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/* operation.c - routines to deal with pending ldap operations */
/* $OpenLDAP: pkg/ldap/servers/slapd/operation.c,v 1.63.2.7 2006/11/07 04:25:01 hyc Exp $ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2006 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Portions Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#ifdef LDAP_SLAPI
#include "slapi/slapi.h"
#endif
static ldap_pvt_thread_mutex_t slap_op_mutex;
static LDAP_STAILQ_HEAD(s_o, slap_op) slap_free_ops;
static time_t last_time;
static int last_incr;
void slap_op_init(void)
{
ldap_pvt_thread_mutex_init( &slap_op_mutex );
LDAP_STAILQ_INIT(&slap_free_ops);
}
void slap_op_destroy(void)
{
Operation *o;
while ( (o = LDAP_STAILQ_FIRST( &slap_free_ops )) != NULL) {
LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
LDAP_STAILQ_NEXT(o, o_next) = NULL;
ch_free( o );
}
ldap_pvt_thread_mutex_destroy( &slap_op_mutex );
}
void
slap_op_free( Operation *op )
{
assert( LDAP_STAILQ_NEXT(op, o_next) == NULL );
if ( op->o_ber != NULL ) {
ber_free( op->o_ber, 1 );
}
if ( !BER_BVISNULL( &op->o_dn ) ) {
ch_free( op->o_dn.bv_val );
}
if ( !BER_BVISNULL( &op->o_ndn ) ) {
ch_free( op->o_ndn.bv_val );
}
if ( !BER_BVISNULL( &op->o_authmech ) ) {
ch_free( op->o_authmech.bv_val );
}
if ( op->o_ctrls != NULL ) {
slap_free_ctrls( op, op->o_ctrls );
}
#ifdef LDAP_CONNECTIONLESS
if ( op->o_res_ber != NULL ) {
ber_free( op->o_res_ber, 1 );
}
#endif
{
GroupAssertion *g, *n;
for ( g = op->o_groups; g; g = n ) {
n = g->ga_next;
slap_sl_free( g, op->o_tmpmemctx );
}
op->o_groups = NULL;
}
#if defined( LDAP_SLAPI )
if ( slapi_plugins_used ) {
slapi_int_free_object_extensions( SLAPI_X_EXT_OPERATION, op );
}
#endif /* defined( LDAP_SLAPI ) */
memset( op, 0, sizeof(Operation) + sizeof(Opheader) + SLAP_MAX_CIDS * sizeof(void *) );
op->o_hdr = (Opheader *)(op+1);
op->o_controls = (void **)(op->o_hdr+1);
ldap_pvt_thread_mutex_lock( &slap_op_mutex );
LDAP_STAILQ_INSERT_HEAD( &slap_free_ops, op, o_next );
ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
}
void
slap_op_time(time_t *t, int *nop)
{
*t = slap_get_time();
ldap_pvt_thread_mutex_lock( &slap_op_mutex );
if ( *t == last_time ) {
*nop = ++last_incr;
} else {
last_time = *t;
last_incr = 0;
*nop = 0;
}
ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
}
Operation *
slap_op_alloc(
BerElement *ber,
ber_int_t msgid,
ber_tag_t tag,
ber_int_t id
)
{
Operation *op;
ldap_pvt_thread_mutex_lock( &slap_op_mutex );
if ((op = LDAP_STAILQ_FIRST( &slap_free_ops ))) {
LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
}
ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
if (!op) {
op = (Operation *) ch_calloc( 1, sizeof(Operation)
+ sizeof(Opheader) + SLAP_MAX_CIDS * sizeof(void *) );
op->o_hdr = (Opheader *)(op + 1);
op->o_controls = (void **)(op->o_hdr+1);
}
op->o_ber = ber;
op->o_msgid = msgid;
op->o_tag = tag;
slap_op_time( &op->o_time, &op->o_tincr );
op->o_opid = id;
op->o_res_ber = NULL;
#if defined( LDAP_SLAPI )
if ( slapi_plugins_used ) {
slapi_int_create_object_extensions( SLAPI_X_EXT_OPERATION, op );
}
#endif /* defined( LDAP_SLAPI ) */
return( op );
}
slap_op_t
slap_req2op( ber_tag_t tag )
{
switch ( tag ) {
case LDAP_REQ_BIND:
return SLAP_OP_BIND;
case LDAP_REQ_UNBIND:
return SLAP_OP_UNBIND;
case LDAP_REQ_ADD:
return SLAP_OP_ADD;
case LDAP_REQ_DELETE:
return SLAP_OP_DELETE;
case LDAP_REQ_MODRDN:
return SLAP_OP_MODRDN;
case LDAP_REQ_MODIFY:
return SLAP_OP_MODIFY;
case LDAP_REQ_COMPARE:
return SLAP_OP_COMPARE;
case LDAP_REQ_SEARCH:
return SLAP_OP_SEARCH;
case LDAP_REQ_ABANDON:
return SLAP_OP_ABANDON;
case LDAP_REQ_EXTENDED:
return SLAP_OP_EXTENDED;
}
return SLAP_OP_LAST;
}
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