MEDIUM: listener: support rebinding during resume()
When a listener resumes operations, supporting a full rebind makes it
possible to perform a full stop as a pause(). This will be used for
pausing abstract namespace unix sockets.
diff --git a/src/listener.c b/src/listener.c
index 67f8ca7..11df69f 100644
--- a/src/listener.c
+++ b/src/listener.c
@@ -120,10 +120,26 @@
* may replace enable_listener(). The resulting state will either be LI_READY
* or LI_FULL. 0 is returned in case of failure to resume (eg: dead socket).
* Listeners bound to a different process are not woken up unless we're in
- * foreground mode.
+ * foreground mode. If the listener was only in the assigned state, it's totally
+ * rebound. This can happen if a pause() has completely stopped it. If the
+ * resume fails, 0 is returned and an error might be displayed.
*/
int resume_listener(struct listener *l)
{
+ if (l->state == LI_ASSIGNED) {
+ char msg[100];
+ int err;
+
+ err = l->proto->bind(l, msg, sizeof(msg));
+ if (err & ERR_ALERT)
+ Alert("Resuming listener: %s\n", msg);
+ else if (err & ERR_WARN)
+ Warning("Resuming listener: %s\n", msg);
+
+ if (err & (ERR_FATAL | ERR_ABORT))
+ return 0;
+ }
+
if (l->state < LI_PAUSED)
return 0;