openldap/servers/slapd/back-ldbm/key.c

105 lines
2.0 KiB
C

/* index.c - routines for dealing with attribute indexes */
/* $OpenLDAP$ */
/*
* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-ldbm.h"
/* read a key */
int
key_read(
Backend *be,
DBCache *db,
struct berval *k,
ID_BLOCK **idout
)
{
Datum key;
ID_BLOCK *idl;
#ifdef NEW_LOGGING
LDAP_LOG( INDEX, ENTRY, "key_read: enter\n", 0, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE, "=> key_read\n", 0, 0, 0 );
#endif
ldbm_datum_init( key );
key.dptr = k->bv_val;
key.dsize = k->bv_len;
idl = idl_fetch( be, db, key );
#ifdef NEW_LOGGING
LDAP_LOG( INDEX, ENTRY,
"key_read: %ld candidates\n", idl ? ID_BLOCK_NIDS(idl) : 0, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE, "<= index_read %ld candidates\n",
idl ? ID_BLOCK_NIDS(idl) : 0, 0, 0 );
#endif
*idout = idl;
return LDAP_SUCCESS;
}
/* Add or remove stuff from index files */
int
key_change(
Backend *be,
DBCache *db,
struct berval *k,
ID id,
int op
)
{
int rc;
Datum key;
#ifdef NEW_LOGGING
LDAP_LOG( INDEX, ENTRY, "key_change: %s ID %lx\n",
op == SLAP_INDEX_ADD_OP ? "Add" : "Delete", (long)id, 0 );
#else
Debug( LDAP_DEBUG_TRACE, "=> key_change(%s,%lx)\n",
op == SLAP_INDEX_ADD_OP ? "ADD":"DELETE", (long) id, 0 );
#endif
ldbm_datum_init( key );
key.dptr = k->bv_val;
key.dsize = k->bv_len;
ldap_pvt_thread_mutex_lock( &db->dbc_write_mutex );
if (op == SLAP_INDEX_ADD_OP) {
/* Add values */
rc = idl_insert_key( be, db, key, id );
} else {
/* Delete values */
rc = idl_delete_key( be, db, key, id );
}
ldap_pvt_thread_mutex_unlock( &db->dbc_write_mutex );
#ifdef NEW_LOGGING
LDAP_LOG( INDEX, ENTRY, "key_change: return %d\n", rc, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE, "<= key_change %d\n", rc, 0, 0 );
#endif
ldap_pvt_thread_yield();
return rc;
}