log.h

一个基于linux的TCP/IP协议栈的实现

/* log.h
 * [e-mail]
 * 2006-09-01
 */

#ifndef INCLUDED_LOG_H
#define INCLUDED_LOG_H

#define __SHORTFILE__ \
	({\
		char *header = __FILE__;	\
		char *ptr = header + strlen( header ) - 1; \
		while( *ptr != '/' && ptr != header ) \
			ptr --; \
		if( *ptr == '/')\
			ptr ++;\
		ptr; \
	})

#ifdef __KERNEL__
	#define PR_TRACE( fmt, args... )\
		printk( KERN_ERR "%s[%d]:%s[TRACE]: " fmt, __SHORTFILE__, \
			__LINE__, __FUNCTION__, ##args )
	#define PR_TRACEC( fmt, args... )

	#define PR_ERR( fmt, args... ) \
		printk( KERN_ERR "%s[%d]:%s[ERR]: " fmt, __SHORTFILE__, \
			__LINE__, __FUNCTION__, ##args )
	#define PR_WARN( fmt, args... ) \
		printk( KERN_WARNING "%s[%d]:%s[WARNING]: " fmt, __SHORTFILE__, \
			__LINE__, __FUNCTION__, ##args )
	#define PR_NOTICE( fmt, args... ) \
		printk(KERN_NOTICE "%s[%d]:%s[NOTICE]: " fmt, __SHORTFILE__, \
			__LINE__, __FUNCTION__, ##args )
	#ifdef MYIPV4_DEEP_DEBUG
		#define PR_DEEP_DEBUG( fmt, args... ) \
			printk( KERN_NOTICE "%s[%d]:%s[DEBUG]: " fmt, __SHORTFILE__, \
								__LINE__, __FUNCTION__, ##args )
	#else
			#define PR_DEEP_DEBUG( fmt, args... )
	#endif

	#ifdef MYIPV4_DEBUG
		#define PR_DEBUG( fmt, args... ) \
			printk( KERN_NOTICE "%s[%d]:%s[DEBUG]: " fmt,  __SHORTFILE__, \
								__LINE__,  __FUNCTION__, ##args )
	#else
		#define PR_DEBUG( fmt, args... )
	#endif
#else
	#include <string.h>

	#define PR_ERR( fmt, args... ) \
		fprintf( stderr, "%s[%d]:%s[ERR]: " fmt, __SHORTFILE__, \
						__LINE__, __FUNCTION__, ##args )
	#define PR_WARN( fmt, args... ) \
		fprintf( stderr, "%s[%d]:%s[WARNING]: " fmt, __SHORTFILE__, \
						__LINE__, __FUNCTION__, ##args )
	#define PR_NOTICE( fmt, args... ) \
		fprintf( stdout, "%s[%d]:%s[NOTICE]: " fmt, __SHORTFILE__, \
						__LINE__, __FUNCTION__, ##args )
	#ifdef APP_DEBUG	
		#define PR_DEBUG( fmt, args... ) \
			fprintf( stdout, "%s[%d]:%s[DEBUG]: " fmt,  __SHORTFILE__, \
							__LINE__,  __FUNCTION__, ##args )
	#else
		#define PR_DEBUG( fmt, args... )
	#endif
#endif

#endif //INCLUDED_LOG_H