src/snmp/Forwarder.h

   1 /*
   2  * $Id$
   3  *
   4  * DEBUG: section 49    SNMP Interface
   5  *
   6  */
   7
   8 #ifndef SQUID_SNMPX_FORWARDER_H
   9 #define SQUID_SNMPX_FORWARDER_H
  10
  11 #include "ipc/Forwarder.h"
  12 #include "snmp/Pdu.h"
  13 #include "snmp/Session.h"
  14
  15 class CommCloseCbParams;
  16
  17 namespace Snmp
  18 {
  19
  20 /** Forwards a single client SNMP request to Coordinator.
  21  * Waits for an ACK from Coordinator
  22  * Send the data unit with an error response if forwarding fails.
  23  */
  24 class Forwarder: public Ipc::Forwarder
  25 {
  26 public:
  27     Forwarder(const Pdu& aPdu, const Session& aSession, int aFd,
  28               const Ip::Address& anAddress);
  29
  30 protected:
  31     /* Ipc::Forwarder API */
  32     virtual void cleanup(); ///< perform cleanup actions
  33     virtual void handleTimeout();
  34     virtual void handleException(const std::exception& e);
  35
  36 private:
  37     void noteCommClosed(const CommCloseCbParams& params);
  38     void sendError(int error);
  39
  40 private:
  41     int fd; ///< client connection descriptor
  42     AsyncCall::Pointer closer; ///< comm_close handler for the connection
  43
  44     CBDATA_CLASS2(Forwarder);
  45 };
  46
  47 extern void SendResponse(unsigned int requestId, const Pdu& pdu);
  48
  49 } // namespace Snmp
  50
  51 #endif /* SQUID_SNMPX_FORWARDER_H */