Socket Class

Socket Class

Members

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Socket (int type)

Creates a socket and opens it on a given port. When the socket receives data, packets from all network interfaces will be received. When the socket sends data, the default IP address will be used.

Arguments

• int type - Port, on which the socket will be opened.

Socket (int type, int port)

Creates a socket for TCP or UDP connections and opens it on a given port. When the socket receives data, packets from all network interfaces will be received. When the socket sends data, the default IP address will be used.

Arguments

• int type - Socket for TCP (SOCKET_STREAM variable) or UDP (SOCKET_DGRAM) connections.
• int port - Port, on which the socket will be opened.

Socket (int type, string host, int port)

Creates a socket for TCP or UDP connections and opens it on a given host and a given port. The host specifies the address, from and to which data will be sent.

Arguments

• int type - Socket for TCP (SOCKET_STREAM variable) or UDP (SOCKET_DGRAM) connections.
• string host - Host, on which the socket will be opened.
• int port - Port, on which the socket will be opened.

int accept (Socket socket)

Accepts a connection on the socket.

Arguments

• Socket socket - Socket that is bound to an address and listens to connections.

Return value

1 if a connection is accepted; otherwise, 0.

Socket create (Stream stream)

Socket constructor.

Arguments

• Stream stream - Stream smart pointer.

Return value

int send (int size)

Resizes an internal sending buffer for a socket.

Arguments

• int size - New buffer size in bytes.

Return value

1 if the operation was a success; otherwise, 0.

int open (int port, string host, int port)

Opens the socket on a given port. When the socket receives data, packets from all network interfaces will be received. When the socket sends data, the default IP address will be used.

Arguments

• int port - Port, on which the socket will be opened.
• string host - Host, on which the socket will be opened.
• int port - Port, on which the socket will be opened.

Return value

1 if the socket is opened; otherwise, 0.

int bind ()

Binds the socket to an address figured out from the host used for initialization of the socket.

Return value

1 if an address is bound; otherwise, 0.

int nonblock ()

Makes the socket be non-blocking.

Return value

Positive value if the socket became non-blocking, otherwise 0.

int recv (int size)

Resizes an internal receiving buffer for a socket.

Arguments

• int size - New buffer size in bytes.

Return value

1 if the operation was a success; otherwise, 0.

int block ()

Sets up a blocking socket.

Return value

1 if the socket is opened; otherwise, 0.

CHANGE ME listenMulticastGroup ()

NEW! Add description

Return value

NEW! Return description

void close ()

Closes the socket.

int getPort ()

Returns a port on which the socket is opened.

Return value

Port number.

int getFD ()

Returns the socket file descriptor.

Return value

Socket file descriptor.

int connect ()

Initiates a connection on the socket.

Return value

1 if a connection is initialized; otherwise, 0.

int broadcast ()

Sets up a broadcast socket. To create a broadcast socket, you need to create it with a broadcast host address first and then use this function.

Return value

1 if the socket is opened; otherwise, 0.

string getHost ()

Returns a host on which the socket is opened.

Return value

Host IP address.

int listen (int max)

Makes the socket listen to connections.

Arguments

• int max - Maximum number of pending connections.

Return value

1 if the socket starts listening; otherwise, 0.

int open (int port, string host, int port)

Opens the socket on a given port. When the socket receives data, packets from all network interfaces will be received. When the socket sends data, the default IP address will be used.

Arguments

• int port - Port, on which the socket will be opened.
• string host - Host, on which the socket will be opened.
• int port - Port, on which the socket will be opened.

Return value

int nodelay ()

Unsets flags that limit transmission rate.

Return value

1 if the flags were unset successfully; otherwise, 0.

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int SOCKET_STREAM

Description

Socket for TCP packets.

int SOCKET_DGRAM

Description

Socket for UDP packets.