err.h

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/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* ====================================================================
 * Copyright (c) 1999-2004 Carnegie Mellon University.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * This work was supported in part by funding from the Defense Advanced
 * Research Projects Agency and the National Science Foundation of the
 * United States of America, and the CMU Sphinx Speech Consortium.
 *
 * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
 * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * ====================================================================
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 */
 
#ifndef _LIBUTIL_ERR_H_
#define _LIBUTIL_ERR_H_
 
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
 
/* Win32/WinCE DLL gunk */
#include <sphinxbase/sphinxbase_export.h>
 
#ifdef __cplusplus
extern "C" {
#endif
#if 0
/* Fool Emacs. */
}
#endif
 
#define E_SYSCALL(stmt, ...)  if (stmt) E_FATAL_SYSTEM(__VA_ARGS__);
 
#define FILELINE  __FILE__ , __LINE__
 
#define E_FATAL(...)                               \
    do {                                           \
        err_msg(ERR_FATAL, FILELINE, __VA_ARGS__); \
        exit(EXIT_FAILURE);                        \
    } while (0)
 
#define E_FATAL_SYSTEM(...)                                                  \
    do {                                                                     \
        err_msg_system(ERR_FATAL, FILELINE, __VA_ARGS__);                    \
        exit(EXIT_FAILURE);                                                  \
    } while (0)
 
#define E_ERROR_SYSTEM(...)     err_msg_system(ERR_ERROR, FILELINE, __VA_ARGS__)
 
#define E_ERROR(...)     err_msg(ERR_ERROR, FILELINE, __VA_ARGS__)
 
#define E_WARN(...)      err_msg(ERR_WARN, FILELINE, __VA_ARGS__)
 
#define E_INFO(...)      err_msg(ERR_INFO, FILELINE, __VA_ARGS__)
 
#define E_INFOCONT(...)  err_msg(ERR_INFOCONT, NULL, 0, __VA_ARGS__)
 
#define E_INFO_NOFN(...)  err_msg(ERR_INFO, NULL, 0, __VA_ARGS__)
 
#ifdef SPHINX_DEBUG
#define E_DEBUG(...) err_msg(ERR_DEBUG, NULL, 0, __VA_ARGS__)
#else
#define E_DEBUG(...)
#endif
 
typedef enum err_e {
    ERR_DEBUG,
    ERR_INFO,
    ERR_INFOCONT,
    ERR_WARN,
    ERR_ERROR,
    ERR_FATAL,
    ERR_MAX
} err_lvl_t;
 
SPHINXBASE_EXPORT void
err_msg(err_lvl_t lvl, const char *path, long ln, const char *fmt, ...);
 
SPHINXBASE_EXPORT void
err_msg_system(err_lvl_t lvl, const char *path, long ln, const char *fmt, ...);
 
SPHINXBASE_EXPORT void
err_logfp_cb(void * user_data, err_lvl_t level, const char *fmt, ...);
 
typedef void (*err_cb_f)(void* user_data, err_lvl_t, const char *, ...);
 
SPHINXBASE_EXPORT void
err_set_callback(err_cb_f callback, void *user_data);
 
SPHINXBASE_EXPORT void
err_set_logfp(FILE *stream);
 
SPHINXBASE_EXPORT FILE *
err_get_logfp(void);
 
SPHINXBASE_EXPORT int
err_set_logfile(const char *path);
 
#ifdef __cplusplus
}
#endif
 
#endif /* !_ERR_H */