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sortix--sortix/libmaxsi/error.cpp

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/******************************************************************************
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011, 2012.
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This file is part of LibMaxsi.
LibMaxsi 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.
LibMaxsi 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.
You should have received a copy of the GNU Lesser General Public License
along with LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
error.cpp
Error reporting functions and utilities.
*******************************************************************************/
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#define __SORTIX_STDLIB_REDIRECTS 0
#include <libmaxsi/platform.h>
#include <libmaxsi/error.h>
#ifndef SORTIX_KERNEL
#include <libmaxsi/syscall.h>
#include <stdio.h>
#endif
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namespace Maxsi {
namespace Error {
extern "C" { int global_errno = 0; }
extern "C" { errno_location_func_t errno_location_func = NULL; }
#ifndef SORTIX_KERNEL
DEFN_SYSCALL1(int, SysRegisterErrno, SYSCALL_REGISTER_ERRNO, int*);
extern "C" void init_error_functions()
{
global_errno = 0;
SysRegisterErrno(&global_errno);
}
#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;
}
extern "C" const char* sortix_strerror(int errnum)
{
switch ( errnum )
{
case ENOTBLK: return "Block device required";
case ENODEV: return "No such device";
case EWOULDBLOCK: return "Operation would block";
case EBADF: return "Bad file descriptor";
case EOVERFLOW: return "Value too large to be stored in data type";
case ENOENT: return "No such file or directory";
case ENOSPC: return "No space left on device";
case EEXIST: return "File exists";
case EROFS: return "Read-only file system";
case EINVAL: return "Invalid argument";
case ENOTDIR: return "Not a directory";
case ENOMEM: return "Not enough memory";
case ERANGE: return "Result too large";
case EISDIR: return "Is a directory";
case EPERM: return "Operation not permitted";
case EIO: return "Input/output error";
case ENOEXEC: return "Exec format error";
case EACCES: return "Permission denied";
case ESRCH: return "No such process";
case ENOTTY: return "Not a tty";
case ECHILD: return "No child processes";
case ENOSYS: return "Function not implemented";
case ENOTSUP: return "Operation not supported";
case EBLOCKING: return "Operation is blocking";
case EINTR: return "Interrupted function call";
case ENOTEMPTY: return "Directory not empty";
case EBUSY: return "Device or resource busy";
case EPIPE: return "Broken pipe";
case EILSEQ: return "Illegal byte sequence";
case ELAKE: return "Sit by a lake";
case EMFILE: return "Too many open files";
case EAGAIN: return "Resource temporarily unavailable";
case EEOF: return "End of file";
case EBOUND: return "Out of bounds";
case EINIT: return "Not initialized";
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case ENODRV: return (char*) "No such driver";
default: return "Unknown error condition";
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}
}
extern "C" char* strerror(int errnum)
{
return (char*) sortix_strerror(errnum);
}
} // namespace Error
} // namespace Maxsi