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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// ORBSVCS AVStreams
//
// = FILENAME
// UDP.h
//
// = AUTHOR
// Nagarajan Surendran <naga@cs.wustl.edu>
//
//
// ============================================================================
#ifndef TAO_AV_UDP_H
#define TAO_AV_UDP_H
#include "ace/OS.h"
#include "Protocol_Factory.h"
class TAO_ORBSVCS_Export TAO_AV_UDP_Factory : public TAO_AV_Transport_Factory
{
public:
TAO_AV_UDP_Factory (void);
virtual ~TAO_AV_UDP_Factory (void);
virtual int init (int argc, char *argv[]);
// Initialization hook.
virtual int match_protocol (const char *protocol_string);
virtual TAO_AV_Acceptor *make_acceptor (void);
virtual TAO_AV_Connector *make_connector (void);
};
class TAO_AV_UDP_Flow_Handler;
class TAO_AV_UDP_Transport
:public TAO_AV_Transport
{
// = TITLE
// A transport abstraction for udp sockets.
//
// = DESCRIPTION
// Uses the ACE_SOCK_Dgram to send the data.
public:
TAO_AV_UDP_Transport (void);
TAO_AV_UDP_Transport (TAO_AV_UDP_Flow_Handler *handler);
virtual ~TAO_AV_UDP_Transport (void);
virtual int open (ACE_Addr *addr);
virtual int close (void);
virtual int mtu (void);
virtual ACE_Addr *get_peer_addr (void);
virtual int set_remote_address (const ACE_INET_Addr &address);
virtual ssize_t send (const ACE_Message_Block *mblk,
ACE_Time_Value *s = 0);
// Write the complete Message_Block chain to the connection.
virtual ssize_t send (const char *buf,
size_t len,
ACE_Time_Value *s = 0);
// Write the contents of the buffer of length len to the connection.
virtual ssize_t send (const iovec *iov,
int iovcnt,
ACE_Time_Value *s = 0);
// Write the contents of iovcnt iovec's to the connection.
virtual ssize_t recv (char *buf,
size_t len,
ACE_Time_Value *s = 0);
// Read len bytes from into buf.
virtual ssize_t recv (char *buf,
size_t len,
int flags,
ACE_Time_Value *s = 0);
// Read len bytes from into buf using flags.
virtual ssize_t recv (iovec *iov,
int iovcnt,
ACE_Time_Value *s = 0);
// Read received data into the iovec buffers.
protected:
TAO_AV_UDP_Flow_Handler *handler_;
ACE_Addr *addr_;
ACE_INET_Addr peer_addr_;
};
class TAO_AV_UDP_Flow_Handler
:public virtual TAO_AV_Flow_Handler,
public virtual ACE_Event_Handler
{
public:
TAO_AV_UDP_Flow_Handler (void);
//Ctor
~TAO_AV_UDP_Flow_Handler (void);
// Dtor
int open (ACE_Addr &address);
virtual TAO_AV_Transport *transport (void);
virtual int set_remote_address (ACE_Addr *address);
virtual ACE_HANDLE get_handle (void) const;
virtual int handle_input (ACE_HANDLE fd);
virtual int handle_timeout (const ACE_Time_Value &tv, const void *arg = 0);
const ACE_SOCK_Dgram *get_socket (void) const;
virtual ACE_Event_Handler* event_handler (void){ return this; }
protected:
TAO_AV_Core *av_core_;
ACE_INET_Addr peer_addr_;
ACE_SOCK_Dgram sock_dgram_;
};
class TAO_AV_UDP_Acceptor
:public TAO_AV_Acceptor
{
public:
TAO_AV_UDP_Acceptor (void);
virtual ~TAO_AV_UDP_Acceptor (void);
virtual int open (TAO_Base_StreamEndPoint *endpoint,
TAO_AV_Core *av_core,
TAO_FlowSpec_Entry *entry,
TAO_AV_Flow_Protocol_Factory *factory);
virtual int open_default (TAO_Base_StreamEndPoint *endpoint,
TAO_AV_Core *av_core,
TAO_FlowSpec_Entry *entry,
TAO_AV_Flow_Protocol_Factory *factory);
virtual int open_i (ACE_INET_Addr *address);
virtual int close (void);
virtual int activate_svc_handler (TAO_AV_Flow_Handler *handler);
protected:
TAO_Base_StreamEndPoint *endpoint_;
TAO_FlowSpec_Entry *entry_;
TAO_AV_Flow_Protocol_Factory *flow_protocol_factory_;
};
class TAO_AV_UDP_Connector
:public TAO_AV_Connector
{
public:
TAO_AV_UDP_Connector (void);
~TAO_AV_UDP_Connector (void);
virtual int open (TAO_Base_StreamEndPoint *endpoint,
TAO_AV_Core *av_core,
TAO_AV_Flow_Protocol_Factory *factory);
virtual int connect (TAO_FlowSpec_Entry *entry,
TAO_AV_Transport *&transport);
virtual int activate_svc_handler (TAO_AV_Flow_Handler *handler);
virtual int close (void);
protected:
TAO_Base_StreamEndPoint *endpoint_;
TAO_AV_Core *av_core_;
TAO_FlowSpec_Entry *entry_;
TAO_AV_Flow_Protocol_Factory *flow_protocol_factory_;
};
class TAO_ORBSVCS_Export TAO_AV_UDP_Object : public TAO_AV_Protocol_Object
{
public:
TAO_AV_UDP_Object (TAO_AV_Callback *callback,
TAO_AV_Transport *transport = 0);
virtual ~TAO_AV_UDP_Object (void);
// Dtor
virtual int handle_input (void);
virtual int send_frame (ACE_Message_Block *frame,
TAO_AV_frame_info *frame_info = 0);
// send a data frame.
virtual int send_frame (const iovec *iov,
int iovcnt,
TAO_AV_frame_info *frame_info = 0);
virtual int destroy (void);
// end the stream.
};
class TAO_AV_UDP_Flow_Factory : public TAO_AV_Flow_Protocol_Factory
{
public:
TAO_AV_UDP_Flow_Factory (void);
virtual ~TAO_AV_UDP_Flow_Factory (void);
virtual int init (int argc, char *argv[]);
// Initialization hook.
virtual int match_protocol (const char *flow_string);
TAO_AV_Protocol_Object* make_protocol_object (TAO_FlowSpec_Entry *entry,
TAO_Base_StreamEndPoint *endpoint,
TAO_AV_Flow_Handler *handler,
TAO_AV_Transport *transport);
};
ACE_STATIC_SVC_DECLARE (TAO_AV_UDP_Flow_Factory)
ACE_FACTORY_DECLARE (TAO_ORBSVCS, TAO_AV_UDP_Flow_Factory)
ACE_STATIC_SVC_DECLARE (TAO_AV_UDP_Factory)
ACE_FACTORY_DECLARE (TAO_ORBSVCS, TAO_AV_UDP_Factory)
#if defined(__ACE_INLINE__)
#include "UDP.i"
#endif /* __ACE_INLINE__ */
#endif /* TAO_AV_UDP_H */
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