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76bf81396a
No WebRTC session statistics will be saved until all PeerConnections in private browsing window end. In addition, the shared WebRTC ICE signalling log for that e10s process is disabled until the private session close.
130 lines
4.4 KiB
C++
130 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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// Some of this code is cut-and-pasted from nICEr. Copyright is:
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/*
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Copyright (c) 2007, Adobe Systems, Incorporated
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Adobe Systems, Network Resonance nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Original author: bcampen@mozilla.com */
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/*
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This file defines an r_dest_vlog that can be used to accumulate log messages
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for later inspection/filtering. The intent is to use this for interactive
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debug purposes on an about:webrtc page or similar.
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*/
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#ifndef rlogringbuffer_h__
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#define rlogringbuffer_h__
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#include <stdint.h>
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#include <deque>
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#include <string>
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#include <vector>
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#include "mozilla/Mutex.h"
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#include "m_cpp_utils.h"
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namespace mozilla {
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class RLogRingBuffer {
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public:
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/*
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NB: These are not threadsafe, nor are they safe to call during static
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init/deinit.
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*/
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static RLogRingBuffer* CreateInstance();
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static RLogRingBuffer* GetInstance();
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static void DestroyInstance();
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/*
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Retrieves log statements that match a given substring, subject to a
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limit. |matching_logs| will be filled in chronological order (front()
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is oldest, back() is newest). |limit| == 0 will be interpreted as no
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limit.
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*/
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void Filter(const std::string& substring,
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uint32_t limit,
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std::deque<std::string>* matching_logs);
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void FilterAny(const std::vector<std::string>& substrings,
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uint32_t limit,
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std::deque<std::string>* matching_logs);
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inline void GetAny(uint32_t limit,
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std::deque<std::string>* matching_logs) {
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Filter("", limit, matching_logs);
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}
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void SetLogLimit(uint32_t new_limit);
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void Log(std::string&& log);
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void Clear();
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// Methods to signal when a PeerConnection exists in a Private Window.
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void EnterPrivateMode();
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void ExitPrivateMode();
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private:
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RLogRingBuffer();
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~RLogRingBuffer();
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void RemoveOld();
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void AddMsg(std::string&& msg);
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static RLogRingBuffer* instance;
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/*
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* Might be worthwhile making this a circular buffer, but I think it is
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* preferable to take up as little space as possible if no logging is
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* happening/the ringbuffer is not being used.
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*/
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std::deque<std::string> log_messages_;
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/* Max size of log buffer (should we use time-depth instead/also?) */
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uint32_t log_limit_;
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OffTheBooksMutex mutex_;
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uint32_t disableCount_;
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DISALLOW_COPY_ASSIGN(RLogRingBuffer);
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}; // class RLogRingBuffer
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} // namespace mozilla
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#endif // rlogringbuffer_h__
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