dovecot-1.0: If connect to auth socket fails with a temporary er...

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-1.0/rev/8f43fd31eb40
changeset: 5427:8f43fd31eb40
user:      Timo Sirainen <tss at iki.fi>
date:      Sun Oct 21 03:00:08 2007 +0300
description:
If connect to auth socket fails with a temporary error, retry max. 10 times.

diffstat:

1 file changed, 13 insertions(+), 5 deletions(-)
src/deliver/auth-client.c |   18 +++++++++++++-----

diffs (28 lines):

diff -r c86684296ce8 -r 8f43fd31eb40 src/deliver/auth-client.c
--- a/src/deliver/auth-client.c	Sun Oct 21 02:20:23 2007 +0300
+++ b/src/deliver/auth-client.c	Sun Oct 21 03:00:08 2007 +0300
@@ -170,11 +170,19 @@ static struct auth_connection *auth_conn
 static struct auth_connection *auth_connection_new(const char *auth_socket)
 {
 	struct auth_connection *conn;
-	int fd;
-
-	fd = net_connect_unix(auth_socket);
-	if (fd < 0) {
-		i_error("net_connect(%s) failed: %m", auth_socket);
+	int fd, try;
+
+	/* max. 1 second wait here. */
+	for (try = 0; try < 10; try++) {
+		fd = net_connect_unix(auth_socket);
+		if (fd != -1 || (errno != EAGAIN && errno != ECONNREFUSED))
+			break;
+
+		/* busy. wait for a while. */
+		usleep(((rand() % 10) + 1) * 10000);
+	}
+	if (fd == -1) {
+		i_error("Can't connect to auth server at %s: %m", auth_socket);
 		return NULL;
 	}