uhliarik commented on code in PR #44:
URL: https://github.com/apache/apr/pull/44#discussion_r1243494966
##########
memcache/apr_memcache.c:
##########
@@ -346,18 +346,37 @@ APR_DECLARE(apr_status_t)
apr_memcache_disable_server(apr_memcache_t *mc, apr_me
return make_server_dead(mc, ms);
}
-static apr_status_t conn_connect(apr_memcache_conn_t *conn, apr_sockaddr_t *sa)
+static apr_status_t conn_connect(apr_memcache_conn_t *conn)
{
apr_status_t rv = APR_SUCCESS;
+ apr_sockaddr_t *sa;
+#if APR_HAVE_SOCKADDR_UN
+ apr_int32_t family = conn->ms->host[0] != '/' ? APR_UNSPEC : APR_UNIX;
+#else
+ apr_int32_t family = APR_UNSPEC;
+#endif
- rv = apr_socket_timeout_set(conn->sock, 1 * APR_USEC_PER_SEC);
+ rv = apr_sockaddr_info_get(&sa, conn->ms->host, family, conn->ms->port, 0,
conn->p);
if (rv != APR_SUCCESS) {
return rv;
}
- rv = apr_socket_connect(conn->sock, sa);
- if (rv != APR_SUCCESS) {
- return rv;
+ /* Cycle through address until a connect() succeeds. */
+ for (; sa; sa = sa->next) {
+ rv = apr_socket_create(&conn->sock, sa->family, SOCK_STREAM, 0,
conn->p);
+ if (rv == APR_SUCCESS) {
+ rv = apr_socket_timeout_set(conn->sock, 1 * APR_USEC_PER_SEC);
+ if (rv != APR_SUCCESS) {
+ return rv;
+ }
+
+ rv = apr_socket_connect(conn->sock, sa);
+ if (rv == APR_SUCCESS) {
+ break;
+ }
+
+ apr_socket_close(conn->sock);
+ }
}
Review Comment:
This would also work IMHO. I think, since we set apr_socket_timeout_set on
closed socket, it would fail anyway... But it is better way how to handle it to
explicitly say what we were not able to connect to any of given addresses.
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