vendor/zstd

13 files changed, 0 insertions, 1536 deletions

diff --git a/examples/Makefile b/examples/Makefile
deleted file mode 100644
index 31f52d35763f..000000000000
--- a/examples/Makefile
+++ /dev/null
@@ -1,93 +0,0 @@
-# ################################################################
-# Copyright (c) Meta Platforms, Inc. and affiliates.
-# 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.
-# ################################################################
-
-LIBDIR =../lib
-CPPFLAGS += -I$(LIBDIR)
-LIB = $(LIBDIR)/libzstd.a
-
-
-.PHONY: default
-default: all
-
-.PHONY: all
-all: simple_compression simple_decompression \
-	multiple_simple_compression\
-	dictionary_compression dictionary_decompression \
-	streaming_compression streaming_decompression \
-	multiple_streaming_compression streaming_memory_usage
-
-$(LIB) :
-	$(MAKE) -C $(LIBDIR) libzstd.a
-
-simple_compression.o: common.h
-simple_compression : $(LIB)
-
-simple_decompression.o: common.h
-simple_decompression : $(LIB)
-
-multiple_simple_compression.o: common.h
-multiple_simple_compression : $(LIB)
-
-dictionary_compression.o: common.h
-dictionary_compression : $(LIB)
-
-dictionary_decompression.o: common.h
-dictionary_decompression : $(LIB)
-
-streaming_compression.o: common.h
-streaming_compression : $(LIB)
-
-multiple_streaming_compression.o: common.h
-multiple_streaming_compression : $(LIB)
-
-streaming_decompression.o: common.h
-streaming_decompression : $(LIB)
-
-streaming_memory_usage.o: common.h
-streaming_memory_usage : $(LIB)
-
-
-.PHONY:clean
-clean:
-	@$(RM) core *.o tmp* result* *.zst \
-        simple_compression simple_decompression \
-        multiple_simple_compression \
-        dictionary_compression dictionary_decompression \
-        streaming_compression streaming_decompression \
-        multiple_streaming_compression streaming_memory_usage
-	@echo Cleaning completed
-
-.PHONY:test
-test: all
-	cp README.md tmp
-	cp Makefile tmp2
-	@echo -- Simple compression tests
-	./simple_compression tmp
-	./simple_decompression tmp.zst
-	./multiple_simple_compression *.c
-	./streaming_decompression tmp.zst > /dev/null
-	@echo -- Streaming memory usage
-	./streaming_memory_usage
-	@echo -- Streaming compression tests
-	./streaming_compression tmp
-	./streaming_decompression tmp.zst > /dev/null
-	@echo -- Edge cases detection
-	! ./streaming_decompression tmp    # invalid input, must fail
-	! ./simple_decompression tmp       # invalid input, must fail
-	touch tmpNull                      # create 0-size file
-	./simple_compression tmpNull
-	./simple_decompression tmpNull.zst # 0-size frame : must work
-	@echo -- Multiple streaming tests
-	./multiple_streaming_compression *.c
-	@echo -- Dictionary compression tests
-	./dictionary_compression tmp2 tmp README.md
-	./dictionary_decompression tmp2.zst tmp.zst README.md
-	$(RM) tmp* *.zst
-	@echo tests completed
diff --git a/examples/README.md b/examples/README.md
deleted file mode 100644
index 0bff7ac19a29..000000000000
--- a/examples/README.md
+++ /dev/null
@@ -1,46 +0,0 @@
-Zstandard library : usage examples
-==================================
-
-- [Simple compression](simple_compression.c) :
-  Compress a single file.
-  Introduces usage of : `ZSTD_compress()`
-
-- [Simple decompression](simple_decompression.c) :
-  Decompress a single file.
-  Only compatible with simple compression.
-  Result remains in memory.
-  Introduces usage of : `ZSTD_decompress()`
-
-- [Multiple simple compression](multiple_simple_compression.c) :
-  Compress multiple files (in simple mode) in a single command line.
-  Demonstrates memory preservation technique that
-  minimizes malloc()/free() calls by re-using existing resources.
-  Introduces usage of : `ZSTD_compressCCtx()`
-
-- [Streaming memory usage](streaming_memory_usage.c) :
-  Provides amount of memory used by streaming context.
-  Introduces usage of : `ZSTD_sizeof_CStream()`
-
-- [Streaming compression](streaming_compression.c) :
-  Compress a single file.
-  Introduces usage of : `ZSTD_compressStream()`
-
-- [Multiple Streaming compression](multiple_streaming_compression.c) :
-  Compress multiple files (in streaming mode) in a single command line.
-  Introduces memory usage preservation technique,
-  reducing impact of malloc()/free() and memset() by re-using existing resources.
-
-- [Streaming decompression](streaming_decompression.c) :
-  Decompress a single file compressed by zstd.
-  Compatible with both simple and streaming compression.
-  Result is sent to stdout.
-  Introduces usage of : `ZSTD_decompressStream()`
-
-- [Dictionary compression](dictionary_compression.c) :
-  Compress multiple files using the same dictionary.
-  Introduces usage of : `ZSTD_createCDict()` and `ZSTD_compress_usingCDict()`
-
-- [Dictionary decompression](dictionary_decompression.c) :
-  Decompress multiple files using the same dictionary.
-  Result remains in memory.
-  Introduces usage of : `ZSTD_createDDict()` and `ZSTD_decompress_usingDDict()`
diff --git a/examples/common.h b/examples/common.h
deleted file mode 100644
index 4873e877a7af..000000000000
--- a/examples/common.h
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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.
- */
-
-/*
- * This header file has common utility functions used in examples.
- */
-#ifndef COMMON_H
-#define COMMON_H
-
-#include <stdlib.h>    // malloc, free, exit
-#include <stdio.h>     // fprintf, perror, fopen, etc.
-#include <string.h>    // strerror
-#include <errno.h>     // errno
-#include <sys/stat.h>  // stat
-#include <zstd.h>
-
-
-/* UNUSED_ATTR tells the compiler it is okay if the function is unused. */
-#if defined(__GNUC__)
-#  define UNUSED_ATTR __attribute__((unused))
-#else
-#  define UNUSED_ATTR
-#endif
-
-#define HEADER_FUNCTION static UNUSED_ATTR
-
-
-/*
- * Define the returned error code from utility functions.
