MFV: zstd 1.5.7.

Approved by:	re (cperciva)
MFC after:	2 weeks
Relnotes:	yes

(cherry picked from commit c0d9a07101a1e72769ee0619a583f63a078fb391)
(cherry picked from commit 7c9418613a31571e4eceda55a417f7183d26acb5)
(cherry picked from commit 111a42d7d78a88ba6ff7b5d61b0867faccc00276)
(cherry picked from commit ff426ceef657d7c478471e631349c5d1a8b96453)

1 files changed, 0 insertions, 116 deletions

diff --git a/sys/contrib/zstd/examples/multiple_simple_compression.c b/sys/contrib/zstd/examples/multiple_simple_compression.c
deleted file mode 100644
index 5d2a28fcdca9..000000000000
--- a/sys/contrib/zstd/examples/multiple_simple_compression.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (c) Yann Collet, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under both the BSD-style license (found in the
- * LICENSE file in the root directory of this source tree) and the GPLv2 (found
- * in the COPYING file in the root directory of this source tree).
- * You may select, at your option, one of the above-listed licenses.
- */
-
-#include <stdio.h>     // printf
-#include <stdlib.h>    // free
-#include <string.h>    // memcpy, strlen
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-typedef struct {
-    void* fBuffer;
-    void* cBuffer;
-    size_t fBufferSize;
-    size_t cBufferSize;
-    ZSTD_CCtx* cctx;
-} resources;
-
-/*
- * allocate memory for buffers big enough to compress all files
- * as well as memory for output file name (ofn)
- */
-static resources createResources_orDie(int argc, const char** argv, char **ofn, size_t* ofnBufferLen)
-{
-    size_t maxFilenameLength=0;
-    size_t maxFileSize = 0;
-
-    int argNb;
-    for (argNb = 1; argNb < argc; argNb++) {
-      const char* const filename = argv[argNb];
-      size_t const filenameLength = strlen(filename);
-      size_t const fileSize = fsize_orDie(filename);
-
-      if (filenameLength > maxFilenameLength) maxFilenameLength = filenameLength;
-      if (fileSize > maxFileSize) maxFileSize = fileSize;
-    }
-
-    resources ress;
-    ress.fBufferSize = maxFileSize;
-    ress.cBufferSize = ZSTD_compressBound(maxFileSize);
-
-    *ofnBufferLen = maxFilenameLength + 5;
-    *ofn = (char*)malloc_orDie(*ofnBufferLen);
-    ress.fBuffer = malloc_orDie(ress.fBufferSize);
-    ress.cBuffer = malloc_orDie(ress.cBufferSize);
-    ress.cctx = ZSTD_createCCtx();
-    CHECK(ress.cctx != NULL, "ZSTD_createCCtx() failed!");
-    return ress;
-}
-
-static void freeResources(resources ress, char *outFilename)
-{
-    free(ress.fBuffer);
-    free(ress.cBuffer);
-    ZSTD_freeCCtx(ress.cctx);   /* never fails */
-    free(outFilename);
-}
-
-/* compress with pre-allocated context (ZSTD_CCtx) and input/output buffers*/
-static void compressFile_orDie(resources ress, const char* fname, const char* oname)
-{
-    size_t fSize = loadFile_orDie(fname, ress.fBuffer, ress.fBufferSize);
-
-    /* Compress using the context.
-     * If you need more control over parameters, use the advanced API:
-     * ZSTD_CCtx_setParameter(), and ZSTD_compress2().
-     */
-    size_t const cSize = ZSTD_compressCCtx(ress.cctx, ress.cBuffer, ress.cBufferSize, ress.fBuffer, fSize, 1);
-    CHECK_ZSTD(cSize);
-
-    saveFile_orDie(oname, ress.cBuffer, cSize);
-
-    /* success */
-    printf("%25s : %6u -> %7u - %s \n", fname, (unsigned)fSize, (unsigned)cSize, oname);
-}
-
-int main(int argc, const char** argv)
-{
-    const char* const exeName = argv[0];
-
-    if (argc<2) {
-        printf("wrong arguments\n");
-        printf("usage:\n");
-        printf("%s FILE(s)\n", exeName);
-        return 1;
-    }
-
-    /* memory allocation for outFilename and resources */
-    char* outFilename;
-    size_t outFilenameBufferLen;
-    resources const ress = createResources_orDie(argc, argv, &outFilename, &outFilenameBufferLen);
-
-    /* compress files with shared context, input and output buffers */
-    int argNb;
-    for (argNb = 1; argNb < argc; argNb++) {
-        const char* const inFilename = argv[argNb];
-        size_t const inFilenameLen = strlen(inFilename);
-        CHECK(inFilenameLen + 5 <= outFilenameBufferLen, "File name too long!");
-        memcpy(outFilename, inFilename, inFilenameLen);
-        memcpy(outFilename+inFilenameLen, ".zst", 5);
-        compressFile_orDie(ress, inFilename, outFilename);
-    }
-
-    /* free memory */
-    freeResources(ress,outFilename);
-
-    printf("compressed %i files \n", argc-1);
-
-    return 0;
-}