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/*
Copyright (C) 2010 Andrey Nazarov
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef ERROR_H
#define ERROR_H
#include <errno.h>
#define ERRNO_MAX 0x5000
#if EINVAL > 0
#define Q_ERR(e) (e < 1 || e > ERRNO_MAX ? -ERRNO_MAX : -e)
#else
#define Q_ERR(e) (e > -1 || e < -ERRNO_MAX ? -ERRNO_MAX : e)
#endif
#define _Q_ERR(e) (-ERRNO_MAX - e)
// These values are extensions to system errno.
#define Q_ERR_SUCCESS 0 // Success
#define Q_ERR_FAILURE _Q_ERR(0) // Unspecified error
#define Q_ERR_UNKNOWN_FORMAT _Q_ERR(1) // Unknown file format
#define Q_ERR_INVALID_FORMAT _Q_ERR(2) // Invalid file format
#define Q_ERR_BAD_EXTENT _Q_ERR(3) // Bad lump extent
#define Q_ERR_ODD_SIZE _Q_ERR(4) // Odd lump size
#define Q_ERR_TOO_MANY _Q_ERR(5) // Too many elements
#define Q_ERR_TOO_FEW _Q_ERR(6) // Too few elements
#define Q_ERR_BAD_INDEX _Q_ERR(7) // Index out of range
#define Q_ERR_INVALID_PATH _Q_ERR(8) // Invalid quake path
#define Q_ERR_NAMETOOSHORT _Q_ERR(9) // File name too short
#define Q_ERR_UNEXPECTED_EOF _Q_ERR(10) // Unexpected end of file
#define Q_ERR_FILE_TOO_SMALL _Q_ERR(11) // File too small
#define Q_ERR_FILE_NOT_REGULAR _Q_ERR(12) // Not a regular file
#define Q_ERR_BAD_RLE_PACKET _Q_ERR(13) // Bad run length packet
#define Q_ERR_STRING_TRUNCATED _Q_ERR(14) // String truncation avoided
#define Q_ERR_RUNAWAY_LOOP _Q_ERR(15) // Runaway loop avoided
#define Q_ERR_INFINITE_LOOP _Q_ERR(16) // Infinite loop avoided
#define Q_ERR_LIBRARY_ERROR _Q_ERR(17) // Library error
#define Q_ERR_OUT_OF_SLOTS _Q_ERR(18) // Out of slots
#if USE_ZLIB
#define Q_ERR_INFLATE_FAILED _Q_ERR(19) // Inflate failed
#define Q_ERR_DEFLATE_FAILED _Q_ERR(20) // Deflate failed
#define Q_ERR_NOT_COHERENT _Q_ERR(21) // Coherency check failed
#endif
// These values directly map to system errno.
#define Q_ERR_NOENT Q_ERR(ENOENT)
#define Q_ERR_NAMETOOLONG Q_ERR(ENAMETOOLONG)
#define Q_ERR_INVAL Q_ERR(EINVAL)
#define Q_ERR_NOSYS Q_ERR(ENOSYS)
#define Q_ERR_SPIPE Q_ERR(ESPIPE)
#define Q_ERR_FBIG Q_ERR(EFBIG)
#define Q_ERR_ISDIR Q_ERR(EISDIR)
#define Q_ERR_AGAIN Q_ERR(EAGAIN)
#define Q_ERR_MFILE Q_ERR(EMFILE)
#define Q_ERR_EXIST Q_ERR(EEXIST)
#define Q_ERR_BADF Q_ERR(EBADF)
#define Q_ERR_PERM Q_ERR(EPERM)
#define Q_PrintError(what, code) \
Com_Printf("Couldn't %s: %s\n", what, Q_ErrorString(code))
// Maps system error to qerror_t, evaluating errno exactly once.
// Useful for platforms where errno is defined as a function (e.g. Win32).
// This function always returns error value (i.e., less than zero).
static inline qerror_t Q_Errno(void)
{
int e = errno;
return Q_ERR(e);
}
const char *Q_ErrorString(qerror_t error);
#endif // ERROR_H
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