dovecot-2.0: *-login: If connecting to anvil fails with EAGAIN, ...

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.0/rev/199857627883
changeset: 9875:199857627883
user:      Timo Sirainen <tss at iki.fi>
date:      Fri Sep 04 17:06:31 2009 -0400
description:
*-login: If connecting to anvil fails with EAGAIN, try again a few times.

diffstat:

1 file changed, 7 insertions(+), 5 deletions(-)
src/login-common/main.c |   12 +++++++-----

diffs (22 lines):

diff -r 831adf94c39f -r 199857627883 src/login-common/main.c
--- a/src/login-common/main.c	Fri Sep 04 17:05:21 2009 -0400
+++ b/src/login-common/main.c	Fri Sep 04 17:06:31 2009 -0400
@@ -76,11 +76,13 @@ static int anvil_connect(void)
 static int anvil_connect(void)
 {
 #define ANVIL_HANDSHAKE "VERSION\tanvil\t1\t0\n"
-	int fd;
-
-	fd = net_connect_unix("anvil");
-	if (fd < 0)
-		i_fatal("net_connect_unix(anvil) failed: %m");
+	int i = 0, fd;
+
+	while ((fd = net_connect_unix("anvil")) == -1) {
+		if (errno != EAGAIN || ++i == 3)
+			i_fatal("net_connect_unix(anvil) failed: %m");
+		sleep(1);
+	}
 	net_set_nonblock(fd, FALSE);
 
 	if (write(fd, ANVIL_HANDSHAKE, strlen(ANVIL_HANDSHAKE)) < 0)