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/* -*- C++ -*- */
//=============================================================================
/**
* @file TCP.h
*
* $Id$
*
* @author Nagarajan Surendran <naga@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_AV_TCP_H
#define TAO_AV_TCP_H
#include "ace/pre.h"
#include "ace/OS.h"
#include "Protocol_Factory.h"
#include "FlowSpec_Entry.h"
/**
* @class TAO_AV_TCP_Factory
* @brief
*/
class TAO_AV_Export TAO_AV_TCP_Factory : public TAO_AV_Transport_Factory
{
public:
/// Initialization hook.
TAO_AV_TCP_Factory (void);
virtual ~TAO_AV_TCP_Factory (void);
virtual int init (int argc, char *argv[]);
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_TCP_Flow_Handler;
/**
* @class TAO_AV_TCP_Transport
* @brief A transport abstraction for socket streams.
* Uses the ACE_SOCK_Stream to send the data.
*/
class TAO_AV_TCP_Transport
:public TAO_AV_Transport
{
public:
TAO_AV_TCP_Transport (void);
TAO_AV_TCP_Transport (TAO_AV_TCP_Flow_Handler *handler);
virtual ~TAO_AV_TCP_Transport (void);
virtual int open (ACE_Addr *address);
virtual int close (void);
virtual int mtu (void);
virtual ACE_Addr *get_peer_addr (void);
/// Write the complete Message_Block chain to the connection.
virtual ssize_t send (const ACE_Message_Block *mblk,
ACE_Time_Value *s = 0);
/// Write the contents of the buffer of length len to the connection.
virtual ssize_t send (const char *buf,
size_t len,
ACE_Time_Value *s = 0);
/// Write the contents of iovcnt iovec's to the connection.
virtual ssize_t send (const iovec *iov,
int iovcnt,
ACE_Time_Value *s = 0);
/// Read len bytes from into buf.
virtual ssize_t recv (char *buf,
size_t len,
ACE_Time_Value *s = 0);
/// Read len bytes from into buf using flags.
virtual ssize_t recv (char *buf,
size_t len,
int flags,
ACE_Time_Value *s = 0);
/// Read received data into the iovec buffers.
virtual ssize_t recv (iovec *iov,
int iovcnt,
ACE_Time_Value *s = 0);
protected:
TAO_AV_TCP_Flow_Handler *handler_;
};
/**
* @class TAO_AV_TCP_Flow_Handler
* @brief
*/
class TAO_AV_TCP_Flow_Handler
:public virtual TAO_AV_Flow_Handler,
public ACE_Svc_Handler <ACE_SOCK_STREAM, ACE_NULL_SYNCH>
{
public:
TAO_AV_TCP_Flow_Handler (TAO_AV_Callback *callback = 0);
virtual TAO_AV_Transport *transport (void);
virtual int open (void * = 0);
virtual int handle_input (ACE_HANDLE fd);
virtual int handle_timeout (const ACE_Time_Value &tv, const void *arg = 0);
virtual ACE_Event_Handler* event_handler (void){ return this; }
protected:
TAO_AV_Core *av_core_;
};
class TAO_AV_TCP_Acceptor;
/**
* @class TAO_AV_TCP_Base_Acceptor
* @brief
*/
class TAO_AV_TCP_Base_Acceptor :public ACE_Acceptor <TAO_AV_TCP_Flow_Handler,ACE_SOCK_ACCEPTOR>
{
public:
virtual int open (TAO_AV_TCP_Acceptor *acceptor,
ACE_Reactor *reactor,
const ACE_INET_Addr &local_addr,
TAO_FlowSpec_Entry *entry);
virtual int make_svc_handler (TAO_AV_TCP_Flow_Handler *& handler);
protected:
TAO_AV_TCP_Acceptor *acceptor_;
ACE_Reactor *reactor_;
TAO_FlowSpec_Entry *entry_;
};
/**
* @class TAO_AV_TCP_Acceptor
* @brief
*/
class TAO_AV_TCP_Acceptor :public TAO_AV_Acceptor
{
public:
TAO_AV_TCP_Acceptor (void);
virtual ~TAO_AV_TCP_Acceptor (void);
