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Rework pre/post read controls to handle retry conditions...

Browse Source 
(and plug leaks)
This commit is contained in:
Kurt Zeilenga 2004-06-23 06:56:23 +00:00
parent e23b0f677f
commit 8bca3b42f9
5 changed files with 91 additions and 31 deletions
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16
servers/slapd/back-bdb/add.c
View File

@ -49,6 +49,7 @@ bdb_add(Operation *op, SlapReply *rs )
Entry *ctxcsn_e;
int ctxcsn_added = 0;
LDAPControl **postread_ctrl = NULL;
LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int num_ctrls = 0;
@ -60,6 +61,8 @@ bdb_add(Operation *op, SlapReply *rs )
op->oq_add.rs_e->e_name.bv_val, 0, 0);
#endif
ctrls[num_ctrls] = 0;
/* check entry's schema */
rs->sr_err = entry_schema_check( op->o_bd, op->oq_add.rs_e,
NULL, &rs->sr_text, textbuf, textlen );
@ -447,8 +450,12 @@ retry: /* transaction retry */
/* post-read */
if( op->o_postread ) {
if( postread_ctrl == NULL ) {
postread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if ( slap_read_controls( op, rs, op->oq_add.rs_e,
&slap_post_read_bv, &ctrls[num_ctrls] ) )
&slap_post_read_bv, postread_ctrl ) )
{
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
@ -459,9 +466,6 @@ retry: /* transaction retry */
#endif
goto return_results;
}
ctrls[++num_ctrls] = NULL;
op->o_postread = 0; /* prevent redo on retry */
/* FIXME: should read entry on the last retry */
}
if ( op->o_noop ) {
@ -557,5 +561,9 @@ done:
op->o_private = NULL;
}
if( postread_ctrl != NULL ) {
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
slap_sl_free( *postread_ctrl, &op->o_tmpmemctx );
}
return rs->sr_err;
}

19
servers/slapd/back-bdb/delete.c
View File

@ -48,14 +48,18 @@ bdb_delete( Operation *op, SlapReply *rs )
Entry *ctxcsn_e;
int ctxcsn_added = 0;
LDAPControl **preread_ctrl = NULL;
LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int num_ctrls = 0;
int parent_is_glue = 0;
int parent_is_leaf = 0;
ctrls[num_ctrls] = 0;
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ARGS, "==> bdb_delete: %s\n", op->o_req_dn.bv_val, 0, 0 );
LDAP_LOG ( OPERATION, ARGS, "==> bdb_delete: %s\n",
op->o_req_dn.bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n",
op->o_req_dn.bv_val, 0, 0 );
@ -346,8 +350,12 @@ retry: /* transaction retry */
/* pre-read */
if( op->o_preread ) {
if( preread_ctrl == NULL ) {
preread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if( slap_read_controls( op, rs, e,
&slap_pre_read_bv, &ctrls[num_ctrls] ) )
&slap_pre_read_bv, preread_ctrl ) )
{
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
@ -358,9 +366,6 @@ retry: /* transaction retry */
#endif
goto return_results;
}
ctrls[++num_ctrls] = NULL;
op->o_preread = 0; /* prevent redo on retry */
/* FIXME: should read entry on the last retry */
}
/* nested transaction */
@ -637,5 +642,9 @@ done:
op->o_private = NULL;
}
if( preread_ctrl != NULL ) {
slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );
}
return rs->sr_err;
}

