external/bsd/openldap/dist/servers/slapd/back-perl/init.c

   1 /* $OpenLDAP: pkg/ldap/servers/slapd/back-perl/init.c,v 1.44.2.4 2008/02/11 23:26:47 kurt Exp $ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2008 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 John C. Quillan.
   6  * Portions Copyright 2002 myinternet Limited.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17
  18 #include "perl_back.h"
  19 #include "../config.h"
  20
  21 static void perl_back_xs_init LDAP_P((PERL_BACK_XS_INIT_PARAMS));
  22 EXT void boot_DynaLoader LDAP_P((PERL_BACK_BOOT_DYNALOADER_PARAMS));
  23
  24 PerlInterpreter *PERL_INTERPRETER = NULL;
  25 ldap_pvt_thread_mutex_t perl_interpreter_mutex;
  26
  27
  28 /**********************************************************
  29  *
  30  * Init
  31  *
  32  **********************************************************/
  33
  34 int
  35 perl_back_initialize(
  36         BackendInfo     *bi
  37 )
  38 {
  39         char *embedding[] = { "", "-e", "0" };
  40
  41         bi->bi_open = NULL;
  42         bi->bi_config = 0;
  43         bi->bi_close = perl_back_close;
  44         bi->bi_destroy = 0;
  45
  46         bi->bi_db_init = perl_back_db_init;
  47         bi->bi_db_config = perl_back_db_config;
  48         bi->bi_db_open = perl_back_db_open;
  49         bi->bi_db_close = 0;
  50         bi->bi_db_destroy = perl_back_db_destroy;
  51
  52         bi->bi_op_bind = perl_back_bind;
  53         bi->bi_op_unbind = 0;
  54         bi->bi_op_search = perl_back_search;
  55         bi->bi_op_compare = perl_back_compare;
  56         bi->bi_op_modify = perl_back_modify;
  57         bi->bi_op_modrdn = perl_back_modrdn;
  58         bi->bi_op_add = perl_back_add;
  59         bi->bi_op_delete = perl_back_delete;
  60         bi->bi_op_abandon = 0;
  61
  62         bi->bi_extended = 0;
  63
  64         bi->bi_chk_referrals = 0;
  65
  66         bi->bi_connection_init = 0;
  67         bi->bi_connection_destroy = 0;
  68
  69         /* injecting code from perl_back_open, because using fonction reference  (bi->bi_open) is not functional */
  70         Debug( LDAP_DEBUG_TRACE, "perl backend open\n", 0, 0, 0 );
  71
  72         if( PERL_INTERPRETER != NULL ) {
  73                 Debug( LDAP_DEBUG_ANY, "perl backend open: already opened\n",
  74                         0, 0, 0 );
  75                 return 1;
  76         }
  77
  78         ldap_pvt_thread_mutex_init( &perl_interpreter_mutex );
  79
  80         PERL_INTERPRETER = perl_alloc();
  81         perl_construct(PERL_INTERPRETER);
  82         perl_parse(PERL_INTERPRETER, perl_back_xs_init, 3, embedding, (char **)NULL);
  83         perl_run(PERL_INTERPRETER);
  84         return 0;
  85 }
  86
  87 int
  88 perl_back_db_init(
  89         BackendDB       *be,
  90         ConfigReply     *cr
  91 )
  92 {
  93         be->be_private = (PerlBackend *) ch_malloc( sizeof(PerlBackend) );
  94         memset( be->be_private, '\0', sizeof(PerlBackend));
  95
  96         ((PerlBackend *)be->be_private)->pb_filter_search_results = 0;
  97
  98         Debug( LDAP_DEBUG_TRACE, "perl backend db init\n", 0, 0, 0 );
  99
 100         return 0;
 101 }
 102
 103 int
 104 perl_back_db_open(
 105         BackendDB       *be,
 106         ConfigReply     *cr
 107 )
 108 {
 109         int count;
 110         int return_code;
 111
 112         PerlBackend *perl_back = (PerlBackend *) be->be_private;
 113
 114         ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );
 115
 116         {
 117                 dSP; ENTER; SAVETMPS;
 118
 119                 PUSHMARK(sp);
 120                 XPUSHs( perl_back->pb_obj_ref );
 121
 122                 PUTBACK;
 123
 124 #ifdef PERL_IS_5_6
 125                 count = call_method("init", G_SCALAR);
 126 #else
 127                 count = perl_call_method("init", G_SCALAR);
 128 #endif
 129
 130                 SPAGAIN;
 131
 132                 if (count != 1) {
 133                         croak("Big trouble in perl_back_db_open\n");
 134                 }
 135
 136                 return_code = POPi;
 137
 138                 PUTBACK; FREETMPS; LEAVE;
 139         }
 140
 141         ldap_pvt_thread_mutex_unlock( &perl_interpreter_mutex );
 142
 143         return return_code;
 144 }
 145
 146
 147 static void
 148 perl_back_xs_init(PERL_BACK_XS_INIT_PARAMS)
 149 {
 150         char *file = __FILE__;
 151         dXSUB_SYS;
 152         newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
 153 }
 154
 155 #if SLAPD_PERL == SLAPD_MOD_DYNAMIC
 156
 157 /* conditionally define the init_module() function */
 158 SLAP_BACKEND_INIT_MODULE( perl )
 159
 160 #endif /* SLAPD_PERL == SLAPD_MOD_DYNAMIC */
 161
 162