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-rw-r--r--examples/streaming_compression.c129
1 files changed, 0 insertions, 129 deletions
diff --git a/examples/streaming_compression.c b/examples/streaming_compression.c
deleted file mode 100644
index 24ad15bd614c..000000000000
--- a/examples/streaming_compression.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/**
- * Copyright 2016-present, Yann Collet, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the license found in the
- * LICENSE-examples file in the root directory of this source tree.
- */
-
-
-#include <stdlib.h> // malloc, free, exit
-#include <stdio.h> // fprintf, perror, feof, fopen, etc.
-#include <string.h> // strlen, memset, strcat
-#include <zstd.h> // presumes zstd library is installed
-
-
-static void* malloc_orDie(size_t size)
-{
- void* const buff = malloc(size);
- if (buff) return buff;
- /* error */
- perror("malloc:");
- exit(1);
-}
-
-static FILE* fopen_orDie(const char *filename, const char *instruction)
-{
- FILE* const inFile = fopen(filename, instruction);
- if (inFile) return inFile;
- /* error */
- perror(filename);
- exit(3);
-}
-
-static size_t fread_orDie(void* buffer, size_t sizeToRead, FILE* file)
-{
- size_t const readSize = fread(buffer, 1, sizeToRead, file);
- if (readSize == sizeToRead) return readSize; /* good */
- if (feof(file)) return readSize; /* good, reached end of file */
- /* error */
- perror("fread");
- exit(4);
-}
-
-static size_t fwrite_orDie(const void* buffer, size_t sizeToWrite, FILE* file)
-{
- size_t const writtenSize = fwrite(buffer, 1, sizeToWrite, file);
- if (writtenSize == sizeToWrite) return sizeToWrite; /* good */
- /* error */
- perror("fwrite");
- exit(5);
-}
-
-static size_t fclose_orDie(FILE* file)
-{
- if (!fclose(file)) return 0;
- /* error */
- perror("fclose");
- exit(6);
-}
-
-
-static void compressFile_orDie(const char* fname, const char* outName, int cLevel)
-{
- FILE* const fin = fopen_orDie(fname, "rb");
- FILE* const fout = fopen_orDie(outName, "wb");
- size_t const buffInSize = ZSTD_CStreamInSize(); /* can always read one full block */
- void* const buffIn = malloc_orDie(buffInSize);
- size_t const buffOutSize = ZSTD_CStreamOutSize(); /* can always flush a full block */
- void* const buffOut = malloc_orDie(buffOutSize);
-
- ZSTD_CStream* const cstream = ZSTD_createCStream();
- if (cstream==NULL) { fprintf(stderr, "ZSTD_createCStream() error \n"); exit(10); }
- size_t const initResult = ZSTD_initCStream(cstream, cLevel);
- if (ZSTD_isError(initResult)) { fprintf(stderr, "ZSTD_initCStream() error : %s \n", ZSTD_getErrorName(initResult)); exit(11); }
-
- size_t read, toRead = buffInSize;
- while( (read = fread_orDie(buffIn, toRead, fin)) ) {
- ZSTD_inBuffer input = { buffIn, read, 0 };
- while (input.pos < input.size) {
- ZSTD_outBuffer output = { buffOut, buffOutSize, 0 };
- toRead = ZSTD_compressStream(cstream, &output , &input); /* toRead is guaranteed to be <= ZSTD_CStreamInSize() */
- if (ZSTD_isError(toRead)) { fprintf(stderr, "ZSTD_compressStream() error : %s \n", ZSTD_getErrorName(toRead)); exit(12); }
- if (toRead > buffInSize) toRead = buffInSize; /* Safely handle case when `buffInSize` is manually changed to a value < ZSTD_CStreamInSize()*/
- fwrite_orDie(buffOut, output.pos, fout);
- }
- }
-
- ZSTD_outBuffer output = { buffOut, buffOutSize, 0 };
- size_t const remainingToFlush = ZSTD_endStream(cstream, &output); /* close frame */
- if (remainingToFlush) { fprintf(stderr, "not fully flushed"); exit(13); }
- fwrite_orDie(buffOut, output.pos, fout);
-
- ZSTD_freeCStream(cstream);
- fclose_orDie(fout);
- fclose_orDie(fin);
- free(buffIn);
- free(buffOut);
-}
-
-
-static const char* createOutFilename_orDie(const char* filename)
-{
- size_t const inL = strlen(filename);
- size_t const outL = inL + 5;
- void* outSpace = malloc_orDie(outL);
- memset(outSpace, 0, outL);
- strcat(outSpace, filename);
- strcat(outSpace, ".zst");
- return (const char*)outSpace;
-}
-
-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\n", exeName);
- return 1;
- }
-
- const char* const inFilename = argv[1];
-
- const char* const outFilename = createOutFilename_orDie(inFilename);
- compressFile_orDie(inFilename, outFilename, 1);
-
- return 0;
-}