ITS#9555 Introduce a default operations timeout for back-asyncmeta

doc/man/man5/slapd-asyncmeta.5

@@ -446,6 +446,8 @@ Operations can be
 
 \fB<op> ::= bind, add, delete, modrdn, modify, compare, search\fP
 
+By default, the timeout for all operations is 2 seconds.
+
 See
 .B slapd\-meta(5)
 for details.

servers/slapd/back-asyncmeta/back-asyncmeta.h

@@ -326,8 +326,10 @@ typedef struct a_metatarget_t {
 #define	META_BACK_TGT_NOREFS(mt)		META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_NOREFS )
 #define	META_BACK_TGT_NOUNDEFFILTER(mt)		META_BACK_TGT_ISSET( (mt), LDAP_BACK_F_NOUNDEFFILTER )
 
-#define META_BACK_CFG_MAX_PENDING_OPS          0x80
+#define META_BACK_CFG_MAX_PENDING_OPS           0x80
 #define META_BACK_CFG_MAX_TARGET_CONNS          0xFF
+#define META_BACK_CFG_DEFAULT_OPS_TIMEOUT       0x02
+
 /* the interval of the timeout checking loop in microseconds
  * possibly make this configurable? */
 #define META_BACK_CFG_MAX_TIMEOUT_LOOP          0x70000

servers/slapd/back-asyncmeta/config.c

@@ -1177,7 +1177,7 @@ asyncmeta_back_cf_gen( ConfigArgs *c )
 
 		case LDAP_BACK_CFG_TIMEOUT:
 			for ( i = 0; i < SLAP_OP_LAST; i++ ) {
-				if ( mc->mc_timeout[ i ] != 0 ) {
+				if ( mc->mc_timeout[ i ] != META_BACK_CFG_DEFAULT_OPS_TIMEOUT ) {
 					break;
 				}
 			}

servers/slapd/back-asyncmeta/init.c

@@ -149,6 +149,10 @@ asyncmeta_back_db_init(
 	mi->mi_nretries = META_RETRY_DEFAULT;
 	mi->mi_version = LDAP_VERSION3;
 
+	for ( i = 0; i < SLAP_OP_LAST; i++ ) {
+		mi->mi_timeout[ i ] = META_BACK_CFG_DEFAULT_OPS_TIMEOUT;
+	}
+
 	for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 		mi->mi_conn_priv[ i ].mic_num = 0;
 		LDAP_TAILQ_INIT( &mi->mi_conn_priv[ i ].mic_priv );