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/* the Music Player Daemon (MPD)
* Copyright (C) 2008 Max Kellermann <max@duempel.org>
* This project's homepage is: http://www.musicpd.org
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "notify.h"
#include "os_compat.h"
#include "log.h"
#include "utils.h"
void initNotify(Notify *notify)
{
if (pipe(notify->fds) < 0)
FATAL("Couldn't open pipe: %s", strerror(errno));
if (set_nonblocking(notify->fds[1]) < 0)
FATAL("Couldn't set non-blocking on notify fd: %s",
strerror(errno));
}
void waitNotify(Notify *notify)
{
char buffer[64];
if (read(notify->fds[0], buffer, sizeof(buffer)) < 0)
FATAL("error reading from pipe: %s\n", strerror(errno));
}
void signalNotify(Notify *notify)
{
char buffer = 0;
if (write(notify->fds[1], &buffer, sizeof(buffer)) < 0 &&
errno != EAGAIN && errno != EINTR)
FATAL("error writing to pipe: %s\n", strerror(errno));
}
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