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MSVC: xz: Make file_io.c and file_io.h compatible with MSVC.

Thanks to Kelvin Lee for the original patches
and testing the modifications I made.
This commit is contained in:
Lasse Collin 2023-09-05 22:42:10 +03:00
parent c660b8d78b
commit 79334e7f20
2 changed files with 36 additions and 0 deletions

View file

@ -39,6 +39,32 @@ static bool warn_fchown;
#include "tuklib_open_stdxxx.h"
#ifdef _MSC_VER
# ifdef _WIN64
typedef __int64 ssize_t;
# else
typedef int ssize_t;
# endif
typedef int mode_t;
# define S_IRUSR _S_IREAD
# define S_IWUSR _S_IWRITE
# define setmode _setmode
# define open _open
# define close _close
# define lseek _lseeki64
# define unlink _unlink
// The casts are to silence warnings.
// The sizes are known to be small enough.
# define read(fd, buf, size) _read(fd, buf, (unsigned int)(size))
# define write(fd, buf, size) _write(fd, buf, (unsigned int)(size))
# define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
# define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
#endif
#ifndef O_BINARY
# define O_BINARY 0
#endif

View file

@ -18,6 +18,16 @@
# define IO_BUFFER_SIZE (BUFSIZ & ~7U)
#endif
#ifdef _MSC_VER
// The first one renames both "struct stat" -> "struct _stat64"
// and stat() -> _stat64(). The documentation mentions only
// "struct __stat64", not "struct _stat64", but the latter
// works too.
# define stat _stat64
# define fstat _fstat64
# define off_t __int64
#endif
/// is_sparse() accesses the buffer as uint64_t for maximum speed.
/// The u32 and u64 members must only be access through this union