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cc88ef77e7
To avoid linear searches for error codes, autogenerate errmap as simple array of errno values indexed by Windows error codes. Restrict to the first 9000 Windows error codes, we don't care for most of them anyway. Define errmap in its own file errmap.h to clean up errno.cc. Change geterrno_from_win_error accordingly. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/* cygerrno.h: main Cygwin header file.
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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 seterrno_from_win_error (const char *file, int line, DWORD code);
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void seterrno_from_nt_status (const char *file, int line, NTSTATUS status);
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int geterrno_from_win_error (DWORD code = GetLastError (), int deferrno = 13 /*EACCESS*/);
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int geterrno_from_nt_status (NTSTATUS status, int deferrno = 13 /*EACCESS*/);
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inline void __attribute__ ((always_inline))
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seterrno (const char *file, int line)
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{
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seterrno_from_win_error (file, line, GetLastError ());
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}
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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) seterrno_from_nt_status (__FILE__, __LINE__, status)
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extern 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 setting errno %d", fn, ln, val);
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return errno = _REENT_ERRNO(_impure_ptr) = val;
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}
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#define set_errno(val) __set_errno (__PRETTY_FUNCTION__, __LINE__, (val))
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int find_winsock_errno (DWORD why);
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void __set_winsock_errno (const char *fn, int ln);
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#define set_winsock_errno() __set_winsock_errno (__FUNCTION__, __LINE__)
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#define get_errno() (errno)
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extern "C" void 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 = _REENT_ERRNO(_impure_ptr) = 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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