+++ /dev/null
-/* $Id: recctrl.c,v 1.27 2006-06-02 13:55:55 marc Exp $
- Copyright (C) 1995-2006
- Index Data ApS
-
-This file is part of the Zebra server.
-
-Zebra is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with Zebra; see the file LICENSE.zebra. If not, write to the
-Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.
-*/
-
-
-#include <stdio.h>
-#include <assert.h>
-#include <string.h>
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <direntz.h>
-#include <idzebra/util.h>
-#include <idzebra/recctrl.h>
-
-struct recTypeClass {
- RecType recType;
- struct recTypeClass *next;
- void *module_handle;
-};
-
-struct recTypeInstance {
- RecType recType;
- struct recTypeInstance *next;
- int init_flag;
- void *clientData;
-};
-
-struct recTypes {
- data1_handle dh;
- struct recTypeInstance *entries;
-};
-
-static void recTypeClass_add (struct recTypeClass **rts, RecType *rt,
- NMEM nmem, void *module_handle);
-
-
-RecTypeClass recTypeClass_create (Res res, NMEM nmem)
-{
- struct recTypeClass *rts = 0;
-
-#ifdef IDZEBRA_STATIC_GRS_SGML
- if (1)
- {
- extern RecType idzebra_filter_grs_sgml[];
- recTypeClass_add (&rts, idzebra_filter_grs_sgml, nmem, 0);
- }
-#endif
-
-#ifdef IDZEBRA_STATIC_TEXT
- if (1)
- {
- extern RecType idzebra_filter_text[];
- recTypeClass_add (&rts, idzebra_filter_text, nmem, 0);
- }
-#endif
-
-#ifdef IDZEBRA_STATIC_GRS_XML
-#if HAVE_EXPAT_H
- if (1)
- {
- extern RecType idzebra_filter_grs_xml[];
- recTypeClass_add (&rts, idzebra_filter_grs_xml, nmem, 0);
- }
-#endif
-#endif
-
-#ifdef IDZEBRA_STATIC_GRS_REGX
- if (1)
- {
- extern RecType idzebra_filter_grs_regx[];
- recTypeClass_add (&rts, idzebra_filter_grs_regx, nmem, 0);
- }
-#endif
-
-#ifdef IDZEBRA_STATIC_GRS_MARC
- if (1)
- {
- extern RecType idzebra_filter_grs_marc[];
- recTypeClass_add (&rts, idzebra_filter_grs_marc, nmem, 0);
- }
-#endif
-
-#ifdef IDZEBRA_STATIC_SAFARI
- if (1)
- {
- extern RecType idzebra_filter_safari[];
- recTypeClass_add (&rts, idzebra_filter_safari, nmem, 0);
- }
-#endif
-
-#ifdef IDZEBRA_STATIC_ALVIS
-#if HAVE_XSLT
- if (1)
- {
- extern RecType idzebra_filter_alvis[];
- recTypeClass_add (&rts, idzebra_filter_alvis, nmem, 0);
- }
-#endif
-#endif
-
- return rts;
-}
-
-void recTypeClass_load_modules(RecTypeClass *rts, NMEM nmem,
- const char *module_path)
-{
-#if HAVE_DLFCN_H
- if (module_path)
- {
- DIR *dir = opendir(module_path);
- yaz_log(YLOG_LOG, "searching filters in %s", module_path);
- if (dir)
- {
- struct dirent *de;
-
- while ((de = readdir(dir)))
- {
- size_t dlen = strlen(de->d_name);
- if (dlen >= 5 &&
- !memcmp(de->d_name, "mod-", 4) &&
- !strcmp(de->d_name + dlen - 3, ".so"))
- {
- void *mod_p, *fl;
- char fname[FILENAME_MAX*2+1];
- sprintf(fname, "%.*s/%.*s",
- FILENAME_MAX, module_path,
- FILENAME_MAX, de->d_name);
- mod_p = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
- if (mod_p && (fl = dlsym(mod_p, "idzebra_filter")))
- {
- yaz_log(YLOG_LOG, "Loaded filter module %s", fname);
- recTypeClass_add(rts, fl, nmem, mod_p);
- }
- else if (mod_p)
- {
- const char *err = dlerror();
- yaz_log(YLOG_WARN, "dlsym failed %s %s",
- fname, err ? err : "none");
- dlclose(mod_p);
- }
- else
- {
- const char *err = dlerror();
- yaz_log(YLOG_WARN, "dlopen failed %s %s",
- fname, err ? err : "none");
-
- }
- }
- }
- closedir(dir);
- }
- }
-#endif
-}
-
-static void recTypeClass_add(struct recTypeClass **rts, RecType *rt,
- NMEM nmem, void *module_handle)
-{
- while (*rt)
- {
- struct recTypeClass *r = (struct recTypeClass *)
- nmem_malloc (nmem, sizeof(*r));
-
- r->next = *rts;
- *rts = r;
-
- yaz_log(YLOG_LOG, "Adding filter %s", (*rt)->name);
- r->module_handle = module_handle;
- module_handle = 0; /* so that we only store module_handle once */
- r->recType = *rt;
-
- rt++;
- }
-}
-
-void recTypeClass_info(RecTypeClass rtc, void *cd,
- void (*cb)(void *cd, const char *s))
-{
- for (; rtc; rtc = rtc->next)
- (*cb)(cd, rtc->recType->name);
-}
-
-void recTypeClass_destroy(RecTypeClass rtc)
-{
- for (; rtc; rtc = rtc->next)
- {
-#if HAVE_DLFCN_H
- if (rtc->module_handle)
- dlclose(rtc->module_handle);
-#endif
- }
-}
-
-RecTypes recTypes_init(RecTypeClass rtc, data1_handle dh)
-{
- RecTypes rts = (RecTypes) nmem_malloc(data1_nmem_get(dh), sizeof(*rts));
-
- struct recTypeInstance **rti = &rts->entries;
-
- rts->dh = dh;
-
- for (; rtc; rtc = rtc->next)
- {
- *rti = nmem_malloc(data1_nmem_get(dh), sizeof(**rti));
- (*rti)->recType = rtc->recType;
- (*rti)->init_flag = 0;
- rti = &(*rti)->next;
- }
- *rti = 0;
- return rts;
-}
-
-void recTypes_destroy (RecTypes rts)
-{
- struct recTypeInstance *rti;
-
- for (rti = rts->entries; rti; rti = rti->next)
- {
- if (rti->init_flag)
- (*(rti->recType)->destroy)(rti->clientData);
- }
-}
-
-RecType recType_byName (RecTypes rts, Res res, const char *name,
- void **clientDataP)
-{
- struct recTypeInstance *rti;
-
- for (rti = rts->entries; rti; rti = rti->next)
- {
- size_t slen = strlen(rti->recType->name);
- if (!strncmp (rti->recType->name, name, slen)
- && (name[slen] == '\0' || name[slen] == '.'))
- {
- if (!rti->init_flag)
- {
- rti->init_flag = 1;
- rti->clientData =
- (*(rti->recType)->init)(res, rti->recType);
- }
- *clientDataP = rti->clientData;
- if (name[slen])
- slen++; /* skip . */
-
- if (rti->recType->config)
- {
- if ((*(rti->recType)->config)
- (rti->clientData, res, name+slen) != ZEBRA_OK)
- return 0;
- }
- return rti->recType;
- }
- }
- return 0;
-}
-
-/*
- * Local variables:
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- * vim: shiftwidth=4 tabstop=8 expandtab
- */
-
projects / idzebra-moved-to-github.git / blobdiff