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/* -*- c++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// server
//
// = FILENAME
// server.h
//
// = DESCRIPTION
// This defines the Audio/Video Server using TAO'S Audio/Video streaming service.
//
// = AUTHORS
// Sumedh Mungee (sumedh@cs.wustl.edu)
// Nagarajan Surendran (naga@cs.wustl.edu)
//
// ============================================================================
#if !defined (TAO_AV_SERVER_H)
#define TAO_AV_SERVER_H
#include "ace/Get_Opt.h"
#include "ace/Acceptor.h"
#include "ace/Svc_Handler.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/INET_Addr.h"
#include "ace/SOCK_CODgram.h"
#include "ace/Select_Reactor.h"
#include "include/common.h"
#include "mpeg_server/server_proto.h"
#include "mpeg_shared/fileio.h"
#include "mpeg_shared/routine.h"
#include "mpeg_shared/com.h"
#include "mpeg_server/Video_Control_i.h"
#include "orbsvcs/orbsvcs/Naming/Naming_Utils.h"
#if defined (NATIVE_ATM)
#include "atmcom.h"
#endif /* NATIVE_ATM */
#include "mpeg_server/Video_Server.h"
#include "mpeg_server/Audio_Server.h"
#include "orbsvcs/AV/AVStreams_i.h"
#include "orbsvcs/AV/Endpoint_Strategy.h"
#include "vs.h"
#include "Property_Exporter.h"
#include "Machine_Properties.h"
#include "Video_Repository.h"
class AV_Audio_MMDevice
: public TAO_MMDevice,
public TAO_Exportable
{
public:
static const char* NUMBER_OF_CONNECTIONS;
static const char* MAX_CONNECTIONS;
static const char* SERVER_NAME;
AV_Audio_MMDevice (TAO_AV_Endpoint_Process_Strategy *endpoint_strategy);
// Default constructor
virtual AVStreams::StreamEndPoint_B_ptr
create_B (AVStreams::StreamCtrl_ptr the_requester,
AVStreams::VDev_out the_vdev,
AVStreams::streamQoS &the_qos,
CORBA::Boolean_out met_qos,
char *&named_vdev,
const AVStreams::flowSpec &the_spec,
CORBA::Environment &env);
// Called by StreamCtrl to create a "B" type streamandpoint and vdev
CORBA::ULong connections (void) const;
// Retrieve the number of connections.
virtual void export_properties (TAO_Property_Exporter& prop_exporter);
virtual int define_properties
(CosTradingRepos::ServiceTypeRepository::PropStructSeq& prop_seq,
CORBA::ULong offset = 0) const;
private:
CORBA::ULong connections_;
// Number of active connections
CORBA::ULong max_connections_;
};
class AV_Server;
class AV_Server_Sig_Handler
: public virtual ACE_Event_Handler
{
public:
AV_Server_Sig_Handler (const AV_Server& av_server);
virtual ACE_HANDLE get_handle (void) const;
int register_handler (void);
// this will register this sig_handler
// with the reactor for SIGCHLD,SIGTERM,SIGINT
virtual int shutdown (ACE_HANDLE,
ACE_Reactor_Mask);
virtual int handle_input (ACE_HANDLE);
// handle input on the dummy handle.
virtual int handle_signal (ACE_HANDLE signum,
siginfo_t * = 0,
ucontext_t* = 0);
// handles the SIGCHLD,SIGTERM,SIGINT for the parent process i.e
// the main thread..
void int_handler (int sig);
// Signal handler function for SIGTERM,SIGBUS,SIGINT
int remove_names (void);
// Removes the audio server mmdevice and video server mmdevice from the naming service.
void clear_child (int sig);
// Signal handler function for SIGCHLD
~AV_Server_Sig_Handler (void);
// Destructor
private:
const AV_Server& av_server_;
ACE_HANDLE handle_;
// dummy handle for the sig handler.
ACE_Sig_Set sig_set;
};
class AV_Server
{
// = TITLE
// Defines a class that abstracts the functionality of a
// video and audio server.
//
// = DESCRIPTION
// Using the class is as simple as calling init () first and then
// run. It uses an acceptor with the default ACE_Reactor::instance ().
public:
static const char* SERVICE_TYPE;
AV_Server (void);
// constructor
int init (int argc,
char **argv,
CORBA::Environment& env);
// Initialize the AV_Server
int run (CORBA::Environment& env);
// Run the AV_Server
void shutdown (void) const;
static void on_exit_routine (void);
// Routine called when this process exits.
static pid_t current_pid_;
// %% the pid the server is currently waiting on
static int done_;
// %% the done flag, set by the signal handler
~AV_Server (void);
// Destructor
//private:
private:
int parse_args (int argcs,
char **argv);
// Parse the arguments.
void export_properties (CORBA::Environment& _env);
int resolve_trader (CORBA::Environment& _env);
TAO_ORB_Manager orb_manager_;
// the TAO ORB manager.
TAO_Machine_Properties mach_props_;
// Dynamic properties concerning the server's performance.
TAO_Video_Repository video_rep_;
// Dynamic property that assesses the contents of the sever's video
// repository.
CosTrading::Lookup_var trader_;
// Reference to the Lookup interface of the trading service.
CosTrading::OfferId_var offer_id_;
// Server offer id.
CosTradingRepos::ServiceTypeRepository::PropStructSeq prop_seq_;
// Service type definition.
CosNaming::NamingContext_var naming_context_;
// The root naming context of the naming service
AV_Server_Sig_Handler signal_handler_;
// Signal handler for SIGCHLD,SIGINT,SIGTERM,SIGBUS
ACE_INET_Addr server_control_addr_;
// Control (TCP) Address of this server.
ACE_Process_Options video_process_options_;
// The process options for the process to be spawned by the process strategy
TAO_AV_Endpoint_Process_Strategy_B video_process_strategy_;
// The proces strategy for the video.
TAO_MMDevice *video_mmdevice_;
// The video server multimedia device
ACE_Process_Options audio_process_options_;
// The process options for the process to be spawned by the process strategy
TAO_AV_Endpoint_Process_Strategy_B audio_process_strategy_;
// The proces strategy for the audio.
// TAO_MMDevice *audio_mmdevice_;
AV_Audio_MMDevice *audio_mmdevice_;
// The audio server multimedia device
};
typedef ACE_Singleton<AV_Server,ACE_Null_Mutex> AV_SERVER;
#endif /* TAO_AV_SERVER_H */
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