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/*
* ActionManager.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ActionManager.h"
#include <Net/FdManager.h>
#include <fcntl.h>
#include <signal.h>
namespace Mad {
namespace Common {
ActionManager ActionManager::actionManager;
void ActionManager::doInit() {
// TODO Error handling
pipe(notifyPipe);
fcntl(notifyPipe[0], F_SETFL, fcntl(notifyPipe[0], F_GETFL) | O_NONBLOCK);
fcntl(notifyPipe[1], F_SETFL, fcntl(notifyPipe[1], F_GETFL) | O_NONBLOCK);
Net::FdManager::get()->registerFd(notifyPipe[0], boost::bind(&ActionManager::run, this), POLLIN);
}
void ActionManager::doDeinit() {
Net::FdManager::get()->unregisterFd(notifyPipe[0]);
close(notifyPipe[0]);
close(notifyPipe[1]);
}
void ActionManager::run() {
// Empty pipe
char buf[16];
while(read(notifyPipe[0], buf, sizeof(buf)) > 0) {}
while(true) {
sigset_t set, oldset;
sigfillset(&set);
sigprocmask(SIG_SETMASK, &set, &oldset);
if(actions.empty()) {
sigprocmask(SIG_SETMASK, &oldset, 0);
return;
}
boost::function0<void> action = actions.front();
actions.pop();
sigprocmask(SIG_SETMASK, &oldset, 0);
action();
}
}
void ActionManager::add(const boost::function0<void> &action) {
sigset_t set, oldset;
sigfillset(&set);
sigprocmask(SIG_SETMASK, &set, &oldset);
actions.push(action);
write(notifyPipe[1], "", 1);
sigprocmask(SIG_SETMASK, &oldset, 0);
}
}
}
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