content/browser/devtools/devtools_tracing_handler.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_
   6 #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "content/browser/devtools/devtools_protocol.h"
  10 #include "content/public/browser/tracing_controller.h"
  11
  12 namespace base {
  13 class RefCountedString;
  14 class Timer;
  15 }
  16
  17 namespace content {
  18
  19 // This class bridges DevTools remote debugging server with the trace
  20 // infrastructure.
  21 class DevToolsTracingHandler : public DevToolsProtocol::Handler {
  22  public:
  23   DevToolsTracingHandler();
  24   virtual ~DevToolsTracingHandler();
  25
  26  private:
  27   void BeginReadingRecordingResult(const base::FilePath& path);
  28   void ReadRecordingResult(const scoped_refptr<base::RefCountedString>& result);
  29   void OnTraceDataCollected(const std::string& trace_fragment);
  30   void OnBufferUsage(float usage);
  31
  32   scoped_refptr<DevToolsProtocol::Response> OnStart(
  33       scoped_refptr<DevToolsProtocol::Command> command);
  34   scoped_refptr<DevToolsProtocol::Response> OnEnd(
  35       scoped_refptr<DevToolsProtocol::Command> command);
  36
  37   TracingController::Options TraceOptionsFromString(const std::string& options);
  38
  39   base::WeakPtrFactory<DevToolsTracingHandler> weak_factory_;
  40   scoped_ptr<base::Timer> buffer_usage_poll_timer_;
  41   DISALLOW_COPY_AND_ASSIGN(DevToolsTracingHandler);
  42 };
  43
  44 }  // namespace content
  45
  46 #endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_