marcel/gamemode
1
0
Fork 0
mirror of https://github.com/FeralInteractive/gamemode.git synced 2025-06-06 07:37:21 +02:00
Code Issues Packages Projects Releases Wiki Activity

Move daemonise code to main file, simplifying files

Browse Source
This commit is contained in:
Marc Di Luzio 2019-05-22 17:10:20 +01:00
parent 9d484061ad
commit 81e38d02e6
5 changed files with 46 additions and 122 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
daemon/daemonize.c
View File

@ -1,81 +0,0 @@
/*
Copyright (c) 2017-2019, Feral Interactive
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* 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.
* Neither the name of Feral Interactive nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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 "daemonize.h"
#include "logging.h"
#include <fcntl.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
/**
* Helper to perform standard UNIX daemonization
*/
void daemonize(const char *name)
{
/* Initial fork */
pid_t pid = fork();
if (pid < 0) {
FATAL_ERRORNO("Failed to fork");
}
if (pid != 0) {
LOG_MSG("Daemon launched as %s...\n", name);
exit(EXIT_SUCCESS);
}
/* Fork a second time */
pid = fork();
if (pid < 0) {
FATAL_ERRORNO("Failed to fork");
} else if (pid > 0) {
exit(EXIT_SUCCESS);
}
/* Now continue execution */
umask(0022);
if (setsid() < 0) {
FATAL_ERRORNO("Failed to create process group\n");
}
if (chdir("/") < 0) {
FATAL_ERRORNO("Failed to change to root directory\n");
}
/* replace standard file descriptors by /dev/null */
int devnull_r = open("/dev/null", O_RDONLY);
int devnull_w = open("/dev/null", O_WRONLY);
dup2(devnull_r, STDIN_FILENO);
dup2(devnull_w, STDOUT_FILENO);
dup2(devnull_w, STDERR_FILENO);
close(devnull_r);
close(devnull_w);
}

38
daemon/daemonize.h
View File

@ -1,38 +0,0 @@
/*
Copyright (c) 2017-2019, Feral Interactive
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* 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.
* Neither the name of Feral Interactive nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#pragma once
/**
* Attempt daemonization of the process.
* If this fails, the process will exit
*/
void daemonize(const char *name);

1
daemon/dbus_messaging.c
View File

@ -32,7 +32,6 @@ POSSIBILITY OF SUCH DAMAGE.
#define _GNU_SOURCE
#include "dbus_messaging.h"
#include "daemonize.h"
#include "gamemode.h"
#include "logging.h"

47
daemon/main.c
View File

@ -50,16 +50,18 @@ POSSIBILITY OF SUCH DAMAGE.
#define _GNU_SOURCE
#include "config.h"
#include "daemonize.h"
#include "dbus_messaging.h"
#include "gamemode.h"
#include "gamemode_client.h"
#include "logging.h"
#include <fcntl.h>
#include <getopt.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <systemd/sd-daemon.h>
#include <unistd.h>
@ -95,6 +97,49 @@ static void sigint_handler_noexit(__attribute__((unused)) int signo)
LOG_MSG("Quitting by request...\n");
}
/**
* Helper to perform standard UNIX daemonization
*/
static void daemonize(const char *name)
{
/* Initial fork */
pid_t pid = fork();
if (pid < 0) {
FATAL_ERRORNO("Failed to fork");
}
if (pid != 0) {
LOG_MSG("Daemon launched as %s...\n", name);
exit(EXIT_SUCCESS);
}
/* Fork a second time */
pid = fork();
if (pid < 0) {
FATAL_ERRORNO("Failed to fork");
} else if (pid > 0) {
exit(EXIT_SUCCESS);
}
/* Now continue execution */
umask(0022);
if (setsid() < 0) {
FATAL_ERRORNO("Failed to create process group\n");
}
if (chdir("/") < 0) {
FATAL_ERRORNO("Failed to change to root directory\n");
}
/* replace standard file descriptors by /dev/null */
int devnull_r = open("/dev/null", O_RDONLY);
int devnull_w = open("/dev/null", O_WRONLY);
dup2(devnull_r, STDIN_FILENO);
dup2(devnull_w, STDOUT_FILENO);
dup2(devnull_w, STDERR_FILENO);
close(devnull_r);
close(devnull_w);
}
/**
* Main bootstrap entry into gamemoded
*/

1
daemon/meson.build
View File

@ -27,7 +27,6 @@ daemon_sources = [
'gamemode-wine.c',
'gamemode-tests.c',
'gamemode-gpu.c',
'daemonize.c',
'dbus_messaging.c',
'daemon_config.c',
'helpers.c',