53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/* cygerrno.h: main Cygwin header file.
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Copyright 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _CYGERRNO_H
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#define _CYGERRNO_H
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#include <errno.h>
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void __stdcall seterrno_from_win_error (const char *file, int line, DWORD code) __attribute__ ((regparm(3)));
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void __stdcall seterrno (const char *, int line) __attribute__ ((regparm(2)));
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int __stdcall geterrno_from_win_error (DWORD code = GetLastError (), int deferrno = 13 /*EACCESS*/) __attribute__ ((regparm(2)));
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#define __seterrno() seterrno (__FILE__, __LINE__)
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#define __seterrno_from_win_error(val) seterrno_from_win_error (__FILE__, __LINE__, val)
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#define __seterrno_from_nt_status(status) \
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({ \
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DWORD winerr = RtlNtStatusToDosError (status); \
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SetLastError (winerr); \
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__seterrno_from_win_error (winerr); \
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})
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inline int
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__set_errno (const char *fn, int ln, int val)
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{
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debug_printf ("%s:%d val %d", fn, ln, val);
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return errno = _impure_ptr->_errno = val;
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}
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#define set_errno(val) __set_errno (__PRETTY_FUNCTION__, __LINE__, (val))
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#define get_errno() (errno)
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extern "C" void __stdcall set_sig_errno (int e);
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class save_errno
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{
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int saved;
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public:
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save_errno () {saved = get_errno ();}
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save_errno (int what) {saved = get_errno (); set_errno (what); }
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void set (int what) {set_errno (what); saved = what;}
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void reset () {saved = get_errno ();}
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~save_errno () {errno = _impure_ptr->_errno = saved;}
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};
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extern const char *__sp_fn;
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extern int __sp_ln;
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#endif /*_CYGERRNO_H*/
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