NAME
ost::UDPTransmit -
Representing half of a two-way UDP connection, the UDP transmitter can
broadcast data to another selected peer host or to an entire subnet.
SYNOPSIS
#include <socket.h>
Inherits ost::UDPSocket.
Inherited by ost::UDPDuplex.
Public Member Functions
ssize_t transmit (const char *buffer, size_t len)
Transmit send to use connected send rather than sendto.
bool isOutputReady (unsigned long timeout=0l)
See if output queue is empty for sending more packets.
Error setRouting (bool enable)
Error setTypeOfService (Tos tos)
Error setBroadcast (bool enable)
Protected Member Functions
UDPTransmit (Family family=IPV4)
Create a UDP transmitter.
UDPTransmit (const IPV4Address &bind, tpport_t port=5005)
Create a UDP transmitter, bind it to a specific interface and port
address so that other UDP sockets on remote machines (or the same
host) may find and send UDP messages to it, and associate it with a
given port on a peer host.
UDPTransmit (const IPV6Address &bind, tpport_t port=5005)
Error connect (const IPV4Host &host, tpport_t port)
Associate this socket with a specified peer host.
Error connect (const IPV6Address &host, tpport_t port)
Error connect (const IPV4Broadcast &subnet, tpport_t port)
Associate this socket with a subnet of peer hosts for subnet
broadcasting.
Error connect (const IPV4Multicast &mgroup, tpport_t port)
Associate this socket with a multicast group.
Error connect (const IPV6Multicast &mgroup, tpport_t port)
ssize_t send (const void *buf, size_t len)
Transmit send to use connected send rather than sendto.
void endTransmitter (void)
Stop transmitter.
SOCKET getTransmitter (void)
Error setMulticast (bool enable)
Error setTimeToLive (unsigned char ttl)
Detailed Description
Representing half of a two-way UDP connection, the UDP transmitter can
broadcast data to another selected peer host or to an entire subnet.
Author:
David Sugar <dyfet@ostel.com> Unreliable Datagram Peer
Associations.
Constructor & Destructor Documentation
ost::UDPTransmit::UDPTransmit (Family family = IPV4) [protected]
Create a UDP transmitter.
ost::UDPTransmit::UDPTransmit (const IPV4Address & bind, tpport_t port =
5005) [protected]
Create a UDP transmitter, bind it to a specific interface and port
address so that other UDP sockets on remote machines (or the same host)
may find and send UDP messages to it, and associate it with a given
port on a peer host. On failure to bind, an exception is thrown. This
class is only used to build the UDP Duplex.
Parameters:
bind address to bind this socket to.
port number to bind this socket to.
ost::UDPTransmit::UDPTransmit (const IPV6Address & bind, tpport_t port =
5005) [protected]
Member Function Documentation
Error ost::UDPTransmit::connect (const IPV6Multicast & mgroup, tpport_t
port) [protected]
Error ost::UDPTransmit::connect (const IPV4Multicast & mgroup, tpport_t
port) [protected]
Associate this socket with a multicast group. Returns:
0 on success, -1 on error.
Parameters:
mgroup address of the multicast group to send to.
port port number
Error ost::UDPTransmit::connect (const IPV4Broadcast & subnet, tpport_t
port) [protected]
Associate this socket with a subnet of peer hosts for subnet
broadcasting. The server must be able to assert broadcast permission
for the socket.
Returns:
0 on success, -1 on error.
Parameters:
subnet subnet address to broadcast into.
port transport port to broadcast into.
Error ost::UDPTransmit::connect (const IPV6Address & host, tpport_t port)
[protected]
Error ost::UDPTransmit::connect (const IPV4Host & host, tpport_t port)
[protected]
Associate this socket with a specified peer host. The port number from
the constructor will be used. All UDP packets will be sent to and
received from the specified host.
Returns:
0 on success, -1 on error.
Parameters:
host address to connect socket to.
port to connect socket to.
Reimplemented from ost::UDPSocket.
Reimplemented in ost::UDPDuplex.
void ost::UDPTransmit::endTransmitter (void) [inline, protected]
Stop transmitter.
References ost::Socket::endSocket().
SOCKET ost::UDPTransmit::getTransmitter (void) [inline, protected]
bool ost::UDPTransmit::isOutputReady (unsigned long timeout = 0l) [inline]
See if output queue is empty for sending more packets. Returns:
true if output available.
Parameters:
timeout in milliseconds to wait.
References ost::Socket::isPending(), and ost::Socket::pendingOutput.
ssize_t ost::UDPTransmit::send (const void * buf, size_t len) [inline,
protected]
Transmit ’send’ to use ’connected’ send rather than sendto. Returns:
number of bytes sent.
Parameters:
buf address of buffer to send.
len of bytes to send.
Reimplemented from ost::UDPSocket.
References MSG_NOSIGNAL.
Error ost::UDPTransmit::setBroadcast (bool enable) [inline]
Reimplemented from ost::Socket.
References ost::Socket::setBroadcast().
Error ost::UDPTransmit::setMulticast (bool enable) [inline, protected]
Reimplemented from ost::UDPSocket.
References ost::Socket::setMulticastByFamily().
Error ost::UDPTransmit::setRouting (bool enable) [inline]
Reimplemented from ost::Socket.
References ost::Socket::setRouting().
Error ost::UDPTransmit::setTimeToLive (unsigned char ttl) [inline,
protected]
References ost::Socket::setTimeToLiveByFamily().
Error ost::UDPTransmit::setTypeOfService (Tos tos) [inline]
Reimplemented from ost::Socket.
References ost::Socket::setTypeOfService().
ssize_t ost::UDPTransmit::transmit (const char * buffer, size_t len)
[inline]
Transmit ’send’ to use ’connected’ send rather than sendto. Note:
Windows does not support MSG_DONTWAIT, so it is defined as 0 on
that platform.
Returns:
number of bytes sent.
Parameters:
buffer address of buffer to send.
len of bytes to send.
References MSG_DONTWAIT, and MSG_NOSIGNAL.
Author
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