go-eventbus事件总线

地址: github.com/lockp111/go-eventbus

参考go-observable, 但是那个代码有问题, 会因为map同时读写出现crash, 我修复之后提交给作者也一直不理我, 于是就自己fork一份自用, 后来觉得反射调用的损耗还是比较大的, 而且使用func如果不注意, 有可能出现两个相同的func, 于是改成interface, Benchmark显示提升非常大

Usage

go get -u github.com/lockp111/go-eventbus

New()

Create a new bus struct reference

bus := eventbus.New()

On(topic string, e ...Event)

Subscribe event

type ready struct{
}

func (e ready) Dispatch(msg interface{}){
    fmt.Println("I am ready!")
}

bus.On("ready", &ready{})

You can also subscribe multiple events for example:

type run struct{
}

func (e run) Dispatch(msg interface{}){
    fmt.Println("I am run!")
}

bus.On("ready", &ready{}, &ready{}).On("run", &run{})

Off(topic string, e ...Event)

Unsubscribe event

e := &ready{}
bus.On("ready", e)
bus.Off("ready", e)

You can also unsubscribe multiple events for example:

e1 := &ready{}
e2 := &ready{}
bus.On("ready", e1, e2)
bus.Off("ready", e1, e2)

You can unsubscribe all events for example:

bus.On("ready", &ready{}, &ready{})
bus.Off("ready")

You can unsubscribe all topics for example:

bus.On("ready", &ready{}, &ready{})
bus.On("run", &run{})
bus.Off(ALL)

Trigger(topic string, msg ...interface{})

Dispatch events

bus.Trigger("ready")

You can also dispatch multiple events for example:

bus.Trigger("ready", &struct{"1"}, &struct{"2"})

You can also dispatch all events for example:

bus.Trigger(ALL, &struct{"1"})