651 lines
21 KiB
C
651 lines
21 KiB
C
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/*
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util.h - utility functions
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Copyright (C) 2016-present, Przemyslaw Skibinski, Yann Collet
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef UTIL_H_MODULE
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#define UTIL_H_MODULE
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#if defined (__cplusplus)
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extern "C" {
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#endif
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/*-****************************************
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* Dependencies
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******************************************/
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#include "platform.h" /* PLATFORM_POSIX_VERSION */
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#include <stddef.h> /* size_t, ptrdiff_t */
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#include <stdlib.h> /* malloc */
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#include <string.h> /* strlen, strncpy */
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#include <stdio.h> /* fprintf, fileno */
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#include <assert.h>
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#include <sys/types.h> /* stat, utime */
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#include <sys/stat.h> /* stat */
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#if defined(_WIN32)
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# include <sys/utime.h> /* utime */
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# include <io.h> /* _chmod */
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#else
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# include <unistd.h> /* chown, stat */
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# if PLATFORM_POSIX_VERSION < 200809L
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# include <utime.h> /* utime */
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# else
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# include <fcntl.h> /* AT_FDCWD */
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# include <sys/stat.h> /* for utimensat */
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# endif
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#endif
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#include <time.h> /* time */
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#include <limits.h> /* INT_MAX */
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#include <errno.h>
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/*-**************************************************************
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* Basic Types
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*****************************************************************/
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#if !defined (__VMS) && (defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) )
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# include <stdint.h>
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typedef uint8_t BYTE;
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typedef uint16_t U16;
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typedef int16_t S16;
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typedef uint32_t U32;
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typedef int32_t S32;
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typedef uint64_t U64;
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typedef int64_t S64;
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#else
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typedef unsigned char BYTE;
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typedef unsigned short U16;
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typedef signed short S16;
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typedef unsigned int U32;
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typedef signed int S32;
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typedef unsigned long long U64;
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typedef signed long long S64;
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#endif
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/* ************************************************************
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* Avoid fseek()'s 2GiB barrier with MSVC, MacOS, *BSD, MinGW
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***************************************************************/
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#if defined(_MSC_VER) && (_MSC_VER >= 1400)
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# define UTIL_fseek _fseeki64
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#elif !defined(__64BIT__) && (PLATFORM_POSIX_VERSION >= 200112L) /* No point defining Large file for 64 bit */
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# define UTIL_fseek fseeko
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#elif defined(__MINGW32__) && defined(__MSVCRT__) && !defined(__STRICT_ANSI__) && !defined(__NO_MINGW_LFS)
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# define UTIL_fseek fseeko64
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#else
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# define UTIL_fseek fseek
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#endif
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/*-****************************************
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* Sleep functions: Windows - Posix - others
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******************************************/
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#if defined(_WIN32)
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# include <windows.h>
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# define SET_REALTIME_PRIORITY SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS)
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# define UTIL_sleep(s) Sleep(1000*s)
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# define UTIL_sleepMilli(milli) Sleep(milli)
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#elif PLATFORM_POSIX_VERSION >= 0 /* Unix-like operating system */
