repos_ecs/其他2015后/日志库/log4cproj_c/Log4C/log4c/location_info.h

/* $Id$
*
* location_info.h
* 
* Copyright 2001-2003, Meiosys (www.meiosys.com). All rights reserved.


* See the COPYING file for the terms of usage and distribution.
*/

#ifndef log4c_location_info_h
#define log4c_location_info_h

#define WIDEN2(x) L ## x
#define WIDEN(x) WIDEN2(x)
#define __WFILE__ WIDEN(__FILE__)
#define __WFUNCTION__ WIDEN(__FUNCTION__)

/**
* @file location_info.h
*
* @brief The internal representation of caller location information.
* 
* When a affirmative logging decision is made a log4c_location_info_t is
* created and is passed around the different log4c components.
**/

///#include <log4c/defs.h>

__LOG4C_BEGIN_DECLS

/**
* @brief logging location information
*
* Attributes description:
* 
* @li @c loc_file file name
* @li @c loc_line file line
* @li @c loc_function function name
* @li @c loc_data user data
*
* @todo this is not used
**/
typedef struct 
{
	const TCHAR* loc_file;
	int loc_line;
	const TCHAR* loc_function;
	void* loc_data;

} log4c_location_info_t;

/**
* log4c_location_info_t initializer 
**/
#ifdef __GNUC__
#   define LOG4C_LOCATION_INFO_INITIALIZER(user_data) { __FILE__, __LINE__, __FUNCTION__, user_data }
#else
#ifdef UNICODE
	#define LOG4C_LOCATION_INFO_INITIALIZER(user_data) { __WFILE__, __LINE__, _T("(nil)"), user_data }
#else
	#define LOG4C_LOCATION_INFO_INITIALIZER(user_data) { __FILE__, __LINE__, _T("(nil)"), user_data }
#endif
#endif

#define __log4c_str(n) #n

#ifdef __GNUC__
#   define __log4c_location(n)	__FUNCTION__ "() at " __FILE__ ":" __log4c_str(n)
#else
#ifdef UNICODE
	#define __log4c_location(n)	__WFILE__ _T(":") __log4c_str(n)
#else
	#define __log4c_location(n)	__FILE__ _T(":") __log4c_str(n)
#endif
#endif

/**
* This macro returns the literal representation of a logging event
* location
**/
#define log4c_location __log4c_location(__LINE__)

__LOG4C_END_DECLS

#endif