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118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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TDB wrap functions
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Copyright (C) Andrew Tridgell 2004
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Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "../tdb/include/tdb.h"
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#include "../lib/util/dlinklist.h"
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#include "tdb_wrap.h"
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#include "tdb.h"
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static struct tdb_wrap *tdb_list;
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/* destroy the last connection to a tdb */
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static int tdb_wrap_destructor(struct tdb_wrap *w)
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{
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tdb_close(w->tdb);
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DLIST_REMOVE(tdb_list, w);
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return 0;
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}
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/*
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Log tdb messages via DEBUG().
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*/
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static void tdb_wrap_log(TDB_CONTEXT *tdb, enum tdb_debug_level level,
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const char *format, ...) PRINTF_ATTRIBUTE(3,4);
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static void tdb_wrap_log(TDB_CONTEXT *tdb, enum tdb_debug_level level,
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const char *format, ...)
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{
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va_list ap;
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char *ptr = NULL;
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int dl;
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va_start(ap, format);
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vasprintf(&ptr, format, ap);
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va_end(ap);
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switch (level) {
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case TDB_DEBUG_FATAL:
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dl = 0;
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break;
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case TDB_DEBUG_ERROR:
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dl = 1;
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break;
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case TDB_DEBUG_WARNING:
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dl = 2;
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break;
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case TDB_DEBUG_TRACE:
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dl = 5;
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break;
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default:
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dl = 0;
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}
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if (ptr != NULL) {
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const char *name = tdb_name(tdb);
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DEBUG(dl, ("tdb(%s): %s", name ? name : "unnamed", ptr));
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free(ptr);
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}
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}
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/*
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wrapped connection to a tdb database
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to close just talloc_free() the tdb_wrap pointer
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*/
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struct tdb_wrap *tdb_wrap_open(TALLOC_CTX *mem_ctx,
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const char *name, int hash_size, int tdb_flags,
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int open_flags, mode_t mode)
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{
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struct tdb_wrap *w;
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struct tdb_logging_context log_ctx;
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log_ctx.log_fn = tdb_wrap_log;
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for (w=tdb_list;w;w=w->next) {
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if (strcmp(name, w->name) == 0) {
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return talloc_reference(mem_ctx, w);
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}
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}
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w = talloc(mem_ctx, struct tdb_wrap);
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if (w == NULL) {
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return NULL;
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}
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w->name = talloc_strdup(w, name);
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w->tdb = tdb_open_ex(name, hash_size, tdb_flags,
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open_flags, mode, &log_ctx, NULL);
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if (w->tdb == NULL) {
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talloc_free(w);
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return NULL;
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}
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talloc_set_destructor(w, tdb_wrap_destructor);
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DLIST_ADD(tdb_list, w);
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return w;
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}
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