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EST_error.h
/************************************************************************/
/* */
/* Centre for Speech Technology Research */
/* University of Edinburgh, UK */
/* Copyright (c) 1996,1997 */
/* All Rights Reserved. */
/* */
/* Permission is hereby granted, free of charge, to use and distribute */
/* this software and its documentation without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of this work, and to */
/* permit persons to whom this work is furnished to do so, 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. */
/* 4. The authors' names are not used to endorse or promote products */
/* derived from this software without specific prior written */
/* permission. */
/* */
/* 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: Richard Caley (rjc@cstr.ed.ac.uk) */
/* Date: Thu Aug 14 1997 */
/* -------------------------------------------------------------------- */
/* Fatal error calls. */
/* */
/*************************************************************************/
#ifndef __EST_ERROR_H__
#define __EST_ERROR_H__
/* may get included from C */
#ifdef __cplusplus
#include <cstdarg>
#include <cstdio>
#else
#include <stdarg.h>
#include <stdio.h>
#endif
#include <setjmp.h>
#include "EST_unix.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_ERROR_MESSAGE_LENGTH 1024
typedef void (*EST_error_handler)(const char *format, ...);
extern const char *EST_error_where;
extern char *EST_error_message;
extern EST_error_handler EST_bug_func;
extern EST_error_handler EST_error_func;
extern EST_error_handler EST_sys_error_func;
extern EST_error_handler EST_warning_func;
extern EST_error_handler old_error_function;
extern EST_error_handler old_sys_error_function;
extern FILE *EST_error_stream;
extern FILE *EST_warning_stream;
extern jmp_buf *est_errjmp;
extern long errjmp_ok;
extern void EST_errors_default();
extern void EST_errors_quiet();
void EST_quiet_error_fn(const char *format, ...);
void EST_quiet_sys_error_fn(const char *format, ...);
#define _rxp_S_(X) #X
#define _rxp_s_(X) _rxp_S_(X)
#define EST_bug (EST_error_where = __FILE__ ", line " _rxp_s_(__LINE__)),\
(*EST_bug_func)
#if defined(EST_DEBUGGING)
#define EST_exit(N) abort()
#define EST_error (EST_error_where = __FILE__ ", line " _rxp_s_(__LINE__)),\
(*EST_error_func)
#define EST_warning (EST_error_where = __FILE__ ", line " _rxp_s_(__LINE__)),\
(*EST_warning_func)
#define EST_sys_error (EST_error_where = __FILE__ ", line " _rxp_s_(__LINE__)),\
(*EST_sys_error_func)
#else
#define EST_exit(N) exit(N)
#define EST_error (EST_error_where = NULL),\
(*EST_error_func)
#define EST_warning (EST_error_where = NULL),\
(*EST_warning_func)
#define EST_sys_error (EST_error_where = NULL),\
(*EST_sys_error_func)
#endif
#define est_error_throw() (est_errjmp ? longjmp(*est_errjmp,1) : (void)EST_exit(-1))
#define est_error() est_error_throw()
#define CATCH_ERRORS_SKEL( INIT,CLEANUP) \
{ \
INIT \
jmp_buf *old_errjmp = est_errjmp; \
int old_errjmp_ok = errjmp_ok; \
errjmp_ok =1; \
est_errjmp = (jmp_buf *)malloc(sizeof(jmp_buf)); \
int jmp_val = setjmp(*est_errjmp); \
if (jmp_val) { free(est_errjmp); est_errjmp = old_errjmp; errjmp_ok = old_errjmp_ok; CLEANUP} \
if (jmp_val)
#define CATCH_ERRORS() \
CATCH_ERRORS_SKEL(\
const int est_err_quiet=0; \
, \
;)
#define CATCH_ERRORS_QUIET() \
CATCH_ERRORS_SKEL(\
const int est_err_quiet=1; \
EST_error_handler old_error_function=EST_error_func; \
EST_error_handler old_sys_error_function=EST_sys_error_func; \
EST_error_func = EST_quiet_error_fn; \
EST_sys_error_func = EST_quiet_sys_error_fn; \
, \
EST_error_func=old_error_function; \
EST_sys_error_func=old_sys_error_function; \
)
#define END_CATCH_ERRORS() \
free(est_errjmp); \
est_errjmp = old_errjmp; \
errjmp_ok = old_errjmp_ok; \
if (est_err_quiet) { \
EST_error_func=old_error_function; \
EST_sys_error_func=old_sys_error_function; \
} \
} while (0)
/** Defines the attitude of a call to possible fatal errors.
* Passing one of these values to a function tells it how much
* care it needs to take to avoid calls to EST_error.
*
* These need snappier names.
* the numbers are their for historical reasons
*/
enum EST_error_behaviour
{
/** Function will not normally return an error unless something
* really bad has gone wrong. For feature lookup, will return
* default value if feature doesn't exist
*/
est_errors_checked = 0,
/** Function will throw errors when feature doesn't exist.
*/
est_errors_allowed = 1,
/** No fatal errors allowed. Function must catch all EST_error calls.
* Will *always* return a default value.
*/
est_errors_never = 2
};
#ifdef __cplusplus
}
#include "EST_String.h"
/* These are used to pass values into error functions inside */
/* templates. For classes we can define a function cast to EST_String, */
/* but we need the basic versions. */
inline const char *error_name(const EST_String val) {return val;}
inline const char *error_name(const void *val) {return EST_String::cat("<<ptr:", EST_String::Number((long)val, 16), ">>");}
inline const char *error_name(const EST_Regex val) {return val.tostring();}
inline const char *error_name(int val) {return EST_String::Number(val);}
inline const char *error_name(long val) {return EST_String::Number(val);}
inline const char *error_name(float val) {return EST_String::Number(val);}
inline const char *error_name(double val) {return EST_String::Number(val);}
inline const char *error_name(char val) {return EST_String::FromChar(val);}
#endif
#endif
EST_Regex
Definition EST_Regex.h:55
EST_String
Definition EST_String.h:70
EST_String::Number
static EST_String Number(int i, int base=10)
Build string from an integer.
Definition EST_String.cc:1211
EST_String::FromChar
static EST_String FromChar(const char c)
Build string from a single character.
Definition EST_String.h:252
EST_String::cat
static EST_String cat(const EST_String s1, const EST_String s2=Empty, const EST_String s3=Empty, const EST_String s4=Empty, const EST_String s5=Empty, const EST_String s6=Empty, const EST_String s7=Empty, const EST_String s8=Empty, const EST_String s9=Empty)
Definition EST_String.cc:1096