aboutsummaryrefslogtreecommitdiff
path: root/lib/fstream/uncompress/zstd.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/fstream/uncompress/zstd.c')
-rw-r--r--lib/fstream/uncompress/zstd.c81
1 files changed, 0 insertions, 81 deletions
diff --git a/lib/fstream/uncompress/zstd.c b/lib/fstream/uncompress/zstd.c
deleted file mode 100644
index fd22cbf..0000000
--- a/lib/fstream/uncompress/zstd.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * zstd.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "../internal.h"
-
-#include <zstd.h>
-
-#ifdef HAVE_ZSTD_STREAM
-typedef struct {
- istream_comp_t base;
-
- ZSTD_DStream* strm;
-} istream_zstd_t;
-
-static int precache(istream_t *base)
-{
- istream_zstd_t *zstd = (istream_zstd_t *)base;
- istream_t *wrapped = ((istream_comp_t *)base)->wrapped;
- ZSTD_outBuffer out;
- ZSTD_inBuffer in;
- size_t ret;
-
- if (istream_precache(wrapped))
- return -1;
-
- memset(&in, 0, sizeof(in));
- memset(&out, 0, sizeof(out));
-
- in.src = wrapped->buffer;
- in.size = wrapped->buffer_used;
-
- out.dst = ((istream_comp_t *)base)->uncompressed + base->buffer_used;
- out.size = BUFSZ - base->buffer_used;
-
- ret = ZSTD_decompressStream(zstd->strm, &out, &in);
-
- if (ZSTD_isError(ret)) {
- fprintf(stderr, "%s: error in zstd decoder.\n",
- wrapped->get_filename(wrapped));
- return -1;
- }
-
- wrapped->buffer_offset = in.pos;
- base->buffer_used += out.pos;
- return 0;
-}
-
-static void cleanup(istream_comp_t *base)
-{
- istream_zstd_t *zstd = (istream_zstd_t *)base;
-
- ZSTD_freeDStream(zstd->strm);
-}
-
-istream_comp_t *istream_zstd_create(const char *filename)
-{
- istream_zstd_t *zstd = calloc(1, sizeof(*zstd));
- istream_comp_t *base = (istream_comp_t *)zstd;
-
- if (zstd == NULL) {
- fprintf(stderr, "%s: creating zstd decoder: %s.\n",
- filename, strerror(errno));
- return NULL;
- }
-
- zstd->strm = ZSTD_createDStream();
- if (zstd->strm == NULL) {
- fprintf(stderr, "%s: error creating zstd decoder.\n",
- filename);
- free(zstd);
- return NULL;
- }
-
- ((istream_t *)base)->precache = precache;
- base->cleanup = cleanup;
- return base;
-}
-#endif /* HAVE_ZSTD_STREAM */