git.sur5r.net Git - openldap/blob - servers/slapd/operation.c

   1 /* operation.c - routines to deal with pending ldap operations */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/string.h>
  13 #include <ac/socket.h>
  14
  15 #include "slap.h"
  16
  17 #ifdef LDAP_SLAPI
  18 #include "slapi.h"
  19 #endif
  20
  21 static ldap_pvt_thread_mutex_t  slap_op_mutex;
  22 static LDAP_STAILQ_HEAD(s_o, slap_op)   slap_free_ops;
  23
  24 void slap_op_init(void)
  25 {
  26         ldap_pvt_thread_mutex_init( &slap_op_mutex );
  27         LDAP_STAILQ_INIT(&slap_free_ops);
  28 }
  29
  30 void slap_op_destroy(void)
  31 {
  32         Operation *o;
  33
  34         while ( (o = LDAP_STAILQ_FIRST( &slap_free_ops )) != NULL) {
  35                 LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
  36                 LDAP_STAILQ_NEXT(o, o_next) = NULL;
  37                 ch_free( o );
  38         }
  39         ldap_pvt_thread_mutex_destroy( &slap_op_mutex );
  40 }
  41
  42 void
  43 slap_op_free( Operation *op )
  44 {
  45         struct berval slap_empty_bv_dup;
  46
  47         assert( LDAP_STAILQ_NEXT(op, o_next) == NULL );
  48
  49         if ( op->o_ber != NULL ) {
  50                 ber_free( op->o_ber, 1 );
  51         }
  52         if ( op->o_dn.bv_val != NULL ) {
  53                 free( op->o_dn.bv_val );
  54         }
  55         if ( op->o_ndn.bv_val != NULL ) {
  56                 free( op->o_ndn.bv_val );
  57         }
  58         if ( op->o_authmech.bv_val != NULL ) {
  59                 free( op->o_authmech.bv_val );
  60         }
  61         if ( op->o_ctrls != NULL ) {
  62                 slap_free_ctrls( op, op->o_ctrls );
  63         }
  64
  65 #ifdef LDAP_CONNECTIONLESS
  66         if ( op->o_res_ber != NULL ) {
  67                 ber_free( op->o_res_ber, 1 );
  68         }
  69 #endif
  70
  71         slap_sync_cookie_free( &op->o_sync_state, 0 );
  72
  73         {
  74                 GroupAssertion *g, *n;
  75                 for (g = op->o_groups; g; g=n) {
  76                         n = g->ga_next;
  77                         sl_free(g, op->o_tmpmemctx);
  78                 }
  79                 op->o_groups = NULL;
  80         }
  81
  82 #if defined( LDAP_SLAPI )
  83         if ( op->o_pb != NULL ) {
  84                 slapi_pblock_destroy( (Slapi_PBlock *)op->o_pb );
  85                 slapi_x_free_object_extensions( SLAPI_X_EXT_OPERATION, op );
  86         }
  87 #endif /* defined( LDAP_SLAPI ) */
  88
  89         if ( op->o_sync_csn.bv_val != NULL ) {
  90                 ch_free( op->o_sync_csn.bv_val );
  91         }
  92
  93         memset( op, 0, sizeof(Operation) );
  94
  95         op->o_sync_state.sid = -1;
  96         op->o_sync_slog_size = -1;
  97         op->o_sync_state.rid = -1;
  98         ldap_pvt_thread_mutex_lock( &slap_op_mutex );
  99         LDAP_STAILQ_INSERT_HEAD( &slap_free_ops, op, o_next );
 100         ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
 101 }
 102
 103 Operation *
 104 slap_op_alloc(
 105     BerElement          *ber,
 106     ber_int_t   msgid,
 107     ber_tag_t   tag,
 108     ber_int_t   id
 109 )
 110 {
 111         Operation       *op;
 112         struct berval slap_empty_bv_dup;
 113
 114         ldap_pvt_thread_mutex_lock( &slap_op_mutex );
 115         if ((op = LDAP_STAILQ_FIRST( &slap_free_ops ))) {
 116                 LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
 117         }
 118         ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
 119
 120         if (!op) {
 121                 op = (Operation *) ch_calloc( 1, sizeof(Operation) );
 122         }
 123
 124         op->o_ber = ber;
 125         op->o_msgid = msgid;
 126         op->o_tag = tag;
 127
 128         op->o_time = slap_get_time();
 129         op->o_opid = id;
 130         op->o_res_ber = NULL;
 131
 132         op->o_sync_state.sid = -1;
 133         op->o_sync_slog_size = -1;
 134         op->o_sync_state.rid = -1;
 135         LDAP_STAILQ_FIRST( &op->o_sync_slog_list ) = NULL;
 136         op->o_sync_slog_list.stqh_last = &LDAP_STAILQ_FIRST( &op->o_sync_slog_list );
 137
 138 #if defined( LDAP_SLAPI )
 139         if ( slapi_plugins_used ) {
 140                 op->o_pb = slapi_pblock_new();
 141                 slapi_x_create_object_extensions( SLAPI_X_EXT_OPERATION, op );
 142         }
 143 #endif /* defined( LDAP_SLAPI ) */
 144
 145         return( op );
 146 }