- */
-typedef enum {
-    ERROR_fsize = 1,
-    ERROR_fopen = 2,
-    ERROR_fclose = 3,
-    ERROR_fread = 4,
-    ERROR_fwrite = 5,
-    ERROR_loadFile = 6,
-    ERROR_saveFile = 7,
-    ERROR_malloc = 8,
-    ERROR_largeFile = 9,
-} COMMON_ErrorCode;
-
-/*! CHECK
- * Check that the condition holds. If it doesn't print a message and die.
- */
-#define CHECK(cond, ...)                        \
-    do {                                        \
-        if (!(cond)) {                          \
-            fprintf(stderr,                     \
-                    "%s:%d CHECK(%s) failed: ", \
-                    __FILE__,                   \
-                    __LINE__,                   \
-                    #cond);                     \
-            fprintf(stderr, "" __VA_ARGS__);    \
-            fprintf(stderr, "\n");              \
-            exit(1);                            \
-        }                                       \
-    } while (0)
-
-/*! CHECK_ZSTD
- * Check the zstd error code and die if an error occurred after printing a
- * message.
- */
-#define CHECK_ZSTD(fn)                                           \
-    do {                                                         \
-        size_t const err = (fn);                                 \
-        CHECK(!ZSTD_isError(err), "%s", ZSTD_getErrorName(err)); \
-    } while (0)
-
-/*! fsize_orDie() :
- * Get the size of a given file path.
- *
- * @return The size of a given file path.
- */
-HEADER_FUNCTION size_t fsize_orDie(const char *filename)
-{
-    struct stat st;
-    if (stat(filename, &st) != 0) {
-        /* error */
-        perror(filename);
-        exit(ERROR_fsize);
-    }
-
-    off_t const fileSize = st.st_size;
-    size_t const size = (size_t)fileSize;
-    /* 1. fileSize should be non-negative,
-     * 2. if off_t -> size_t type conversion results in discrepancy,
-     *    the file size is too large for type size_t.
-     */
-    if ((fileSize < 0) || (fileSize != (off_t)size)) {
-        fprintf(stderr, "%s : filesize too large \n", filename);
-        exit(ERROR_largeFile);
-    }
-    return size;
-}
-
-/*! fopen_orDie() :
- * Open a file using given file path and open option.
- *
- * @return If successful this function will return a FILE pointer to an
- * opened file otherwise it sends an error to stderr and exits.
- */
-HEADER_FUNCTION FILE* fopen_orDie(const char *filename, const char *instruction)
-{
-    FILE* const inFile = fopen(filename, instruction);
-    if (inFile) return inFile;
-    /* error */
-    perror(filename);
-    exit(ERROR_fopen);
-}
-
-/*! fclose_orDie() :
- * Close an opened file using given FILE pointer.
- */
-HEADER_FUNCTION void fclose_orDie(FILE* file)
-{
-    if (!fclose(file)) { return; };
-    /* error */
-    perror("fclose");
-    exit(ERROR_fclose);
-}
-
-/*! fread_orDie() :
- *
- * Read sizeToRead bytes from a given file, storing them at the
- * location given by buffer.
- *
- * @return The number of bytes read.
- */
-HEADER_FUNCTION 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(ERROR_fread);
-}
-
-/*! fwrite_orDie() :
- *
- * Write sizeToWrite bytes to a file pointed to by file, obtaining
- * them from a location given by buffer.
- *
- * Note: This function will send an error to stderr and exit if it
- * cannot write data to the given file pointer.
- *
- * @return The number of bytes written.
- */
-HEADER_FUNCTION 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(ERROR_fwrite);
-}
-
-/*! malloc_orDie() :
- * Allocate memory.
- *
- * @return If successful this function returns a pointer to allo-
- * cated memory.  If there is an error, this function will send that
- * error to stderr and exit.
- */
-HEADER_FUNCTION void* malloc_orDie(size_t size)
-{
-    void* const buff = malloc(size);
-    if (buff) return buff;
-    /* error */
-    perror("malloc");
-    exit(ERROR_malloc);
-}
-
-/*! loadFile_orDie() :
- * load file into buffer (memory).
- *
- * Note: This function will send an error to stderr and exit if it
- * cannot read data from the given file path.
- *
- * @return If successful this function will load file into buffer and
- * return file size, otherwise it will printout an error to stderr and exit.
- */
-HEADER_FUNCTION size_t loadFile_orDie(const char* fileName, void* buffer, size_t bufferSize)
-{
-    size_t const fileSize = fsize_orDie(fileName);
-    CHECK(fileSize <= bufferSize, "File too large!");
-
-    FILE* const inFile = fopen_orDie(fileName, "rb");
-    size_t const readSize = fread(buffer, 1, fileSize, inFile);
-    if (readSize != (size_t)fileSize) {
-        fprintf(stderr, "fread: %s : %s \n", fileName, strerror(errno));
-        exit(ERROR_fread);
-    }
-    fclose(inFile);  /* can't fail, read only */
-    return fileSize;
-}
-
-/*! mallocAndLoadFile_orDie() :
- * allocate memory buffer and then load file into it.
- *
- * Note: This function will send an error to stderr and exit if memory allocation
- * fails or it cannot read data from the given file path.
- *
- * @return If successful this function will return buffer and bufferSize(=fileSize),
- * otherwise it will printout an error to stderr and exit.
- */
-HEADER_FUNCTION void* mallocAndLoadFile_orDie(const char* fileName, size_t* bufferSize)
-{
-    size_t const fileSize = fsize_orDie(fileName);
-    *bufferSize = fileSize;
-    void* const buffer = malloc_orDie(*bufferSize);
-    loadFile_orDie(fileName, buffer, *bufferSize);
-    return buffer;
-}
-
-/*! saveFile_orDie() :
- *
- * Save buffSize bytes to a given file path, obtaining them from a location pointed
- * to by buff.
- *
- * Note: This function will send an error to stderr and exit if it
- * cannot write to a given file.
- */
-HEADER_FUNCTION void saveFile_orDie(const char* fileName, const void* buff, size_t buffSize)
-{
-    FILE* const oFile = fopen_orDie(fileName, "wb");
-    size_t const wSize = fwrite(buff, 1, buffSize, oFile);
-    if (wSize != (size_t)buffSize) {
-        fprintf(stderr, "fwrite: %s : %s \n", fileName, strerror(errno));
-        exit(ERROR_fwrite);
-    }
-    if (fclose(oFile)) {
-        perror(fileName);
-        exit(ERROR_fclose);
-    }
-}
-
-#endif
diff --git a/examples/dictionary_compression.c b/examples/dictionary_compression.c
deleted file mode 100644
index 83edc1cad9b7..000000000000
--- a/examples/dictionary_compression.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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.