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# include <unistd.h>
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# include <sys/resource.h> /* setpriority */
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# include <time.h> /* clock_t, nanosleep, clock, CLOCKS_PER_SEC */
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# if defined(PRIO_PROCESS)
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# define SET_REALTIME_PRIORITY setpriority(PRIO_PROCESS, 0, -20)
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# else
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# define SET_REALTIME_PRIORITY /* disabled */
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# endif
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# define UTIL_sleep(s) sleep(s)
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# if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 199309L)) || (PLATFORM_POSIX_VERSION >= 200112L) /* nanosleep requires POSIX.1-2001 */
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# define UTIL_sleepMilli(milli) { struct timespec t; t.tv_sec=0; t.tv_nsec=milli*1000000ULL; nanosleep(&t, NULL); }
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# else
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# define UTIL_sleepMilli(milli) /* disabled */
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# endif
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#else
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# define SET_REALTIME_PRIORITY /* disabled */
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# define UTIL_sleep(s) /* disabled */
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# define UTIL_sleepMilli(milli) /* disabled */
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#endif
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/*-****************************************
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* stat() functions
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******************************************/
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#if defined(_MSC_VER)
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# define UTIL_TYPE_stat __stat64
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# define UTIL_stat _stat64
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# define UTIL_fstat _fstat64
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# define UTIL_STAT_MODE_ISREG(st_mode) ((st_mode) & S_IFREG)
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#elif defined(__MINGW32__) && defined (__MSVCRT__)
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# define UTIL_TYPE_stat _stati64
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# define UTIL_stat _stati64
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# define UTIL_fstat _fstati64
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# define UTIL_STAT_MODE_ISREG(st_mode) ((st_mode) & S_IFREG)
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#else
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# define UTIL_TYPE_stat stat
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# define UTIL_stat stat
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# define UTIL_fstat fstat
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# define UTIL_STAT_MODE_ISREG(st_mode) (S_ISREG(st_mode))
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#endif
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/*-****************************************
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* fileno() function
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******************************************/
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#if defined(_MSC_VER)
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# define UTIL_fileno _fileno
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#else
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# define UTIL_fileno fileno
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#endif
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/* *************************************
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* Constants
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***************************************/
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#define LIST_SIZE_INCREASE (8*1024)
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/*-****************************************
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* Compiler specifics
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******************************************/
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#if defined(__INTEL_COMPILER)
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# pragma warning(disable : 177) /* disable: message #177: function was declared but never referenced, useful with UTIL_STATIC */
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#endif
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#if defined(__GNUC__)
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# define UTIL_STATIC static __attribute__((unused))
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#elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
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# define UTIL_STATIC static inline
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#elif defined(_MSC_VER)
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# define UTIL_STATIC static __inline
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#else
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# define UTIL_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */
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#endif
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/*-****************************************
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* Time functions
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******************************************/
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#if defined(_WIN32) /* Windows */
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typedef LARGE_INTEGER UTIL_time_t;
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UTIL_STATIC UTIL_time_t UTIL_getTime(void) { UTIL_time_t x; QueryPerformanceCounter(&x); return x; }
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UTIL_STATIC U64 UTIL_getSpanTimeMicro(UTIL_time_t clockStart, UTIL_time_t clockEnd)
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{
