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daemonize work under systemd

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Signed-off-by: Andy Green <andy.green@linaro.org>
This commit is contained in:
Andy Green 2016-02-19 12:44:59 +08:00
parent c1e6e38709
commit 8582d47a00
2 changed files with 12 additions and 11 deletions
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21
lib/daemonize.c
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@ -41,7 +41,7 @@ child_handler(int signum)
switch (signum) {
case SIGALRM: /* timed out daemonizing */
exit(1);
exit(0);
break;
case SIGUSR1: /* positive confirmation we daemonized well */
@ -52,7 +52,7 @@ child_handler(int signum)
fprintf(stderr,
"unable to create lock file %s, code=%d (%s)\n",
lock_path, errno, strerror(errno));
exit(1);
exit(5);
}
len = sprintf(sz, "%u", pid_daemon);
sent = write(fd, sz, len);
@ -62,10 +62,11 @@ child_handler(int signum)
lock_path, errno, strerror(errno));
close(fd);
exit(!!(sent == len));
exit(0);
//!!(sent == len));
case SIGCHLD: /* daemonization failed */
exit(1);
exit(6);
break;
}
}
@ -98,8 +99,8 @@ lws_daemonize(const char *_lock_path)
char buf[10];
/* already a daemon */
if (getppid() == 1)
return 1;
// if (getppid() == 1)
// return 1;
fd = open(_lock_path, O_RDONLY);
if (fd >= 0) {
@ -138,7 +139,7 @@ lws_daemonize(const char *_lock_path)
if (pid_daemon < 0) {
fprintf(stderr, "unable to fork daemon, code=%d (%s)",
errno, strerror(errno));
exit(1);
exit(9);
}
/* If we got a good PID, then we can exit the parent process. */
@ -153,7 +154,7 @@ lws_daemonize(const char *_lock_path)
pause();
/* should not be reachable */
exit(1);
exit(0);
}
/* At this point we are executing as the child process */
@ -176,7 +177,7 @@ lws_daemonize(const char *_lock_path)
fprintf(stderr,
"unable to create a new session, code %d (%s)",
errno, strerror(errno));
exit(1);
exit(2);
}
/*
@ -187,7 +188,7 @@ lws_daemonize(const char *_lock_path)
fprintf(stderr,
"unable to change directory to %s, code %d (%s)",
"/", errno, strerror(errno));
exit(1);
exit(3);
}
/* Redirect standard files to /dev/null */

2
test-server/test-server.c
View file

@ -268,7 +268,7 @@ int main(int argc, char **argv)
*/
if (daemonize && lws_daemonize("/tmp/.lwsts-lock")) {
fprintf(stderr, "Failed to daemonize\n");
return 1;
return 10;
}
#endif