MLog.m

#import "MLog.h"

//MLog.m
static BOOL __MLogOn=NO;

@implementation MStringLog
+(void)initialize
{
#if defined (MLOGTRACE)
	char * env=getenv("MLogOn");
	if(strcmp(env==NULL?"":env,"NO")!=0)
		__MLogOn=YES;
#endif
}

+(void)logFile:(char*)sourceFile lineNumber:(int)lineNumber
       format:(NSString*)format, ...;
{
	va_list ap;
	NSString *print,*file;
	if(__MLogOn==NO)
		return;
	va_start(ap,format);
	file=[[NSString alloc] initWithBytes:sourceFile 
                  length:strlen(sourceFile) 
                  encoding:NSUTF8StringEncoding];
	print=[[NSString alloc] initWithFormat:format arguments:ap];
	va_end(ap);
  //MLog handles synchronization issues
  NSString *log = [NSString stringWithFormat:@"%s:%d %@",[[file lastPathComponent] UTF8String],
                   lineNumber,print];
	NSLog(log);
	[print release];
	[file release];
	
	return;
} 

+(void)setLogOn:(BOOL)logOn
{
	__MLogOn=logOn;
}

@end