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[openldap] / 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 #ifdef LDAP_SYNC
69         if ( op->o_sync_state.bv_val != NULL ) {
70                 free( op->o_sync_state.bv_val );
71         }
72 #endif
73
74 #if defined( LDAP_SLAPI )
75         if ( op->o_pb != NULL ) {
76                 slapi_pblock_destroy( (Slapi_PBlock *)op->o_pb );
77         }
78 #endif /* defined( LDAP_SLAPI ) */
79
80         memset( op, 0, sizeof(Operation) );
81         ldap_pvt_thread_mutex_lock( &slap_op_mutex );
82         LDAP_STAILQ_INSERT_HEAD( &slap_free_ops, op, o_next );
83         ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
84 }
85
86 Operation *
87 slap_op_alloc(
88     BerElement          *ber,
89     ber_int_t   msgid,
90     ber_tag_t   tag,
91     ber_int_t   id
92 )
93 {
94         Operation       *op;
95
96         ldap_pvt_thread_mutex_lock( &slap_op_mutex );
97         if ((op = LDAP_STAILQ_FIRST( &slap_free_ops ))) {
98                 LDAP_STAILQ_REMOVE_HEAD( &slap_free_ops, o_next );
99         }
100         ldap_pvt_thread_mutex_unlock( &slap_op_mutex );
101
102         if (!op)
103                 op = (Operation *) ch_calloc( 1, sizeof(Operation) );
104
105         op->o_ber = ber;
106         op->o_msgid = msgid;
107         op->o_tag = tag;
108
109         op->o_time = slap_get_time();
110         op->o_opid = id;
111 #ifdef LDAP_CONNECTIONLESS
112         op->o_res_ber = NULL;
113 #endif
114
115 #if defined( LDAP_SLAPI )
116         op->o_pb = slapi_pblock_new();
117 #endif /* defined( LDAP_SLAPI ) */
118
119         return( op );
120 }