//
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// Copyright © 2016 dahua. All rights reserved.
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//
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#define TIMER_INTERVAL 120.0 //120秒判断一次文件是否超过最大容量
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#import "LCLogManager.h"
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@interface LCLogManager()
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{
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NSTimer * _timer; //计时器
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NSString * _currentPath; //当前日志文件完整路径
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NSInteger _index; //日志文件索引
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NSString *_logFilePath; //日志文件所在文件夹路径
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}
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@end
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@implementation LCLogManager
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#pragma mark - 🍎override method
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- (instancetype)init
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{
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if (self = [super init]) {
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_isLogging = NO;
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_maxLogSize = 0.1;
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_index = 0;
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_isCycle = NO;
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}
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return self;
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}
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#pragma mark - 🍊singleton
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static LCLogManager *instance;
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+ (instancetype)shareInstance
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{
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if (nil == instance)
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{
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instance = [[LCLogManager alloc]init];
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}
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return instance;
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}
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#pragma mark - 🍌public method
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- (void)startFileLog
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{
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//1.更新状态
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_isLogging = YES;
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//2.创建新日志文件夹
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NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
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NSString *docDirectory = [paths objectAtIndex:0];
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NSString *mainDirectory = [docDirectory stringByAppendingPathComponent:@"AppLog"];
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if(![[NSFileManager defaultManager]fileExistsAtPath:mainDirectory isDirectory:nil])
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{
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NSError *error;
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[[NSFileManager defaultManager] createDirectoryAtPath:mainDirectory withIntermediateDirectories:YES attributes:nil error:&error];
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NSLog(@"%@", error);
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}
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NSString *logDir = [mainDirectory stringByAppendingPathComponent:@"Log"];
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if(![[NSFileManager defaultManager]fileExistsAtPath:logDir isDirectory:nil])
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{
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NSError *error;
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[[NSFileManager defaultManager] createDirectoryAtPath:logDir withIntermediateDirectories:YES attributes:nil error:&error];
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NSLog(@"%@", error);
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}
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NSDateFormatter *dateFormatter = [NSDateFormatter new];
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[dateFormatter setDateFormat:@"yy_MM_dd_HH_mm_ss"];
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NSString *dateStr = [dateFormatter stringFromDate:[NSDate date]];
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NSString * logDirectory = [logDir stringByAppendingPathComponent:dateStr];
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NSLog(@"-----%@",logDirectory);
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[[NSFileManager defaultManager] createDirectoryAtPath:logDirectory withIntermediateDirectories:YES attributes:nil error:nil];
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_logDirectory = logDirectory;
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//3.开启定时器
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if (nil == _timer)
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{
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_timer = [NSTimer scheduledTimerWithTimeInterval:TIMER_INTERVAL
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target:self
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selector:@selector(timerTick)
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userInfo:nil
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repeats:YES];
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[[NSRunLoop currentRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];
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//第一次手动写入，之后每120秒定时器判断一次文件是否超过阈值
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[self directLogInIndex:_index];
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}
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}
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- (void)endFileLog
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{
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//1.更新状态
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_isLogging = NO;
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//1.销毁定时器
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[_timer invalidate];
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_timer = nil;
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//2.停止写入
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int result = fclose(stdout);
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int result2 = fclose(stderr);
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}
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- (BOOL)removeSendLogFile
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{
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//删除日志文件
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if (_logDirectory) {
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NSError *error;
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[[NSFileManager defaultManager] removeItemAtPath:_logDirectory error:&error];
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NSLog(@"%@", error);
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if (error == nil) {
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//恢复默认
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_logDirectory = nil;
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_index = 0;
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return YES;
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}
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return NO;
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}
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return NO;
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}
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- (NSString *)getLogFilePath {
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return _logDirectory == nil? nil : _logDirectory;
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}
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#pragma mark - 🍑private method
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//写入日志文件
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- (void)directLogInIndex:(NSInteger )idx
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{
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//如果已经连接XCode调试则不输出到文件
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if(isatty(STDOUT_FILENO))
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{
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return ;
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}
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NSString *fileName = [NSString stringWithFormat:@"log%ld.txt", (long)_index];
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NSString *logPath = [_logDirectory stringByAppendingPathComponent:fileName];
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freopen([logPath cStringUsingEncoding:NSASCIIStringEncoding], "w+", stdout);
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freopen([logPath cStringUsingEncoding:NSASCIIStringEncoding], "w+", stderr);
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_currentPath = logPath;
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}
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//计算单个文件的大小
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- (float) fileSizeAtPath:(NSString*) filePath{
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NSFileManager* manager = [NSFileManager defaultManager];
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if ([manager fileExistsAtPath:filePath]){
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float size = [[manager attributesOfItemAtPath:filePath error:nil] fileSize]/(1024.0*1024);
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return size;
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}
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return 0;
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}
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#pragma mark - 🍉Timer Action
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-(void)timerTick
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{
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if([self fileSizeAtPath:_currentPath]>_maxLogSize)
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{
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if (_isCycle)
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{
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_index = !_index;
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}
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else
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{
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_index ++ ;
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}
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[self directLogInIndex:_index];
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}
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}
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@end
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