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event.go
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event.go
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package go_epoll
import "strings"
type EventType uint32
const (
EventRead EventType = 1 << iota
EventWrite
EventClose
EventError
EventET
EventOneShot
)
type Event struct {
Fd int //表示文件描述符
EventType EventType //表示事件类型,可读,可写
}
func (et EventType) String() string {
str := make([]string, 0)
if et&EventRead != 0 {
str = append(str, "read")
}
if et&EventWrite != 0 {
str = append(str, "write")
}
if et&EventClose != 0 {
str = append(str, "close")
}
if et&EventError != 0 {
str = append(str, "error")
}
return strings.Join(str, ",")
}
func (e *Event) IsRead() bool {
if e.EventType&EventRead != 0 {
return true
}
return false
}
func (e *Event) IsWrite() bool {
if e.EventType&EventWrite != 0 {
return true
}
return false
}
func (e *Event) IsClose() bool {
if e.EventType&EventClose != 0 {
return true
}
return false
}
func (e *Event) IsError() bool {
if e.EventType&EventError != 0 {
return true
}
return false
}