1/* 2 * libjingle 3 * Copyright 2004--2005, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28#include "talk/p2p/client/socketmonitor.h" 29 30#include "webrtc/base/common.h" 31 32namespace cricket { 33 34enum { 35 MSG_MONITOR_POLL, 36 MSG_MONITOR_START, 37 MSG_MONITOR_STOP, 38 MSG_MONITOR_SIGNAL 39}; 40 41SocketMonitor::SocketMonitor(TransportChannel* channel, 42 rtc::Thread* worker_thread, 43 rtc::Thread* monitor_thread) { 44 channel_ = channel; 45 channel_thread_ = worker_thread; 46 monitoring_thread_ = monitor_thread; 47 monitoring_ = false; 48} 49 50SocketMonitor::~SocketMonitor() { 51 channel_thread_->Clear(this); 52 monitoring_thread_->Clear(this); 53} 54 55void SocketMonitor::Start(int milliseconds) { 56 rate_ = milliseconds; 57 if (rate_ < 250) 58 rate_ = 250; 59 channel_thread_->Post(this, MSG_MONITOR_START); 60} 61 62void SocketMonitor::Stop() { 63 channel_thread_->Post(this, MSG_MONITOR_STOP); 64} 65 66void SocketMonitor::OnMessage(rtc::Message *message) { 67 rtc::CritScope cs(&crit_); 68 switch (message->message_id) { 69 case MSG_MONITOR_START: 70 ASSERT(rtc::Thread::Current() == channel_thread_); 71 if (!monitoring_) { 72 monitoring_ = true; 73 PollSocket(true); 74 } 75 break; 76 77 case MSG_MONITOR_STOP: 78 ASSERT(rtc::Thread::Current() == channel_thread_); 79 if (monitoring_) { 80 monitoring_ = false; 81 channel_thread_->Clear(this); 82 } 83 break; 84 85 case MSG_MONITOR_POLL: 86 ASSERT(rtc::Thread::Current() == channel_thread_); 87 PollSocket(true); 88 break; 89 90 case MSG_MONITOR_SIGNAL: { 91 ASSERT(rtc::Thread::Current() == monitoring_thread_); 92 std::vector<ConnectionInfo> infos = connection_infos_; 93 crit_.Leave(); 94 SignalUpdate(this, infos); 95 crit_.Enter(); 96 break; 97 } 98 } 99} 100 101void SocketMonitor::PollSocket(bool poll) { 102 ASSERT(rtc::Thread::Current() == channel_thread_); 103 rtc::CritScope cs(&crit_); 104 105 // Gather connection infos 106 channel_->GetStats(&connection_infos_); 107 108 // Signal the monitoring thread, start another poll timer 109 monitoring_thread_->Post(this, MSG_MONITOR_SIGNAL); 110 if (poll) 111 channel_thread_->PostDelayed(rate_, this, MSG_MONITOR_POLL); 112} 113 114} // namespace cricket 115