content/browser/devtools/protocol/tracing_handler.h

   1 // Copyright 2014 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_PROTOCOL_TRACING_HANDLER_H_
   6 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_TRACING_HANDLER_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/trace_event/trace_event.h"
  13 #include "content/browser/devtools/protocol/devtools_protocol_handler.h"
  14 #include "content/public/browser/tracing_controller.h"
  15
  16 namespace base {
  17 class RefCountedString;
  18 class Timer;
  19 }
  20
  21 namespace content {
  22 namespace devtools {
  23 namespace tracing {
  24
  25 class TracingHandler {
  26  public:
  27   typedef DevToolsProtocolClient::Response Response;
  28
  29   enum Target { Browser, Renderer };
  30   explicit TracingHandler(Target target);
  31   virtual ~TracingHandler();
  32
  33   void SetClient(scoped_ptr<Client> client);
  34   void Detached();
  35
  36   void OnTraceDataCollected(const std::string& trace_fragment);
  37   void OnTraceComplete();
  38
  39   Response Start(DevToolsCommandId command_id,
  40                  const std::string* categories,
  41                  const std::string* options,
  42                  const double* buffer_usage_reporting_interval);
  43   Response End(DevToolsCommandId command_id);
  44   Response GetCategories(DevToolsCommandId command);
  45
  46  private:
  47   void OnRecordingEnabled(DevToolsCommandId command_id);
  48   void OnBufferUsage(float percent_full, size_t approximate_event_count);
  49
  50   void OnCategoriesReceived(DevToolsCommandId command_id,
  51                             const std::set<std::string>& category_set);
  52
  53   base::trace_event::TraceOptions TraceOptionsFromString(
  54       const std::string* options);
  55
  56   void SetupTimer(double usage_reporting_interval);
  57
  58   void DisableRecording(bool abort);
  59
  60   scoped_ptr<base::Timer> buffer_usage_poll_timer_;
  61   Target target_;
  62   bool is_recording_;
  63
  64   scoped_ptr<Client> client_;
  65   base::WeakPtrFactory<TracingHandler> weak_factory_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(TracingHandler);
  68 };
  69
  70 }  // namespace tracing
  71 }  // namespace devtools
  72 }  // namespace content
  73
  74 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_TRACING_HANDLER_H_