-**/
-
-/* This example deals with Dictionary compression,
- * its counterpart is `examples/dictionary_decompression.c` .
- * These examples presume that a dictionary already exists.
- * The main method to create a dictionary is `zstd --train`,
- * look at the CLI documentation for details.
- * Another possible method is to employ dictionary training API,
- * published in `lib/zdict.h` .
-**/
-
-#include <stdio.h>     // printf
-#include <stdlib.h>    // free
-#include <string.h>    // memset, strcat
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-/* createDict() :
-** `dictFileName` is supposed already created using `zstd --train` */
-static ZSTD_CDict* createCDict_orDie(const char* dictFileName, int cLevel)
-{
-    size_t dictSize;
-    printf("loading dictionary %s \n", dictFileName);
-    void* const dictBuffer = mallocAndLoadFile_orDie(dictFileName, &dictSize);
-    ZSTD_CDict* const cdict = ZSTD_createCDict(dictBuffer, dictSize, cLevel);
-    CHECK(cdict != NULL, "ZSTD_createCDict() failed!");
-    free(dictBuffer);
-    return cdict;
-}
-
-
-static void compress(const char* fname, const char* oname, const ZSTD_CDict* cdict)
-{
-    size_t fSize;
-    void* const fBuff = mallocAndLoadFile_orDie(fname, &fSize);
-    size_t const cBuffSize = ZSTD_compressBound(fSize);
-    void* const cBuff = malloc_orDie(cBuffSize);
-
-    /* Compress using the dictionary.
-     * This function writes the dictionary id, and content size into the header.
-     * But, it doesn't use a checksum. You can control these options using the
-     * advanced API: ZSTD_CCtx_setParameter(), ZSTD_CCtx_refCDict(),
-     * and ZSTD_compress2().
-     */
-    ZSTD_CCtx* const cctx = ZSTD_createCCtx();
-    CHECK(cctx != NULL, "ZSTD_createCCtx() failed!");
-    size_t const cSize = ZSTD_compress_usingCDict(cctx, cBuff, cBuffSize, fBuff, fSize, cdict);
-    CHECK_ZSTD(cSize);
-
-    saveFile_orDie(oname, cBuff, cSize);
-
-    /* success */
-    printf("%25s : %6u -> %7u - %s \n", fname, (unsigned)fSize, (unsigned)cSize, oname);
-
-    ZSTD_freeCCtx(cctx);   /* never fails */
-    free(fBuff);
-    free(cBuff);
-}
-
-
-static 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 (char*)outSpace;
-}
-
-int main(int argc, const char** argv)
-{
-    const char* const exeName = argv[0];
-    int const cLevel = 3;
-
-    if (argc<3) {
-        fprintf(stderr, "wrong arguments\n");
-        fprintf(stderr, "usage:\n");
-        fprintf(stderr, "%s [FILES] dictionary\n", exeName);
-        return 1;
-    }
-
-    /* load dictionary only once */
-    const char* const dictName = argv[argc-1];
-    ZSTD_CDict* const dictPtr = createCDict_orDie(dictName, cLevel);
-
-    int u;
-    for (u=1; u<argc-1; u++) {
-        const char* inFilename = argv[u];
-        char* const outFilename = createOutFilename_orDie(inFilename);
-        compress(inFilename, outFilename, dictPtr);
-        free(outFilename);
-    }
-
-    ZSTD_freeCDict(dictPtr);
-    printf("All %u files compressed. \n", argc-2);
-    return 0;
-}
diff --git a/examples/dictionary_decompression.c b/examples/dictionary_decompression.c
deleted file mode 100644
index e6c999964a24..000000000000
--- a/examples/dictionary_decompression.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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 <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-/* createDict() :
-   `dictFileName` is supposed to have been created using `zstd --train` */
-static ZSTD_DDict* createDict_orDie(const char* dictFileName)
-{
-    size_t dictSize;
-    printf("loading dictionary %s \n", dictFileName);
-    void* const dictBuffer = mallocAndLoadFile_orDie(dictFileName, &dictSize);
-    ZSTD_DDict* const ddict = ZSTD_createDDict(dictBuffer, dictSize);
-    CHECK(ddict != NULL, "ZSTD_createDDict() failed!");
-    free(dictBuffer);
-    return ddict;
-}
-
-static void decompress(const char* fname, const ZSTD_DDict* ddict)
-{
-    size_t cSize;
-    void* const cBuff = mallocAndLoadFile_orDie(fname, &cSize);
-    /* Read the content size from the frame header. For simplicity we require
-     * that it is always present. By default, zstd will write the content size
-     * in the header when it is known. If you can't guarantee that the frame
-     * content size is always written into the header, either use streaming
-     * decompression, or ZSTD_decompressBound().
-     */
-    unsigned long long const rSize = ZSTD_getFrameContentSize(cBuff, cSize);
-    CHECK(rSize != ZSTD_CONTENTSIZE_ERROR, "%s: not compressed by zstd!", fname);
-    CHECK(rSize != ZSTD_CONTENTSIZE_UNKNOWN, "%s: original size unknown!", fname);
-    void* const rBuff = malloc_orDie((size_t)rSize);
-
-    /* Check that the dictionary ID matches.
-     * If a non-zstd dictionary is used, then both will be zero.
-     * By default zstd always writes the dictionary ID into the frame.
-     * Zstd will check if there is a dictionary ID mismatch as well.
-     */
-    unsigned const expectedDictID = ZSTD_getDictID_fromDDict(ddict);
-    unsigned const actualDictID = ZSTD_getDictID_fromFrame(cBuff, cSize);
-    CHECK(actualDictID == expectedDictID,
-          "DictID mismatch: expected %u got %u",
-          expectedDictID,
-          actualDictID);
-
-    /* Decompress using the dictionary.
-     * If you need to control the decompression parameters, then use the
-     * advanced API: ZSTD_DCtx_setParameter(), ZSTD_DCtx_refDDict(), and
-     * ZSTD_decompressDCtx().
