1 files changed, 184 insertions, 0 deletions
diff --git a/src/third_party/zstandard-1.4.3/zstd/programs/util.h b/src/third_party/zstandard-1.4.3/zstd/programs/util.h
new file mode 100644
index 00000000000..d6e5bb550ec
--- /dev/null
+++ b/src/third_party/zstandard-1.4.3/zstd/programs/util.h
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2016-present, Przemyslaw Skibinski, 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.
+ */
+
+#ifndef UTIL_H_MODULE
+#define UTIL_H_MODULE
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+
+/*-****************************************
+*  Dependencies
+******************************************/
+#include "platform.h"     /* PLATFORM_POSIX_VERSION, ZSTD_NANOSLEEP_SUPPORT, ZSTD_SETPRIORITY_SUPPORT */
+#include <stdlib.h>       /* malloc, realloc, free */
+#include <stddef.h>       /* size_t, ptrdiff_t */
+#include <stdio.h>        /* fprintf */
+#include <sys/types.h>    /* stat, utime */
+#include <sys/stat.h>     /* stat, chmod */
+#if defined(_MSC_VER)
+#  include <sys/utime.h>  /* utime */
+#  include <io.h>         /* _chmod */
+#else
+#  include <unistd.h>     /* chown, stat */
+#  include <utime.h>      /* utime */
+#endif
+#include <time.h>         /* clock_t, clock, CLOCKS_PER_SEC, nanosleep */
+#include "mem.h"          /* U32, U64 */
+
+
+/*-************************************************************
+* Avoid fseek()'s 2GiB barrier with MSVC, macOS, *BSD, MinGW
+***************************************************************/
+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
+#   define UTIL_fseek _fseeki64
+#elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */
+#  define UTIL_fseek fseeko
+#elif defined(__MINGW32__) && defined(__MSVCRT__) && !defined(__STRICT_ANSI__) && !defined(__NO_MINGW_LFS)
+#   define UTIL_fseek fseeko64
+#else
+#   define UTIL_fseek fseek
+#endif
+
+
+/*-*************************************************
+*  Sleep & priority functions: Windows - Posix - others
+***************************************************/
+#if defined(_WIN32)
+#  include <windows.h>
+#  define SET_REALTIME_PRIORITY SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS)
+#  define UTIL_sleep(s) Sleep(1000*s)
+#  define UTIL_sleepMilli(milli) Sleep(milli)
+
+#elif PLATFORM_POSIX_VERSION > 0 /* Unix-like operating system */
+#  include <unistd.h>   /* sleep */
+#  define UTIL_sleep(s) sleep(s)
+#  if ZSTD_NANOSLEEP_SUPPORT   /* necessarily defined in platform.h */
+#      define UTIL_sleepMilli(milli) { struct timespec t; t.tv_sec=0; t.tv_nsec=milli*1000000ULL; nanosleep(&t, NULL); }
+#  else
+#      define UTIL_sleepMilli(milli) /* disabled */
+#  endif
+#  if ZSTD_SETPRIORITY_SUPPORT
+#    include <sys/resource.h> /* setpriority */
+#    define SET_REALTIME_PRIORITY setpriority(PRIO_PROCESS, 0, -20)
+#  else
+#    define SET_REALTIME_PRIORITY /* disabled */
+#  endif
+
+#else  /* unknown non-unix operating systen */
+#  define UTIL_sleep(s)          /* disabled */
+#  define UTIL_sleepMilli(milli) /* disabled */
+#  define SET_REALTIME_PRIORITY  /* disabled */
+#endif
+
+
+/*-*************************************
+*  Constants
+***************************************/
+#define LIST_SIZE_INCREASE   (8*1024)
+
+
+/*-****************************************
+*  Compiler specifics
+******************************************/
+#if defined(__INTEL_COMPILER)
+#  pragma warning(disable : 177)    /* disable: message #177: function was declared but never referenced, useful with UTIL_STATIC */
+#endif
+#if defined(__GNUC__)
+#  define UTIL_STATIC static __attribute__((unused))
+#elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
+#  define UTIL_STATIC static inline
+#elif defined(_MSC_VER)
+#  define UTIL_STATIC static __inline
+#else
+#  define UTIL_STATIC static  /* this version may generate warnings for unused static functions; disable the relevant warning */
+#endif
+
+
+/*-****************************************
+*  Console log
+******************************************/
+extern int g_utilDisplayLevel;
+#define UTIL_DISPLAY(...)         fprintf(stderr, __VA_ARGS__)
+#define UTIL_DISPLAYLEVEL(l, ...) { if (g_utilDisplayLevel>=l) { UTIL_DISPLAY(__VA_ARGS__); } }
+
+
+/*-****************************************
+*  File functions
+******************************************/
+#if defined(_MSC_VER)
+    #define chmod _chmod
+    typedef struct __stat64 stat_t;
+#else
+    typedef struct stat stat_t;
+#endif
+
+
+int UTIL_fileExist(const char* filename);
+int UTIL_isRegularFile(const char* infilename);
+int UTIL_setFileStat(const char* filename, stat_t* statbuf);
+U32 UTIL_isDirectory(const char* infilename);
+int UTIL_getFileStat(const char* infilename, stat_t* statbuf);
+int UTIL_isSameFile(const char* file1, const char* file2);
+
+U32 UTIL_isLink(const char* infilename);
+#define UTIL_FILESIZE_UNKNOWN  ((U64)(-1))
+U64 UTIL_getFileSize(const char* infilename);
+
+U64 UTIL_getTotalFileSize(const char* const * const fileNamesTable, unsigned nbFiles);
+
+/*
+ * A modified version of realloc().
+ * If UTIL_realloc() fails the original block is freed.
+*/
+UTIL_STATIC void* UTIL_realloc(void *ptr, size_t size)
+{
+    void *newptr = realloc(ptr, size);
+    if (newptr) return newptr;
+    free(ptr);
+    return NULL;
+}
+
+int UTIL_prepareFileList(const char* dirName, char** bufStart, size_t* pos, char** bufEnd, int followLinks);
+#ifdef _WIN32
+#  define UTIL_HAS_CREATEFILELIST
+#elif defined(__linux__) || (PLATFORM_POSIX_VERSION >= 200112L)  /* opendir, readdir require POSIX.1-2001 */
+#  define UTIL_HAS_CREATEFILELIST
+#  include <dirent.h>       /* opendir, readdir */
+#  include <string.h>       /* strerror, memcpy */
+#else
+#endif /* #ifdef _WIN32 */
+
+/*
+ * UTIL_createFileList - takes a list of files and directories (params: inputNames, inputNamesNb), scans directories,
+ *                       and returns a new list of files (params: return value, allocatedBuffer, allocatedNamesNb).
+ * After finishing usage of the list the structures should be freed with UTIL_freeFileList(params: return value, allocatedBuffer)
+ * In case of error UTIL_createFileList returns NULL and UTIL_freeFileList should not be called.
+ */
+const char**
+UTIL_createFileList(const char **inputNames, unsigned inputNamesNb,
+                    char** allocatedBuffer, unsigned* allocatedNamesNb,
+                    int followLinks);
+
+UTIL_STATIC void UTIL_freeFileList(const char** filenameTable, char* allocatedBuffer)
+{
+    if (allocatedBuffer) free(allocatedBuffer);
+    if (filenameTable) free((void*)filenameTable);
+}
+
+int UTIL_countPhysicalCores(void);
+
+#if defined (__cplusplus)
+}
+#endif
+
+#endif /* UTIL_H_MODULE */