From e6c5e5390395a2ef19676319caa97b4e5a6942e2 Mon Sep 17 00:00:00 2001 From: Ben Pfaff Date: Mon, 14 May 2012 14:21:18 -0700 Subject: [PATCH] daemon: Add comment. Signed-off-by: Ben Pfaff --- lib/daemon.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/lib/daemon.c b/lib/daemon.c index c4a82647..67256834 100644 --- a/lib/daemon.c +++ b/lib/daemon.c @@ -245,6 +245,17 @@ daemonize(void) daemonize_complete(); } +/* Forks, then: + * + * - In the parent, waits for the child to signal that it has completed its + * startup sequence. Then stores -1 in '*fdp' and returns the child's pid. + * + * - In the child, stores a fd in '*fdp' and returns 0. The caller should + * pass the fd to fork_notify_startup() after it finishes its startup + * sequence. + * + * If something goes wrong with the fork, logs a critical error and aborts the + * process. */ static pid_t fork_and_wait_for_startup(int *fdp) { -- 2.30.2