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static LARGE_INTEGER ticksPerSecond;
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static int init = 0;
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if (!init) {
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if (!QueryPerformanceFrequency(&ticksPerSecond))
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fprintf(stderr, "ERROR: QueryPerformanceFrequency() failure\n");
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init = 1;
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}
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return 1000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart;
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}
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UTIL_STATIC U64 UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd)
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{
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static LARGE_INTEGER ticksPerSecond;
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static int init = 0;
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if (!init) {
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if (!QueryPerformanceFrequency(&ticksPerSecond))
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fprintf(stderr, "ERROR: QueryPerformanceFrequency() failure\n");
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init = 1;
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}
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return 1000000000ULL*(clockEnd.QuadPart - clockStart.QuadPart)/ticksPerSecond.QuadPart;
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}
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#elif defined(__APPLE__) && defined(__MACH__)
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#include <mach/mach_time.h>
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typedef U64 UTIL_time_t;
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UTIL_STATIC UTIL_time_t UTIL_getTime(void) { return mach_absolute_time(); }
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UTIL_STATIC U64 UTIL_getSpanTimeMicro(UTIL_time_t clockStart, UTIL_time_t clockEnd)
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{
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static mach_timebase_info_data_t rate;
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static int init = 0;
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if (!init) {
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mach_timebase_info(&rate);
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init = 1;
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}
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return (((clockEnd - clockStart) * (U64)rate.numer) / ((U64)rate.denom)) / 1000ULL;
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}
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UTIL_STATIC U64 UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd)
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{
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static mach_timebase_info_data_t rate;
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static int init = 0;
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if (!init) {
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mach_timebase_info(&rate);
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init = 1;
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}
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return ((clockEnd - clockStart) * (U64)rate.numer) / ((U64)rate.denom);
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}
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#elif (PLATFORM_POSIX_VERSION >= 200112L) && (defined __UCLIBC__ || (defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 17) || __GLIBC__ > 2) ) )
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#include <time.h>
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typedef struct timespec UTIL_time_t;
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UTIL_STATIC UTIL_time_t UTIL_getTime(void)
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{
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UTIL_time_t now;
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if (clock_gettime(CLOCK_MONOTONIC, &now))
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fprintf(stderr, "ERROR: Failed to get time\n"); /* we could also exit() */
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return now;
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}
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UTIL_STATIC UTIL_time_t UTIL_getSpanTime(UTIL_time_t begin, UTIL_time_t end)
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{
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UTIL_time_t diff;
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if (end.tv_nsec < begin.tv_nsec) {
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diff.tv_sec = (end.tv_sec - 1) - begin.tv_sec;
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diff.tv_nsec = (end.tv_nsec + 1000000000ULL) - begin.tv_nsec;
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} else {
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diff.tv_sec = end.tv_sec - begin.tv_sec;
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diff.tv_nsec = end.tv_nsec - begin.tv_nsec;
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}
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return diff;
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}
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UTIL_STATIC U64 UTIL_getSpanTimeMicro(UTIL_time_t begin, UTIL_time_t end)
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{
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UTIL_time_t const diff = UTIL_getSpanTime(begin, end);
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U64 micro = 0;
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micro += 1000000ULL * diff.tv_sec;
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micro += diff.tv_nsec / 1000ULL;
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return micro;
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}
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UTIL_STATIC U64 UTIL_getSpanTimeNano(UTIL_time_t begin, UTIL_time_t end)
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{
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UTIL_time_t const diff = UTIL_getSpanTime(begin, end);
