NAME
ost::TCPV6Socket -
TCPV6 sockets are used for stream based connected sessions between two
ipv6 sockets.
SYNOPSIS
#include <socket.h>
Inherits ost::Socket.
Public Member Functions
virtual bool onAccept (const IPV6Host &ia, tpport_t port)
A method to call in a derived TCPSocket class that is acting as a
server when a connection request is being accepted.
SOCKET getSocket (void)
Fetch out the socket.
int getSegmentSize (void)
TCPV6Socket (const IPV6Address &bind, tpport_t port, unsigned
backlog=5, unsigned mss=536)
A TCP server is created as a TCP socket that is bound to a
hardware address and port number on the local machine and that has
a backlog queue to listen for remote connection requests.
TCPV6Socket (const char *name, unsigned backlog=5, unsigned mss=536)
Create a TCP server for a named host interface and service port.
IPV6Host getRequest (tpport_t *port=NULL) const
Return address and port of next connection request.
void reject (void)
Used to reject the next incoming connection request.
IPV6Host getLocal (tpport_t *port=NULL) const
Used to get local bound address.
bool isPendingConnection (timeout_t timeout=TIMEOUT_INF)
Used to wait for pending connection requests.
virtual ~TCPV6Socket ()
Use base socket handler for ending this socket.
Detailed Description
TCPV6 sockets are used for stream based connected sessions between two
ipv6 sockets.
Both error recovery and flow control operate transparently for a TCP
socket connection. The TCP socket base class is primary used to bind a
TCP ’server’ for accepting TCP streams.
An implicit and unique TCPV6Socket object exists in Common C++ to
represent a bound ipv6 TCP socket acting as a ’server’ for receiving
connection requests. This class is not part of TCPStream because such
objects normally perform no physical I/O (read or write operations)
other than to specify a listen backlog queue and perform ’accept’
operations for pending connections. The Common C++ TCPV6Socket offers a
Peek method to examine where the next pending connection is coming
from, and a Reject method to flush the next request from the queue
without having to create a session.
The TCPV6Socket also supports a ’OnAccept’ method which can be called
when a TCPStream related object is created from a TCPSocket. By
creating a TCPStream from a TCPV6Socket, an accept operation
automatically occurs, and the TCPV6Socket can then still reject the
client connection through the return status of it’s OnAccept method.
Author:
David Sugar <dyfet@tycho.com> bound server for TCP streams and
sessions.
Constructor & Destructor Documentation
ost::TCPV6Socket::TCPV6Socket (const IPV6Address & bind, tpport_t port,
unsigned backlog = 5, unsigned mss = 536)
A TCP ’server’ is created as a TCP socket that is bound to a hardware
address and port number on the local machine and that has a backlog
queue to listen for remote connection requests. If the server cannot be
created, an exception is thrown.
Parameters:
bind local ip address or interface to use.
port number to bind socket under.
backlog size of connection request queue.
mss maximum segment size of streaming buffer.
ost::TCPV6Socket::TCPV6Socket (const char * name, unsigned backlog = 5,
unsigned mss = 536)
Create a TCP server for a named host interface and service port. We use
[host/]port for specifying the optional host name and service port
since ’:’ is a valid char for ipv6 addresses.
Parameters:
name of host interface and service to use.
backlog size of connection request queue.
mss maximum segment size of streaming buffers.
virtual ost::TCPV6Socket::~TCPV6Socket () [virtual]
Use base socket handler for ending this socket.
Member Function Documentation
IPV6Host ost::TCPV6Socket::getLocal (tpport_t * port = NULL) const [inline]
Used to get local bound address.
Reimplemented from ost::Socket.
References ost::Socket::getIPV6Local().
IPV6Host ost::TCPV6Socket::getRequest (tpport_t * port = NULL) const
[inline]
Return address and port of next connection request. This can be used
instead of OnAccept() to pre-evaluate connection requests.
Returns:
host requesting a connection.
Parameters:
port number of requestor.
References ost::Socket::getIPV6Sender().
int ost::TCPV6Socket::getSegmentSize (void) [inline]
SOCKET ost::TCPV6Socket::getSocket (void) [inline]
Fetch out the socket.
bool ost::TCPV6Socket::isPendingConnection (timeout_t timeout =
TIMEOUT_INF) [inline]
Used to wait for pending connection requests. Returns:
true if data packets available.
Parameters:
timeout in milliseconds. TIMEOUT_INF if not specified.
References ost::Socket::isPending(), and ost::Socket::pendingInput.
virtual bool ost::TCPV6Socket::onAccept (const IPV6Host & ia, tpport_t
port) [virtual]
A method to call in a derived TCPSocket class that is acting as a
server when a connection request is being accepted. The server can
implement protocol specific rules to exclude the remote socket from
being accepted by returning false. The Peek method can also be used for
this purpose.
Returns:
true if client should be accepted.
Parameters:
ia internet host address of the client.
port number of the client.
void ost::TCPV6Socket::reject (void)
Used to reject the next incoming connection request.
Author
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