1 /* $Id: recctrl.c,v 1.9 2004-09-28 10:15:03 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 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
52 NMEM nmem, void *module_handle);
54 RecTypeClass recTypeClass_create (Res res, NMEM nmem)
56 struct recTypeClass *rts = 0;
57 const char *module_path = res_get_def(res, "modulePath",
60 extern RecType idzebra_filter_grs_sgml[];
61 recTypeClass_add (&rts, idzebra_filter_grs_sgml, nmem, 0);
62 #ifdef IDZEBRA_STATIC_TEXT
63 extern RecType idzebra_filter_text[];
64 recTypeClass_add (&rts, idzebra_filter_text, nmem, 0);
66 #ifdef IDZEBRA_STATIC_GRS_XML
68 extern RecType idzebra_filter_grs_xml[];
69 recTypeClass_add (&rts, idzebra_filter_grs_xml, nmem, 0);
72 #ifdef IDZEBRA_STATIC_GRS_REGX
73 extern RecType idzebra_filter_grs_regx[];
74 recTypeClass_add (&rts, idzebra_filter_grs_regx, nmem, 0);
76 #ifdef IDZEBRA_STATIC_GRS_MARC
77 extern RecType idzebra_filter_grs_marc[];
78 recTypeClass_add (&rts, idzebra_filter_grs_marc, nmem, 0);
80 #ifdef IDZEBRA_STATIC_GRS_PERL
81 extern RecType idzebra_filter_grs_perl[];
82 recTypeClass_add (&rts, idzebra_filter_grs_perl, nmem, 0);
84 #ifdef IDZEBRA_STATIC_GRS_DANBIB
85 extern RecType idzebra_filter_grs_danbib[];
86 recTypeClass_add (&rts, idzebra_filter_grs_danbib, nmem, 0);
91 DIR *dir = opendir(module_path);
92 yaz_log(LOG_LOG, "searching filters in %s", module_path);
97 while ((de = readdir(dir)))
99 size_t dlen = strlen(de->d_name);
100 if ((de->d_type == DT_REG || de->d_type == DT_LNK)
102 !memcmp(de->d_name, "mod-", 4) &&
103 !strcmp(de->d_name + dlen - 3, ".so"))
106 char fname[FILENAME_MAX*2+1];
107 sprintf(fname, "%.*s/%.*s",
108 FILENAME_MAX, module_path,
109 FILENAME_MAX, de->d_name);
110 mod_p = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
111 if (mod_p && (fl = dlsym(mod_p, "idzebra_filter")))
113 yaz_log(LOG_LOG, "Loaded filter module %s", fname);
114 recTypeClass_add(&rts, fl, nmem, mod_p);
118 const char *err = dlerror();
119 yaz_log(LOG_WARN, "dlsym failed %s %s",
120 fname, err ? err : "none");
125 const char *err = dlerror();
126 yaz_log(LOG_WARN, "dlopen failed %s %s",
127 fname, err ? err : "none");
138 static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
139 NMEM nmem, void *module_handle)
143 struct recTypeClass *r = (struct recTypeClass *)
144 nmem_malloc (nmem, sizeof(*r));
149 yaz_log(LOG_LOG, "Adding filter %s", (*rt)->name);
150 r->module_handle = module_handle;
151 module_handle = 0; /* so that we only store module_handle once */
158 void recTypeClass_info(RecTypeClass rtc, void *cd,
159 void (*cb)(void *cd, const char *s))
161 for (; rtc; rtc = rtc->next)
162 (*cb)(cd, rtc->recType->name);
165 void recTypeClass_destroy(RecTypeClass rtc)
167 for (; rtc; rtc = rtc->next)
169 if (rtc->module_handle)
170 dlclose(rtc->module_handle);
174 RecTypes recTypes_init(RecTypeClass rtc, data1_handle dh)
176 RecTypes rts = (RecTypes) nmem_malloc(data1_nmem_get(dh), sizeof(*rts));
178 struct recTypeInstance **rti = &rts->entries;
182 for (; rtc; rtc = rtc->next)
184 *rti = nmem_malloc(data1_nmem_get(dh), sizeof(**rti));
185 (*rti)->recType = rtc->recType;
186 (*rti)->init_flag = 0;
193 void recTypes_destroy (RecTypes rts)
195 struct recTypeInstance *rti;
197 for (rti = rts->entries; rti; rti = rti->next)
200 (*(rti->recType)->destroy)(rti->clientData);
204 RecType recType_byName (RecTypes rts, Res res, const char *name,
207 struct recTypeInstance *rti;
209 for (rti = rts->entries; rti; rti = rti->next)
211 size_t slen = strlen(rti->recType->name);
212 if (!strncmp (rti->recType->name, name, slen)
213 && (name[slen] == '\0' || name[slen] == '.'))
219 (*(rti->recType)->init)(res, rti->recType);
221 *clientDataP = rti->clientData;
225 if (rti->recType->config)
226 (*(rti->recType)->config)(rti->clientData, res, name+slen);