-     */
-    ZSTD_DCtx* const dctx = ZSTD_createDCtx();
-    CHECK(dctx != NULL, "ZSTD_createDCtx() failed!");
-    size_t const dSize = ZSTD_decompress_usingDDict(dctx, rBuff, rSize, cBuff, cSize, ddict);
-    CHECK_ZSTD(dSize);
-    /* When zstd knows the content size, it will error if it doesn't match. */
-    CHECK(dSize == rSize, "Impossible because zstd will check this condition!");
-
-    /* success */
-    printf("%25s : %6u -> %7u \n", fname, (unsigned)cSize, (unsigned)rSize);
-
-    ZSTD_freeDCtx(dctx);
-    free(rBuff);
-    free(cBuff);
-}
-
-
-int main(int argc, const char** argv)
-{
-    const char* const exeName = argv[0];
-
-    if (argc<3) {
-        printf("wrong arguments\n");
-        printf("usage:\n");
-        printf("%s [FILES] dictionary\n", exeName);
-        return 1;
-    }
-
-    /* load dictionary only once */
-    const char* const dictName = argv[argc-1];
-    ZSTD_DDict* const dictPtr = createDict_orDie(dictName);
-
-    int u;
-    for (u=1; u<argc-1; u++) decompress(argv[u], dictPtr);
-
-    ZSTD_freeDDict(dictPtr);
-    printf("All %u files correctly decoded (in memory) \n", argc-2);
-    return 0;
-}
diff --git a/examples/multiple_simple_compression.c b/examples/multiple_simple_compression.c
deleted file mode 100644
index bf77ca13317f..000000000000
--- a/examples/multiple_simple_compression.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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;
-}
diff --git a/examples/multiple_streaming_compression.c b/examples/multiple_streaming_compression.c
deleted file mode 100644
index b12ad03dce14..000000000000
--- a/examples/multiple_streaming_compression.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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.
- */
-
-
-/* The objective of this example is to show of to compress multiple successive files
-*  while preserving memory management.
-*  All structures and buffers will be created only once,
-*  and shared across all compression operations */
-
-#include <stdio.h>     // printf
-#include <stdlib.h>    // free
-#include <string.h>    // memset, strcat
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-typedef struct {
-    void* buffIn;
-    void* buffOut;
-    size_t buffInSize;
-    size_t buffOutSize;
-    ZSTD_CCtx* cctx;
-} resources;
-
-static resources createResources_orDie(int cLevel)
-{
-    resources ress;
-    ress.buffInSize = ZSTD_CStreamInSize();   /* can always read one full block */
-    ress.buffOutSize= ZSTD_CStreamOutSize();  /* can always flush a full block */
-    ress.buffIn = malloc_orDie(ress.buffInSize);
-    ress.buffOut= malloc_orDie(ress.buffOutSize);
-    ress.cctx = ZSTD_createCCtx();
-    CHECK(ress.cctx != NULL, "ZSTD_createCCtx() failed!");
-
-    /* Set any compression parameters you want here.
-     * They will persist for every compression operation.
-     * Here we set the compression level, and enable the checksum.
-     */
-    CHECK_ZSTD( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_c_compressionLevel, cLevel) );
-    CHECK_ZSTD( ZSTD_CCtx_setParameter(ress.cctx, ZSTD_c_checksumFlag, 1) );
-    return ress;
-}
-
-static void freeResources(resources ress)
-{
-    ZSTD_freeCCtx(ress.cctx);
-    free(ress.buffIn);
-    free(ress.buffOut);
-}
-
-static void compressFile_orDie(resources ress, const char* fname, const char* outName)
-{
-    // Open the input and output files.
-    FILE* const fin  = fopen_orDie(fname, "rb");
-    FILE* const fout = fopen_orDie(outName, "wb");
-
-    /* Reset the context to a clean state to start a new compression operation.
-     * The parameters are sticky, so we keep the compression level and extra
-     * parameters that we set in createResources_orDie().
-     */
-    CHECK_ZSTD( ZSTD_CCtx_reset(ress.cctx, ZSTD_reset_session_only) );
-
-    size_t const toRead = ress.buffInSize;
-    size_t read;
-    while ( (read = fread_orDie(ress.buffIn, toRead, fin)) ) {
-        /* This loop is the same as streaming_compression.c.
-         * See that file for detailed comments.
-         */
-        int const lastChunk = (read < toRead);
-        ZSTD_EndDirective const mode = lastChunk ? ZSTD_e_end : ZSTD_e_continue;
-
-        ZSTD_inBuffer input = { ress.buffIn, read, 0 };
-        int finished;
-        do {
-            ZSTD_outBuffer output = { ress.buffOut, ress.buffOutSize, 0 };
-            size_t const remaining = ZSTD_compressStream2(ress.cctx, &output, &input, mode);
-            CHECK_ZSTD(remaining);
-            fwrite_orDie(ress.buffOut, output.pos, fout);
-            finished = lastChunk ? (remaining == 0) : (input.pos == input.size);
-        } while (!finished);
-        CHECK(input.pos == input.size,
-              "Impossible: zstd only returns 0 when the input is completely consumed!");
-    }
-
-    fclose_orDie(fout);
-    fclose_orDie(fin);
-}
-
-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;
-    }
-
-    int const cLevel = 7;
-    resources const ress = createResources_orDie(cLevel);
-    void* ofnBuffer = NULL;
-    size_t ofnbSize = 0;
-
-    int argNb;
-    for (argNb = 1; argNb < argc; argNb++) {
-        const char* const ifn = argv[argNb];
-        size_t const ifnSize = strlen(ifn);
-        size_t const ofnSize = ifnSize + 5;
-        if (ofnbSize <= ofnSize) {
-            ofnbSize = ofnSize + 16;
-            free(ofnBuffer);
-            ofnBuffer = malloc_orDie(ofnbSize);
-        }
-        memset(ofnBuffer, 0, ofnSize);
-        strcat(ofnBuffer, ifn);
-        strcat(ofnBuffer, ".zst");
-        compressFile_orDie(ress, ifn, ofnBuffer);
-    }
-
-    freeResources(ress);
-    free(ofnBuffer);
-
-    printf("compressed %i files \n", argc-1);
-
-    return 0;
-}
diff --git a/examples/simple_compression.c b/examples/simple_compression.c
deleted file mode 100644
index 7c880725fc76..000000000000
--- a/examples/simple_compression.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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>    // strlen, strcat, memset
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-static void compress_orDie(const char* fname, const char* oname)
-{
-    size_t fSize;
-    void* const fBuff = mallocAndLoadFile_orDie(fname, &fSize);
-    size_t const cBuffSize = ZSTD_compressBound(fSize);
-    void* const cBuff = malloc_orDie(cBuffSize);
-
-    /* Compress.
