This topic describes how to connect and disconnect a remote host.
To send and receive the data packets, a connection must be established with a remote host. This tutorial describes the following:
The high level steps to connect to a remote host are as follows:
For TCP sockets
An active connection is made to the remote host. When the socket call completes successfully, the socket can send and receive data. To create a connection, the protocol must establish a network interface and a route to the destination. For more information about this process and return values, see the RSocket::Connect() function.
For cancelling the connection
The RSocket::CancelConnect() function cancels the outstanding connect operation with a remote host. This function also cancels any outstanding RSocket::Ioctl() calls. After this call, a socket can be reconnected by RSocket::Connect() function.
A TCP socket can be set to listen with RSocket::Listen() . The aDataOut argument is ignored.
A connection request to a listening socket can be accepted with RSocket::Accept() . An aConnectData argument cannot be specified.
Use RSocket::Shutdown() to asynchronously shut down a TCP. Disconnection data is not supported.
The following table describes the effects of different types of shut down for TCP:
|ENormal||Blocked reads and writes are terminated. No further data is accepted from the remote source and TCP disconnect is initiated.|
|EStopInput||Blocked reads are terminated. No further data is accepted from the remote source.|
|EStopOutput||Blocked writes are terminated. TCP disconnect is initiated.|
|Eimmediate||Blocked reads and writes are terminated. The connection is terminated by sending a reset.|
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