| // Copyright (c) 2012 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 CONTENT_BROWSER_TRACE_MESSAGE_FILTER_H_ |
| #define CONTENT_BROWSER_TRACE_MESSAGE_FILTER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "content/public/browser/browser_message_filter.h" |
| |
| namespace content { |
| |
| // This class sends and receives trace messages on the browser process. |
| // See also: trace_controller.h |
| // See also: child_trace_message_filter.h |
| class TraceMessageFilter : public BrowserMessageFilter { |
| public: |
| TraceMessageFilter(); |
| |
| // BrowserMessageFilter override. |
| virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE; |
| |
| // BrowserMessageFilter implementation. |
| virtual void OnChannelClosing() OVERRIDE; |
| virtual bool OnMessageReceived(const IPC::Message& message, |
| bool* message_was_ok) OVERRIDE; |
| |
| void SendBeginTracing(const std::vector<std::string>& included_categories, |
| const std::vector<std::string>& excluded_categories); |
| void SendEndTracing(); |
| void SendGetTraceBufferPercentFull(); |
| void SendSetWatchEvent(const std::string& category_name, |
| const std::string& event_name); |
| void SendCancelWatchEvent(); |
| |
| protected: |
| virtual ~TraceMessageFilter(); |
| |
| private: |
| // Message handlers. |
| void OnChildSupportsTracing(); |
| void OnEndTracingAck(const std::vector<std::string>& known_categories); |
| void OnTraceNotification(int notification); |
| void OnTraceBufferPercentFullReply(float percent_full); |
| void OnTraceDataCollected(const std::string& data); |
| |
| // ChildTraceMessageFilter exists: |
| bool has_child_; |
| |
| // Awaiting ack for previously sent SendEndTracing |
| bool is_awaiting_end_ack_; |
| // Awaiting ack for previously sent SendGetTraceBufferPercentFull |
| bool is_awaiting_buffer_percent_full_ack_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TraceMessageFilter); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_TRACE_MESSAGE_FILTER_H_ |