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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// apps
//
// = FILENAME
// Event_Channel.h
//
// = AUTHOR
// Doug Schmidt
//
// ============================================================================
#if !defined (ACE_EVENT_CHANNEL)
#define ACE_EVENT_CHANNEL
#include "Proxy_Handler_Connector.h"
class ACE_Svc_Export ACE_Event_Channel_Options
// = TITLE
// Maintains the options for an <ACE_Event_Channel>.
{
public:
ACE_Event_Channel_Options (void);
// Initialization.
int performance_window_;
// Number of seconds after connection establishment to report
// throughput.
int blocking_semantics_;
// 0 == blocking connects, ACE_NONBLOCK == non-blocking connects.
int socket_queue_size_;
// Size of the socket queue (0 means "use default").
};
class ACE_Svc_Export ACE_Event_Channel : public ACE_Task<SYNCH_STRATEGY>
// = TITLE
// Define a generic Event_Channel.
//
// = DESCRIPTION
{
public:
// = Initialization and termination methods.
ACE_Event_Channel (void);
~ACE_Event_Channel (void);
virtual int open (void * = 0);
// Open the channel.
virtual int close (u_long = 0);
// Close down the Channel.
// = Proxy management methods.
int initiate_proxy_connection (Proxy_Handler *,
ACE_Synch_Options & = ACE_Synch_Options::synch);
// Initiate the connection of the <Proxy_Handler> to its peer.
int complete_proxy_connection (Proxy_Handler *);
// Complete the initialization of the <Proxy_Handler> once it's
// connected to its Peer.
int reinitiate_proxy_connection (Proxy_Handler *);
// Reinitiate a connection asynchronously when the Peer fails.
int bind_proxy (Proxy_Handler *);
// Bind the <Proxy_Handler> to the <connection_map_>.
int find_proxy (ACE_INT32 conn_id, Proxy_Handler *&);
// Locate the <Proxy_Handler> with <conn_id>.
int subscribe (const Event_Key &event_addr,
Consumer_Dispatch_Set *cds);
// Subscribe the <Consumer_Dispatch_Set> to receive events that
// match <Event_Key>.
// = Event forwarding method.
virtual int put (ACE_Message_Block *mb, ACE_Time_Value * = 0);
// Pass <mb> to the Event Channel so it can forward it to Consumers.
ACE_Event_Channel_Options &options (void);
// Points to the Event_Channel options.
int initiate_connections (void);
// Initiate connections to the peers.
private:
virtual int svc (void);
// Run as an active object.
int parse_args (int argc, char *argv[]);
// Parse the command-line arguments.
virtual int handle_timeout (const ACE_Time_Value &,
const void *arg);
// Perform timer-based performance profiling.
Proxy_Handler_Connector connector_;
// Used to establish the connections actively.
// Proxy_Handler_Acceptor acceptor_;
// Used to establish the connections passively.
// = Make life easier by defining typedefs.
// Note that Proxy_Handler is assumed to the base class of
// SUPPLIER_PROXY and CONSUMER_PROXY.
typedef ACE_Map_Manager<ACE_INT32, Proxy_Handler *, MAP_MUTEX> CONNECTION_MAP;
typedef ACE_Map_Iterator<ACE_INT32, Proxy_Handler *, MAP_MUTEX> CONNECTION_MAP_ITERATOR;
typedef ACE_Map_Entry<ACE_INT32, Proxy_Handler *> CONNECTION_MAP_ENTRY;
CONNECTION_MAP connection_map_;
// Table that maps Connection IDs to Proxy_Handler *'s.
Event_Forwarding_Discriminator efd_;
// Map that associates an event to a set of Consumer_Proxy *'s.
ACE_Event_Channel_Options options_;
// The options for the channel.
};
#endif /* ACE_EVENT_CHANNEL */
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