48
servers/slapd/back-bdb/modify.c
View File

@ -353,6 +353,8 @@ bdb_modify( Operation *op, SlapReply *rs )
int num_retries = 0;
LDAPControl **preread_ctrl = NULL;
LDAPControl **postread_ctrl = NULL;
LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int num_ctrls = 0;
@ -364,11 +366,15 @@ bdb_modify( Operation *op, SlapReply *rs )
int ctxcsn_added = 0;
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ENTRY, "bdb_modify: %s\n", op->o_req_dn.bv_val, 0, 0 );
LDAP_LOG ( OPERATION, ENTRY, "bdb_modify: %s\n",
op->o_req_dn.bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_ARGS, "bdb_modify: %s\n", op->o_req_dn.bv_val, 0, 0 );
Debug( LDAP_DEBUG_ARGS, "bdb_modify: %s\n",
op->o_req_dn.bv_val, 0, 0 );
#endif
ctrls[num_ctrls] = NULL;
if( 0 ) {
retry: /* transaction retry */
if( e != NULL ) {
@ -462,7 +468,9 @@ retry: /* transaction retry */
e = ei->bei_e;
/* acquire and lock entry */
/* FIXME: dn2entry() should return non-glue entry */
if (( rs->sr_err == DB_NOTFOUND ) || ( !manageDSAit && e && is_entry_glue( e ))) {
if (( rs->sr_err == DB_NOTFOUND ) ||
( !manageDSAit && e && is_entry_glue( e )))
{
if ( e != NULL ) {
rs->sr_matched = ch_strdup( e->e_dn );
rs->sr_ref = is_entry_referral( e )
@ -505,7 +513,9 @@ retry: /* transaction retry */
rs->sr_ref = get_entry_referrals( op, e );
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1, "bdb_modify: entry is referral\n", 0, 0, 0 );
LDAP_LOG ( OPERATION, DETAIL1,
"bdb_modify: entry is referral\n",
0, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: entry is referral\n",
@ -538,8 +548,12 @@ retry: /* transaction retry */
}
if( op->o_preread ) {
if( preread_ctrl == NULL ) {
preread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if ( slap_read_controls( op, rs, e,
&slap_pre_read_bv, &ctrls[num_ctrls] ) )
&slap_pre_read_bv, preread_ctrl ) )
{
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
@ -550,9 +564,6 @@ retry: /* transaction retry */
#endif
goto return_results;
}
ctrls[++num_ctrls] = NULL;
op->o_preread = 0; /* prevent redo on retry */
/* FIXME: should read entry on the last retry */
}
/* nested transaction */
@ -562,7 +573,8 @@ retry: /* transaction retry */
if( rs->sr_err != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify: txn_begin(2) failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
"bdb_modify: txn_begin(2) failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: txn_begin(2) failed: %s (%d)\n",
@ -635,8 +647,12 @@ retry: /* transaction retry */
}
if( op->o_postread ) {
if( postread_ctrl == NULL ) {
postread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if( slap_read_controls( op, rs, e,
&slap_post_read_bv, &ctrls[num_ctrls] ) )
&slap_post_read_bv, postread_ctrl ) )
{
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
@ -647,9 +663,6 @@ retry: /* transaction retry */
#endif
goto return_results;
}
ctrls[++num_ctrls] = NULL;
op->o_postread = 0; /* prevent redo on retry */
/* FIXME: should read entry on the last retry */
}
if( op->o_noop ) {
@ -755,5 +768,14 @@ done:
if( e != NULL ) {
bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
}
if( preread_ctrl != NULL ) {
slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );
}
if( postread_ctrl != NULL ) {
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
slap_sl_free( *postread_ctrl, &op->o_tmpmemctx );
}
return rs->sr_err;
}

30
servers/slapd/back-bdb/modrdn.c
View File

@ -60,6 +60,8 @@ bdb_modrdn( Operation *op, SlapReply *rs )
int num_retries = 0;
LDAPControl **preread_ctrl = NULL;
LDAPControl **postread_ctrl = NULL;
LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int num_ctrls = 0;
@ -73,6 +75,8 @@ bdb_modrdn( Operation *op, SlapReply *rs )
int parent_is_glue = 0;
int parent_is_leaf = 0;
ctrls[num_ctrls] = NULL;
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ENTRY, "==>bdb_modrdn(%s,%s,%s)\n",
op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
@ -789,8 +793,12 @@ retry: /* transaction retry */
}
if( op->o_preread ) {
if( preread_ctrl == NULL ) {
preread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if( slap_read_controls( op, rs, e,
&slap_pre_read_bv, &ctrls[num_ctrls] ) )
&slap_pre_read_bv, preread_ctrl ) )
{
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
@ -801,9 +809,6 @@ retry: /* transaction retry */
#endif
goto return_results;
}
ctrls[++num_ctrls] = NULL;
op->o_preread = 0; /* prevent redo on retry */
/* FIXME: should read entry on the last retry */
}
/* nested transaction */
@ -992,8 +997,12 @@ retry: /* transaction retry */
}
if( op->o_postread ) {
if( postread_ctrl == NULL ) {
postread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if( slap_read_controls( op, rs, e,
&slap_post_read_bv, &ctrls[num_ctrls] ) )
&slap_post_read_bv, postread_ctrl ) )
{
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
@ -1004,9 +1013,6 @@ retry: /* transaction retry */
#endif
goto return_results;
}
ctrls[++num_ctrls] = NULL;
op->o_postread = 0; /* prevent redo on retry */
/* FIXME: should read entry on the last retry */
}
if( op->o_noop ) {
@ -1155,5 +1161,13 @@ done:
op->o_private = NULL;
}
if( preread_ctrl != NULL ) {
slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );
}
if( postread_ctrl != NULL ) {
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
slap_sl_free( *postread_ctrl, &op->o_tmpmemctx );
}
return rs->sr_err;
}

9
servers/slapd/result.c
View File

@ -1668,7 +1668,14 @@ int slap_read_controls(
c.ldctl_oid = oid->bv_val;
c.ldctl_iscritical = 0;
*ctrl = slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
if ( ctrl == NULL ) {
/* first try */
*ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
} else {
/* retry: free previous try */
slap_sl_free( (*ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
}
**ctrl = c;
return LDAP_SUCCESS;
}