1 /* $Id: recctrl.c,v 1.14 2004-11-29 21:55:28 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
31 #include <idzebra/recctrl.h>
35 struct recTypeClass *next;
39 struct recTypeInstance {
41 struct recTypeInstance *next;
48 struct recTypeInstance *entries;
51 #ifdef IDZEBRA_STATIC_TEXT
52 extern RecType idzebra_filter_text[];
54 #ifdef IDZEBRA_STATIC_GRS_XML
56 extern RecType idzebra_filter_grs_xml[];
59 #ifdef IDZEBRA_STATIC_GRS_REGX
60 extern RecType idzebra_filter_grs_regx[];
62 #ifdef IDZEBRA_STATIC_GRS_MARC
63 extern RecType idzebra_filter_grs_marc[];
65 #ifdef IDZEBRA_STATIC_GRS_DANBIB
66 extern RecType idzebra_filter_grs_danbib[];
68 #ifdef IDZEBRA_STATIC_SAFARI
69 extern RecType idzebra_filter_safari[];
72 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
73 NMEM nmem, void *module_handle);
75 RecTypeClass recTypeClass_create (Res res, NMEM nmem)
77 struct recTypeClass *rts = 0;
78 const char *module_path = res_get_def(res, "modulePath",
81 extern RecType idzebra_filter_grs_sgml[];
82 recTypeClass_add (&rts, idzebra_filter_grs_sgml, nmem, 0);
83 #ifdef IDZEBRA_STATIC_TEXT
84 recTypeClass_add (&rts, idzebra_filter_text, nmem, 0);
86 #ifdef IDZEBRA_STATIC_GRS_XML
88 recTypeClass_add (&rts, idzebra_filter_grs_xml, nmem, 0);
91 #ifdef IDZEBRA_STATIC_GRS_REGX
92 recTypeClass_add (&rts, idzebra_filter_grs_regx, nmem, 0);
94 #ifdef IDZEBRA_STATIC_GRS_MARC
95 recTypeClass_add (&rts, idzebra_filter_grs_marc, nmem, 0);
97 #ifdef IDZEBRA_STATIC_GRS_DANBIB
98 recTypeClass_add (&rts, idzebra_filter_grs_danbib, nmem, 0);
100 #ifdef IDZEBRA_STATIC_SAFARI
101 recTypeClass_add (&rts, idzebra_filter_safari, nmem, 0);
106 DIR *dir = opendir(module_path);
107 yaz_log(YLOG_LOG, "searching filters in %s", module_path);
112 while ((de = readdir(dir)))
114 size_t dlen = strlen(de->d_name);
116 !memcmp(de->d_name, "mod-", 4) &&
117 !strcmp(de->d_name + dlen - 3, ".so"))
120 char fname[FILENAME_MAX*2+1];
121 sprintf(fname, "%.*s/%.*s",
122 FILENAME_MAX, module_path,
123 FILENAME_MAX, de->d_name);
124 mod_p = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
125 if (mod_p && (fl = dlsym(mod_p, "idzebra_filter")))
127 yaz_log(YLOG_LOG, "Loaded filter module %s", fname);
128 recTypeClass_add(&rts, fl, nmem, mod_p);
132 const char *err = dlerror();
133 yaz_log(YLOG_WARN, "dlsym failed %s %s",
134 fname, err ? err : "none");
139 const char *err = dlerror();
140 yaz_log(YLOG_WARN, "dlopen failed %s %s",
141 fname, err ? err : "none");
152 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
153 NMEM nmem, void *module_handle)
157 struct recTypeClass *r = (struct recTypeClass *)
158 nmem_malloc (nmem, sizeof(*r));
163 yaz_log(YLOG_LOG, "Adding filter %s", (*rt)->name);
164 r->module_handle = module_handle;
165 module_handle = 0; /* so that we only store module_handle once */
172 void recTypeClass_info(RecTypeClass rtc, void *cd,
173 void (*cb)(void *cd, const char *s))
175 for (; rtc; rtc = rtc->next)
176 (*cb)(cd, rtc->recType->name);
179 void recTypeClass_destroy(RecTypeClass rtc)
181 for (; rtc; rtc = rtc->next)
183 if (rtc->module_handle)
184 dlclose(rtc->module_handle);
188 RecTypes recTypes_init(RecTypeClass rtc, data1_handle dh)
190 RecTypes rts = (RecTypes) nmem_malloc(data1_nmem_get(dh), sizeof(*rts));
192 struct recTypeInstance **rti = &rts->entries;
196 for (; rtc; rtc = rtc->next)
198 *rti = nmem_malloc(data1_nmem_get(dh), sizeof(**rti));
199 (*rti)->recType = rtc->recType;
200 (*rti)->init_flag = 0;
207 void recTypes_destroy (RecTypes rts)
209 struct recTypeInstance *rti;
211 for (rti = rts->entries; rti; rti = rti->next)
214 (*(rti->recType)->destroy)(rti->clientData);
218 RecType recType_byName (RecTypes rts, Res res, const char *name,
221 struct recTypeInstance *rti;
223 for (rti = rts->entries; rti; rti = rti->next)
225 size_t slen = strlen(rti->recType->name);
226 if (!strncmp (rti->recType->name, name, slen)
227 && (name[slen] == '\0' || name[slen] == '.'))
233 (*(rti->recType)->init)(res, rti->recType);
235 *clientDataP = rti->clientData;
239 if (rti->recType->config)
240 (*(rti->recType)->config)(rti->clientData, res, name+slen);