newlib/winsup/cygwin/cygerrno.h
Christopher Faylor 0f4db8cbe0 * cygerrno.h (set_errno): Define more informative version of this function for
debugging.
(__set_errno): Declare when DEBUGGING.
* cygheap.h (cygheap_fdget::cygheap_fdget): Add a flag to control when errno is
set.
* debug.cc (__set_errno): New function.
* fcntl.cc (_fcntl): Fix so that correct fd is used for second argument to
dup2.
* syscalls.cc (_cygwin_istext_for_stdio): Don't set errno here when using
cygheap_fdget.
2001-10-16 03:31:50 +00:00

40 lines
1.3 KiB
C++

/* cygerrno.h: main Cygwin header file.
Copyright 2000 Red Hat, Inc.
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. */
void __stdcall seterrno_from_win_error (const char *file, int line, DWORD code) __attribute__ ((regparm(3)));
void __stdcall seterrno (const char *, int line) __attribute__ ((regparm(2)));
int __stdcall geterrno_from_win_error (DWORD code, int deferrno) __attribute__ ((regparm(2)));
#define __seterrno() seterrno (__FILE__, __LINE__)
#define __seterrno_from_win_error(val) seterrno_from_win_error (__FILE__, __LINE__, val)
#ifndef DEBUGGING
#define set_errno(val) (_impure_ptr->_errno = (val))
#else
void __stdcall __set_errno (const char *ln, int ln, int val) __attribute ((regparm(3)));
#define set_errno(val) __set_errno (__PRETTY_FUNCTION__, __LINE__, (val))
#endif
#define get_errno() (_impure_ptr->_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 () {set_errno (saved);}
};
extern const char *__sp_fn;
extern int __sp_ln;