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Code Issues Releases Wiki Activity

daemonize work under systemd

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Signed-off-by: Andy Green <andy.green@linaro.org>
This commit is contained in:
Andy Green 2016-02-20 08:04:32 +08:00
parent 3310dd19b5
commit df9be06522
2 changed files with 12 additions and 11 deletions
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21
lib/daemonize.c
View file

@ -41,7 +41,7 @@ child_handler(int signum)
switch (signum) { switch (signum) {
case SIGALRM: /* timed out daemonizing */ case SIGALRM: /* timed out daemonizing */
exit(1); exit(0);
break; break;
case SIGUSR1: /* positive confirmation we daemonized well */ case SIGUSR1: /* positive confirmation we daemonized well */
@ -52,7 +52,7 @@ child_handler(int signum)
fprintf(stderr, fprintf(stderr,
"unable to create lock file %s, code=%d (%s)\n", "unable to create lock file %s, code=%d (%s)\n",
lock_path, errno, strerror(errno)); lock_path, errno, strerror(errno));
exit(1); exit(5);
} }
len = sprintf(sz, "%u", pid_daemon); len = sprintf(sz, "%u", pid_daemon);
sent = write(fd, sz, len); sent = write(fd, sz, len);
@ -62,10 +62,11 @@ child_handler(int signum)
lock_path, errno, strerror(errno)); lock_path, errno, strerror(errno));
close(fd); close(fd);
exit(!!(sent == len)); exit(0);
//!!(sent == len));
case SIGCHLD: /* daemonization failed */ case SIGCHLD: /* daemonization failed */
exit(1); exit(6);
break; break;
} }
} }
@ -98,8 +99,8 @@ lws_daemonize(const char *_lock_path)
char buf[10]; char buf[10];
/* already a daemon */ /* already a daemon */
if (getppid() == 1) // if (getppid() == 1)
return 1; // return 1;
fd = open(_lock_path, O_RDONLY); fd = open(_lock_path, O_RDONLY);
if (fd >= 0) { if (fd >= 0) {
@ -138,7 +139,7 @@ lws_daemonize(const char *_lock_path)
if (pid_daemon < 0) { if (pid_daemon < 0) {
fprintf(stderr, "unable to fork daemon, code=%d (%s)", fprintf(stderr, "unable to fork daemon, code=%d (%s)",
errno, strerror(errno)); errno, strerror(errno));
exit(1); exit(9);
} }
/* If we got a good PID, then we can exit the parent process. */ /* If we got a good PID, then we can exit the parent process. */
@ -153,7 +154,7 @@ lws_daemonize(const char *_lock_path)
pause(); pause();
/* should not be reachable */ /* should not be reachable */
exit(1); exit(0);
} }
/* At this point we are executing as the child process */ /* At this point we are executing as the child process */
@ -176,7 +177,7 @@ lws_daemonize(const char *_lock_path)
fprintf(stderr, fprintf(stderr,
"unable to create a new session, code %d (%s)", "unable to create a new session, code %d (%s)",
errno, strerror(errno)); errno, strerror(errno));
exit(1); exit(2);
} }
/* /*
@ -187,7 +188,7 @@ lws_daemonize(const char *_lock_path)
fprintf(stderr, fprintf(stderr,
"unable to change directory to %s, code %d (%s)", "unable to change directory to %s, code %d (%s)",
"/", errno, strerror(errno)); "/", errno, strerror(errno));
exit(1); exit(3);
} }
/* Redirect standard files to /dev/null */ /* 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")) { if (daemonize && lws_daemonize("/tmp/.lwsts-lock")) {
fprintf(stderr, "Failed to daemonize\n"); fprintf(stderr, "Failed to daemonize\n");
return 1; return 10;
} }
#endif #endif