| /* |
| * 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 */ |