Initial GetSample implementation.

include/v8.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.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 6673 matching lines @@
 void* Context::GetAlignedPointerFromEmbedderData(int index) {
 #ifndef V8_ENABLE_CHECKS
   typedef internal::Internals I;
   return I::ReadEmbedderData<void*>(this, index);
 #else
   return SlowGetAlignedPointerFromEmbedderData(index);
 #endif
 }
 
 
+// Logging and profiling.  A StateTag represents a possible state of
+// the VM. The logger maintains a stack of these. Creating a VMState
+// object enters a state by pushing on the stack, and destroying a
+// VMState object leaves a state by popping the current state from the
+// stack.
+
+enum StateTag {

[Benedikt Meurer, 2014/08/14 04:20:23]

Move this to v8-sampler.h and fix the comment (VMState is an internal thing, no
need to document that in a public header).

[gholap, 2014/08/15 17:54:13]

Now that you've mentioned it, I've looked into both devtools and trace viewer
code and they don't use the state. So, after a discussion with fmeawad, I
removed this from public API altogether. Please let me know whether this is a
bad idea...

[Benedikt Meurer, 2014/08/18 04:22:03]

Great! We should not expose internal state via the public API.

+  JS,              // Executing JavaScript.
+  GC,              // Garbage Collection.
+  COMPILER,        // Compiling JavaScript.
+  OTHER,
+  EXTERNAL,        // External call. (For example, a call into blink)
+  IDLE             // The VM is idle.
+};
+
 /**
  * \example shell.cc
  * A simple shell that takes a list of expressions on the
  * command-line and executes them.
  */
 
 
 /**
  * \example process.cc
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_