ACE_SOCK_Dgram_SC< STREAM > Class Template Reference

"Dgram_SC" is short for "Datagram Self-Contained." More...

#include <IOStream_T.h>

Collaboration diagram for ACE_SOCK_Dgram_SC< STREAM >:

[legend]List of all members.

Public Member Functions
	ACE_SOCK_Dgram_SC (void)
	ACE_SOCK_Dgram_SC (STREAM &source, ACE_INET_Addr &dest)
ssize_t	send_n (char *buf, ssize_t len)
ssize_t	recv (char *buf, ssize_t len, ACE_Time_Value *tv=0)
ssize_t	recv (char *buf, ssize_t len, int flags, ACE_Time_Value *tv=0)
ssize_t	recv_n (char *buf, ssize_t len, int flags=0, ACE_Time_Value *tv=0)
int	get_remote_addr (ACE_INET_Addr &addr) const
Protected Attributes
ACE_INET_Addr	peer_

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Detailed Description

template<class STREAM>
class ACE_SOCK_Dgram_SC< STREAM >

"Dgram_SC" is short for "Datagram Self-Contained."

Datagrams don't have the notion of a "peer". Each send and receive on a datagram can go to a different peer if you want. If you're using datagrams for stream activity, you probably want 'em all to go to (and come from) the same place. That's what this class is for. Here, we keep an address object so that we can remember who last sent us data. When we write back, we're then able to write back to that same address.

Definition at line 257 of file IOStream_T.h.

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Constructor & Destructor Documentation

template<class STREAM>

ACE_INLINE ACE_SOCK_Dgram_SC< STREAM >::ACE_SOCK_Dgram_SC

(

void

)

Definition at line 39 of file IOStream_T.inl.

{
}

template<class STREAM>

ACE_INLINE ACE_SOCK_Dgram_SC< STREAM >::ACE_SOCK_Dgram_SC	(	STREAM &	source,
		ACE_INET_Addr &	dest
	)

Definition at line 44 of file IOStream_T.inl.

  : STREAM (source),
    peer_ (dest)
{
}

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Member Function Documentation

template<class STREAM>

ACE_INLINE int ACE_SOCK_Dgram_SC< STREAM >::get_remote_addr

(

ACE_INET_Addr &

addr

)

const

Definition at line 117 of file IOStream_T.inl.

References ACE_SOCK_Dgram_SC< STREAM >::peer_.

{
  addr = peer_;
  return 0;
}

template<class STREAM>

ACE_INLINE ssize_t ACE_SOCK_Dgram_SC< STREAM >::recv	(	char *	buf,
		ssize_t	len,
		int	flags,
		ACE_Time_Value *	tv = 0
	)

Definition at line 69 of file IOStream_T.inl.

References ACE_BIT_ENABLED, ACE::get_handle(), MSG_PEEK, ACE_SOCK_Dgram_SC< STREAM >::peer_, ACE::recv(), ACE_OS::select(), and ACE_Handle_Set::set_bit().

{
  if (tv != 0)
    {
      ACE_HANDLE handle = this->get_handle ();
      ACE_Handle_Set handle_set;

      handle_set.set_bit (handle);

      switch (ACE_OS::select (int (handle) + 1,
                              (fd_set *) handle_set, // read_fds.
                              (fd_set *) 0,          // write_fds.
                              (fd_set *) 0,          // exception_fds.
                              tv))
        {
        case 0:
          errno = ETIME;
        case -1:
          return -1;
        default:
          ;     // Do the 'recv' below
        }
    }

  int rval = STREAM::recv (buf, len, peer_, flags);
#if defined (ACE_WIN32)
  if (rval == SOCKET_ERROR)
    if (::WSAGetLastError () == WSAEMSGSIZE)
      if (ACE_BIT_ENABLED (flags, MSG_PEEK))
        rval = len;
#endif /* ACE_WIN32 */
  return rval < len ? rval : len;
}

template<class STREAM>

ACE_INLINE ssize_t ACE_SOCK_Dgram_SC< STREAM >::recv	(	char *	buf,
		ssize_t	len,
		ACE_Time_Value *	tv = 0
	)

Definition at line 59 of file IOStream_T.inl.

Referenced by ACE_SOCK_Dgram_SC< STREAM >::recv_n().

{
  //FUZZ: disable check_for_lack_ACE_OS
  return recv (buf, len, 0, tv);
  //FUZZ: enable check_for_lack_ACE_OS
}

template<class STREAM>

ACE_INLINE ssize_t ACE_SOCK_Dgram_SC< STREAM >::recv_n	(	char *	buf,
		ssize_t	len,
		int	flags = 0,
		ACE_Time_Value *	tv = 0
	)

Definition at line 107 of file IOStream_T.inl.

References ACE_SOCK_Dgram_SC< STREAM >::recv().

{
  int rval = this->recv (buf, len, flags, tv);
  return rval;
}

template<class STREAM>

ACE_INLINE ssize_t ACE_SOCK_Dgram_SC< STREAM >::send_n	(	char *	buf,
		ssize_t	len
	)

Definition at line 52 of file IOStream_T.inl.

References ACE_SOCK_Dgram_SC< STREAM >::peer_, and ACE::send().

{
  return STREAM::send (buf, len, peer_);
}

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Member Data Documentation

template<class STREAM>

ACE_INET_Addr ACE_SOCK_Dgram_SC< STREAM >::peer_ [protected]

Definition at line 278 of file IOStream_T.h.

Referenced by ACE_SOCK_Dgram_SC< STREAM >::get_remote_addr(), ACE_SOCK_Dgram_SC< STREAM >::recv(), and ACE_SOCK_Dgram_SC< STREAM >::send_n().

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The documentation for this class was generated from the following files:

• IOStream_T.h
• IOStream_T.inl

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