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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/base/common.h"
#include "talk/p2p/base/helpers.h"
#include "sessionmanager.h"
namespace cricket {
SessionManager::SessionManager(PortAllocator *allocator, Thread *worker) {
allocator_ = allocator;
signaling_thread_ = Thread::Current();
if (worker == NULL) {
worker_thread_ = Thread::Current();
} else {
worker_thread_ = worker;
}
timeout_ = 50;
}
SessionManager::~SessionManager() {
// Note: Session::Terminate occurs asynchronously, so it's too late to
// delete them now. They better be all gone.
ASSERT(session_map_.empty());
//TerminateAll();
}
Session *SessionManager::CreateSession(const std::string &name, const std::string& initiator) {
return CreateSession(name, SessionID(initiator, CreateRandomId()), false);
}
Session *SessionManager::CreateSession(const std::string &name, const SessionID& id, bool received_initiate) {
Session *session = new Session(this, name, id);
session_map_[session->id()] = session;
session->SignalRequestSignaling.connect(this, &SessionManager::OnRequestSignaling);
SignalSessionCreate(session, received_initiate);
return session;
}
void SessionManager::DestroySession(Session *session) {
if (session != NULL) {
std::map<SessionID, Session *>::iterator it = session_map_.find(session->id());
if (it != session_map_.end()) {
SignalSessionDestroy(session);
session_map_.erase(it);
delete session;
}
}
}
Session *SessionManager::GetSession(const SessionID& id) {
// If the id isn't present, the [] operator will make a NULL entry
std::map<SessionID, Session *>::iterator it = session_map_.find(id);
if (it != session_map_.end())
return (*it).second;
return NULL;
}
void SessionManager::TerminateAll() {
while (session_map_.begin() != session_map_.end()) {
Session *session = session_map_.begin()->second;
session->Terminate();
}
}
void SessionManager::OnIncomingError(const SessionMessage &m) {
// Incoming signaling error. This means, as the result of trying
// to send message m, and error was generated. In all cases, a
// session should already exist
Session *session;
switch (m.type()) {
case SessionMessage::TYPE_INITIATE:
case SessionMessage::TYPE_ACCEPT:
case SessionMessage::TYPE_MODIFY:
case SessionMessage::TYPE_CANDIDATES:
case SessionMessage::TYPE_REJECT:
case SessionMessage::TYPE_TERMINATE:
session = GetSession(m.session_id());
break;
default:
return;
}
if (session != NULL)
session->OnIncomingError(m);
}
void SessionManager::OnIncomingMessage(const SessionMessage &m) {
// In the case of an incoming initiate, there is no session yet, and one needs to be created.
// The other cases have sessions already.
Session *session;
switch (m.type()) {
case SessionMessage::TYPE_INITIATE:
session = CreateSession(m.name(), m.session_id(), true);
break;
case SessionMessage::TYPE_ACCEPT:
case SessionMessage::TYPE_MODIFY:
case SessionMessage::TYPE_CANDIDATES:
case SessionMessage::TYPE_REJECT:
case SessionMessage::TYPE_REDIRECT:
case SessionMessage::TYPE_TERMINATE:
session = GetSession(m.session_id());
break;
default:
return;
}
if (session != NULL)
session->OnIncomingMessage(m);
}
void SessionManager::OnSignalingReady() {
for (std::map<SessionID, Session *>::iterator it = session_map_.begin();
it != session_map_.end(); ++it) {
it->second->OnSignalingReady();
}
}
void SessionManager::OnRequestSignaling() {
SignalRequestSignaling();
}
PortAllocator *SessionManager::port_allocator() const {
return allocator_;
}
Thread *SessionManager::worker_thread() const {
return worker_thread_;
}
Thread *SessionManager::signaling_thread() const {
return signaling_thread_;
}
int SessionManager::session_timeout() {
return timeout_;
}
void SessionManager::set_session_timeout(int timeout) {
timeout_ = timeout;
}
} // namespace cricket
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