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/*
* Copyright 2003-2020 The Music Player Daemon Project
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "SignalHandlers.hxx"
#include "Instance.hxx"
#include "event/SignalMonitor.hxx"
#ifndef _WIN32
#include "Log.hxx"
#include "LogInit.hxx"
#include "system/Error.hxx"
#include "util/Domain.hxx"
#include <signal.h>
static constexpr Domain signal_handlers_domain("signal_handlers");
static void
HandleShutdownSignal(void *ctx) noexcept
{
auto &loop = *(EventLoop *)ctx;
loop.Break();
}
static void
x_sigaction(int signum, const struct sigaction *act)
{
if (sigaction(signum, act, nullptr) < 0)
throw MakeErrno("sigaction() failed");
}
static void
handle_reload_event(void *ctx) noexcept
{
auto &instance = *(Instance *)ctx;
LogDebug(signal_handlers_domain, "got SIGHUP, reopening log files and flushing caches");
cycle_log_files();
instance.FlushCaches();
}
#endif
void
SignalHandlersInit(Instance &instance)
{
auto &loop = instance.event_loop;
SignalMonitorInit(loop);
#ifndef _WIN32
struct sigaction sa;
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
sa.sa_handler = SIG_IGN;
x_sigaction(SIGPIPE, &sa);
SignalMonitorRegister(SIGINT, {&loop, HandleShutdownSignal});
SignalMonitorRegister(SIGTERM, {&loop, HandleShutdownSignal});
SignalMonitorRegister(SIGHUP, {&instance, handle_reload_event});
#endif
}
void
SignalHandlersFinish() noexcept
{
SignalMonitorFinish();
}
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