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[openldap] / servers / slapd / back-perl / init.c
1 /* $OpenLDAP$ */
2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
3  *
4  * Copyright 1999-2004 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 "external.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         Debug( LDAP_DEBUG_TRACE, "perl backend open\n", 0, 0, 0 );
42
43         if( PERL_INTERPRETER != NULL ) {
44                 Debug( LDAP_DEBUG_ANY, "perl backend open: already opened\n",
45                         0, 0, 0 );
46                 return 1;
47         }
48         
49         PERL_INTERPRETER = perl_alloc();
50         perl_construct(PERL_INTERPRETER);
51         perl_parse(PERL_INTERPRETER, perl_back_xs_init, 3, embedding, (char **)NULL);
52         perl_run(PERL_INTERPRETER);
53
54         bi->bi_open = perl_back_open;
55         bi->bi_config = 0;
56         bi->bi_close = perl_back_close;
57         bi->bi_destroy = perl_back_destroy;
58
59         bi->bi_db_init = perl_back_db_init;
60         bi->bi_db_config = perl_back_db_config;
61         bi->bi_db_open = perl_back_db_open;
62         bi->bi_db_close = 0;
63         bi->bi_db_destroy = perl_back_db_destroy;
64
65         bi->bi_op_bind = perl_back_bind;
66         bi->bi_op_unbind = 0;
67         bi->bi_op_search = perl_back_search;
68         bi->bi_op_compare = perl_back_compare;
69         bi->bi_op_modify = perl_back_modify;
70         bi->bi_op_modrdn = perl_back_modrdn;
71         bi->bi_op_add = perl_back_add;
72         bi->bi_op_delete = perl_back_delete;
73         bi->bi_op_abandon = 0;
74
75         bi->bi_extended = 0;
76
77         bi->bi_chk_referrals = 0;
78
79         bi->bi_connection_init = 0;
80         bi->bi_connection_destroy = 0;
81
82         return 0;
83 }
84                 
85 int
86 perl_back_open(
87         BackendInfo     *bi
88 )
89 {
90         ldap_pvt_thread_mutex_init( &perl_interpreter_mutex );
91         return 0;
92 }
93
94 int
95 perl_back_db_init(
96         BackendDB       *be
97 )
98 {
99         be->be_private = (PerlBackend *) ch_malloc( sizeof(PerlBackend) );
100         memset( be->be_private, '\0', sizeof(PerlBackend));
101
102         ((PerlBackend *)be->be_private)->pb_filter_search_results = 0;
103
104         Debug( LDAP_DEBUG_TRACE, "perl backend db init\n", 0, 0, 0 );
105
106         return 0;
107 }
108
109 int
110 perl_back_db_open(
111         BackendDB       *be
112 )
113 {
114         int count;
115         int return_code;
116
117         PerlBackend *perl_back = (PerlBackend *) be->be_private;
118
119         ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );
120
121         {
122                 dSP; ENTER; SAVETMPS;
123
124                 PUSHMARK(sp);
125                 XPUSHs( perl_back->pb_obj_ref );
126
127                 PUTBACK;
128
129 #ifdef PERL_IS_5_6
130                 count = call_method("init", G_SCALAR);
131 #else
132                 count = perl_call_method("init", G_SCALAR);
133 #endif
134
135                 SPAGAIN;
136
137                 if (count != 1) {
138                         croak("Big trouble in perl_back_db_open\n");
139                 }
140
141                 return_code = POPi;
142
143                 PUTBACK; FREETMPS; LEAVE;
144         }
145
146         ldap_pvt_thread_mutex_unlock( &perl_interpreter_mutex );
147
148         return return_code;
149 }
150
151
152 static void
153 perl_back_xs_init(PERL_BACK_XS_INIT_PARAMS)
154 {
155         char *file = __FILE__;
156         dXSUB_SYS;
157         newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
158 }
159
160 #if SLAPD_PERL == SLAPD_MOD_DYNAMIC
161
162 int
163 init_module( int argc, char *argv[] )
164 {
165         BackendInfo bi;
166
167         memset( &bi, '\0', sizeof( bi ) );
168         bi.bi_type = "perl";
169         bi.bi_init = perl_back_initialize;
170
171         backend_add( &bi );
172
173         return 0;
174 }
175
176 #endif /* SLAPD_PERL */
177
178