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//
// GTMLogger+ASL.m
//
// Copyright 2007-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMLogger+ASL.h"
#import "GTMDefines.h"
@implementation GTMLogger (GTMLoggerASLAdditions)
+ (id)standardLoggerWithASL {
id me = [self standardLogger];
[me setWriter:[[[GTMLogASLWriter alloc] init] autorelease]];
[me setFormatter:[[[GTMLogBasicFormatter alloc] init] autorelease]];
return me;
}
@end
@implementation GTMLogASLWriter
+ (id)aslWriter {
return [[[self alloc] init] autorelease];
}
- (id)init {
return [self initWithClientClass:nil];
}
- (id)initWithClientClass:(Class)clientClass {
if ((self = [super init])) {
aslClientClass_ = clientClass;
if (aslClientClass_ == nil) {
aslClientClass_ = [GTMLoggerASLClient class];
}
}
return self;
}
- (void)logMessage:(NSString *)msg level:(GTMLoggerLevel)level {
static NSString *const kASLClientKey = @"GTMLoggerASLClientKey";
// Lookup the ASL client in the thread-local storage dictionary
NSMutableDictionary *tls = [[NSThread currentThread] threadDictionary];
GTMLoggerASLClient *client = [tls objectForKey:kASLClientKey];
// If the ASL client wasn't found (e.g., the first call from this thread),
// then create it and store it in the thread-local storage dictionary
if (client == nil) {
client = [[[aslClientClass_ alloc] init] autorelease];
[tls setObject:client forKey:kASLClientKey];
}
// Map the GTMLoggerLevel level to an ASL level.
int aslLevel = ASL_LEVEL_INFO;
switch (level) {
case kGTMLoggerLevelUnknown:
case kGTMLoggerLevelDebug:
case kGTMLoggerLevelInfo:
aslLevel = ASL_LEVEL_NOTICE;
break;
case kGTMLoggerLevelError:
aslLevel = ASL_LEVEL_ERR;
break;
case kGTMLoggerLevelAssert:
aslLevel = ASL_LEVEL_ALERT;
break;
}
[client log:msg level:aslLevel];
}
@end // GTMLogASLWriter
@implementation GTMLoggerASLClient
- (id)init {
if ((self = [super init])) {
client_ = asl_open(NULL, NULL, 0);
if (client_ == nil) {
// COV_NF_START - no real way to test this
[self release];
return nil;
// COV_NF_END
}
}
return self;
}
- (void)dealloc {
if (client_) asl_close(client_);
[super dealloc];
}
#if GTM_SUPPORT_GC
- (void)finalize {
if (client_) asl_close(client_);
[super finalize];
}
#endif
// We don't test this one line because we don't want to pollute actual system
// logs with test messages.
// COV_NF_START
- (void)log:(NSString *)msg level:(int)level {
asl_log(client_, NULL, level, "%s", [msg UTF8String]);
}
// COV_NF_END
@end // GTMLoggerASLClient
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