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/* -*- c++ -*- */
/* $Id$ */
// ============================================================================
//
// = LIBRARY
// server
//
// = FILENAME
// server.h
//
// = DESCRIPTION
// @@ Please add a synopsis of this file.
//
// = 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"
// Forward declaration.
class AV_Svc_Handler;
// @@ We should probably try to replace the ACE_Acceptor with the
// ACE_Strategy_Acceptor using the ACE_Process_Strategy...
// : public virtual ACE_Acceptor <AV_Svc_Handler, ACE_SOCK_ACCEPTOR>
// {
// // = TITLE
// // This defines a AV_Acceptor which is an Acceptor and
// // overrides the make_svc_handler method of the Acceptor.
// //
// // = DESCRIPTION
// // This class overrides the Acceptor's make_svc_handler so that a
// // AV_Svc_Handler can be created with a non-default constructor.
// public:
// virtual int make_svc_handler (AV_Svc_Handler *&sh);
// // Create a new <AV_Svc_Handler> passing 'this' to the service
// // handler.
// };
class AV_Svc_Handler
: public virtual ACE_Svc_Handler <ACE_SOCK_STREAM, ACE_NULL_SYNCH>
{
// = TITLE
// This class defines the service handler for a new connection to
// the AV_Server.
//
// = DESCRIPTION
// This calls the handle_connection method for a new connection
// which demuxes the connection to a video or audio server
// depending on the connection request.
public:
// = Initialization method.
AV_Svc_Handler (ACE_Thread_Manager *t = 0);
virtual int open (void *);
// Perform the work of the SVC_HANDLER. Called by the acceptor
// when a new connection shows up
virtual int handle_connection (ACE_HANDLE = ACE_INVALID_HANDLE);
// Handle one client connection.
virtual int svc (void);
// Thread method
virtual int close (u_long);
// Called if ACE_Svc_Handler is closed down unexpectedly.
int handle_timeout (const ACE_Time_Value &,
const void *arg);
// handle the timeout
private:
ACE_SOCK_CODgram dgram_;
// the UDP data socket
ACE_INET_Addr server_data_addr_;
// Data (UDP) Address of this server.
ACE_INET_Addr client_data_addr_;
// Data (UDP) Address of the client.
Video_Server *vs_;
// @@ need a similar component for audio!
Audio_Server *as_;
// the audio server.
};
class AV_Server_Sig_Handler
: public virtual ACE_Event_Handler
{
public:
AV_Server_Sig_Handler (void);
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
void clear_child (int sig);
// Signal handler function for SIGCHLD
~AV_Server_Sig_Handler (void);
// Destructor
private:
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:
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
static void on_exit_routine (void);
// Routine called when this process exits.
~AV_Server (void);
// Destructor
private:
// @@ Why are some of these data members pointers and others
// objects? Shouldn't we be consistent here?
// TAO_Naming_Server naming_server_;
// the TAO naming server
TAO_ORB_Manager orb_manager_;
// the TAO ORB manager.
// %% need to comment!!
// typedef ACE_Strategy_Acceptor <AV_Svc_Handler, ACE_SOCK_ACCEPTOR> AV_ACCEPTOR;
// typedef ACE_Thread_Strategy <AV_Svc_Handler> AV_THREAD_STRATEGY;
typedef ACE_Acceptor <AV_Svc_Handler, ACE_SOCK_ACCEPTOR> AV_ACCEPTOR;
// AV_THREAD_STRATEGY thread_strategy_;
// the strategy
AV_ACCEPTOR acceptor_;
// the acceptor
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.
int parse_args (int argcs,
char **argv);
// Parse the arguments.
};
#endif /* TAO_AV_SERVER_H */
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