-     * If you are doing many compressions, you may want to reuse the context.
-     * See the multiple_simple_compression.c example.
-     */
-    size_t const cSize = ZSTD_compress(cBuff, cBuffSize, fBuff, fSize, 1);
-    CHECK_ZSTD(cSize);
-
-    saveFile_orDie(oname, cBuff, cSize);
-
-    /* success */
-    printf("%25s : %6u -> %7u - %s \n", fname, (unsigned)fSize, (unsigned)cSize, oname);
-
-    free(fBuff);
-    free(cBuff);
-}
-
-static char* createOutFilename_orDie(const char* filename)
-{
-    size_t const inL = strlen(filename);
-    size_t const outL = inL + 5;
-    void* const outSpace = malloc_orDie(outL);
-    memset(outSpace, 0, outL);
-    strcat(outSpace, filename);
-    strcat(outSpace, ".zst");
-    return (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];
-
-    char* const outFilename = createOutFilename_orDie(inFilename);
-    compress_orDie(inFilename, outFilename);
-    free(outFilename);
-    return 0;
-}
diff --git a/examples/simple_decompression.c b/examples/simple_decompression.c
deleted file mode 100644
index f499156f64ee..000000000000
--- a/examples/simple_decompression.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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 <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-static void decompress(const char* fname)
-{
-    size_t cSize;
-    void* const cBuff = mallocAndLoadFile_orDie(fname, &cSize);
-    /* Read the content size from the frame header. For simplicity we require
-     * that it is always present. By default, zstd will write the content size
-     * in the header when it is known. If you can't guarantee that the frame
-     * content size is always written into the header, either use streaming
-     * decompression, or ZSTD_decompressBound().
-     */
-    unsigned long long const rSize = ZSTD_getFrameContentSize(cBuff, cSize);
-    CHECK(rSize != ZSTD_CONTENTSIZE_ERROR, "%s: not compressed by zstd!", fname);
-    CHECK(rSize != ZSTD_CONTENTSIZE_UNKNOWN, "%s: original size unknown!", fname);
-
-    void* const rBuff = malloc_orDie((size_t)rSize);
-
-    /* Decompress.
-     * If you are doing many decompressions, you may want to reuse the context
-     * and use ZSTD_decompressDCtx(). If you want to set advanced parameters,
-     * use ZSTD_DCtx_setParameter().
-     */
-    size_t const dSize = ZSTD_decompress(rBuff, rSize, cBuff, cSize);
-    CHECK_ZSTD(dSize);
-    /* When zstd knows the content size, it will error if it doesn't match. */
-    CHECK(dSize == rSize, "Impossible because zstd will check this condition!");
-
-    /* success */
-    printf("%25s : %6u -> %7u \n", fname, (unsigned)cSize, (unsigned)rSize);
-
-    free(rBuff);
-    free(cBuff);
-}
-
-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;
-    }
-
-    decompress(argv[1]);
-
-    printf("%s correctly decoded (in memory). \n", argv[1]);
-
-    return 0;
-}
diff --git a/examples/streaming_compression.c b/examples/streaming_compression.c
deleted file mode 100644
index 063aa82a2946..000000000000
--- a/examples/streaming_compression.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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>    // memset, strcat, strlen
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-static void compressFile_orDie(const char* fname, const char* outName, int cLevel,
-                               int nbThreads)
-{
-    fprintf (stderr, "Starting compression of %s with level %d, using %d threads\n",
-             fname, cLevel, nbThreads);
-
-    /* Open the input and output files. */
-    FILE* const fin  = fopen_orDie(fname, "rb");
-    FILE* const fout = fopen_orDie(outName, "wb");
-    /* Create the input and output buffers.
-     * They may be any size, but we recommend using these functions to size them.
-     * Performance will only suffer significantly for very tiny buffers.
-     */
-    size_t const buffInSize = ZSTD_CStreamInSize();
-    void*  const buffIn  = malloc_orDie(buffInSize);
-    size_t const buffOutSize = ZSTD_CStreamOutSize();
-    void*  const buffOut = malloc_orDie(buffOutSize);
-
-    /* Create the context. */
-    ZSTD_CCtx* const cctx = ZSTD_createCCtx();
-    CHECK(cctx != NULL, "ZSTD_createCCtx() failed!");
-
-    /* Set any parameters you want.
-     * Here we set the compression level, and enable the checksum.
-     */
-    CHECK_ZSTD( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, cLevel) );
-    CHECK_ZSTD( ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1) );
-    if (nbThreads > 1) {
-        size_t const r = ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, nbThreads);
-        if (ZSTD_isError(r)) {
-            fprintf (stderr, "Note: the linked libzstd library doesn't support multithreading. "
-                             "Reverting to single-thread mode. \n");
-        }
-    }
-
-    /* This loop read from the input file, compresses that entire chunk,
-     * and writes all output produced to the output file.
-     */
-    size_t const toRead = buffInSize;
-    for (;;) {
-        size_t read = fread_orDie(buffIn, toRead, fin);
-        /* Select the flush mode.
-         * If the read may not be finished (read == toRead) we use
-         * ZSTD_e_continue. If this is the last chunk, we use ZSTD_e_end.
-         * Zstd optimizes the case where the first flush mode is ZSTD_e_end,
-         * since it knows it is compressing the entire source in one pass.
-         */
-        int const lastChunk = (read < toRead);
-        ZSTD_EndDirective const mode = lastChunk ? ZSTD_e_end : ZSTD_e_continue;
-        /* Set the input buffer to what we just read.
-         * We compress until the input buffer is empty, each time flushing the
-         * output.
-         */
-        ZSTD_inBuffer input = { buffIn, read, 0 };
-        int finished;
-        do {
-            /* Compress into the output buffer and write all of the output to
-             * the file so we can reuse the buffer next iteration.
