()
| 67 | } |
| 68 | |
| 69 | func (s *Server) runDNSServer() { |
| 70 | shouldRun := false |
| 71 | address := "" |
| 72 | |
| 73 | for cmd := range s.cmd { |
| 74 | switch cmd.cmd { |
| 75 | case serverCmdStart: |
| 76 | if shouldRun { |
| 77 | continue |
| 78 | } |
| 79 | |
| 80 | shouldRun = true |
| 81 | address = cmd.address |
| 82 | s.mu.Lock() |
| 83 | err := s.start(cmd.address) |
| 84 | if err != nil { |
| 85 | // Run in new goroutine to avoid deadlock. |
| 86 | go s.handleErr(err) |
| 87 | } |
| 88 | |
| 89 | s.mu.Unlock() |
| 90 | case serverCmdRestart: |
| 91 | s.mu.Lock() |
| 92 | // don't start if the server shouldn't run or is already running (s.address is set when the server starts) |
| 93 | if !shouldRun || s.address != "" { |
| 94 | s.mu.Unlock() |
| 95 | continue |
| 96 | } |
| 97 | |
| 98 | err := s.start(address) |
| 99 | if err != nil { |
| 100 | // Run in new goroutine to avoid deadlock. |
| 101 | go s.handleErr(err) |
| 102 | } |
| 103 | |
| 104 | s.mu.Unlock() |
| 105 | case serverCmdStop: |
| 106 | shouldRun = false |
| 107 | s.mu.Lock() |
| 108 | s.stop() |
| 109 | s.mu.Unlock() |
| 110 | case serverCmdReconfigure: |
| 111 | s.mu.Lock() |
| 112 | s.stop() |
| 113 | |
| 114 | if cmd.address == "" { |
| 115 | shouldRun = false |
| 116 | } else { |
| 117 | shouldRun = true |
| 118 | address = cmd.address |
| 119 | err := s.start(cmd.address) |
| 120 | if err != nil { |
| 121 | // Run in new goroutine to avoid deadlock. |
| 122 | go s.handleErr(err) |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | s.mu.Unlock() |
no test coverage detected