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/*
* libdpkg - Debian packaging suite library routines
* nfmalloc.c - non-freeing malloc, used for in-core database
*
* Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
*
* This 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 of the License, or
* (at your option) any later version.
*
* This 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <string.h>
#include <stdlib.h>
#include <obstack.h>
#include <dpkg/i18n.h>
#include <dpkg/dpkg.h>
#include <dpkg/dpkg-db.h>
#define obstack_chunk_alloc m_malloc
#define obstack_chunk_free free
static struct obstack db_obs;
static bool dbobs_init = false;
/* We use lots of mem, so use a large chunk. */
#define CHUNK_SIZE 8192
#define OBSTACK_INIT if (!dbobs_init) { nfobstack_init(); }
static void nfobstack_init(void) {
obstack_init(&db_obs);
dbobs_init = true;
obstack_chunk_size(&db_obs) = CHUNK_SIZE;
}
void *
nfmalloc(size_t size)
{
OBSTACK_INIT;
return obstack_alloc(&db_obs, size);
}
char *nfstrsave(const char *string) {
OBSTACK_INIT;
return obstack_copy0 (&db_obs, string, strlen(string));
}
char *
nfstrnsave(const char *string, size_t size)
{
OBSTACK_INIT;
return obstack_copy0(&db_obs, string, size);
}
void nffreeall(void) {
if (dbobs_init) {
obstack_free(&db_obs, NULL);
dbobs_init = false;
}
}
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