c5fd66dcdf
BUG=4068 R=juberti@webrtc.org Review URL: https://webrtc-codereview.appspot.com/33509004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7980 4adac7df-926f-26a2-2b94-8c16560cd09d
96 lines
3.6 KiB
C++
96 lines
3.6 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/p2p/base/portallocator.h"
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#include "webrtc/p2p/base/portallocatorsessionproxy.h"
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namespace cricket {
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PortAllocatorSession::PortAllocatorSession(const std::string& content_name,
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int component,
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const std::string& ice_ufrag,
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const std::string& ice_pwd,
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uint32 flags)
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: content_name_(content_name),
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component_(component),
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flags_(flags),
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generation_(0),
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// If PORTALLOCATOR_ENABLE_SHARED_UFRAG flag is not enabled, ignore the
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// incoming ufrag and pwd, which will cause each Port to generate one
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// by itself.
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username_(flags_ & PORTALLOCATOR_ENABLE_SHARED_UFRAG ? ice_ufrag : ""),
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password_(flags_ & PORTALLOCATOR_ENABLE_SHARED_UFRAG ? ice_pwd : "") {
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// If bundle is enabled, shared ufrag must be enabled too.
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ASSERT((!(flags_ & PORTALLOCATOR_ENABLE_BUNDLE)) ||
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(flags_ & PORTALLOCATOR_ENABLE_SHARED_UFRAG));
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}
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PortAllocator::~PortAllocator() {
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for (SessionMuxerMap::iterator iter = muxers_.begin();
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iter != muxers_.end(); ++iter) {
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delete iter->second;
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}
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}
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PortAllocatorSession* PortAllocator::CreateSession(
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const std::string& sid,
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const std::string& content_name,
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int component,
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const std::string& ice_ufrag,
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const std::string& ice_pwd) {
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if (flags_ & PORTALLOCATOR_ENABLE_BUNDLE) {
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// If we just use |sid| as key in identifying PortAllocatorSessionMuxer,
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// ICE restart will not result in different candidates, as |sid| will
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// be same. To yield different candiates we are using combination of
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// |ice_ufrag| and |ice_pwd|.
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// Ideally |ice_ufrag| and |ice_pwd| should change together, but
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// there can be instances where only ice_pwd will be changed.
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std::string key_str = ice_ufrag + ":" + ice_pwd;
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PortAllocatorSessionMuxer* muxer = GetSessionMuxer(key_str);
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if (!muxer) {
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PortAllocatorSession* session_impl = CreateSessionInternal(
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content_name, component, ice_ufrag, ice_pwd);
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// Create PortAllocatorSessionMuxer object for |session_impl|.
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muxer = new PortAllocatorSessionMuxer(session_impl);
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muxer->SignalDestroyed.connect(
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this, &PortAllocator::OnSessionMuxerDestroyed);
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// Add PortAllocatorSession to the map.
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muxers_[key_str] = muxer;
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}
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PortAllocatorSessionProxy* proxy =
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new PortAllocatorSessionProxy(content_name, component, flags_);
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muxer->RegisterSessionProxy(proxy);
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return proxy;
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}
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return CreateSessionInternal(content_name, component, ice_ufrag, ice_pwd);
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}
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PortAllocatorSessionMuxer* PortAllocator::GetSessionMuxer(
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const std::string& key) const {
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SessionMuxerMap::const_iterator iter = muxers_.find(key);
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if (iter != muxers_.end())
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return iter->second;
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return NULL;
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}
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void PortAllocator::OnSessionMuxerDestroyed(
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PortAllocatorSessionMuxer* session) {
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SessionMuxerMap::iterator iter;
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for (iter = muxers_.begin(); iter != muxers_.end(); ++iter) {
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if (iter->second == session)
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break;
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}
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if (iter != muxers_.end())
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muxers_.erase(iter);
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}
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} // namespace cricket
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