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/* -*- C++ -*- */
// $Id$
#if !defined (PEER)
#define PEER
#include "ace/OS.h"
#include "ace/INET_Addr.h"
#include "ace/Message_Block.h"
#include "ace/Svc_Handler.h"
#include "ace/Synch.h"
#include "ace/SOCK_Stream.h"
ACE_SVC_FACTORY_DECLARE (Peer_Acceptor)
// Handle Peer events arriving as events.
class ACE_Svc_Export Peer_Handler : public ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
{
public:
// = Initialization and termination methods.
Peer_Handler (void);
// Initialize the peer.
~Peer_Handler (void);
// Shutdown the Peer.
virtual int open (void * = 0);
// Initialize the handler (called by ACE_Acceptor::handle_input())
virtual int handle_input (ACE_HANDLE);
// Receive and process peer events.
virtual int put (ACE_Message_Block *, ACE_Time_Value *tv = 0);
// Send a event to a gateway (may be queued if necessary).
virtual int handle_output (ACE_HANDLE);
// Finish sending a event when flow control conditions abate.
virtual int handle_timeout (const ACE_Time_Value &,
const void *arg);
// Periodically send events via ACE_Reactor timer mechanism.
virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE,
ACE_Reactor_Mask = ACE_Event_Handler::ALL_EVENTS_MASK);
// Perform object termination.
protected:
typedef ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH> inherited;
// We'll allow up to 16 megabytes to be queued per-output
// channel!!!! This is clearly a policy in search of refinement...
enum { MAX_QUEUE_SIZE = 1024 * 1024 * 16 };
ACE_INT32 proxy_id_;
// Proxy ID of the peer (obtained from gatewayd). For simplicity,
// in this implementation we also use the Proxy ID as the Supplier
// ID. This might change in future releases.
virtual int nonblk_put (ACE_Message_Block *mb);
// Perform a non-blocking put().
virtual int recv (ACE_Message_Block *&);
// Receive an Peer event from gatewayd.
virtual int send (ACE_Message_Block *);
// Send an Peer event to gatewayd.
int xmit_stdin (void);
// Receive a event from stdin and send it to the gateway.
int (Peer_Handler::*do_action_) (void);
// Pointer-to-member-function for the current action to run in this state.
int await_supplier_id (void);
// Action that receives the route id.
int await_events (void);
// Action that receives events.
ACE_Message_Block *msg_frag_;
// Keep track of event fragment to handle non-blocking recv's from gateway.
size_t total_bytes_;
// The total number of bytes sent/received to the gateway.
};
#endif /* PEER */
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