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/* cygerrno.h: main Cygwin header file.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _CYGERRNO_H
#define _CYGERRNO_H
#include <errno.h>
#include "regparm.h"
void __reg3 seterrno_from_win_error (const char *file, int line, DWORD code);
void __reg3 seterrno_from_nt_status (const char *file, int line, NTSTATUS status);
int __reg2 geterrno_from_win_error (DWORD code = GetLastError (), int deferrno = 13 /*EACCESS*/);
int __reg2 geterrno_from_nt_status (NTSTATUS status, int deferrno = 13 /*EACCESS*/);
inline void __attribute__ ((always_inline))
seterrno (const char *file, int line)
{
seterrno_from_win_error (file, line, GetLastError ());
}
#define __seterrno() seterrno (__FILE__, __LINE__)
#define __seterrno_from_win_error(val) seterrno_from_win_error (__FILE__, __LINE__, val)
#define __seterrno_from_nt_status(status) seterrno_from_nt_status (__FILE__, __LINE__, status)
extern inline int
__set_errno (const char *fn, int ln, int val)
{
debug_printf ("%s:%d setting errno %d", fn, ln, val);
return errno = _impure_ptr->_errno = val;
}
#define set_errno(val) __set_errno (__PRETTY_FUNCTION__, __LINE__, (val))
#define get_errno() (errno)
extern "C" void __stdcall set_sig_errno (int e);
class save_errno
{
int saved;
public:
save_errno () {saved = get_errno ();}
save_errno (int what) {saved = get_errno (); set_errno (what); }
void set (int what) {set_errno (what); saved = what;}
void reset () {saved = get_errno ();}
~save_errno () {errno = _impure_ptr->_errno = saved;}
};
extern const char *__sp_fn;
extern int __sp_ln;
#endif /*_CYGERRNO_H*/
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