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84 lines
1.5 KiB
84 lines
1.5 KiB
// Copyright 2022 ROC. All rights reserved.
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// Use of this source code is governed by a MIT style
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// license that can be found in the LICENSE file.
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package service
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import (
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"context"
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"net/http"
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"sync"
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"github.com/gin-gonic/gin"
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)
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var (
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httpServers = make(map[string]*httpServer)
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)
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const (
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httpServerInitilized uint8 = iota + 1
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httpServerStarted
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httpServerStoped
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)
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// httpServer wraper for gin.engine and http.Server
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type httpServer struct {
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sync.RWMutex
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e *gin.Engine
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server *http.Server
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serverStatus uint8
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}
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func (s *httpServer) status() uint8 {
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s.RLock()
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defer s.RUnlock()
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return s.serverStatus
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}
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func (s *httpServer) start() error {
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s.Lock()
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if s.serverStatus == httpServerStarted || s.serverStatus == httpServerStoped {
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return nil
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}
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oldStatus := s.serverStatus
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s.serverStatus = httpServerStarted
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s.Unlock()
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if err := s.server.ListenAndServe(); err != nil {
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s.Lock()
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s.serverStatus = oldStatus
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s.Unlock()
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return err
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}
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return nil
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}
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func (s *httpServer) stop() error {
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s.Lock()
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defer s.Unlock()
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if s.serverStatus == httpServerStoped || s.serverStatus == httpServerInitilized {
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return nil
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}
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if err := s.server.Shutdown(context.Background()); err != nil {
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return err
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}
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s.serverStatus = httpServerStoped
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return nil
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}
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func httpServerFrom(addr string, newServer func() *httpServer) *httpServer {
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s, exist := httpServers[addr]
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if exist {
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return s
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}
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s = newServer()
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s.serverStatus = httpServerInitilized
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httpServers[addr] = s
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return s
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}
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