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/* -*- C++ -*- */
//=============================================================================
/**
* @file Endpoint_Strategy_T.h
*
* $Id$
*
* @author Sumedh Mungee <sumedh@cs.wustl.edu>
* @author Nagarajan Surendran <naga@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_AV_ENDPOINT_STRATEGY_T_H
#define TAO_AV_ENDPOINT_STRATEGY_T_H
#include "ace/pre.h"
#include "Endpoint_Strategy.h"
/**
* @class TAO_AV_Endpoint_Reactive_Strategy
* @brief Reactive strategy base class
*/
template <class T_StreamEndpoint, class T_VDev , class T_MediaCtrl>
class TAO_AV_Export TAO_AV_Endpoint_Reactive_Strategy
: public TAO_AV_Endpoint_Strategy
{
protected:
// Constructor
/// Constructor
TAO_AV_Endpoint_Reactive_Strategy (void);
/// Destructor.
virtual ~TAO_AV_Endpoint_Reactive_Strategy (void);
/// creates and activates the streamendpoint, vdev, and mediacontrol
virtual int activate (void);
/// activates the stream_endpoint with the POA
virtual int activate_stream_endpoint (ACE_ENV_SINGLE_ARG_DECL) = 0;
/// activates the vdev with the POA
virtual int activate_vdev (ACE_ENV_SINGLE_ARG_DECL);
/// activates the media controller with the POA
virtual int activate_mediactrl (ACE_ENV_SINGLE_ARG_DECL);
/// Bridge method to create a vdev, a la Acceptor. Applications
/// can override this
virtual int make_vdev (T_VDev *&vdev);
/// Bridge method to create a stream_endpoint, a la Acceptor. Applications
/// can override this
virtual int make_stream_endpoint (T_StreamEndpoint *&stream_endpoint);
/// Bridge method to create a media_ctrl, a la Acceptor. Applications
/// can override this
virtual int make_mediactrl (T_MediaCtrl *&media_ctrl);
char* activate_with_poa (PortableServer::Servant servant ACE_ENV_ARG_DECL);
CORBA::ORB_var orb_;
PortableServer::POA_var poa_;
CORBA::Object_var media_ctrl_obj_;
T_StreamEndpoint *stream_endpoint_a_servant_;
T_StreamEndpoint *stream_endpoint_b_servant_;
T_VDev *vdev_servant_;
T_MediaCtrl *media_ctrl_servant_;
};
// ----------------------------------------------------------------------
/**
* @class TAO_AV_Endpoint_Reactive_Strategy_A
* @brief Reactive strategy
*/
template <class T_StreamEndpoint, class T_VDev , class T_MediaCtrl>
class TAO_AV_Export TAO_AV_Endpoint_Reactive_Strategy_A
: public TAO_AV_Endpoint_Reactive_Strategy<T_StreamEndpoint, T_VDev , T_MediaCtrl>
{
public:
TAO_AV_Endpoint_Reactive_Strategy_A (void);
/// Constructor
int init (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa);
/// Destructor.
virtual ~TAO_AV_Endpoint_Reactive_Strategy_A (void);
/// Overrides the base class stream_endpoint activator, to activate
/// an "A" type endpoint
virtual int activate_stream_endpoint (ACE_ENV_SINGLE_ARG_DECL);
/// Called by the MMDevice, when it needs to create an A type endpoint
virtual int create_A (AVStreams::StreamEndPoint_A_ptr &stream_endpoint,
AVStreams::VDev_ptr &vdev
ACE_ENV_ARG_DECL);
};
// ----------------------------------------------------------------------
/**
* @class TAO_AV_Endpoint_Reactive_Strategy_B
* @brief Reactive strategy
*/
template <class T_StreamEndpoint, class T_Vdev , class T_MediaCtrl>
class TAO_AV_Export TAO_AV_Endpoint_Reactive_Strategy_B
: public TAO_AV_Endpoint_Reactive_Strategy <T_StreamEndpoint, T_Vdev, T_MediaCtrl>
{
public:
/// Constructor
TAO_AV_Endpoint_Reactive_Strategy_B (void);
/// Destructor.
