snapraid/portable.h
2013-12-28 12:04:16 +01:00

249 lines
4.7 KiB
C

/*
* Copyright (C) 2011 Andrea Mazzoleni
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __PORTABLE_H
#define __PORTABLE_H
#if HAVE_CONFIG_H
#include "config.h" /* Use " to include first in the same directory of this file */
#endif
/***************************************************************************/
/* Config */
#ifdef __MINGW32__ /* Specific for MINGW */
#define __MSVCRT_VERSION__ 0x0601 /* Define the MSVCRT version targetting Windows XP */
#define _WIN32_WINNT 0x501 /* Include Windows XP CreateHardLinkW */
#include <windows.h>
#endif
/**
* Includes some platform specific headers.
*/
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#if HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#if HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#if HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
#if HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#if HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#if HAVE_LINUX_FS_H
#include <linux/fs.h>
#endif
#if HAVE_LINUX_FIEMAP_H
#include <linux/fiemap.h>
#endif
/**
* Includes some standard headers.
*/
#include <stdio.h>
#include <stdlib.h> /* On many systems (e.g., Darwin), `stdio.h' is a prerequisite. */
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <fcntl.h>
#include <assert.h>
#include <errno.h>
#include <signal.h>
#include <limits.h>
#if HAVE_STDINT_H
#include <stdint.h>
#endif
#if HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if TIME_WITH_SYS_TIME
#include <sys/time.h>
#include <time.h>
#else
#if HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
#endif
#if HAVE_DIRENT_H
#include <dirent.h>
#define NAMLEN(dirent) strlen((dirent)->d_name)
#else
#define dirent direct
#define NAMLEN(dirent) (dirent)->d_namlen
#if HAVE_SYS_NDIR_H
#include <sys/ndir.h>
#endif
#if HAVE_SYS_DIR_H
#include <sys/dir.h>
#endif
#if HAVE_NDIR_H
#include <ndir.h>
#endif
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_GETOPT_H
#include <getopt.h>
#endif
#if HAVE_FNMATCH_H
#include <fnmatch.h>
#else
#include "fnmatch.h"
#endif
/**
* Disable case check in Windows.
*/
#ifdef _WIN32
#define FNM_CASEINSENSITIVE_FOR_WIN FNM_CASEFOLD
#else
#define FNM_CASEINSENSITIVE_FOR_WIN 0
#endif
#if HAVE_IO_H
#include <io.h>
#endif
#if HAVE_GETOPT_LONG
#define SWITCH_GETOPT_LONG(a,b) a
#else
#define SWITCH_GETOPT_LONG(a,b) b
#endif
/**
* Enables lock file support.
*/
#if HAVE_FLOCK && HAVE_FTRUNCATE
#define HAVE_LOCKFILE 1
#endif
/**
* Includes specific support for Windows or Linux.
*/
#ifdef __MINGW32__
#include "mingw.h"
#else
#include "unix.h"
#endif
/**
* Missing __always_inline, like in MINGW.
*/
#ifndef __always_inline
#define __always_inline inline __attribute__((always_inline))
#endif
/**
* Missing __aligned, like in user mode.
*/
#ifndef __aligned
#define __aligned(a) __attribute__((aligned(a)))
#endif
/**
* Another name for link() to avoid confusion with local variables called "link".
*/
static inline int hardlink(const char* a, const char* b)
{
return link(a, b);
}
/**
* Get the device UUID.
* Returns 0 on success.
*/
int devuuid(uint64_t device, char* uuid, size_t size);
/**
* Special value returned when the file doesn't have a real offset.
* For example, because it's stored in the NTFS MFT.
*/
#define FILEPHY_WITHOUT_OFFSET 0
/**
* Special value returned when the filesystem doesn't report any offset for unknown reason.
*/
#define FILEPHY_UNREPORTED_OFFSET 1
/**
* Value indicating real offsets. All offsets greater or equal at this one are real.
*/
#define FILEPHY_REAL_OFFSET 2
/**
* Get the physcal address of the specified file.
* This is expected to be just a hint and not necessarely correct or unique.
* Returns 0 on success.
*/
int filephy(const char* path, struct stat* st, uint64_t* physical);
/**
* Checks if the underline filesystem support persistent inodes.
* Returns -1 on error, 0 on success.
*/
int fsinfo(const char* path, int* has_persistent_inode);
/**
* Initializes the system.
*/
void os_init(void);
/**
* Deintialize the system.
*/
void os_done(void);
/**
* Global log file.
*/
FILE* stdlog;
#endif