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• 评论了博文 不得不知道的golang之sync.Mutex互斥锁源码分析
  那么 mutexWoken == 0010 到底是表示 被唤醒 还是未被唤醒？文章的 const 处 和 Lock 函数中的解释 有冲突。求解答
• 评论了博文 老司机带你用 Go 语言实现 Paxos 算法
  敢问作者大大源代码是这么写的么？ package main import "sync" func main() { } type Paxos struct { mu sync.Mutex rounds map[int]Round completes [] int } func (px Paxos) newInstance() Round { return Round{} } type PrepareArgs struct { Seq, PNum int } type PrepareReply struct { Err, AcceptPnum int AcceptValue string } type Round struct { proposeNumber, acceptorNumber, state int acceptValue string } const ( OK int = iota Reject Decided ) func (px *Paxos)Prepare(args *PrepareArgs, reply *PrepareReply) error { px.mu.Lock() defer px.mu.Unlock() round, exist := px.rounds[args.Seq] if !exist { //new seq of commit,so need new px.rounds[args.Seq] = px.newInstance() round, _ = px.rounds[args.Seq] reply.Err = OK }else { if args.PNum > round.proposeNumber { reply.Err = OK }else { reply.Err = Reject } } if reply.Err == OK { reply.AcceptPnum = round.acceptorNumber reply.AcceptValue = round.acceptValue round := px.rounds[args.Seq] round.proposeNumber = args.PNum px.rounds[args.Seq] = round }else { //reject } return nil } type AcceptArgs struct { Seq, PNum int Value string } type AcceptReply struct { Err int } func (px Paxos)Accept(args *AcceptArgs, reply *AcceptReply) error { px.mu.Lock() defer px.mu.Unlock() round, exist := px.rounds[args.Seq] if !exist { px.rounds[args.Seq] = px.newInstance() reply.Err = OK }else { if args.PNum >= round.proposeNumber { reply.Err = OK }else { reply.Err = Reject } } if reply.Err == OK { round := px.rounds[args.Seq] round.acceptorNumber = args.PNum round.proposeNumber = args.PNum round.acceptValue = args.Value px.rounds[args.Seq] = round }else { //reject } return nil } type DecideArgs struct { Seq, PNum, Me, Done int Value string } type DecideReply struct { } func (px *Paxos)Decide(args *DecideArgs, reply *DecideReply) error { px.mu.Lock() defer px.mu.Unlock() _, exist := px.rounds[args.Seq] if !exist { px.rounds[args.Seq] = px.newInstance() } round := px.rounds[args.Seq] round.acceptorNumber = args.PNum round.acceptValue = args.Value round.proposeNumber = args.PNum round.state = Decided px.completes[args.Me] = args.Done return nil }
• 评论了博文 Go语言 你可能不知道的十个技巧
  写的是什么鬼 ！ 我日！代码都不全