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serve.go
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package netserver
import (
"context"
"fmt"
"net"
)
var ErrServerNotServing = fmt.Errorf("server not serving")
const serveKey = "serve"
func (s *NetServer) Serve(l net.Listener) error {
return s.single(func() error {
return s.RunListener(s.ctx, l)
})
}
func (s *NetServer) ServeTLS(addr, certFile, keyFile string) error {
return s.single(func() error {
return s.RunTLS(s.ctx, addr, certFile, keyFile)
})
}
func (s *NetServer) ServeTCP(addr string) error {
return s.single(func() error {
return s.RunTCP(s.ctx, addr)
})
}
func (s *NetServer) ServeFD(fd int) error {
return s.single(func() error {
return s.RunFD(s.ctx, fd)
})
}
func (s *NetServer) ServeUnix(file string) error {
return s.single(func() error {
return s.RunUnix(s.ctx, file)
})
}
func (s *NetServer) single(f func() error) error {
v, _, _ := s.sfg.Do(serveKey, func() (any, error) {
ctx, cancel := context.WithCancel(context.Background())
s.setCtxCancel(ctx, cancel)
defer func() {
s.setCtxCancel(nil, nil)
}()
return f(), nil
})
return v.(error)
}
// Close 直接返回
func (s *NetServer) Close() error {
_, cancelFunc := s.getCtxCancel()
if cancelFunc == nil {
return ErrServerNotServing
}
s.cancel()
return nil
}
// Shutdown 会一直等到ctx.Done或者Serve函数退出才返回
func (s *NetServer) Shutdown(ctx context.Context) error {
if err := s.Close(); err != nil {
return err
}
if err := pollCheck(ctx, s.noActiveConn, nil); err != nil {
return err
}
return nil
}