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142 lines
3.5 KiB
142 lines
3.5 KiB
/*
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* Copyright (C) 2002-2003 Fhg Fokus
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*
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* This file is part of SEMS, a free SIP media server.
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*
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* SEMS is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version. This program is released under
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* the GPL with the additional exemption that compiling, linking,
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* and/or using OpenSSL is allowed.
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*
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* For a license to use the SEMS software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* SEMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "AmEventQueue.h"
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#include "log.h"
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#include "AmConfig.h"
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#include <typeinfo>
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AmEventQueueBase::AmEventQueueBase(AmEventHandler* handler, std::mutex& _m, std::condition_variable& _c)
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: handler(handler),
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wakeup_handler(NULL),
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finalized(false),
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_mut(_m),
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_cond(_c)
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{
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}
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AmEventQueueBase::~AmEventQueueBase()
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{
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while(!ev_queue.empty()){
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delete ev_queue.front();
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ev_queue.pop();
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}
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}
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void AmEventQueueBase::postEvent(AmEvent* event)
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{
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if (!event)
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return;
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if (AmConfig::LogEvents)
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DBG("AmEventQueue: trying to post event\n");
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std::lock_guard<std::mutex> _l(_mut);
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bool was_empty = ev_queue.empty();
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ev_queue.push(event);
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_cond.notify_all();
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if (was_empty && NULL != wakeup_handler)
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wakeup_handler->notify(this);
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if (AmConfig::LogEvents)
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DBG("AmEventQueue: event posted\n");
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}
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void AmEventQueueBase::processEvents()
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{
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std::unique_lock<std::mutex> _l(_mut);
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while (!ev_queue.empty()) {
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AmEvent* event = ev_queue.front();
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ev_queue.pop();
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_l.unlock();
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if (AmConfig::LogEvents)
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DBG("before processing event (%s)\n",
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typeid(*event).name());
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handler->process(event);
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if (AmConfig::LogEvents)
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DBG("event processed (%s)\n",
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typeid(*event).name());
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delete event;
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if (!_l.owns_lock())
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_l.lock();
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}
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}
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void AmEventQueueBase::waitForEvent()
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{
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std::unique_lock<std::mutex> _l(_mut);
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while (shouldSleep())
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_cond.wait(_l);
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}
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void AmEventQueueBase::waitForEventTimed(unsigned long msec)
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{
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std::unique_lock<std::mutex> _l(_mut);
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if (shouldSleep())
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_cond.wait_for(_l, std::chrono::milliseconds(msec));
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}
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void AmEventQueueBase::processSingleEvent()
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{
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std::unique_lock<std::mutex> _l(_mut);
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if (ev_queue.empty())
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return;
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AmEvent* event = ev_queue.front();
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ev_queue.pop();
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_l.unlock();
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if (AmConfig::LogEvents)
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DBG("before processing event\n");
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handler->process(event);
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if (AmConfig::LogEvents)
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DBG("event processed\n");
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delete event;
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}
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bool AmEventQueueBase::eventPending() {
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std::lock_guard<std::mutex> _l(_mut);
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return !shouldSleep();
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}
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void AmEventQueueBase::setEventNotificationSink(AmEventNotificationSink*
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_wakeup_handler) {
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std::unique_lock<std::mutex> _l(_mut);
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wakeup_handler = _wakeup_handler;
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if (wakeup_handler && !ev_queue.empty())
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wakeup_handler->notify(this);
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}
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