X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fdaemon.c;h=672568342a76c4bf3d3c8f0d22368c8a4eb352fb;hb=6c4ea27c48b30eaec8e37e642d5072f53c5b2670;hp=c4a82647f8ace909101e36d89409a024cce9b70d;hpb=e0edde6fee279cdbbf3c179f5f50adaf0c7c7f1e;p=openvswitch

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)
 {