virtual int open (TAO_Base_StreamEndPoint *endpoint,
TAO_AV_Core *av_core,
TAO_FlowSpec_Entry *entry,
TAO_AV_Flow_Protocol_Factory *factory,
TAO_AV_Core::Flow_Component flow_component =
TAO_AV_Core::TAO_AV_DATA);
virtual int open_default (TAO_Base_StreamEndPoint *endpoint,
TAO_AV_Core *av_core,
TAO_FlowSpec_Entry *entry,
TAO_AV_Flow_Protocol_Factory *factory,
TAO_AV_Core::Flow_Component flow_component =
TAO_AV_Core::TAO_AV_DATA);
virtual int close (void);
virtual int make_svc_handler (TAO_AV_TCP_Flow_Handler *&handler);
protected:
TAO_AV_TCP_Base_Acceptor acceptor_;
TAO_FlowSpec_Entry *entry_;
TAO_Base_StreamEndPoint *endpoint_;
TAO_AV_Flow_Protocol_Factory *flow_protocol_factory_;
};
class TAO_AV_TCP_Connector;
/**
* @class TAO_AV_Base_Connector
* @brief
*/
class TAO_AV_TCP_Base_Connector : public ACE_Connector <TAO_AV_TCP_Flow_Handler,ACE_SOCK_CONNECTOR>
{
public:
// To avoid warnings of open and connect hiding the base class functions these have to renamed.
int connector_open (TAO_AV_TCP_Connector *connector,
ACE_Reactor *reactor);
int connector_connect (TAO_AV_TCP_Flow_Handler *&handler,
const ACE_INET_Addr &remote_addr);
virtual int make_svc_handler (TAO_AV_TCP_Flow_Handler *& handler);
protected:
TAO_AV_TCP_Connector *connector_;
ACE_Reactor *reactor_;
};
/**
* @class TAO_AV_TCP_Connector
* @brief
*/
class TAO_AV_TCP_Connector : public TAO_AV_Connector
{
public:
TAO_AV_TCP_Connector (void);
virtual ~TAO_AV_TCP_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,
TAO_AV_Core::Flow_Component flow_comp =
TAO_AV_Core::TAO_AV_DATA);
virtual int close (void);
virtual int make_svc_handler (TAO_AV_TCP_Flow_Handler *&handler);
protected:
TAO_AV_Core *av_core_;
TAO_AV_TCP_Base_Connector connector_;
TAO_Base_StreamEndPoint *endpoint_;
TAO_FlowSpec_Entry *entry_;
TAO_AV_Flow_Protocol_Factory *flow_protocol_factory_;
};
/**
* @class TAO_AV_TCP_Object
* @brief TAO_AV_Protocol_Object for Transmission Control Protocol (TCP)
*/
class TAO_AV_Export TAO_AV_TCP_Object : public TAO_AV_Protocol_Object
{
public:
TAO_AV_TCP_Object (TAO_AV_Callback *callback,
TAO_AV_Transport *transport = 0);
/// Dtor
virtual ~TAO_AV_TCP_Object (void);
virtual int handle_input (void);
/// send a data frame.
virtual int send_frame (ACE_Message_Block *frame,
TAO_AV_frame_info *frame_info = 0);
virtual int send_frame (const iovec *iov,
int iovcnt,
TAO_AV_frame_info *frame_info = 0);
virtual int send_frame (const char*buf,
size_t len);
/// end the stream.
virtual int destroy (void);
private:
/// Pre-allocated memory to receive the data...
ACE_Message_Block frame_;
};
/**
* @class TAO_AV_TCP_Flow_Factory
* @brief
*/
class TAO_AV_TCP_Flow_Factory : public TAO_AV_Flow_Protocol_Factory
{
public:
/// Initialization hook.
TAO_AV_TCP_Flow_Factory (void);
virtual ~TAO_AV_TCP_Flow_Factory (void);
virtual int init (int argc, char *argv[]);
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_TCP_Flow_Factory)
ACE_FACTORY_DECLARE (TAO_AV, TAO_AV_TCP_Flow_Factory)
ACE_STATIC_SVC_DECLARE (TAO_AV_TCP_Factory)
ACE_FACTORY_DECLARE (TAO_AV, TAO_AV_TCP_Factory)
#include "ace/post.h"
#endif /* TAO_AV_TCP_H */
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