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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:58:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:58:51 +0000 |
commit | cbffab246997fb5a06211dfb706b54e5ae5bb59f (patch) | |
tree | 0573c5d96f58d74d76a49c0f2a70398e389a36d3 /lib/dpkg/nfmalloc.c | |
parent | Initial commit. (diff) | |
download | dpkg-upstream.tar.xz dpkg-upstream.zip |
Adding upstream version 1.21.22.upstream/1.21.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/dpkg/nfmalloc.c')
-rw-r--r-- | lib/dpkg/nfmalloc.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/lib/dpkg/nfmalloc.c b/lib/dpkg/nfmalloc.c new file mode 100644 index 0000000..d076351 --- /dev/null +++ b/lib/dpkg/nfmalloc.c @@ -0,0 +1,73 @@ +/* + * 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; + } +} |