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More locking cleanup (ITS#3201, etc)

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This commit is contained in:
Howard Chu 2004-06-25 05:29:33 +00:00
parent 22df3f94e4
commit 826b177877
4 changed files with 52 additions and 39 deletions
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1
servers/slapd/back-bdb/cache.c
View File

@ -763,6 +763,7 @@ bdb_cache_add(
ei.bei_id = e->e_id;
ei.bei_parent = eip;
ei.bei_nrdn = *nrdn;
ei.bei_lockpad = 0;
/* Lock this entry so that bdb_add can run to completion.
* It can only fail if BDB has run out of lock resources.

24
servers/slapd/back-bdb/delete.c
View File

@ -71,6 +71,10 @@ retry: /* transaction retry */
bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
e = NULL;
}
if( p != NULL ) {
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
}
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
"==> bdb_delete: retrying...\n", 0, 0, 0 );
@ -201,7 +205,17 @@ retry: /* transaction retry */
goto done;
}
bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
if ( rc ) {
switch( rc ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
if ( eip ) p = eip->bei_e;
if ( pdn.bv_len != 0 ) {
@ -223,9 +237,6 @@ retry: /* transaction retry */
rs->sr_err = access_allowed( op, p,
children, NULL, ACL_WRITE, NULL );
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
if ( !rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
@ -487,8 +498,6 @@ retry: /* transaction retry */
goto return_results;
}
bdb_cache_find_id( op, lt2, eip->bei_id, &eip, 0, locker, &plock );
if ( eip ) p = eip->bei_e;
if ( pdn.bv_len != 0 ) {
parent_is_glue = is_entry_glue(p);
rs->sr_err = bdb_cache_children( op, lt2, p );
@ -627,6 +636,9 @@ return_results:
}
done:
if ( p )
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
/* free entry */
if( e != NULL ) {
if ( rs->sr_err == LDAP_SUCCESS ) {

12
servers/slapd/back-bdb/dn2entry.c
View File

@ -38,7 +38,7 @@ bdb_dn2entry(
DB_LOCK *lock )
{
EntryInfo *ei = NULL;
int rc;
int rc, rc2;
#ifdef NEW_LOGGING
LDAP_LOG ( CACHE, ARGS, "bdb_dn2entry(\"%s\")\n", dn->bv_val, 0, 0 );
@ -56,10 +56,11 @@ bdb_dn2entry(
* or not.
*/
*e = ei;
if ( ei && ei->bei_id )
bdb_cache_find_id( op, tid, ei->bei_id,
if ( ei && ei->bei_id ) {
rc2 = bdb_cache_find_id( op, tid, ei->bei_id,
&ei, 1, locker, lock );
else if ( ei )
if ( rc2 ) rc = rc2;
} else if ( ei )
bdb_cache_entryinfo_unlock( ei );
} else if ( ei ) {
bdb_cache_entryinfo_unlock( ei );
@ -72,8 +73,9 @@ bdb_dn2entry(
} else if ( matched && rc == DB_NOTFOUND ) {
/* always return EntryInfo */
ei = ei->bei_parent;
bdb_cache_find_id( op, tid, ei->bei_id, &ei, 1,
rc2 = bdb_cache_find_id( op, tid, ei->bei_id, &ei, 1,
locker, lock );
if ( rc2 ) rc = rc2;
*e = ei;
}
}

54
servers/slapd/back-bdb/modrdn.c
View File

@ -947,37 +947,35 @@ retry: /* transaction retry */
goto return_results;
}
bdb_cache_find_id( op, lt2, eip->bei_id, &eip, 0, locker, &plock );
if ( eip ) p = eip->bei_e;
if ( p_ndn.bv_len != 0 ) {
parent_is_glue = is_entry_glue(p);
rs->sr_err = bdb_cache_children( op, lt2, p );
if ( rs->sr_err != DB_NOTFOUND ) {
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case 0:
break;
default:
if ( p_ndn.bv_len != 0 ) {
parent_is_glue = is_entry_glue(p);
rs->sr_err = bdb_cache_children( op, lt2, p );
if ( rs->sr_err != DB_NOTFOUND ) {
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case 0:
break;
default:
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"<=- bdb_modrdn: has_children failed %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
LDAP_LOG ( OPERATION, ERR,
"<=- bdb_modrdn: has_children failed %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
#else
Debug(LDAP_DEBUG_ARGS,
"<=- bdb_modrdn: has_children failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
Debug(LDAP_DEBUG_ARGS,
"<=- bdb_modrdn: has_children failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
#endif
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
parent_is_leaf = 1;
}
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
}
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
parent_is_leaf = 1;
}
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
}
if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
rs->sr_err = LDAP_OTHER;