forked from akaspin/bar
/
server.go
49 lines (40 loc) · 821 Bytes
/
server.go
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package server
import "golang.org/x/net/context"
type Server interface {
Start() (err error)
Stop() (err error)
}
type CompositeServer struct {
ctx context.Context
cancel context.CancelFunc
servers []Server
}
func NewCompositeServer(ctx context.Context, servers ...Server) (res *CompositeServer) {
res = &CompositeServer{servers: servers}
res.ctx, res.cancel = context.WithCancel(ctx)
return
}
func (s *CompositeServer) Start() (err error) {
errChan := make(chan error, len(s.servers))
for _, srv := range s.servers {
go func(srv Server) {
errChan <- srv.Start()
}(srv)
}
defer s.cancel()
loop:
for {
select {
case <-s.ctx.Done():
break loop
case err = <-errChan:
s.cancel()
break loop
}
}
return
}
func (s *CompositeServer) Stop() (err error) {
s.cancel()
return
}