }
 
 }  // namespace internal
 }  // namespace v8