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author | Ben Pfaff <blp@nicira.com> | 2012-05-14 14:21:18 -0700 |
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committer | Ben Pfaff <blp@nicira.com> | 2012-05-14 14:21:18 -0700 |
commit | e6c5e5390395a2ef19676319caa97b4e5a6942e2 (patch) | |
tree | c7d437bb0a52c0a37abf755648419c59b93e77b0 | |
parent | 7dea6ace339f1a7433040f590feb3b2d19089af5 (diff) | |
download | openvswitch-e6c5e5390395a2ef19676319caa97b4e5a6942e2.tar.gz |
daemon: Add comment.
Signed-off-by: Ben Pfaff <blp@nicira.com>
-rw-r--r-- | lib/daemon.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/daemon.c b/lib/daemon.c index c4a82647f..672568342 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) { |