src/ipc/StartListening.h

   1 /*
   2  * $Id$
   3  *
   4  * DEBUG: section 54    Interprocess Communication
   5  *
   6  */
   7
   8 #ifndef SQUID_IPC_START_LISTENING_H
   9 #define SQUID_IPC_START_LISTENING_H
  10
  11 #include "config.h"
  12 #include "base/AsyncCall.h"
  13 #include "base/Subscription.h"
  14 #include "comm/forward.h"
  15 #include "ip/forward.h"
  16 #include "ipc/FdNotes.h"
  17
  18 #if HAVE_IOSFWD
  19 #include <iosfwd>
  20 #endif
  21
  22 namespace Ipc
  23 {
  24
  25 /// common API for all StartListening() callbacks
  26 class StartListeningCb
  27 {
  28 public:
  29     StartListeningCb();
  30     virtual ~StartListeningCb();
  31
  32     /// starts printing arguments, return os
  33     std::ostream &startPrint(std::ostream &os) const;
  34
  35 public:
  36     Comm::ConnectionPointer conn; ///< opened listening socket
  37     int errNo; ///< errno value from the comm_open_listener() call
  38     Subscription::Pointer handlerSubscription; ///< The subscription we will pass on to the ConnAcceptor
  39 };
  40
  41 /// Depending on whether SMP is on, either ask Coordinator to send us
  42 /// the listening FD or start a connection acceptor directly.
  43 extern void StartListening(int sock_type, int proto, const Comm::ConnectionPointer &listenConn,
  44                            FdNoteId fdNote, AsyncCall::Pointer &callback, const Subscription::Pointer &handlerSub);
  45
  46 } // namespace Ipc;
  47
  48
  49 #endif /* SQUID_IPC_START_LISTENING_H */