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

   1 /* init.c - initialize various things */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2004 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/string.h>
  33 #include <ac/time.h>
  34
  35 #include "slap.h"
  36 #include "lber_pvt.h"
  37 #ifdef LDAP_SLAPI
  38 #include "slapi/slapi.h"
  39 #endif
  40
  41 /*
  42  * read-only global variables or variables only written by the listener
  43  * thread (after they are initialized) - no need to protect them with a mutex.
  44  */
  45 int             slap_debug = 0;
  46
  47 #ifdef LDAP_DEBUG
  48 int             ldap_syslog = LDAP_DEBUG_STATS;
  49 #else
  50 int             ldap_syslog;
  51 #endif
  52
  53 #ifdef LOG_DEBUG
  54 int             ldap_syslog_level = LOG_DEBUG;
  55 #endif
  56
  57 BerVarray default_referral = NULL;
  58
  59 struct berval AllUser = BER_BVC( LDAP_ALL_USER_ATTRIBUTES );
  60 struct berval AllOper = BER_BVC( LDAP_ALL_OPERATIONAL_ATTRIBUTES );
  61 struct berval NoAttrs = BER_BVC( LDAP_NO_ATTRS );
  62
  63 /*
  64  * global variables that need mutex protection
  65  */
  66 ldap_pvt_thread_pool_t  connection_pool;
  67 int                     connection_pool_max = SLAP_MAX_WORKER_THREADS;
  68 #ifndef HAVE_GMTIME_R
  69 ldap_pvt_thread_mutex_t gmtime_mutex;
  70 #endif
  71 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
  72 ldap_pvt_thread_mutex_t passwd_mutex;
  73 #endif
  74
  75 unsigned long                   num_ops_initiated = 0;
  76 unsigned long                   num_ops_completed = 0;
  77 #ifdef SLAPD_MONITOR
  78 unsigned long                   num_ops_initiated_[SLAP_OP_LAST];
  79 unsigned long                   num_ops_completed_[SLAP_OP_LAST];
  80 #endif /* SLAPD_MONITOR */
  81 ldap_pvt_thread_mutex_t num_ops_mutex;
  82
  83 unsigned long                   num_entries_sent;
  84 unsigned long                   num_refs_sent;
  85 unsigned long                   num_bytes_sent;
  86 unsigned long                   num_pdu_sent;
  87 ldap_pvt_thread_mutex_t num_sent_mutex;
  88 /*
  89  * these mutexes must be used when calling the entry2str()
  90  * routine since it returns a pointer to static data.
  91  */
  92 ldap_pvt_thread_mutex_t entry2str_mutex;
  93 ldap_pvt_thread_mutex_t replog_mutex;
  94
  95 static const char* slap_name = NULL;
  96 int slapMode = SLAP_UNDEFINED_MODE;
  97
  98 int
  99 slap_init( int mode, const char *name )
 100 {
 101         int rc;
 102
 103         assert( mode );
 104
 105         if( slapMode != SLAP_UNDEFINED_MODE ) {
 106                 Debug( LDAP_DEBUG_ANY,
 107                  "%s init: init called twice (old=%d, new=%d)\n",
 108                  name, slapMode, mode );
 109
 110                 return 1;
 111         }
 112
 113         slapMode = mode;
 114
 115         switch ( slapMode & SLAP_MODE ) {
 116                 case SLAP_SERVER_MODE:
 117                 case SLAP_TOOL_MODE:
 118                         Debug( LDAP_DEBUG_TRACE,
 119                                 "%s init: initiated %s.\n",     name,
 120                                 (mode & SLAP_MODE) == SLAP_TOOL_MODE ? "tool" : "server",
 121                                 0 );
 122
 123
 124                         slap_name = name;
 125
 126                         (void) ldap_pvt_thread_initialize();
 127
 128                         ldap_pvt_thread_pool_init( &connection_pool,
 129                                 connection_pool_max, 0);
 130
 131                         ldap_pvt_thread_mutex_init( &entry2str_mutex );
 132                         ldap_pvt_thread_mutex_init( &replog_mutex );
 133                         ldap_pvt_thread_mutex_init( &num_ops_mutex );
 134                         ldap_pvt_thread_mutex_init( &num_sent_mutex );
 135
 136 #ifdef SLAPD_MONITOR
 137                         {
 138                                 int i;
 139                                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 140                                         num_ops_initiated_[ i ] = 0;
 141                                         num_ops_completed_[ i ] = 0;
 142                                 }
 143                         }
 144 #endif
 145
 146 #ifndef HAVE_GMTIME_R
 147                         ldap_pvt_thread_mutex_init( &gmtime_mutex );
 148 #endif
 149 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
 150                         ldap_pvt_thread_mutex_init( &passwd_mutex );
 151 #endif
 152
 153                         rc = slap_sasl_init();
 154
 155                         if( rc == 0 ) {
 156                                 rc = backend_init( );
 157                         }
 158
 159                         break;
 160
 161                 default:
 162                         Debug( LDAP_DEBUG_ANY,
 163                                 "%s init: undefined mode (%d).\n", name, mode, 0 );
 164
 165                         rc = 1;
 166                         break;
 167         }
 168
 169         return rc;
 170 }
 171
 172 int slap_startup( Backend *be )
 173 {
 174         int rc;
 175
 176         Debug( LDAP_DEBUG_TRACE,
 177                 "%s startup: initiated.\n",
 178                 slap_name, 0, 0 );
 179
 180
 181         rc = backend_startup( be );
 182
 183 #ifdef LDAP_SLAPI
 184         if( rc == 0 ) {
 185                 Slapi_PBlock *pb = slapi_pblock_new();
 186
 187                 if ( slapi_int_call_plugins( NULL, SLAPI_PLUGIN_START_FN, pb ) < 0 ) {
 188                         rc = -1;
 189                 }
 190                 slapi_pblock_destroy( pb );
 191         }
 192 #endif /* LDAP_SLAPI */
 193
 194         return rc;
 195 }
 196
 197 int slap_shutdown( Backend *be )
 198 {
 199         int rc;
 200 #ifdef LDAP_SLAPI
 201         Slapi_PBlock *pb;
 202 #endif
 203
 204         Debug( LDAP_DEBUG_TRACE,
 205                 "%s shutdown: initiated\n",
 206                 slap_name, 0, 0 );
 207
 208         /* let backends do whatever cleanup they need to do */
 209         rc = backend_shutdown( be );
 210
 211 #ifdef LDAP_SLAPI
 212         pb = slapi_pblock_new();
 213         (void) slapi_int_call_plugins( NULL, SLAPI_PLUGIN_CLOSE_FN, pb );
 214         slapi_pblock_destroy( pb );
 215 #endif /* LDAP_SLAPI */
 216
 217         return rc;
 218 }
 219
 220 int slap_destroy(void)
 221 {
 222         int rc;
 223
 224         Debug( LDAP_DEBUG_TRACE,
 225                 "%s destroy: freeing system resources.\n",
 226                 slap_name, 0, 0 );
 227
 228
 229         rc = backend_destroy();
 230
 231         slap_sasl_destroy();
 232
 233         entry_destroy();
 234
 235         ldap_pvt_thread_destroy();
 236
 237         /* should destory the above mutex */
 238         return rc;
 239 }