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MINOR: startup: refactor "daemonization" fork

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Let's put "daemonization" fork into a switch-case. This is more readable and we
don't need to allocate memory for the fork() return value here.
This commit is contained in:
Valentine Krasnobaeva 2024-06-27 18:16:40 +02:00 committed by Willy Tarreau
parent 90b8181c0a
commit 95c19be2ab
1 changed files with 12 additions and 4 deletions
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16
src/haproxy.c
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@ -2121,14 +2121,22 @@ static void init(int argc, char **argv)
if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL) && if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL) &&
(global.mode & MODE_DAEMON)) { (global.mode & MODE_DAEMON)) {
ret = fork(); ret = fork();
if (ret < 0) { switch(ret) {
case -1:
ha_alert("[%s.main()] Cannot fork.\n", argv[0]); ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
protocol_unbind_all(); protocol_unbind_all();
exit(1); /* there has been an error */ exit(1); /* there has been an error */
} else if (ret > 0) { /* parent leave to daemonize */ case 0:
exit(0); /* in child, change the process group ID, in the master-worker
} else /* change the process group ID in the child (master process) */ * mode, this will be the master process
*/
setsid(); setsid();
break;
default:
/* in parent, which leaves to daemonize */
exit(0);
}
} }
if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT))