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  • 旗舰版 C 接口文档

    } else { printf(decrypt is err!nn,i_ret); } } else { printf(encrypt is err!nn,i_ret); } return ( 0 ); int main(){ int i_ret = 0; unsigned char plaintext; char region; char masterkeys; char domainname; memset(plaintext,0,sizeof(plaintext)); memset(region,0,sizeof(region)); memset(masterkeys,0...
  • SDK 接入指南

    } else { printf(decrypt is err!nn,i_ret); } } else { printf(encrypt is err!nn,i_ret); } return ( 0 ); int main(){ int i_ret = 0; unsigned char plaintext; char region; char masterkeys; char domainname; memset(plaintext,0,sizeof(plaintext)); memset(region,0,sizeof(region)); memset(masterkeys,0...
  • 聊聊eventhorizon的Aggregate

    nil} load implements the load method of the eventhorizon.aggregatestoreinterface.func (r *aggregatestore) load(ctx context.context, aggregatetypeeh.aggregatetype,id uuid.uuid) (eh.aggregate, error) { item, err := r.repo.find(ctx, id) iferrors.is(err, eh.errentitynotfound) { create the ...
  • 聊聊eventhorizon的Aggregate

    nil} load implements the load method of the eventhorizon.aggregatestoreinterface.func (r *aggregatestore) load(ctx context.context, aggregatetypeeh.aggregatetype,id uuid.uuid) (eh.aggregate, error) { item, err := r.repo.find(ctx, id) iferrors.is(err, eh.errentitynotfound) { create the ...
  • Golang 语言怎么处理错误?

    fmt.println(err4 == err1) return }fmt.println(err1 is not a variable of the defineerror type)}05golang 1.13 新增is() 函数在 part03 中,我们讲述了“不透明错误处理”的错误处理方式,错误处理方不关心错误提供方的错误值。 但是,在错误处理方需要关心错误提供方的错误值时,错误处理方要对错误提供方的错误...
  • 聊聊cortex的Distributor

    dedupedsamples.withlabelvalues(userid, cluster).add(float64(numsamples))return nil,httpgrpc.errorf(http.statusaccepted, err.error()) } iferrors.is(err, toomanyclusterserror{}){ validation.discardedsamples.withlabelvalues(validation.toomanyhaclusters,userid).add(float64(numsamples)) return nil...
  • 聊聊loki的Query

    statresult.log(level.debug(log)) status := 200 if err ! = nil { status = 500 if errors.is(err, errparse) ||errors.is(err, errpipeline) || errors.is(err, errlimit) { status = 400 } } ifq.record { recordmetrics(ctx, q.params, status, statresult) } returnresult{ data: data, statistics: statresult...
  • The Go Annotated Specification Go注释规范 266b9d49bfa3d2d16b4111378b1f9794373ee141

    a hexbytevaluecontains two hexadecimal digits.(note: this differs from c but issimpler.)it is erroneous for anoctalbytevalue to represent a value larger than 255. (by construction, a hexbytevalue cannot.)a unicodevalue takes one of fourforms: 1. the utf-8 encoding of a unicode code point. ...
  • The Go Annotated Specification Go注释规范328df636c5f3e0875bc71a7eadf5a4a5084e0b13

    a hexbytevaluecontains two hexadecimal digits.(note: this differs from c but issimpler.)it is erroneous for anoctalbytevalue to represent a value larger than 255. (by construction, a hexbytevalue cannot.)a unicodevalue takes one of fourforms: 1. the utf-8 encoding of a unicode code point. ...
  • The Go Annotated Specification Go注释规范18c5b488a3b2e218c0e0cf2a7d4820d9da93a554

    a hexbytevaluecontains two hexadecimal digits.(note: this differs from c but issimpler.)it is erroneous for anoctalbytevalue to represent a value larger than 255. (by construction, a hexbytevalue cannot.)a unicodevalue takes one of fourforms: 1. the utf-8 encoding of a unicode code point. ...
  • 聊聊loki的Query

    statresult.log(level.debug(log)) status := 200 if err ! = nil { status = 500 if errors.is(err, errparse) ||errors.is(err, errpipeline) || errors.is(err, errlimit) { status = 400 } } ifq.record { recordmetrics(ctx, q.params, status, statresult) } returnresult{ data: data, statistics: statresult...
  • 聊聊cortex的Distributor

    dedupedsamples.withlabelvalues(userid, cluster).add(float64(numsamples))return nil,httpgrpc.errorf(http.statusaccepted, err.error()) } iferrors.is(err, toomanyclusterserror{}){ validation.discardedsamples.withlabelvalues(validation.toomanyhaclusters,userid).add(float64(numsamples)) return nil...
  • Redis(二):命令集构建及关键属性源码解析

    * c_ok or c_err * int aof_last_write_errno; * valid if aof_last_write_status is err * int aof_load_truncated; * dont stop on unexpected aof eof...&& server.lastbgsave_status == c_err) || server.aof_last_write_status ==c_err) && server.masterhost == null &&(c->cmd->flags & cmd_write || c->...
  • Go进阶笔记关于Error

    很多人对于go的error比较吐槽,说代码中总是会有大量的如下代码:if err ! = nil { ...} 其实很多时候是使用的姿势不对,或者说,对于error的用法没有完全理解,这里整理一下关于go中的error 。 关于源码中的error先看一下go源码中gosrcbuiltinbuiltin.go对于error的定义:the error built-in interface type is the ...
  • 解读Promise原理,手动实现一个Promise~

    { callback(null, randomnumber) } else { callback(new error(bad luck...)) } },1000)} 异步方法调用basicasyncfunc((err, result) => { if (err){ console.log(`the reason fail is: ${err}`) return }console.log(`success get result: ${result}`)}) 按照 promise 的规范定义,理想中 promise 的调用方式为...
  • 【云+社区年度征文】深入浅出 Gin 生命周期

    http is used. listenandserve always returns a non-nil error. after shutdown orclose,the returned error is errserverclosed.func (srv *server) listenandserve()error { if srv.shuttingdown() { return errserverclosed } addr := srv.addr if addr == { addr = :http } ln, err := net.listen(tcp, addr) ...
  • 聊聊golang的error增强

    序本文主要研究一下golang的error增强errors in go1.13golang的1.13版本对error进行了增强,主要是引入了unwrap方法增加is和as方法fmt.errorf支持%w来包装error实例packagemain import ( errors fmt os) var demoerr = errors.new(test error stack) https:itnext.iogolang-error-handling-best-practice-a36f47b0b94...
  • uni-app学习笔记-请求接口跨域问题

    uni.hideloading(); }, fail:(err) => { console.log(downloadfile fail, err is:, err) } }) }会发现控制台报错,遇到了跨域的问题了? 那么前端该怎么去解决跨域问题? 想到之前写vue项目的时候,遇到过一次 https:www.jianshu.compb28cd8290b2a 而uniapp是基于vue的,那么解决办法应该也是差不多的解决办法:1...
  • 聊聊golang的error增强

    序本文主要研究一下golang的error增强 oip (96).jpeg errors in go1.13golang的1.13版本对error进行了增强,主要是引入了unwrap方法增加is和as方法fmt.errorf支持%w来包装error实例packagemain import ( errors fmt os) var demoerr = errors.new(test error stack) https:itnext.iogolang-error-handling-best...
  • 在Ionic和Android中上传Blob图片

    local form,err = upload:new(chunk_size) local sha1 = resty_sha1:new() --测试时可以用来verify local file local filelen=0 local filename localosfilepath = conf.const() local i=0 local response if not _.isempty(err) thenngx.log(logger.e(form is: , form, , err is: , err)) end form:set_timeout(0) ...

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