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/*************************************************************************/
/* */
/* Centre for Speech Technology Research */
/* University of Edinburgh, UK */
/* Copyright (c) 1994,1995,1996 */
/* All Rights Reserved. */
/* */
/* Permission to use, copy, modify, distribute this software and its */
/* documentation for research, educational and individual use only, is */
/* hereby granted without fee, subject to the following conditions: */
/* 1. The code must retain the above copyright notice, this list of */
/* conditions and the following disclaimer. */
/* 2. Any modifications must be clearly marked as such. */
/* 3. Original authors' names are not deleted. */
/* This software may not be used for commercial purposes without */
/* specific prior written permission from the authors. */
/* */
/* THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK */
/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
/* SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE */
/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
/* THIS SOFTWARE. */
/* */
/*************************************************************************/
/* Author : Paul Taylor */
/* Date : April 1994 */
/*-----------------------------------------------------------------------*/
/* Utility Function header file for C and C++ */
/* */
/*=======================================================================*/
#ifndef __RW_STATUS_H__
#define __RW_STATUS_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <stdio.h>
#include <errno.h>
/*
* make_status_int builds the status as an integer
* make_X_status casts it to the required type.
*/
#define make_status_int(STATE, REASON, ERRNO) \
( ((((unsigned int)(STATE)) & 0xff) <<24) \
| ((((unsigned int)(REASON)) & 0xff) <<16) \
| ((((unsigned int)(ERRNO)) & 0xffff) <<00) \
)
#define make_read_status(STATE, REASON, ERRNO)\
((EST_read_status)(make_status_int(STATE, REASON, ERRNO)))
#define make_write_status(STATE, REASON, ERRNO) \
((EST_write_status)(make_status_int(REASON, STATE, ERRNO)))
/*
* Extract the bits.
*/
#define get_rw_state(STATUS) \
((EST_rw_state)((((unsigned int)(STATUS)) >> 24) & 0xff))
#define get_rw_reason(STATUS) \
((EST_rw_reason)((((unsigned int)(STATUS)) >> 16) & 0xff))
#define get_rw_errno(STATUS) \
((int)((((unsigned int)(STATUS)) >> 0) & 0xff))
/*
* Why we failed.
*/
enum EST_rw_reason {
rwr_none=0,
rwr_format=1,
rwr_unknown=0xff
};
/** State of rw */
enum EST_rw_state {
/// ok
rws_ok=0,
/// partial
rws_partial=1,
/// permission
rws_permission=2,
/// failed
rws_failed=0xff
};
/** Possible outcomes of a file reading operation. More stuff*/
enum EST_read_status {
/// The file was read in successfully
read_ok = make_status_int(rws_ok, rwr_none, 0),
/// The file exists but is not in the format specified
read_format_error = make_status_int(rws_failed, rwr_format, 0),
/// An error occurred while reading
read_error = make_status_int(rws_failed, rwr_unknown, 0)
};
/** Possible outcomes of a file writing operation */
enum EST_write_status {
/// The file was written successfully
write_ok = make_status_int(rws_ok, rwr_none, 0),
/// The file was not written successfully
write_fail = make_status_int(rws_failed, rwr_unknown, 0),
/// The file was not written successfully
write_error = make_status_int(rws_failed, rwr_unknown, 0)
};
#ifdef __cplusplus
}
#endif
/*
* Temporary redefinitions of the old values.
*/
#define format_ok read_ok
#define wrong_format read_format_error
#define misc_read_error read_error
#define misc_write_error write_error
#endif /*__RW_STATUS_H__ */
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