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Moving code to util.c

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This commit is contained in:
Rohit Jain
2018-10-11 12:52:19 -07:00
parent 7ee135bd8e
commit f881ee8c48
4 changed files with 130 additions and 105 deletions
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programs/util.c Normal file
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/*
* 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.
*/
#if defined (__cplusplus)
extern "C" {
#endif
/*-****************************************
* Dependencies
******************************************/
#include "util.h"
U32 UTIL_isDirectory(const char* infilename)
{
int r;
stat_t statbuf;
#if defined(_MSC_VER)
r = _stat64(infilename, &statbuf);
if (!r && (statbuf.st_mode & _S_IFDIR)) return 1;
#else
r = stat(infilename, &statbuf);
if (!r && S_ISDIR(statbuf.st_mode)) return 1;
#endif
return 0;
}
U32 UTIL_isLink(const char* infilename)
{
/* macro guards, as defined in : https://linux.die.net/man/2/lstat */
#ifndef __STRICT_ANSI__
#if defined(_BSD_SOURCE) \
|| (defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500)) \
|| (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) \
|| (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)) \
|| (defined(__APPLE__) && defined(__MACH__))
int r;
stat_t statbuf;
r = lstat(infilename, &statbuf);
if (!r && S_ISLNK(statbuf.st_mode)) return 1;
#endif
#endif
(void)infilename;
return 0;
}
U64 UTIL_getFileSize(const char* infilename)
{
if (!UTIL_isRegularFile(infilename)) return UTIL_FILESIZE_UNKNOWN;
{ int r;
#if defined(_MSC_VER)
struct __stat64 statbuf;
r = _stat64(infilename, &statbuf);
if (r || !(statbuf.st_mode & S_IFREG)) return UTIL_FILESIZE_UNKNOWN;
#elif defined(__MINGW32__) && defined (__MSVCRT__)
struct _stati64 statbuf;
r = _stati64(infilename, &statbuf);
if (r || !(statbuf.st_mode & S_IFREG)) return UTIL_FILESIZE_UNKNOWN;
#else
struct stat statbuf;
r = stat(infilename, &statbuf);
if (r || !S_ISREG(statbuf.st_mode)) return UTIL_FILESIZE_UNKNOWN;
#endif
return (U64)statbuf.st_size;
}
}
U64 UTIL_getTotalFileSize(const char* const * const fileNamesTable, unsigned nbFiles)
{
U64 total = 0;
int error = 0;
unsigned n;
for (n=0; n<nbFiles; n++) {
U64 const size = UTIL_getFileSize(fileNamesTable[n]);
error |= (size == UTIL_FILESIZE_UNKNOWN);
total += size;
}
return error ? UTIL_FILESIZE_UNKNOWN : total;
}
#if defined (__cplusplus)
}
#endif