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U64 nano = 0;
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nano += 1000000000ULL * diff.tv_sec;
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nano += diff.tv_nsec;
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return nano;
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}
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#else /* relies on standard C (note : clock_t measurements can be wrong when using multi-threading) */
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typedef clock_t UTIL_time_t;
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UTIL_STATIC UTIL_time_t UTIL_getTime(void) { return clock(); }
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UTIL_STATIC U64 UTIL_getSpanTimeMicro(UTIL_time_t clockStart, UTIL_time_t clockEnd) { return 1000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC; }
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UTIL_STATIC U64 UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd) { return 1000000000ULL * (clockEnd - clockStart) / CLOCKS_PER_SEC; }
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#endif
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/* returns time span in microseconds */
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UTIL_STATIC U64 UTIL_clockSpanMicro(UTIL_time_t clockStart)
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{
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UTIL_time_t const clockEnd = UTIL_getTime();
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return UTIL_getSpanTimeMicro(clockStart, clockEnd);
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}
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/* returns time span in nanoseconds */
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UTIL_STATIC U64 UTIL_clockSpanNano(UTIL_time_t clockStart)
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{
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UTIL_time_t const clockEnd = UTIL_getTime();
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return UTIL_getSpanTimeNano(clockStart, clockEnd);
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}
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UTIL_STATIC void UTIL_waitForNextTick(void)
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{
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UTIL_time_t const clockStart = UTIL_getTime();
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UTIL_time_t clockEnd;
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do {
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clockEnd = UTIL_getTime();
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} while (UTIL_getSpanTimeNano(clockStart, clockEnd) == 0);
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}
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/*-****************************************
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* File functions
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******************************************/
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#if defined(_MSC_VER)
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#define chmod _chmod
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typedef struct __stat64 stat_t;
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#else
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typedef struct stat stat_t;
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#endif
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UTIL_STATIC int UTIL_isRegFile(const char* infilename);
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UTIL_STATIC int UTIL_setFileStat(const char *filename, stat_t *statbuf)
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{
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int res = 0;
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if (!UTIL_isRegFile(filename))
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return -1;
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{
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#if defined(_WIN32) || (PLATFORM_POSIX_VERSION < 200809L)
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struct utimbuf timebuf;
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timebuf.actime = time(NULL);
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timebuf.modtime = statbuf->st_mtime;
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res += utime(filename, &timebuf); /* set access and modification times */
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#else
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struct timespec timebuf[2] = {};
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timebuf[0].tv_nsec = UTIME_NOW;
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timebuf[1].tv_sec = statbuf->st_mtime;
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res += utimensat(AT_FDCWD, filename, timebuf, 0); /* set access and modification times */
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#endif
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}
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#if !defined(_WIN32)
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res += chown(filename, statbuf->st_uid, statbuf->st_gid); /* Copy ownership */
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#endif
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res += chmod(filename, statbuf->st_mode & 07777); /* Copy file permissions */
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errno = 0;
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|
return -res; /* number of errors is returned */
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
UTIL_STATIC int UTIL_getFileStat(const char* infilename, stat_t *statbuf)
|
||
|
|
{
|
||
|
|
int r;
|
||
|
|
#if defined(_MSC_VER)
|
||
|
|
r = _stat64(infilename, statbuf);
|
||
|
|
if (r || !(statbuf->st_mode & S_IFREG)) return 0; /* No good... */
|
||
|
|
#else
|
||
|
|
r = stat(infilename, statbuf);
|
||
|
|
if (r || !S_ISREG(statbuf->st_mode)) return 0; /* No good... */
|
||
|
|
#endif
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
UTIL_STATIC int UTIL_isRegFile(const char* infilename)
|
||
|
|
{
|
||
|
|
stat_t statbuf;
|
||
|
|
return UTIL_getFileStat(infilename, &statbuf); /* Only need to know whether it is a regular file */
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
UTIL_STATIC 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
UTIL_STATIC U64 UTIL_getOpenFileSize(FILE* file)
|
||
