- LZ4 source repository : https://github.com/lz4/lz4
- LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
*/
+
#ifndef UTIL_H_MODULE
#define UTIL_H_MODULE
extern "C" {
#endif
-/* **************************************
-* Compiler Options
-****************************************/
-#if defined(__INTEL_COMPILER)
-# pragma warning(disable : 177) /* disable: message #177: function was declared but never referenced */
-#endif
-#if defined(_MSC_VER)
-# define _CRT_SECURE_NO_WARNINGS /* Disable some Visual warning messages for fopen, strncpy */
-# define _CRT_SECURE_NO_DEPRECATE /* VS2005 */
-# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
-#if _MSC_VER <= 1800 /* (1800 = Visual Studio 2013) */
- #define snprintf sprintf_s /* snprintf unsupported by Visual <= 2013 */
-#endif
-#endif
-
-
-/* Unix Large Files support (>4GB) */
-#if !defined(__LP64__) /* No point defining Large file for 64 bit */
-# define _FILE_OFFSET_BITS 64 /* turn off_t into a 64-bit type for ftello, fseeko */
-# if defined(__sun__) && !defined(_LARGEFILE_SOURCE) /* Sun Solaris 32-bits requires specific definitions */
-# define _LARGEFILE_SOURCE /* fseeko, ftello */
-# elif !defined(_LARGEFILE64_SOURCE)
-# define _LARGEFILE64_SOURCE /* off64_t, fseeko64, ftello64 */
-# endif
-#endif
-
/*-****************************************
* Dependencies
******************************************/
-#include <stdlib.h> /* features.h with _POSIX_C_SOURCE, malloc */
+#include "platform.h" /* Compiler options, PLATFORM_POSIX_VERSION */
+#include <stdlib.h> /* malloc */
#include <stdio.h> /* fprintf */
-#include <string.h> /* strerr, strlen, memcpy */
-#include <stddef.h> /* ptrdiff_t */
#include <sys/types.h> /* stat, utime */
#include <sys/stat.h> /* stat */
#if defined(_MSC_VER)
- #include <sys/utime.h> /* utime */
- #include <io.h> /* _chmod */
+# include <sys/utime.h> /* utime */
+# include <io.h> /* _chmod */
#else
- #include <unistd.h> /* chown, stat */
- #include <utime.h> /* utime */
+# include <unistd.h> /* chown, stat */
+# include <utime.h> /* utime */
#endif
#include <time.h> /* time */
#include <errno.h>
-/* *************************************
-* Constants
-***************************************/
-#define LIST_SIZE_INCREASE (8*1024)
+/*-************************************
+* OS-specific Includes
+**************************************/
+#if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 1)) || (PLATFORM_POSIX_VERSION >= 200112L) || defined(__DJGPP__) /* https://sourceforge.net/p/predef/wiki/OperatingSystems/ */
+# include <unistd.h> /* isatty */
+# define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
+#elif defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
+# include <io.h> /* _isatty */
+# define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
+#else
+# define IS_CONSOLE(stdStream) 0
+#endif
-/*-****************************************
-* Compiler specifics
-******************************************/
-#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
+/******************************
+* OS-specific Includes
+******************************/
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32)
+# include <fcntl.h> /* _O_BINARY */
+# include <io.h> /* _setmode, _fileno, _get_osfhandle */
+# if !defined(__DJGPP__)
+# define SET_BINARY_MODE(file) { int unused=_setmode(_fileno(file), _O_BINARY); (void)unused; }
+# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */
+# include <winioctl.h> /* FSCTL_SET_SPARSE */
+# define SET_SPARSE_FILE_MODE(file) { DWORD dw; DeviceIoControl((HANDLE) _get_osfhandle(_fileno(file)), FSCTL_SET_SPARSE, 0, 0, 0, 0, &dw, 0); }
+# if defined(_MSC_VER) && (_MSC_VER >= 1400) /* Avoid MSVC fseek()'s 2GiB barrier */
+# define fseek _fseeki64
+# endif
+# else
+# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+# define SET_SPARSE_FILE_MODE(file)
+# endif
#else
-# define UTIL_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */
+# if (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) || (defined(__APPLE__) && defined(__MACH__))
+# define fseek fseeko /* fseeko() added in FreeBSD 3.2 */
+# endif
+# define SET_BINARY_MODE(file)
+# define SET_SPARSE_FILE_MODE(file)
#endif
# define SET_HIGH_PRIORITY SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS)
# define UTIL_sleep(s) Sleep(1000*s)
# define UTIL_sleepMilli(milli) Sleep(milli)
-#elif (defined(__unix__) || defined(__unix) || defined(__VMS) || defined(__midipix__) || (defined(__APPLE__) && defined(__MACH__)))
+#elif PLATFORM_POSIX_VERSION >= 0 /* Unix-like operating system */
# include <unistd.h>
# include <sys/resource.h> /* setpriority */
# include <time.h> /* clock_t, nanosleep, clock, CLOCKS_PER_SEC */
# define SET_HIGH_PRIORITY /* disabled */
# endif
# define UTIL_sleep(s) sleep(s)
-# if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 199309L)
+# if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 199309L)) || (PLATFORM_POSIX_VERSION >= 200112L) /* nanosleep requires POSIX.1-2001 */
# 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
+/* *************************************
+* Constants
+***************************************/
+#define LIST_SIZE_INCREASE (8*1024)
+
+
/*-**************************************************************
* Basic Types
*****************************************************************/
/*-****************************************
+* Compiler specifics
+******************************************/
+#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
+
+
+/*-****************************************
* Time functions
******************************************/
#if !defined(_WIN32)
return nbFiles;
}
-#elif (defined(__APPLE__) && defined(__MACH__)) || \
- ((defined(__unix__) || defined(__unix) || defined(__midipix__)) && defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)) /* snprintf, opendir */
+#elif defined(__linux__) || (PLATFORM_POSIX_VERSION >= 200112L) /* opendir, readdir require POSIX.1-2001 */
# define UTIL_HAS_CREATEFILELIST
# include <dirent.h> /* opendir, readdir */
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 (lz4 compiled without _WIN32 or _POSIX_C_SOURCE)\n", dirName);
+ fprintf(stderr, "Directory %s ignored (compiled without _WIN32 or _POSIX_C_SOURCE)\n", dirName);
return 0;
}
{
size_t pos;
unsigned i, nbFiles;
- char *bufend, *buf;
+ char* buf = (char*)malloc(LIST_SIZE_INCREASE);
+ char* bufend = buf + LIST_SIZE_INCREASE;
const char** fileTable;
- buf = (char*)malloc(LIST_SIZE_INCREASE);
if (!buf) return NULL;
- bufend = buf + LIST_SIZE_INCREASE;
for (i=0, pos=0, nbFiles=0; i<inputNamesNb; i++) {
if (!UTIL_isDirectory(inputNames[i])) {
- size_t len = strlen(inputNames[i]);
+ size_t const len = strlen(inputNames[i]);
if (buf + pos + len >= bufend) {
ptrdiff_t newListSize = (bufend - buf) + LIST_SIZE_INCREASE;
buf = (char*)UTIL_realloc(buf, newListSize);
fileTable = (const char**)malloc((nbFiles+1) * sizeof(const char*));
if (!fileTable) { free(buf); return NULL; }
- for (i=0, pos=0; i<nbFiles; i++)
- {
+ for (i=0, pos=0; i<nbFiles; i++) {
fileTable[i] = buf + pos;
pos += strlen(fileTable[i]) + 1;
}