1 /* $Id: recctrl.c,v 1.17 2005-01-15 19:38:32 adam Exp $
2 Copyright (C) 1995-2005
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
33 #include <idzebra/recctrl.h>
37 struct recTypeClass *next;
41 struct recTypeInstance {
43 struct recTypeInstance *next;
50 struct recTypeInstance *entries;
53 #ifdef IDZEBRA_STATIC_GRS_SGML
54 extern RecType idzebra_filter_grs_sgml[];
56 #ifdef IDZEBRA_STATIC_TEXT
57 extern RecType idzebra_filter_text[];
59 #ifdef IDZEBRA_STATIC_GRS_XML
61 extern RecType idzebra_filter_grs_xml[];
64 #ifdef IDZEBRA_STATIC_GRS_REGX
65 extern RecType idzebra_filter_grs_regx[];
67 #ifdef IDZEBRA_STATIC_GRS_MARC
68 extern RecType idzebra_filter_grs_marc[];
70 #ifdef IDZEBRA_STATIC_GRS_DANBIB
71 extern RecType idzebra_filter_grs_danbib[];
73 #ifdef IDZEBRA_STATIC_SAFARI
74 extern RecType idzebra_filter_safari[];
77 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
78 NMEM nmem, void *module_handle);
80 RecTypeClass recTypeClass_create (Res res, NMEM nmem)
82 struct recTypeClass *rts = 0;
83 const char *module_path = res_get_def(res, "modulePath",
86 #ifdef IDZEBRA_STATIC_GRS_SGML
87 recTypeClass_add (&rts, idzebra_filter_grs_sgml, nmem, 0);
89 #ifdef IDZEBRA_STATIC_TEXT
90 recTypeClass_add (&rts, idzebra_filter_text, nmem, 0);
92 #ifdef IDZEBRA_STATIC_GRS_XML
94 recTypeClass_add (&rts, idzebra_filter_grs_xml, nmem, 0);
97 #ifdef IDZEBRA_STATIC_GRS_REGX
98 recTypeClass_add (&rts, idzebra_filter_grs_regx, nmem, 0);
100 #ifdef IDZEBRA_STATIC_GRS_MARC
101 recTypeClass_add (&rts, idzebra_filter_grs_marc, nmem, 0);
103 #ifdef IDZEBRA_STATIC_GRS_DANBIB
104 recTypeClass_add (&rts, idzebra_filter_grs_danbib, nmem, 0);
106 #ifdef IDZEBRA_STATIC_SAFARI
107 recTypeClass_add (&rts, idzebra_filter_safari, nmem, 0);
113 DIR *dir = opendir(module_path);
114 yaz_log(YLOG_LOG, "searching filters in %s", module_path);
119 while ((de = readdir(dir)))
121 size_t dlen = strlen(de->d_name);
123 !memcmp(de->d_name, "mod-", 4) &&
124 !strcmp(de->d_name + dlen - 3, ".so"))
127 char fname[FILENAME_MAX*2+1];
128 sprintf(fname, "%.*s/%.*s",
129 FILENAME_MAX, module_path,
130 FILENAME_MAX, de->d_name);
131 mod_p = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
132 if (mod_p && (fl = dlsym(mod_p, "idzebra_filter")))
134 yaz_log(YLOG_LOG, "Loaded filter module %s", fname);
135 recTypeClass_add(&rts, fl, nmem, mod_p);
139 const char *err = dlerror();
140 yaz_log(YLOG_WARN, "dlsym failed %s %s",
141 fname, err ? err : "none");
146 const char *err = dlerror();
147 yaz_log(YLOG_WARN, "dlopen failed %s %s",
148 fname, err ? err : "none");
160 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
161 NMEM nmem, void *module_handle)
165 struct recTypeClass *r = (struct recTypeClass *)
166 nmem_malloc (nmem, sizeof(*r));
171 yaz_log(YLOG_LOG, "Adding filter %s", (*rt)->name);
172 r->module_handle = module_handle;
173 module_handle = 0; /* so that we only store module_handle once */
180 void recTypeClass_info(RecTypeClass rtc, void *cd,
181 void (*cb)(void *cd, const char *s))
183 for (; rtc; rtc = rtc->next)
184 (*cb)(cd, rtc->recType->name);
187 void recTypeClass_destroy(RecTypeClass rtc)
189 for (; rtc; rtc = rtc->next)
192 if (rtc->module_handle)
193 dlclose(rtc->module_handle);
198 RecTypes recTypes_init(RecTypeClass rtc, data1_handle dh)
200 RecTypes rts = (RecTypes) nmem_malloc(data1_nmem_get(dh), sizeof(*rts));
202 struct recTypeInstance **rti = &rts->entries;
206 for (; rtc; rtc = rtc->next)
208 *rti = nmem_malloc(data1_nmem_get(dh), sizeof(**rti));
209 (*rti)->recType = rtc->recType;
210 (*rti)->init_flag = 0;
217 void recTypes_destroy (RecTypes rts)
219 struct recTypeInstance *rti;
221 for (rti = rts->entries; rti; rti = rti->next)
224 (*(rti->recType)->destroy)(rti->clientData);
228 RecType recType_byName (RecTypes rts, Res res, const char *name,
231 struct recTypeInstance *rti;
233 for (rti = rts->entries; rti; rti = rti->next)
235 size_t slen = strlen(rti->recType->name);
236 if (!strncmp (rti->recType->name, name, slen)
237 && (name[slen] == '\0' || name[slen] == '.'))
243 (*(rti->recType)->init)(res, rti->recType);
245 *clientDataP = rti->clientData;
249 if (rti->recType->config)
250 (*(rti->recType)->config)(rti->clientData, res, name+slen);