|
|
{
|
||
|
|
int r;
|
||
|
|
int fd;
|
||
|
|
struct UTIL_TYPE_stat statbuf;
|
||
|
|
|
||
|
|
fd = UTIL_fileno(file);
|
||
|
|
if (fd < 0) {
|
||
|
|
perror("fileno");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
r = UTIL_fstat(fd, &statbuf);
|
||
|
|
if (r || !UTIL_STAT_MODE_ISREG(statbuf.st_mode)) return 0; /* No good... */
|
||
|
|
return (U64)statbuf.st_size;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
UTIL_STATIC U64 UTIL_getFileSize(const char* infilename)
|
||
|
|
{
|
||
|
|
int r;
|
||
|
|
struct UTIL_TYPE_stat statbuf;
|
||
|
|
|
||
|
|
r = UTIL_stat(infilename, &statbuf);
|
||
|
|
if (r || !UTIL_STAT_MODE_ISREG(statbuf.st_mode)) return 0; /* No good... */
|
||
|
|
return (U64)statbuf.st_size;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
UTIL_STATIC U64 UTIL_getTotalFileSize(const char** fileNamesTable, unsigned nbFiles)
|
||
|
|
{
|
||
|
|
U64 total = 0;
|
||
|
|
unsigned n;
|
||
|
|
for (n=0; n<nbFiles; n++)
|
||
|
|
total += UTIL_getFileSize(fileNamesTable[n]);
|
||
|
|
return total;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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* const newptr = realloc(ptr, size);
|
||
|
|
if (newptr) return newptr;
|
||
|
|
free(ptr);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
# define UTIL_HAS_CREATEFILELIST
|
||
|
|
|
||
|
|
UTIL_STATIC int UTIL_prepareFileList(const char* dirName, char** bufStart, size_t* pos, char** bufEnd)
|
||
|
|
{
|
||
|
|
char* path;
|
||
|
|
size_t dirLength, nbFiles = 0;
|
||
|
|
WIN32_FIND_DATAA cFile;
|
||
|
|
HANDLE hFile;
|
||
|
|
|
||
|
|
dirLength = strlen(dirName);
|
||
|
|
path = (char*) malloc(dirLength + 3);
|
||
|
|
if (!path) return 0;
|
||
|
|
|
||
|
|
memcpy(path, dirName, dirLength);
|
||
|
|
path[dirLength] = '\\';
|
||
|
|
path[dirLength+1] = '*';
|
||
|
|
path[dirLength+2] = 0;
|
||
|
|
|
||
|
|
hFile=FindFirstFileA(path, &cFile);
|
||
|
|
if (hFile == INVALID_HANDLE_VALUE) {
|
||
|
|
fprintf(stderr, "Cannot open directory '%s'\n", dirName);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
free(path);
|
||
|
|
|
||
|
|
do {
|
||
|
|
size_t pathLength;
|
||
|
|
int const fnameLength = (int)strlen(cFile.cFileName);
|
||
|
|
path = (char*) malloc(dirLength + fnameLength + 2);
|
||
|
|
if (!path) { FindClose(hFile); return 0; }
|
||
|
|
memcpy(path, dirName, dirLength);
|
||
|
|
path[dirLength] = '\\';
|
||
|
|
memcpy(path+dirLength+1, cFile.cFileName, fnameLength);
|
||
|
|
pathLength = dirLength+1+fnameLength;
|
||
|
|
path[pathLength] = 0;
|
||
|
|
if (cFile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
|
||
|
|
if (strcmp (cFile.cFileName, "..") == 0 ||
|
||
|
|
strcmp (cFile.cFileName, ".") == 0) continue;
|
||
|
|
|
||
|
|
nbFiles += UTIL_prepareFileList(path, bufStart, pos, bufEnd); /* Recursively call "UTIL_prepareFileList" with the new path. */
|
||
|
|
if (*bufStart == NULL) { free(path); FindClose(hFile); return 0; }
|
||
|
|
}
|
||
|
|
else if ((cFile.dwFileAttributes & FILE_ATTRIBUTE_NORMAL) || (cFile.dwFileAttributes & FILE_ATTRIBUTE_ARCHIVE) || (cFile.dwFileAttributes & FILE_ATTRIBUTE_COMPRESSED)) {
|
||
|
|
if (*bufStart + *pos + pathLength >= *bufEnd) {
|
||
|
|
ptrdiff_t newListSize = (*bufEnd - *bufStart) + LIST_SIZE_INCREASE;
|
||
|
|
*bufStart = (char*)UTIL_realloc(*bufStart, newListSize);
|
||
|
|
*bufEnd = *bufStart + newListSize;
|
||
|
|
if (*bufStart == NULL) { free(path); FindClose(hFile); return 0; }
|
||
|
|
}
|
||
|
|
if (*bufStart + *pos + pathLength < *bufEnd) {
|
||
|
|
strncpy(*bufStart + *pos, path, *bufEnd - (*bufStart + *pos));
|
||
|
|
*pos += pathLength + 1;
|
||
|
|
nbFiles++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
free(path);
|
||
|
|
} while (FindNextFileA(hFile, &cFile));
|
||
|
|
|
||
|
|
FindClose(hFile);
|
||
|
|
assert(nbFiles < INT_MAX);
|
||
|
|
return (int)nbFiles;
|
||
|
|
}
|
||
|
|
|
||
|
|
#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 */
|
||
|
|
|
||
|
|
UTIL_STATIC int UTIL_prepareFileList(const char* dirName, char** bufStart, size_t* pos, char** bufEnd)
|
||
|
|
{
|
||
|
|
DIR* dir;
|
||
|
|
struct dirent * entry;
|
||
|
|
int dirLength, nbFiles = 0;
|
||
|
|
|
||
|
|
if (!(dir = opendir(dirName))) {
|
||
|
|
fprintf(stderr, "Cannot open directory '%s': %s\n", dirName, strerror(errno));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
dirLength = (int)strlen(dirName);
|
||
|
|
errno = 0;
|
||
|
|
while ((entry = readdir(dir)) != NULL) {
|
||
|
|
char* path;
|
||
|
|
int fnameLength, pathLength;
|
||
|
|
if (strcmp (entry->d_name, "..") == 0 ||
|
||
|
|
strcmp (entry->d_name, ".") == 0) continue;
|
||
|
|
fnameLength = (int)strlen(entry->d_name);
|
||
|
|
path = (char*) malloc(dirLength + fnameLength + 2);
|
||
|
|
if (!path) { closedir(dir); return 0; }
|
||
|
|
memcpy(path, dirName, dirLength);
|
||
|
|
path[dirLength] = '/';
|
||
|
|
memcpy(path+dirLength+1, entry->d_name, fnameLength);
|
||
|
|
pathLength = dirLength+1+fnameLength;
|
||
|
|
path[pathLength] = 0;
|
||
|
|
|
||
|
|
if (UTIL_isDirectory(path)) {
|
||
|
|
nbFiles += UTIL_prepareFileList(path, bufStart, pos, bufEnd); /* Recursively call "UTIL_prepareFileList" with the new path. */
|
||
|
|
if (*bufStart == NULL) { free(path); closedir(dir); return 0; }
|
||
|
|
} else {
|
||
|
|
if (*bufStart + *pos + pathLength >= *bufEnd) {
|
||
|
|
ptrdiff_t newListSize = (*bufEnd - *bufStart) + LIST_SIZE_INCREASE;
|
||
|
|
*bufStart = (char*)UTIL_realloc(*bufStart, newListSize);
|
||
|
|
*bufEnd = *bufStart + newListSize;
|
||
|
|
if (*bufStart == NULL) { free(path); closedir(dir); return 0; }
|
||
|
|
}
|
||
|
|
if (*bufStart + *pos + pathLength < *bufEnd) {
|
||
|
|
strncpy(*bufStart + *pos, path, *bufEnd - (*bufStart + *pos));
|
||
|
|
*pos += pathLength + 1;
|
||
|
|
nbFiles++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
free(path);
|
||
|
|
errno = 0; /* clear errno after UTIL_isDirectory, UTIL_prepareFileList */
|
||
|
|
}
|
||
|
|
|
||
|
|
if (errno != 0) {
|
||
|
|
fprintf(stderr, "readdir(%s) error: %s\n", dirName, strerror(errno));
|
||
|
|
free(*bufStart);
|
||
|
|
*bufStart = NULL;
|
||
|
|
}
|
||
|
|
closedir(dir);
|
||
|
|
return nbFiles;
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
UTIL_STATIC int UTIL_prepareFileList(const char* dirName, char** bufStart, size_t* pos, char** bufEnd)
|
||
|
|
{
|
||
|
|
(void)bufStart; (void)bufEnd; (void)pos;
|
||
|
|
fprintf(stderr, "Directory %s ignored (compiled without _WIN32 or _POSIX_C_SOURCE)\n", dirName);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#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.
