funcReadFile(filenamestring)([]byte,error) ReadFile reads the file named by filename and returns the contents. A successful call returns err == nil, not err == EOF. Because ReadFile reads the whole file, it does not treat an EOF from Read as an error to be reported. func WriteFile...
= nil && err != io.EOF { panic(err) } if n == 0 { break } // write a chunk if _, err := fo.Write(buf[:n]); err != nil { panic(err) } } } Here I used os.Open and os.Create which are convenient wrappers around os.OpenFile. We usually don't need to call Open...
sevp.signo=_SIGPROF// 设置signal类型为SIGPROFsevp.sigev_notify_thread_id=int32(mp.procid)// 设置signal通知给线程procidret:=timer_create(_CLOCK_THREAD_CPUTIME_ID,&sevp,&timerid)// 创建定时器...ret=timer_settime(timerid,0,spec,nil)// 启动定时器...} SIGPROF 信号处理: 线程收到 SIGPROF ...
Thecreatefunction in line no. 9 of the program above creates a file namedtest.txt. If a file with that name already exists, then the create function truncates the file. This function returns aFile descriptor. In line no 14, we write the stringHello Worldto the file using theWriteStringm...
funcmain(){// 1.创建listenervarlistener,_=CreateListener(network,address)// 2.初始化EventLoopvareventLoop,_=NewEventLoop(func(ctx context.Context,connection Connection)error{time.Sleep(time.Duration(rand.Intn(3))*time.Second)ifl:=connection.Reader().Len();l>0{vardata,err=connection.Reader(...
(out_format_ctx); return ret; } out_stream->codecpar->codec_tag = 0; } // Write the header for the output file AVDictionary *opts = NULL; // mp4输出的话需要设置空的moov av_dict_set(&opts, "movflags", "empty_moov+faststart", 0); if ((ret = avformat_write_header(out_format_...
varcpuprofile=flag.String("cpuprofile","","write cpu profile to file") funcmain(){ flag.Parse() if*cpuprofile!=""{ f,err:=os.Create(*cpuprofile) // if err != nil { // log.Fatal(err) // } err=pprof.StartCPUProfile(f) ...
ctx := req.Context() span := trace.SpanFromContext(ctx) span.AddEvent("say : Hello, I am david", trace.WithAttributes(attribute.KeyValue{ Key:"label-key-1", Value: attribute.StringValue("label-value-1"), })) _, _ = io.WriteString(w,"Hello, I am david...
())}func getLogWriter() zapcore.WriteSyncer {//如果想要追加写入可以查看我的博客文件操作那一章file, _ := os.Create("./test.log")return zapcore.AddSync(file)}func simpleHttpGet(url string) {sugarLogger.Debugf("Trying to hit GET request for %s", url)resp, err := http.Get(url)if ...
如果用户配置了多个Clickhouse Output,对一个 event 做字段类型转换可能会导致 concurrent map writes。这种情况(多个 Clickhouse Output)下,用户需要自己使用 Convert Filter 对字段做类型转换,并禁用 Clickhouse Output 里面的自动类型转换。 bulk_actions 多少次提交一次Bulk请求到ES集群. 默认 1000...