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executable file 100 lines (79 sloc) 2.345 kb
#import "DDASLLogger.h"
#import <libkern/OSAtomic.h>
/**
* Welcome to Cocoa Lumberjack!
*
* The project page has a wealth of documentation if you have any questions.
* https://github.com/robbiehanson/CocoaLumberjack
*
* If you're new to the project you may wish to read the "Getting Started" wiki.
* https://github.com/robbiehanson/CocoaLumberjack/wiki/GettingStarted
**/
#if ! __has_feature(objc_arc)
#warning This file must be compiled with ARC. Use -fobjc-arc flag (or convert project to ARC).
#endif
@implementation DDASLLogger
static DDASLLogger *sharedInstance;
/**
* The runtime sends initialize to each class in a program exactly one time just before the class,
* or any class that inherits from it, is sent its first message from within the program. (Thus the
* method may never be invoked if the class is not used.) The runtime sends the initialize message to
* classes in a thread-safe manner. Superclasses receive this message before their subclasses.
*
* This method may also be called directly (assumably by accident), hence the safety mechanism.
**/
+ (void)initialize
{
static BOOL initialized = NO;
if (!initialized)
{
initialized = YES;
sharedInstance = [[DDASLLogger alloc] init];
}
}
+ (DDASLLogger *)sharedInstance
{
return sharedInstance;
}
- (id)init
{
if (sharedInstance != nil)
{
return nil;
}
if ((self = [super init]))
{
// A default asl client is provided for the main thread,
// but background threads need to create their own client.
client = asl_open(NULL, "com.apple.console", 0);
}
return self;
}
- (void)logMessage:(DDLogMessage *)logMessage
{
NSString *logMsg = logMessage->logMsg;
if (formatter)
{
logMsg = [formatter formatLogMessage:logMessage];
}
if (logMsg)
{
const char *msg = [logMsg UTF8String];
int aslLogLevel;
switch (logMessage->logLevel)
{
// Note: By default ASL will filter anything above level 5 (Notice).
// So our mappings shouldn't go above that level.
case 1 : aslLogLevel = ASL_LEVEL_CRIT; break;
case 2 : aslLogLevel = ASL_LEVEL_ERR; break;
case 3 : aslLogLevel = ASL_LEVEL_WARNING; break;
default : aslLogLevel = ASL_LEVEL_NOTICE; break;
}
asl_log(client, NULL, aslLogLevel, "%s", msg);
}
}
- (NSString *)loggerName
{
return @"cocoa.lumberjack.aslLogger";
}
@end
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