-             */
-            ZSTD_outBuffer output = { buffOut, buffOutSize, 0 };
-            size_t const remaining = ZSTD_compressStream2(cctx, &output , &input, mode);
-            CHECK_ZSTD(remaining);
-            fwrite_orDie(buffOut, output.pos, fout);
-            /* If we're on the last chunk we're finished when zstd returns 0,
-             * which means its consumed all the input AND finished the frame.
-             * Otherwise, we're finished when we've consumed all the input.
-             */
-            finished = lastChunk ? (remaining == 0) : (input.pos == input.size);
-        } while (!finished);
-        CHECK(input.pos == input.size,
-              "Impossible: zstd only returns 0 when the input is completely consumed!");
-
-        if (lastChunk) {
-            break;
-        }
-    }
-
-    ZSTD_freeCCtx(cctx);
-    fclose_orDie(fout);
-    fclose_orDie(fin);
-    free(buffIn);
-    free(buffOut);
-}
-
-
-static char* createOutFilename_orDie(const char* filename)
-{
-    size_t const inL = strlen(filename);
-    size_t const outL = inL + 5;
-    void* const outSpace = malloc_orDie(outL);
-    memset(outSpace, 0, outL);
-    strcat(outSpace, filename);
-    strcat(outSpace, ".zst");
-    return (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 [LEVEL] [THREADS]\n", exeName);
-        return 1;
-    }
-
-    int cLevel = 1;
-    int nbThreads = 1;
-
-    if (argc >= 3) {
-      cLevel = atoi (argv[2]);
-      CHECK(cLevel != 0, "can't parse LEVEL!");
-    }
-
-    if (argc >= 4) {
-      nbThreads = atoi (argv[3]);
-      CHECK(nbThreads != 0, "can't parse THREADS!");
-    }
-
-    const char* const inFilename = argv[1];
-
-    char* const outFilename = createOutFilename_orDie(inFilename);
-    compressFile_orDie(inFilename, outFilename, cLevel, nbThreads);
-
-    free(outFilename);   /* not strictly required, since program execution stops there,
-                          * but some static analyzer may complain otherwise */
-    return 0;
-}
diff --git a/examples/streaming_compression_thread_pool.c b/examples/streaming_compression_thread_pool.c
deleted file mode 100644
index a1a024129f2b..000000000000
--- a/examples/streaming_compression_thread_pool.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * Copyright (c) Martin Liska, SUSE, Meta Platforms, Inc. and affiliates.
- * 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>    // memset, strcat, strlen
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-#include <pthread.h>
-
-typedef struct compress_args
-{
-  const char *fname;
-  char *outName;
-  int cLevel;
-#if defined(ZSTD_STATIC_LINKING_ONLY)
-  ZSTD_threadPool *pool;
-#endif
-} compress_args_t;
-
-static void *compressFile_orDie(void *data)
-{
-    const int nbThreads = 16;
-
-    compress_args_t *args = (compress_args_t *)data;
-    fprintf (stderr, "Starting compression of %s with level %d, using %d threads\n", args->fname, args->cLevel, nbThreads);
-    /* Open the input and output files. */
-    FILE* const fin  = fopen_orDie(args->fname, "rb");
-    FILE* const fout = fopen_orDie(args->outName, "wb");
-    /* Create the input and output buffers.
-     * They may be any size, but we recommend using these functions to size them.
-     * Performance will only suffer significantly for very tiny buffers.
-     */
-    size_t const buffInSize = ZSTD_CStreamInSize();
-    void*  const buffIn  = malloc_orDie(buffInSize);
-    size_t const buffOutSize = ZSTD_CStreamOutSize();
-    void*  const buffOut = malloc_orDie(buffOutSize);
-
-    /* Create the context. */
-    ZSTD_CCtx* const cctx = ZSTD_createCCtx();
-    CHECK(cctx != NULL, "ZSTD_createCCtx() failed!");
-
-#if defined(ZSTD_STATIC_LINKING_ONLY)
-    size_t r = ZSTD_CCtx_refThreadPool(cctx, args->pool);
-    CHECK(r == 0, "ZSTD_CCtx_refThreadPool failed!");
-#endif
-
-    /* Set any parameters you want.
-     * Here we set the compression level, and enable the checksum.
-     */
-    CHECK_ZSTD( ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, args->cLevel) );
-    CHECK_ZSTD( ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1) );
-    ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, nbThreads);
-
-    /* This loop reads from the input file, compresses that entire chunk,
-     * and writes all output produced to the output file.
-     */
-    size_t const toRead = buffInSize;
-    for (;;) {
-        size_t read = fread_orDie(buffIn, toRead, fin);
-        /* Select the flush mode.
-         * If the read may not be finished (read == toRead) we use
-         * ZSTD_e_continue. If this is the last chunk, we use ZSTD_e_end.
-         * Zstd optimizes the case where the first flush mode is ZSTD_e_end,
-         * since it knows it is compressing the entire source in one pass.
-         */
-        int const lastChunk = (read < toRead);
-        ZSTD_EndDirective const mode = lastChunk ? ZSTD_e_end : ZSTD_e_continue;
-        /* Set the input buffer to what we just read.
-         * We compress until the input buffer is empty, each time flushing the
-         * output.
-         */
-        ZSTD_inBuffer input = { buffIn, read, 0 };
-        int finished;
-        do {
-            /* Compress into the output buffer and write all of the output to
-             * the file so we can reuse the buffer next iteration.
-             */
-            ZSTD_outBuffer output = { buffOut, buffOutSize, 0 };
-            size_t const remaining = ZSTD_compressStream2(cctx, &output , &input, mode);
-            CHECK_ZSTD(remaining);
-            fwrite_orDie(buffOut, output.pos, fout);
-            /* If we're on the last chunk we're finished when zstd returns 0,
-             * which means its consumed all the input AND finished the frame.
-             * Otherwise, we're finished when we've consumed all the input.
