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sortix--sortix/libc/errno/errno.cpp

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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
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You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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errno/errno.cpp
Value storing a numeric value representing the last occured error.
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*******************************************************************************/
#define __SORTIX_STDLIB_REDIRECTS 0
#include <errno.h>
#include <stddef.h>
#ifndef __is_sortix_kernel
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#include <stdio.h>
#endif
extern "C" { int global_errno = 0; }
extern "C" { errno_location_func_t errno_location_func = NULL; }
#ifndef __is_sortix_kernel
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extern "C" void init_error_functions()
{
global_errno = 0;
}
#endif
extern "C" int* get_errno_location(void)
{
if ( errno_location_func ) { return errno_location_func(); }
return &global_errno;
}
extern "C" void set_errno_location_func(errno_location_func_t func)
{
errno_location_func = func;
}