SDL Wiki
(This function is part of SDL_net, a separate library from SDL.)

SDLNet_CheckSockets

Check a socket set for data availability.

Syntax

int SDLNet_CheckSockets(SDLNet_SocketSet set, Uint32 timeout);

Function Parameters

set

the socket set to check for ready sockets.

timeout

the time to wait in milliseconds for new data to arrive. A timeout of zero checks for new data and returns without blocking.

Return Value

Returns the number of sockets ready for reading, or -1 if there was an error with the select() system call.

Remarks

This function checks to see if data is available for reading on the given set of sockets. If 'timeout' is 0, it performs a quick poll, otherwise the function returns when either data is available for reading, or the timeout in milliseconds has elapsed, whichever occurs first.

Version

This function is available since SDL_net 2.0.0.


CategoryAPI


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