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/*
** $Id$
**
** Copyright 2001 Addison Wesley. All Rights Reserved.
*/
#ifndef _REACTIVE_LOGGING_SERVER_H
#define _REACTIVE_LOGGING_SERVER_H
#include "ace/INET_Addr.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/SOCK_Stream.h"
#include "ace/Log_Record.h"
#include "ace/Handle_Set.h"
#include "ace/os_include/os_fcntl.h"
#include "Iterative_Logging_Server.h"
class Reactive_Logging_Server : public Iterative_Logging_Server
{
protected:
// Keep track of the acceptor socket handle and all the
// connected stream socket handles.
ACE_Handle_Set master_handle_set_;
// Keep track of handles marked as active by <select>.
ACE_Handle_Set active_handles_;
virtual int open (u_short logger_port) {
Iterative_Logging_Server::open (logger_port);
master_handle_set_.set_bit (acceptor ().get_handle ());
acceptor ().enable (ACE_NONBLOCK);
return 0;
}
virtual int wait_for_multiple_events () {
active_handles_ = master_handle_set_;
int width = (int)active_handles_.max_set () + 1;
if (select (width,
active_handles_.fdset (),
0, // no write_fds
0, // no except_fds
0) == -1) // no timeout
return -1;
active_handles_.sync
((ACE_HANDLE) ((int) active_handles_.max_set () + 1));
return 0;
}
virtual int handle_connections () {
if (active_handles_.is_set (acceptor ().get_handle ())) {
while (acceptor ().accept (logging_handler ().peer ()) == 0)
master_handle_set_.set_bit
(logging_handler ().peer ().get_handle ());
// Remove acceptor handle from further consideration.
active_handles_.clr_bit (acceptor ().get_handle ());
}
return 0;
}
virtual int handle_data (ACE_SOCK_Stream *) {
ACE_Handle_Set_Iterator peer_iterator (active_handles_);
for (ACE_HANDLE handle;
(handle = peer_iterator ()) != ACE_INVALID_HANDLE;
) {
logging_handler ().peer ().set_handle (handle);
if (logging_handler ().log_record () == -1) {
// Handle connection shutdown or comm failure.
master_handle_set_.clr_bit (handle);
logging_handler ().close ();
}
}
return 0;
}
};
#endif /* _REACTIVE_LOGGING_SERVER_H */
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