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         assert( LDAP_STAILQ_NEXT(op, o_next) == NULL );
  46
  47         if ( op->o_ber != NULL ) {
  48                 ber_free( op->o_ber, 1 );
  49         }
  50         if ( op->o_dn.bv_val != NULL ) {
  51                 free( op->o_dn.bv_val );
  52         }
  53         if ( op->o_ndn.bv_val != NULL ) {
  54                 free( op->o_ndn.bv_val );
  55         }
  56         if ( op->o_authmech.bv_val != NULL ) {
  57                 free( op->o_authmech.bv_val );
  58         }
  59         if ( op->o_ctrls != NULL ) {
  60                 slap_free_ctrls( op, op->o_ctrls );
  61         }
  62
  63 #ifdef LDAP_CONNECTIONLESS
  64         if ( op->o_res_ber != NULL ) {
  65                 ber_free( op->o_res_ber, 1 );
  66         }
  67 #endif
  68         if ( op->o_sync_state.bv_val != NULL ) {
  69                 free( op->o_sync_state.bv_val );
  70         }
  71
  72 #if 0   /* needless, since it was allocated in tmpmem */
  73         {
  74                 GroupAssertion *g, *n;
  75                 for (g = op->o_groups; g; g=n) {
  76                         n = g->ga_next;
  77                         free(g);
  78                 }
  79                 op->o_groups = NULL;
  80         }
  81 #endif
  82
  83 #if defined( LDAP_SLAPI )
  84         if ( op->o_pb != NULL ) {
  85                 slapi_pblock_destroy( (Slapi_PBlock *)op->o_pb );
  86         }
  87         slapi_x_free_object_extensions( SLAPI_X_EXT_OPERATION, op );
  88 #endif /* defined( LDAP_SLAPI ) */
  89
  90         memset( op, 0, sizeof(Operation) );
  91         ldap_pvt_thread_mutex_lock( &slap_op_mutex );
  92         LDAP_STAILQ_INSERT_HEAD( &slap_free_ops, op, o_next );
  93         ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
  94 }
  95
  96 Operation *
  97 slap_op_alloc(
  98     BerElement          *ber,
  99     ber_int_t   msgid,
 100     ber_tag_t   tag,
 101     ber_int_t   id
 102 )
 103 {
 104         Operation       *op;
 105
 106         ldap_pvt_thread_mutex_lock( &slap_op_mutex );
 107         if ((op = LDAP_STAILQ_FIRST( &slap_free_ops ))) {
 108                 LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
 109         }
 110         ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
 111
 112         if (!op)
 113                 op = (Operation *) ch_calloc( 1, sizeof(Operation) );
 114
 115         op->o_ber = ber;
 116         op->o_msgid = msgid;
 117         op->o_tag = tag;
 118
 119         op->o_time = slap_get_time();
 120         op->o_opid = id;
 121         op->o_res_ber = NULL;
 122
 123 #if defined( LDAP_SLAPI )
 124         op->o_pb = slapi_pblock_new();
 125         slapi_x_create_object_extensions( SLAPI_X_EXT_OPERATION, op );
 126 #endif /* defined( LDAP_SLAPI ) */
 127
 128         return( op );
 129 }