-             */
-            finished = lastChunk ? (remaining == 0) : (input.pos == input.size);
-        } while (!finished);
-        CHECK(input.pos == input.size,
-              "Impossible: zstd only returns 0 when the input is completely consumed!");
-
-        if (lastChunk) {
-            break;
-        }
-    }
-
-    fprintf (stderr, "Finishing compression of %s\n", args->outName);
-
-    ZSTD_freeCCtx(cctx);
-    fclose_orDie(fout);
-    fclose_orDie(fin);
-    free(buffIn);
-    free(buffOut);
-    free(args->outName);
-
-    return NULL;
-}
-
-
-static char* createOutFilename_orDie(const char* filename)
-{
-    size_t const inL = strlen(filename);
-    size_t const outL = inL + 5;
-    void* const outSpace = malloc_orDie(outL);
-    memset(outSpace, 0, outL);
-    strcat(outSpace, filename);
-    strcat(outSpace, ".zst");
-    return (char*)outSpace;
-}
-
-int main(int argc, const char** argv)
-{
-    const char* const exeName = argv[0];
-
-    if (argc<=3) {
-        printf("wrong arguments\n");
-        printf("usage:\n");
-        printf("%s POOL_SIZE LEVEL FILES\n", exeName);
-        return 1;
-    }
-
-    int pool_size = atoi (argv[1]);
-    CHECK(pool_size != 0, "can't parse POOL_SIZE!");
-
-    int level = atoi (argv[2]);
-    CHECK(level != 0, "can't parse LEVEL!");
-
-    argc -= 3;
-    argv += 3;
-
-#if defined(ZSTD_STATIC_LINKING_ONLY)
-    ZSTD_threadPool *pool = ZSTD_createThreadPool (pool_size);
-    CHECK(pool != NULL, "ZSTD_createThreadPool() failed!");
-    fprintf (stderr, "Using shared thread pool of size %d\n", pool_size);
-#else
-    fprintf (stderr, "All threads use its own thread pool\n");
-#endif
-
-    pthread_t *threads = malloc_orDie(argc * sizeof(pthread_t));
-    compress_args_t *args = malloc_orDie(argc * sizeof(compress_args_t));
-
-    for (unsigned i = 0; i < argc; i++)
-    {
-      args[i].fname = argv[i];
-      args[i].outName = createOutFilename_orDie(args[i].fname);
-      args[i].cLevel = level;
-#if defined(ZSTD_STATIC_LINKING_ONLY)
-      args[i].pool = pool;
-#endif
-
-      pthread_create (&threads[i], NULL, compressFile_orDie, &args[i]);
-    }
-
-    for (unsigned i = 0; i < argc; i++)
-      pthread_join (threads[i], NULL);
-
-#if defined(ZSTD_STATIC_LINKING_ONLY)
-    ZSTD_freeThreadPool (pool);
-#endif
-
-    return 0;
-}
diff --git a/examples/streaming_decompression.c b/examples/streaming_decompression.c
deleted file mode 100644
index 95fa11227739..000000000000
--- a/examples/streaming_decompression.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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>     // fprintf
-#include <stdlib.h>    // free
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-static void decompressFile_orDie(const char* fname)
-{
-    FILE* const fin  = fopen_orDie(fname, "rb");
-    size_t const buffInSize = ZSTD_DStreamInSize();
-    void*  const buffIn  = malloc_orDie(buffInSize);
-    FILE* const fout = stdout;
-    size_t const buffOutSize = ZSTD_DStreamOutSize();  /* Guarantee to successfully flush at least one complete compressed block in all circumstances. */
-    void*  const buffOut = malloc_orDie(buffOutSize);
-
-    ZSTD_DCtx* const dctx = ZSTD_createDCtx();
-    CHECK(dctx != NULL, "ZSTD_createDCtx() failed!");
-
-    /* This loop assumes that the input file is one or more concatenated zstd
-     * streams. This example won't work if there is trailing non-zstd data at
-     * the end, but streaming decompression in general handles this case.
-     * ZSTD_decompressStream() returns 0 exactly when the frame is completed,
-     * and doesn't consume input after the frame.
-     */
-    size_t const toRead = buffInSize;
-    size_t read;
-    size_t lastRet = 0;
-    int isEmpty = 1;
-    while ( (read = fread_orDie(buffIn, toRead, fin)) ) {
-        isEmpty = 0;
-        ZSTD_inBuffer input = { buffIn, read, 0 };
-        /* Given a valid frame, zstd won't consume the last byte of the frame
-         * until it has flushed all of the decompressed data of the frame.
-         * Therefore, instead of checking if the return code is 0, we can
-         * decompress just check if input.pos < input.size.
-         */
-        while (input.pos < input.size) {
-            ZSTD_outBuffer output = { buffOut, buffOutSize, 0 };
-            /* The return code is zero if the frame is complete, but there may
-             * be multiple frames concatenated together. Zstd will automatically
-             * reset the context when a frame is complete. Still, calling
-             * ZSTD_DCtx_reset() can be useful to reset the context to a clean
-             * state, for instance if the last decompression call returned an
-             * error.
-             */
-            size_t const ret = ZSTD_decompressStream(dctx, &output , &input);
-            CHECK_ZSTD(ret);
-            fwrite_orDie(buffOut, output.pos, fout);
-            lastRet = ret;
-        }
-    }
-
-    if (isEmpty) {
-        fprintf(stderr, "input is empty\n");
-        exit(1);
-    }
-
-    if (lastRet != 0) {
-        /* The last return value from ZSTD_decompressStream did not end on a
-         * frame, but we reached the end of the file! We assume this is an
-         * error, and the input was truncated.
-         */
-        fprintf(stderr, "EOF before end of stream: %zu\n", lastRet);
-        exit(1);
-    }
-
-    ZSTD_freeDCtx(dctx);
-    fclose_orDie(fin);
-    fclose_orDie(fout);
-    free(buffIn);
-    free(buffOut);
-}
-
-
-int main(int argc, const char** argv)
-{
-    const char* const exeName = argv[0];
-
-    if (argc!=2) {
-        fprintf(stderr, "wrong arguments\n");
-        fprintf(stderr, "usage:\n");
-        fprintf(stderr, "%s FILE\n", exeName);
-        return 1;
-    }
-
-    const char* const inFilename = argv[1];
-
-    decompressFile_orDie(inFilename);
-    return 0;
-}
diff --git a/examples/streaming_memory_usage.c b/examples/streaming_memory_usage.c
deleted file mode 100644
index 957acb61a391..000000000000
--- a/examples/streaming_memory_usage.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- * 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.
