mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
279760a467
- memory based session history to minimize sync traffic
- when client is covered by a session history, then
[add+delete] mode is used
- when client cookie is not covered by the history because
the cookie is too outdated and/or the history is truncated,
[add+present] mode is used
2. Sync cookie syntax : comma separated name=value pairs
- csn=yyyymmddhh:mm:ssZ#0xSSSS#r#ssssr,sid=nnn
145 lines
3.0 KiB
C
145 lines
3.0 KiB
C
/* operation.c - routines to deal with pending ldap operations */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#ifdef LDAP_SLAPI
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#include "slapi.h"
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#endif
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static ldap_pvt_thread_mutex_t slap_op_mutex;
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static LDAP_STAILQ_HEAD(s_o, slap_op) slap_free_ops;
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void slap_op_init(void)
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{
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ldap_pvt_thread_mutex_init( &slap_op_mutex );
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LDAP_STAILQ_INIT(&slap_free_ops);
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}
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void slap_op_destroy(void)
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{
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Operation *o;
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while ( (o = LDAP_STAILQ_FIRST( &slap_free_ops )) != NULL) {
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LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
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LDAP_STAILQ_NEXT(o, o_next) = NULL;
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ch_free( o );
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}
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ldap_pvt_thread_mutex_destroy( &slap_op_mutex );
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}
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void
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slap_op_free( Operation *op )
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{
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struct berval slap_empty_bv_dup;
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assert( LDAP_STAILQ_NEXT(op, o_next) == NULL );
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if ( op->o_ber != NULL ) {
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ber_free( op->o_ber, 1 );
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}
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if ( op->o_dn.bv_val != NULL ) {
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free( op->o_dn.bv_val );
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}
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if ( op->o_ndn.bv_val != NULL ) {
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free( op->o_ndn.bv_val );
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}
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if ( op->o_authmech.bv_val != NULL ) {
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free( op->o_authmech.bv_val );
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}
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if ( op->o_ctrls != NULL ) {
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slap_free_ctrls( op, op->o_ctrls );
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}
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#ifdef LDAP_CONNECTIONLESS
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if ( op->o_res_ber != NULL ) {
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ber_free( op->o_res_ber, 1 );
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}
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#endif
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slap_sync_cookie_free( &op->o_sync_state, 0 );
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{
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GroupAssertion *g, *n;
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for (g = op->o_groups; g; g=n) {
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n = g->ga_next;
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sl_free(g, op->o_tmpmemctx);
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}
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op->o_groups = NULL;
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}
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#if defined( LDAP_SLAPI )
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if ( op->o_pb != NULL ) {
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slapi_pblock_destroy( (Slapi_PBlock *)op->o_pb );
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slapi_x_free_object_extensions( SLAPI_X_EXT_OPERATION, op );
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}
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#endif /* defined( LDAP_SLAPI ) */
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if ( op->o_sync_csn.bv_val != NULL ) {
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ch_free( op->o_sync_csn.bv_val );
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}
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memset( op, 0, sizeof(Operation) );
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op->o_sync_state.sid = -1;
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op->o_sync_slog_size = -1;
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ldap_pvt_thread_mutex_lock( &slap_op_mutex );
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LDAP_STAILQ_INSERT_HEAD( &slap_free_ops, op, o_next );
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ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
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}
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Operation *
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slap_op_alloc(
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BerElement *ber,
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ber_int_t msgid,
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ber_tag_t tag,
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ber_int_t id
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)
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{
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Operation *op;
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struct berval slap_empty_bv_dup;
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ldap_pvt_thread_mutex_lock( &slap_op_mutex );
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if ((op = LDAP_STAILQ_FIRST( &slap_free_ops ))) {
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LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
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}
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ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
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if (!op) {
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op = (Operation *) ch_calloc( 1, sizeof(Operation) );
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}
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op->o_ber = ber;
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op->o_msgid = msgid;
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op->o_tag = tag;
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op->o_time = slap_get_time();
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op->o_opid = id;
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op->o_res_ber = NULL;
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op->o_sync_state.sid = -1;
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op->o_sync_slog_size = -1;
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LDAP_STAILQ_FIRST( &op->o_sync_slog_list ) = NULL;
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op->o_sync_slog_list.stqh_last = &LDAP_STAILQ_FIRST( &op->o_sync_slog_list );
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#if defined( LDAP_SLAPI )
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if ( slapi_plugins_used ) {
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op->o_pb = slapi_pblock_new();
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slapi_x_create_object_extensions( SLAPI_X_EXT_OPERATION, op );
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}
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#endif /* defined( LDAP_SLAPI ) */
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return( op );
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}
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