Library: Net
Package: Sockets
Header: Poco/Net/StreamSocket.h
Description
This class provides an interface to a TCP stream socket.
Inheritance
Direct Base Classes: Socket
All Base Classes: Socket
Known Derived Classes: SecureStreamSocket, DialogSocket
Member Summary
Member Functions: connect, connectNB, operator =, receiveBytes, sendBytes, sendUrgent, shutdown, shutdownReceive, shutdownSend
Inherited Functions: address, available, close, getBlocking, getKeepAlive, getLinger, getNoDelay, getOOBInline, getOption, getReceiveBufferSize, getReceiveTimeout, getReuseAddress, getReusePort, getSendBufferSize, getSendTimeout, impl, operator, operator !=, operator <, operator <=, operator =, operator >, operator >=, peerAddress, poll, select, setBlocking, setKeepAlive, setLinger, setNoDelay, setOOBInline, setOption, setReceiveBufferSize, setReceiveTimeout, setReuseAddress, setReusePort, setSendBufferSize, setSendTimeout, sockfd, supportsIPv4, supportsIPv6
Constructors
StreamSocket
StreamSocket();
Creates an unconnected stream socket.
Before sending or receiving data, the socket must be connected with a call to connect().
StreamSocket
StreamSocket(
const SocketAddress & address
);
Creates a stream socket and connects it to the socket specified by address.
StreamSocket
StreamSocket(
const Socket & socket
);
Creates the StreamSocket with the SocketImpl from another socket. The SocketImpl must be a StreamSocketImpl, otherwise an InvalidArgumentException will be thrown.
StreamSocket
StreamSocket(
SocketImpl * pImpl
);
Creates the Socket and attaches the given SocketImpl. The socket takes owership of the SocketImpl.
The SocketImpl must be a StreamSocketImpl, otherwise an InvalidArgumentException will be thrown.
Destructor
~StreamSocket 
virtual ~StreamSocket();
Destroys the StreamSocket.
Member Functions
connect
void connect(
const SocketAddress & address
);
Initializes the socket and establishes a connection to the TCP server at the given address.
Can also be used for UDP sockets. In this case, no connection is established. Instead, incoming and outgoing packets are restricted to the specified address.
connect
void connect(
const SocketAddress & address,
const Poco::Timespan & timeout
);
Initializes the socket, sets the socket timeout and establishes a connection to the TCP server at the given address.
connectNB
void connectNB(
const SocketAddress & address
);
Initializes the socket and establishes a connection to the TCP server at the given address. Prior to opening the connection the socket is set to nonblocking mode.
operator =
StreamSocket & operator = (
const Socket & socket
);
Assignment operator.
Releases the socket's SocketImpl and attaches the SocketImpl from the other socket and increments the reference count of the SocketImpl.
receiveBytes
int receiveBytes(
void * buffer,
int length,
int flags = 0
);
Receives data from the socket and stores it in buffer. Up to length bytes are received.
Returns the number of bytes received. A return value of 0 means a graceful shutdown of the connection from the peer.
Throws a TimeoutException if a receive timeout has been set and nothing is received within that interval. Throws a NetException (or a subclass) in case of other errors.
sendBytes
int sendBytes(
const void * buffer,
int length,
int flags = 0
);
Sends the contents of the given buffer through the socket.
Returns the number of bytes sent, which may be less than the number of bytes specified.
sendUrgent
void sendUrgent(
unsigned char data
);
Sends one byte of urgent data through the socket.
The data is sent with the MSG_OOB flag.
The preferred way for a socket to receive urgent data is by enabling the SO_OOBINLINE option.
shutdown
void shutdown();
Shuts down both the receiving and the sending part of the socket connection.
shutdownReceive
void shutdownReceive();
Shuts down the receiving part of the socket connection.
shutdownSend
void shutdownSend();
Shuts down the sending part of the socket connection.