- */
-
-
-/*===   Tuning parameter   ===*/
-#ifndef MAX_TESTED_LEVEL
-#define MAX_TESTED_LEVEL 12
-#endif
-
-
-/*===   Dependencies   ===*/
-#include <stdio.h>     // printf
-#define ZSTD_STATIC_LINKING_ONLY
-#include <zstd.h>      // presumes zstd library is installed
-#include "common.h"    // Helper functions, CHECK(), and CHECK_ZSTD()
-
-
-/*===   functions   ===*/
-
-/*! readU32FromChar() :
-    @return : unsigned integer value read from input in `char` format
-    allows and interprets K, KB, KiB, M, MB and MiB suffix.
-    Will also modify `*stringPtr`, advancing it to position where it stopped reading.
-    Note : function result can overflow if digit string > MAX_UINT */
-static unsigned readU32FromChar(const char** stringPtr)
-{
-    unsigned result = 0;
-    while ((**stringPtr >='0') && (**stringPtr <='9'))
-        result *= 10, result += **stringPtr - '0', (*stringPtr)++ ;
-    if ((**stringPtr=='K') || (**stringPtr=='M')) {
-        result <<= 10;
-        if (**stringPtr=='M') result <<= 10;
-        (*stringPtr)++ ;
-        if (**stringPtr=='i') (*stringPtr)++;
-        if (**stringPtr=='B') (*stringPtr)++;
-    }
-    return result;
-}
-
-
-int main(int argc, char const *argv[]) {
-
-    printf("\n Zstandard (v%s) memory usage for streaming : \n\n", ZSTD_versionString());
-
-    unsigned wLog = 0;
-    if (argc > 1) {
-        const char* valStr = argv[1];
-        wLog = readU32FromChar(&valStr);
-    }
-
-    int compressionLevel;
-    for (compressionLevel = 1; compressionLevel <= MAX_TESTED_LEVEL; compressionLevel++) {
-#define INPUT_SIZE 5
-#define COMPRESSED_SIZE 128
-        char const dataToCompress[INPUT_SIZE] = "abcde";
-        char compressedData[COMPRESSED_SIZE];
-        char decompressedData[INPUT_SIZE];
-        /* the ZSTD_CCtx_params structure is a way to save parameters and use
-         * them across multiple contexts. We use them here so we can call the
-         * function ZSTD_estimateCStreamSize_usingCCtxParams().
-         */
-        ZSTD_CCtx_params* const cctxParams = ZSTD_createCCtxParams();
-        CHECK(cctxParams != NULL, "ZSTD_createCCtxParams() failed!");
-
-        /* Set the compression level. */
-        CHECK_ZSTD( ZSTD_CCtxParams_setParameter(cctxParams, ZSTD_c_compressionLevel, compressionLevel) );
-        /* Set the window log.
-         * The value 0 means use the default window log, which is equivalent to
-         * not setting it.
-         */
-        CHECK_ZSTD( ZSTD_CCtxParams_setParameter(cctxParams, ZSTD_c_windowLog, wLog) );
-
-        /* Force the compressor to allocate the maximum memory size for a given
-         * level by not providing the pledged source size, or calling
-         * ZSTD_compressStream2() with ZSTD_e_end.
-         */
-        ZSTD_CCtx* const cctx = ZSTD_createCCtx();
-        CHECK(cctx != NULL, "ZSTD_createCCtx() failed!");
-        CHECK_ZSTD( ZSTD_CCtx_setParametersUsingCCtxParams(cctx, cctxParams) );
-        size_t compressedSize;
-        {
-            ZSTD_inBuffer inBuff = { dataToCompress, sizeof(dataToCompress), 0 };
-            ZSTD_outBuffer outBuff = { compressedData, sizeof(compressedData), 0 };
-            CHECK_ZSTD( ZSTD_compressStream(cctx, &outBuff, &inBuff) );
-            size_t const remaining = ZSTD_endStream(cctx, &outBuff);
-            CHECK_ZSTD(remaining);
-            CHECK(remaining == 0, "Frame not flushed!");
-            compressedSize = outBuff.pos;
-        }
-
-        ZSTD_DCtx* const dctx = ZSTD_createDCtx();
-        CHECK(dctx != NULL, "ZSTD_createDCtx() failed!");
-        /* Set the maximum allowed window log.
-         * The value 0 means use the default window log, which is equivalent to
-         * not setting it.
-         */
-        CHECK_ZSTD( ZSTD_DCtx_setParameter(dctx, ZSTD_d_windowLogMax, wLog) );
-        /* forces decompressor to use maximum memory size, since the
-         * decompressed size is not stored in the frame header.
-         */
-        {   ZSTD_inBuffer inBuff = { compressedData, compressedSize, 0 };
-            ZSTD_outBuffer outBuff = { decompressedData, sizeof(decompressedData), 0 };
-            size_t const remaining = ZSTD_decompressStream(dctx, &outBuff, &inBuff);
-            CHECK_ZSTD(remaining);
-            CHECK(remaining == 0, "Frame not complete!");
-            CHECK(outBuff.pos == sizeof(dataToCompress), "Bad decompression!");
-        }
-
-        size_t const cstreamSize = ZSTD_sizeof_CStream(cctx);
-        size_t const cstreamEstimatedSize = ZSTD_estimateCStreamSize_usingCCtxParams(cctxParams);
-        size_t const dstreamSize = ZSTD_sizeof_DStream(dctx);
-        size_t const dstreamEstimatedSize = ZSTD_estimateDStreamSize_fromFrame(compressedData, compressedSize);
-
-        CHECK(cstreamSize <= cstreamEstimatedSize, "Compression mem (%u) > estimated (%u)",
-                (unsigned)cstreamSize, (unsigned)cstreamEstimatedSize);
-        CHECK(dstreamSize <= dstreamEstimatedSize, "Decompression mem (%u) > estimated (%u)",
-                (unsigned)dstreamSize, (unsigned)dstreamEstimatedSize);
-
-        printf("Level %2i : Compression Mem = %5u KB (estimated : %5u KB) ; Decompression Mem = %4u KB (estimated : %5u KB)\n",
-                compressionLevel,
-                (unsigned)(cstreamSize>>10), (unsigned)(cstreamEstimatedSize>>10),
-                (unsigned)(dstreamSize>>10), (unsigned)(dstreamEstimatedSize>>10));
-
-        ZSTD_freeDCtx(dctx);
-        ZSTD_freeCCtx(cctx);
-        ZSTD_freeCCtxParams(cctxParams);
-        if (wLog) break;  /* single test */
-    }
-    return 0;
-}