2 * Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
5 * This source code is licensed under both the BSD-style license (found in the
6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
7 * in the COPYING file in the root directory of this source tree).
8 * You may select, at your option, one of the above-listed licenses.
14 #if defined (__cplusplus)
19 /*-****************************************
21 ******************************************/
22 #include "platform.h" /* PLATFORM_POSIX_VERSION, ZSTD_NANOSLEEP_SUPPORT, ZSTD_SETPRIORITY_SUPPORT */
23 #include <stdlib.h> /* malloc, realloc, free */
24 #include <stddef.h> /* size_t, ptrdiff_t */
25 #include <stdio.h> /* fprintf */
26 #include <sys/types.h> /* stat, utime */
27 #include <sys/stat.h> /* stat, chmod */
29 # include <sys/utime.h> /* utime */
30 # include <io.h> /* _chmod */
32 # include <unistd.h> /* chown, stat */
33 # include <utime.h> /* utime */
35 #include <time.h> /* clock_t, clock, CLOCKS_PER_SEC, nanosleep */
36 #include "mem.h" /* U32, U64 */
39 /*-************************************************************
40 * Avoid fseek()'s 2GiB barrier with MSVC, macOS, *BSD, MinGW
41 ***************************************************************/
42 #if defined(_MSC_VER) && (_MSC_VER >= 1400)
43 # define UTIL_fseek _fseeki64
44 #elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */
45 # define UTIL_fseek fseeko
46 #elif defined(__MINGW32__) && defined(__MSVCRT__) && !defined(__STRICT_ANSI__) && !defined(__NO_MINGW_LFS)
47 # define UTIL_fseek fseeko64
49 # define UTIL_fseek fseek
53 /*-*************************************************
54 * Sleep & priority functions: Windows - Posix - others
55 ***************************************************/
58 # define SET_REALTIME_PRIORITY SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS)
59 # define UTIL_sleep(s) Sleep(1000*s)
60 # define UTIL_sleepMilli(milli) Sleep(milli)
62 #elif PLATFORM_POSIX_VERSION > 0 /* Unix-like operating system */
63 # include <unistd.h> /* sleep */
64 # define UTIL_sleep(s) sleep(s)
65 # if ZSTD_NANOSLEEP_SUPPORT /* necessarily defined in platform.h */
66 # define UTIL_sleepMilli(milli) { struct timespec t; t.tv_sec=0; t.tv_nsec=milli*1000000ULL; nanosleep(&t, NULL); }
68 # define UTIL_sleepMilli(milli) /* disabled */
70 # if ZSTD_SETPRIORITY_SUPPORT
71 # include <sys/resource.h> /* setpriority */
72 # define SET_REALTIME_PRIORITY setpriority(PRIO_PROCESS, 0, -20)
74 # define SET_REALTIME_PRIORITY /* disabled */
77 #else /* unknown non-unix operating systen */
78 # define UTIL_sleep(s) /* disabled */
79 # define UTIL_sleepMilli(milli) /* disabled */
80 # define SET_REALTIME_PRIORITY /* disabled */
84 /*-*************************************
86 ***************************************/
87 #define LIST_SIZE_INCREASE (8*1024)
90 /*-****************************************
92 ******************************************/
93 #if defined(__INTEL_COMPILER)
94 # pragma warning(disable : 177) /* disable: message #177: function was declared but never referenced, useful with UTIL_STATIC */
97 # define UTIL_STATIC static __attribute__((unused))
98 #elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
99 # define UTIL_STATIC static inline
100 #elif defined(_MSC_VER)
101 # define UTIL_STATIC static __inline
103 # define UTIL_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */
107 /*-****************************************
109 ******************************************/
110 extern int g_utilDisplayLevel;
111 #define UTIL_DISPLAY(...) fprintf(stderr, __VA_ARGS__)
112 #define UTIL_DISPLAYLEVEL(l, ...) { if (g_utilDisplayLevel>=l) { UTIL_DISPLAY(__VA_ARGS__); } }
115 /*-****************************************
117 ******************************************/
118 #if defined(_MSC_VER)
120 typedef struct __stat64 stat_t;
122 typedef struct stat stat_t;
126 int UTIL_fileExist(const char* filename);
127 int UTIL_isRegularFile(const char* infilename);
128 int UTIL_setFileStat(const char* filename, stat_t* statbuf);
129 U32 UTIL_isDirectory(const char* infilename);
130 int UTIL_getFileStat(const char* infilename, stat_t* statbuf);
131 int UTIL_isSameFile(const char* file1, const char* file2);
133 U32 UTIL_isLink(const char* infilename);
134 #define UTIL_FILESIZE_UNKNOWN ((U64)(-1))
135 U64 UTIL_getFileSize(const char* infilename);
137 U64 UTIL_getTotalFileSize(const char* const * const fileNamesTable, unsigned nbFiles);
140 * A modified version of realloc().
141 * If UTIL_realloc() fails the original block is freed.
143 UTIL_STATIC void* UTIL_realloc(void *ptr, size_t size)
145 void *newptr = realloc(ptr, size);
146 if (newptr) return newptr;
151 int UTIL_prepareFileList(const char* dirName, char** bufStart, size_t* pos, char** bufEnd, int followLinks);
153 # define UTIL_HAS_CREATEFILELIST
154 #elif defined(__linux__) || (PLATFORM_POSIX_VERSION >= 200112L) /* opendir, readdir require POSIX.1-2001 */
155 # define UTIL_HAS_CREATEFILELIST
156 # include <dirent.h> /* opendir, readdir */
157 # include <string.h> /* strerror, memcpy */
159 #endif /* #ifdef _WIN32 */
162 * UTIL_createFileList - takes a list of files and directories (params: inputNames, inputNamesNb), scans directories,
163 * and returns a new list of files (params: return value, allocatedBuffer, allocatedNamesNb).
164 * After finishing usage of the list the structures should be freed with UTIL_freeFileList(params: return value, allocatedBuffer)
165 * In case of error UTIL_createFileList returns NULL and UTIL_freeFileList should not be called.
168 UTIL_createFileList(const char **inputNames, unsigned inputNamesNb,
169 char** allocatedBuffer, unsigned* allocatedNamesNb,
172 UTIL_STATIC void UTIL_freeFileList(const char** filenameTable, char* allocatedBuffer)
174 if (allocatedBuffer) free(allocatedBuffer);
175 if (filenameTable) free((void*)filenameTable);
178 int UTIL_countPhysicalCores(void);
180 #if defined (__cplusplus)
184 #endif /* UTIL_H_MODULE */