28e2075280
trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
109 lines
4.4 KiB
C++
109 lines
4.4 KiB
C++
/*
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* libjingle
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* Copyright 2004--2005, Google Inc.
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*
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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 met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "talk/p2p/base/portallocator.h"
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#include "talk/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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// 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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}
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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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