|
||
|
|
*/
|
||
|
|
UTIL_STATIC const char**
|
||
|
|
UTIL_createFileList(const char** inputNames, unsigned inputNamesNb,
|
||
|
|
char** allocatedBuffer, unsigned* allocatedNamesNb)
|
||
|
|
{
|
||
|
|
size_t pos;
|
||
|
|
unsigned i, nbFiles;
|
||
|
|
char* buf = (char*)malloc(LIST_SIZE_INCREASE);
|
||
|
|
size_t bufSize = LIST_SIZE_INCREASE;
|
||
|
|
const char** fileTable;
|
||
|
|
|
||
|
|
if (!buf) return NULL;
|
||
|
|
|
||
|
|
for (i=0, pos=0, nbFiles=0; i<inputNamesNb; i++) {
|
||
|
|
if (!UTIL_isDirectory(inputNames[i])) {
|
||
|
|
size_t const len = strlen(inputNames[i]) + 1; /* include nul char */
|
||
|
|
if (pos + len >= bufSize) {
|
||
|
|
while (pos + len >= bufSize) bufSize += LIST_SIZE_INCREASE;
|
||
|
|
buf = (char*)UTIL_realloc(buf, bufSize);
|
||
|
|
if (!buf) return NULL;
|
||
|
|
}
|
||
|
|
assert(pos + len < bufSize);
|
||
|
|
memcpy(buf + pos, inputNames[i], len);
|
||
|
|
pos += len;
|
||
|
|
nbFiles++;
|
||
|
|
} else {
|
||
|
|
char* bufend = buf + bufSize;
|
||
|
|
nbFiles += (unsigned)UTIL_prepareFileList(inputNames[i], &buf, &pos, &bufend);
|
||
|
|
if (buf == NULL) return NULL;
|
||
|
|
assert(bufend > buf);
|
||
|
|
bufSize = (size_t)(bufend - buf);
|
||
|
|
} }
|
||
|
|
|
||
|
|
if (nbFiles == 0) { free(buf); return NULL; }
|
||
|
|
|
||
|
|
fileTable = (const char**)malloc(((size_t)nbFiles+1) * sizeof(const char*));
|
||
|
|
if (!fileTable) { free(buf); return NULL; }
|
||
|
|
|
||
|
|
for (i=0, pos=0; i<nbFiles; i++) {
|
||
|
|
fileTable[i] = buf + pos;
|
||
|
|
pos += strlen(fileTable[i]) + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pos > bufSize) {
|
||
|
|
free(buf);
|
||
|
|
free((void*)fileTable);
|
||
|
|
return NULL;
|
||
|
|
} /* can this happen ? */
|
||
|
|
|
||
|
|
*allocatedBuffer = buf;
|
||
|
|
*allocatedNamesNb = nbFiles;
|
||
|
|
|
||
|
|
return fileTable;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
UTIL_STATIC void
|
||
|
|
UTIL_freeFileList(const char** filenameTable, char* allocatedBuffer)
|
||
|
|
{
|
||
|
|
if (allocatedBuffer) free(allocatedBuffer);
|
||
|
|
if (filenameTable) free((void*)filenameTable);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#if defined (__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* UTIL_H_MODULE */
|