/usr/include/libvcd/logging.h is in libvcdinfo-dev 0.7.24+dfsg-0.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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$Id: logging.h,v 1.4 2005/07/16 16:50:08 rocky Exp $
Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2003, 2005 Rocky Bernstein <rocky@panix.com>
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/** \file logging.h
* \brief Header to control logging and level of detail of output.
*
*/
#ifndef __VCD_LOGGING_H__
#define __VCD_LOGGING_H__
#include <libvcd/types.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* The different log levels supported.
*/
typedef enum {
VCD_LOG_DEBUG = 1, /**< Debug-level messages - helps debug what's up. */
VCD_LOG_INFO, /**< Informational - indicates perhaps something of
interest. */
VCD_LOG_WARN, /**< Warning conditions - something that looks funny. */
VCD_LOG_ERROR, /**< Error conditions - may terminate program. */
VCD_LOG_ASSERT /**< Critical conditions - may abort program. */
} vcd_log_level_t;
/**
* The place to save the preference concerning how much verbosity
* is desired. This is used by the internal default log handler, but
* it could be use by applications which provide their own log handler.
*/
extern vcd_log_level_t vcd_loglevel_default;
/**
* This type defines the signature of a log handler. For every
* message being logged, the handler will receive the log level and
* the message string.
*
* @see vcd_log_set_handler
* @see vcd_log_level_t
*
* @param level The log level.
* @param message The log message.
*/
typedef void (*vcd_log_handler_t) (vcd_log_level_t level,
const char message[]);
/**
* Set a custom log handler for libcdio. The return value is the log
* handler being replaced. If the provided parameter is NULL, then
* the handler will be reset to the default handler.
*
* @see vcd_log_handler_t
*
* @param new_handler The new log handler.
* @return The previous log handler.
*/
vcd_log_handler_t
vcd_log_set_handler (vcd_log_handler_t new_handler);
/**
* Handle an message with the given log level
*
* @see vcd_debug
* @see vcd_info
* @see vcd_warn
* @see vcd_error
* @param level The log level.
* @param format printf-style format string
* @param ... remaining arguments needed by format string
*/
void
vcd_log (vcd_log_level_t level, const char format[], ...) GNUC_PRINTF(2, 3);
/**
* Handle a debugging message.
*
* @see vcd_log for a more generic routine
*/
void
vcd_debug (const char format[], ...) GNUC_PRINTF(1,2);
/**
* Handle an informative message.
*
* @see vcd_log for a more generic routine
*/
void
vcd_info (const char format[], ...) GNUC_PRINTF(1,2);
/**
* Handle a warning message.
*
* @see vcd_log for a more generic routine
*/
void
vcd_warn (const char format[], ...) GNUC_PRINTF(1,2);
/**
* Handle an error message.
*
* @see vcd_log for a more generic routine. Execution is terminated.
*/
void
vcd_error (const char format[], ...) GNUC_PRINTF(1,2);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __VCD_LOGGING_H__ */
/*
* Local variables:
* c-file-style: "gnu"
* tab-width: 8
* indent-tabs-mode: nil
* End:
*/
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