Sampling profiler

runtime/vm/isolate.h

 // Copyright (c) 2013, 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_ISOLATE_H_
 #define VM_ISOLATE_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/thread.h"
@@ skipping 16 matching lines @@
 class CodeIndexTable;
 class Debugger;
 class DeoptContext;
 class Field;
 class Function;
 class HandleScope;
 class HandleVisitor;
 class Heap;
 class ICData;
 class Instance;
+class IsolateProfilerData;
 class LongJump;
 class MessageHandler;
 class Mutex;
 class Object;
 class ObjectPointerVisitor;
 class ObjectStore;
 class RawInstance;
 class RawArray;
 class RawContext;
 class RawDouble;
 class RawMint;
 class RawObject;
 class RawInteger;
 class RawError;
 class RawFloat32x4;
 class RawInt32x4;
+class SampleBuffer;
 class Simulator;
 class StackResource;
 class StackZone;
 class StubCode;
 class TypeArguments;
 class TypeParameter;
 class ObjectHistogram;
 class ObjectIdRing;
 
 
@@ skipping 133 matching lines @@
     return reinterpret_cast<uword>(&stack_limit_);
   }
 
   // The current stack limit.  This may be overwritten with a special
   // value to trigger interrupts.
   uword stack_limit() const { return stack_limit_; }
 
   // The true stack limit for this isolate.
   uword saved_stack_limit() const { return saved_stack_limit_; }
 
+  // Retrieve the stack address bounds.
+  bool GetStackBounds(uintptr_t* lower, uintptr_t* upper);
+
   static uword GetSpecifiedStackSize();
 
   static const intptr_t kStackSizeBuffer = (4 * KB * kWordSize);
 
   enum {
     kApiInterrupt = 0x1,      // An interrupt from Dart_InterruptIsolate.
     kMessageInterrupt = 0x2,  // An interrupt to process an out of band message.
     kStoreBufferInterrupt = 0x4,  // An interrupt to process the store buffer.
     kVmStatusInterrupt = 0x8,     // An interrupt to process a status request.
 
@@ skipping 160 matching lines @@
   intptr_t UnblockClassFinalization() {
     ASSERT(defer_finalization_count_ > 0);
     return defer_finalization_count_--;
   }
 
   bool AllowClassFinalization() {
     ASSERT(defer_finalization_count_ >= 0);
     return defer_finalization_count_ == 0;
   }
 
+  Mutex* profiler_data_mutex() const {
+    ASSERT(profiler_data_mutex_ != NULL);
+    return profiler_data_mutex_;
+  }
+
+  void set_profiler_data(IsolateProfilerData* profiler_data) {
+    profiler_data_ = profiler_data;
+  }
+
+  IsolateProfilerData* profiler_data() {
+    return profiler_data_;
+  }
+
  private:
   Isolate();
 
   void BuildName(const char* name_prefix);
   void PrintInvokedFunctions();
 
   static bool FetchStacktrace();
   static bool FetchStackFrameDetails();
   char* GetStatusDetails();
   char* GetStatusStacktrace();
@@ skipping 38 matching lines @@
   DeoptContext* deopt_context_;
 
   // Status support.
   char* stacktrace_;
   intptr_t stack_frame_index_;
   ObjectHistogram* object_histogram_;
 
   // Ring buffer of objects assigned an id.
   ObjectIdRing* object_id_ring_;
 
+  IsolateProfilerData* profiler_data_;
+  Mutex* profiler_data_mutex_;

[siva, 2013/11/11 03:51:54]

can the mutex be a value object instead?

[Cutch, 2013/11/18 20:48:54]

Done.

+
   // Reusable handles support.
 #define REUSABLE_HANDLE_FIELDS(object)                                         \
   object* object##_handle_;                                                    \
 
   REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_FIELDS)
 #undef REUSABLE_HANDLE_FIELDS
   VMHandles reusable_handles_;
 
   static Dart_IsolateCreateCallback create_callback_;
   static Dart_IsolateInterruptCallback interrupt_callback_;
@@ skipping 98 matching lines @@
   Isolate* isolate_;
   char* script_url_;
   char* library_url_;
   char* function_name_;
   char* exception_callback_name_;
 };
 
 }  // namespace dart
 
 #endif  // VM_ISOLATE_H_