DevTools: make possible profiling of scripts doing heavy calculations.

webkit/glue/devtools/profiler_agent.h

+// Copyright (c) 2009 The Chromium 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 WEBKIT_GLUE_DEVTOOLS_PROFILER_AGENT_H_
+#define WEBKIT_GLUE_DEVTOOLS_PROFILER_AGENT_H_
+
+#include "webkit/glue/devtools/devtools_rpc.h"
+
+// Profiler agent provides API for retrieving profiler data.
+// These methods are handled on the IO thread, so profiler can
+// operate while a script on a page performs heavy work.
+#define PROFILER_AGENT_STRUCT(METHOD0, METHOD1, METHOD2, METHOD3) \
+  /* Requests current profiler state. */                          \
+  METHOD0(GetActiveProfilerModules)                               \
+                                                                  \
+  /* Retrieves portion of profiler log. */                        \
+  METHOD1(GetLogLines, int /* position */)
+
+DEFINE_RPC_CLASS(ProfilerAgent, PROFILER_AGENT_STRUCT)
+
+#define PROFILER_AGENT_DELEGATE_STRUCT(METHOD0, METHOD1, METHOD2, METHOD3) \
+  /* Response to GetActiveProfilerModules. */                           \
+  METHOD1(DidGetActiveProfilerModules, int /* flags */)                 \
+                                                                        \
+  /* Response to GetLogLines. */                                        \
+  METHOD2(DidGetLogLines, int /* position */, String /* log */)
+
+DEFINE_RPC_CLASS(ProfilerAgentDelegate, PROFILER_AGENT_DELEGATE_STRUCT)
+
+#endif  // WEBKIT_GLUE_DEVTOOLS_PROFILER_AGENT_H_