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server.go
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server.go
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package core
import (
"github.com/fushiliang321/go-core/config/init"
"github.com/fushiliang321/go-core/event"
"github.com/fushiliang321/go-core/exception"
"sync"
"sync/atomic"
)
type (
Server interface {
Start(wg *sync.WaitGroup)
}
serverStartMonitor struct {
isFinish atomic.Bool //是否完成启动
awaitChan chan byte //等待通道
}
)
var (
startOnce sync.Once
awaitStartFinishOnce sync.Once
_serverStartMonitor = &serverStartMonitor{
awaitChan: make(chan byte),
}
)
func init() {
_serverStartMonitor.isFinish.Store(false)
}
func Start() {
defer func() {
exception.Listener("core start", recover())
}()
startOnce.Do(func() {
event.Dispatch(event.NewRegistered(event.BeforeServerStart, nil))
wg := &sync.WaitGroup{}
servers := init.Get()
for _, ser := range servers {
ser.Start(wg)
}
event.Dispatch(event.NewRegistered(event.AfterServerStart, nil))
wg.Wait()
event.Dispatch(event.NewRegistered(event.ServerEnd, nil))
})
}
// 等待所有服务启动完成
func AwaitStartFinish(funs ...func()) {
defer func() {
for _, fun := range funs {
go fun()
}
}()
if _serverStartMonitor.isFinish.Load() {
//已经完成启动
return
}
defer func() {
recover()
}()
awaitStartFinishOnce.Do(func() {
event.Listener(event.Listen{
EventNames: []string{event.AfterServerStart},
Process: func(registered event.Registered) {
//启动完成后把等待通道关闭
_serverStartMonitor.isFinish.Store(true)
close(_serverStartMonitor.awaitChan)
for len(_serverStartMonitor.awaitChan) > 0 {
<-_serverStartMonitor.awaitChan
}
},
})
})
//还没启动完成就等待启动完成
_serverStartMonitor.awaitChan <- 1
}