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nnet/middleware/heartbeat_ws.go

79 lines
1.7 KiB
Go

package middleware
import (
"git.noahlan.cn/noahlan/nnet"
"git.noahlan.cn/noahlan/nnet/conn"
"git.noahlan.cn/noahlan/nnet/event"
"git.noahlan.cn/noahlan/nnet/packet"
rt "git.noahlan.cn/noahlan/nnet/router"
"git.noahlan.cn/noahlan/ntool/nlog"
"sync/atomic"
"time"
)
type (
HeartbeatWsMiddleware struct {
lastAt int64
interval time.Duration
hbdFn WsHeartbeatFn
}
WsHeartbeatFn func(conn *conn.WSConn) error
)
func WithHeartbeatWS(interval time.Duration, hbdFn WsHeartbeatFn) nnet.RunOption {
m := &HeartbeatWsMiddleware{
lastAt: time.Now().Unix(),
interval: interval,
hbdFn: hbdFn,
}
if hbdFn == nil {
nlog.Error("dataFn must not be nil")
panic("dataFn must not be nil")
}
var startFn event.OnConnectedFn = func(nc *conn.Connection) {
ticker := time.NewTicker(m.interval)
defer func() {
ticker.Stop()
}()
for {
select {
case <-ticker.C:
if nc.Type() != conn.ConnTypeWS {
break
}
//deadline := time.Now().Add(-2 * m.interval).Unix()
//if atomic.LoadInt64(&m.lastAt) < deadline {
// nlog.Errorf("Heartbeat timeout, LastTime=%d, Deadline=%d", atomic.LoadInt64(&m.lastAt), deadline)
// break
//}
err := m.hbdFn(nc.WsConn())
if err != nil {
nlog.Errorf("Heartbeat err: %v", err)
return
}
}
}
}
return func(ngin *nnet.Engine) {
ngin.EventManager().RegisterEvent(event.EvtOnConnected, startFn)
ngin.Use(func(next rt.HandlerFunc) rt.HandlerFunc {
return func(conn *conn.Connection, pkg packet.IPacket) {
m.handle(conn, pkg)
next(conn, pkg)
}
})
}
}
func (m *HeartbeatWsMiddleware) handle(_ *conn.Connection, _ packet.IPacket) {
atomic.StoreInt64(&m.lastAt, time.Now().Unix())
}