golang零碎（一）

今天看了下labrpc模块，学习了相关的golang语法。总结下

map

interface{}，空的可以表示任何类型，类似java的object

struct

new 初始化零值

make map slice channel

func MakeNetwork() *Network {
	rn := &Network{}
	rn.reliable = true
	rn.ends = map[interface{}]*ClientEnd{}
	rn.enabled = map[interface{}]bool{}
	rn.servers = map[interface{}]*Server{}
	rn.connections = map[interface{}](interface{}){}
	return rn
}
上面的函数指定了很多初始化方法

func (rn *Network) ReadEndnameInfo(endname interface{}) (bool, interface{}, *Server, bool) {
	rn.mu.Lock()
	defer rn.mu.Unlock()

	enabled := rn.enabled[endname]
	servername := rn.connections[endname]
	var server *Server
	if servername != nil {
		server = rn.servers[servername]
	}
	reliable := rn.reliable
	return enabled, servername, server, reliable
}

 interface{}表示任何类型

func (rn *Network) IsServerDead(endname interface{}, servername interface{}, server *Server) bool {
	rn.mu.Lock()
	defer rn.mu.Unlock()

	if rn.enabled[endname] == false || rn.servers[servername] != server {
		return true
	}
	return false
}
定义struct的方法