virtual ~TAO_AV_Endpoint_Reactive_Strategy_B (void);
int init (CORBA::ORB_ptr orb, PortableServer::POA_ptr poa);
/// Overrides the base class stream_endpoint activator, to activate
/// a "B" type endpoint
virtual int activate_stream_endpoint (ACE_ENV_SINGLE_ARG_DECL);
/// Called by the MMDevice, when it needs to create a B type endpoint
virtual int create_B (AVStreams::StreamEndPoint_B_ptr &stream_endpoint,
AVStreams::VDev_ptr &vdev
ACE_ENV_ARG_DECL);
};
// ----------------------------------------------------------------------
/**
* @class TAO_AV_Child_Process
*
* @brief Helper class for the child process created in
* TAO_AV_Endpoint_Process_Strategy
*/
template <class T_StreamEndpoint, class T_VDev , class T_MediaCtrl>
class TAO_AV_Export TAO_AV_Child_Process
{
public:
/// Constructor
TAO_AV_Child_Process ();
/// Destructor
virtual ~TAO_AV_Child_Process ();
/// Initializes the ORB, creates and activates the
/// T_StreamEndpoint, T_VDev, T_MediaCtrl in the POA
int init (int argc, char **argv, CORBA::ORB_ptr orb, PortableServer::POA_ptr poa);
/// runs the ORB event loop
int run (ACE_Time_Value *tv = 0);
protected:
/**
* Creates the objects and inserts them into the Naming
* Service, so the parent can pick the IOR's and
* return them to the client
*/
int activate_objects (int argc,
char **argv
ACE_ENV_ARG_DECL);
///activate the servant with the poa
char* activate_with_poa (PortableServer::Servant servant ACE_ENV_ARG_DECL);
/// Removes the vdev and streamendpoint names from the naming service.
int unbind_names (void);
/// Binds to the naming service
int bind_to_naming_service (ACE_ENV_SINGLE_ARG_DECL);
/// Registers vdev with the naming service
int register_vdev (ACE_ENV_SINGLE_ARG_DECL);
/// Registers stream_endpoint with the naming service
int register_stream_endpoint (ACE_ENV_SINGLE_ARG_DECL);
/// Releases the semaphore on which the parent is waiting on
int release_semaphore ();
/// Bridge method to create a vdev, a la Acceptor. Applications
/// can override this
virtual int make_vdev (T_VDev *&vdev);
/// Bridge method to create a stream_endpoint, a la Acceptor. Applications
/// can override this
virtual int make_stream_endpoint (T_StreamEndpoint *&stream_endpoint);
/// Bridge method to create a media_ctrl, a la Acceptor. Applications
/// can override this
virtual int make_mediactrl (T_MediaCtrl *&media_ctrl);
/// The root Naming Context of the TAO naming service
CosNaming::NamingContext_var naming_context_;
/// Name of the vdev
CosNaming::Name vdev_name_;
/// Name of the stream_endpoint
CosNaming::Name stream_endpoint_name_;
/// The stream endpoint member
T_StreamEndpoint *stream_endpoint_;
/// The virtual device
T_VDev *vdev_;
/// Virtual device CORBA object reference
CORBA::Object_var vdev_obj_;
/// Media controller
T_MediaCtrl *media_ctrl_;
// Media controller CORBA object reference
CORBA::Object_var media_ctrl_obj_;
/// pid of this process
pid_t pid_;
/// Name of the host.
char host_[MAXHOSTNAMELEN];
CORBA::ORB_ptr orb_;
PortableServer::POA_ptr poa_;
};
// ----------------------------------------------------------------------
/**
* @class TAO_AV_Child_Process_A
* @brief Helper class for the child process created in TAO_AV_Child_Process
*/
template <class T_StreamEndpoint, class T_VDev , class T_MediaCtrl>
class TAO_AV_Export TAO_AV_Child_Process_A
: public TAO_AV_Child_Process <T_StreamEndpoint, T_VDev, T_MediaCtrl>
{
public:
/// Constructor.
TAO_AV_Child_Process_A (void);
/// Destructor.
virtual ~TAO_AV_Child_Process_A (void);
};
// ----------------------------------------------------------------------
/**
* @class TAO_AV_Child_Process_B
* @brief Helper class for the child process created in TAO_AV_Child_Process
*/
template <class T_StreamEndpoint, class T_VDev , class T_MediaCtrl>
class TAO_AV_Export TAO_AV_Child_Process_B
: public TAO_AV_Child_Process <T_StreamEndpoint, T_VDev, T_MediaCtrl>
{
public:
/// Constructor.
TAO_AV_Child_Process_B (void);
/// Destructor.
virtual ~TAO_AV_Child_Process_B (void);
};
#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
#include "Endpoint_Strategy_T.cpp"
#endif /*ACE_TEMPLATES_REQUIRE_SOURCE */
#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
#pragma implementation ("Endpoint_Strategy_T.cpp")
#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
#include "ace/post.h"
#endif /* TAO_AV_ENDPOINT_STRATEGY_T_H */
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