1 /* $Id: recctrl.c,v 1.15 2005-01-05 00:10:19 adam Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
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_TEXT
54 extern RecType idzebra_filter_text[];
56 #ifdef IDZEBRA_STATIC_GRS_XML
58 extern RecType idzebra_filter_grs_xml[];
61 #ifdef IDZEBRA_STATIC_GRS_REGX
62 extern RecType idzebra_filter_grs_regx[];
64 #ifdef IDZEBRA_STATIC_GRS_MARC
65 extern RecType idzebra_filter_grs_marc[];
67 #ifdef IDZEBRA_STATIC_GRS_DANBIB
68 extern RecType idzebra_filter_grs_danbib[];
70 #ifdef IDZEBRA_STATIC_SAFARI
71 extern RecType idzebra_filter_safari[];
74 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
75 NMEM nmem, void *module_handle);
77 RecTypeClass recTypeClass_create (Res res, NMEM nmem)
79 struct recTypeClass *rts = 0;
80 const char *module_path = res_get_def(res, "modulePath",
83 extern RecType idzebra_filter_grs_sgml[];
84 recTypeClass_add (&rts, idzebra_filter_grs_sgml, nmem, 0);
85 #ifdef IDZEBRA_STATIC_TEXT
86 recTypeClass_add (&rts, idzebra_filter_text, nmem, 0);
88 #ifdef IDZEBRA_STATIC_GRS_XML
90 recTypeClass_add (&rts, idzebra_filter_grs_xml, nmem, 0);
93 #ifdef IDZEBRA_STATIC_GRS_REGX
94 recTypeClass_add (&rts, idzebra_filter_grs_regx, nmem, 0);
96 #ifdef IDZEBRA_STATIC_GRS_MARC
97 recTypeClass_add (&rts, idzebra_filter_grs_marc, nmem, 0);
99 #ifdef IDZEBRA_STATIC_GRS_DANBIB
100 recTypeClass_add (&rts, idzebra_filter_grs_danbib, nmem, 0);
102 #ifdef IDZEBRA_STATIC_SAFARI
103 recTypeClass_add (&rts, idzebra_filter_safari, nmem, 0);
109 DIR *dir = opendir(module_path);
110 yaz_log(YLOG_LOG, "searching filters in %s", module_path);
115 while ((de = readdir(dir)))
117 size_t dlen = strlen(de->d_name);
119 !memcmp(de->d_name, "mod-", 4) &&
120 !strcmp(de->d_name + dlen - 3, ".so"))
123 char fname[FILENAME_MAX*2+1];
124 sprintf(fname, "%.*s/%.*s",
125 FILENAME_MAX, module_path,
126 FILENAME_MAX, de->d_name);
127 mod_p = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
128 if (mod_p && (fl = dlsym(mod_p, "idzebra_filter")))
130 yaz_log(YLOG_LOG, "Loaded filter module %s", fname);
131 recTypeClass_add(&rts, fl, nmem, mod_p);
135 const char *err = dlerror();
136 yaz_log(YLOG_WARN, "dlsym failed %s %s",
137 fname, err ? err : "none");
142 const char *err = dlerror();
143 yaz_log(YLOG_WARN, "dlopen failed %s %s",
144 fname, err ? err : "none");
156 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
157 NMEM nmem, void *module_handle)
161 struct recTypeClass *r = (struct recTypeClass *)
162 nmem_malloc (nmem, sizeof(*r));
167 yaz_log(YLOG_LOG, "Adding filter %s", (*rt)->name);
168 r->module_handle = module_handle;
169 module_handle = 0; /* so that we only store module_handle once */
176 void recTypeClass_info(RecTypeClass rtc, void *cd,
177 void (*cb)(void *cd, const char *s))
179 for (; rtc; rtc = rtc->next)
180 (*cb)(cd, rtc->recType->name);
183 void recTypeClass_destroy(RecTypeClass rtc)
185 for (; rtc; rtc = rtc->next)
188 if (rtc->module_handle)
189 dlclose(rtc->module_handle);
194 RecTypes recTypes_init(RecTypeClass rtc, data1_handle dh)
196 RecTypes rts = (RecTypes) nmem_malloc(data1_nmem_get(dh), sizeof(*rts));
198 struct recTypeInstance **rti = &rts->entries;
202 for (; rtc; rtc = rtc->next)
204 *rti = nmem_malloc(data1_nmem_get(dh), sizeof(**rti));
205 (*rti)->recType = rtc->recType;
206 (*rti)->init_flag = 0;
213 void recTypes_destroy (RecTypes rts)
215 struct recTypeInstance *rti;
217 for (rti = rts->entries; rti; rti = rti->next)
220 (*(rti->recType)->destroy)(rti->clientData);
224 RecType recType_byName (RecTypes rts, Res res, const char *name,
227 struct recTypeInstance *rti;
229 for (rti = rts->entries; rti; rti = rti->next)
231 size_t slen = strlen(rti->recType->name);
232 if (!strncmp (rti->recType->name, name, slen)
233 && (name[slen] == '\0' || name[slen] == '.'))
239 (*(rti->recType)->init)(res, rti->recType);
241 *clientDataP = rti->clientData;
245 if (rti->recType->config)
246 (*(rti->recType)->config)(rti->clientData, res, name+slen);