Real time embedded FreeRTOS RSS feed 
Real time embedded FreeRTOS mailing list 
Homepage FreeRTOS+ Products FreeRTOS Labs Integration Services Contact / Enquiries

FreeRTOS_FD_CLR()

[FreeRTOS Embedded IP Stack API]

FreeRTOS_sockets.h
BaseType_t FreeRTOS_FD_CLR( xSocket_t xSocket, xSocketSet_t xSocketSet );
		

Removes a socket from a socket set.

Socket Sets allow an application task to block when reading from multiple sockets at the same time. Instead of blocking on an individual socket, a task instead blocks on the set.

To use a socket set:

  1. Create a socket set by calling FreeRTOS_CreateSocketSet(). A socket set is equivalent to the Berkeley sockets fd_set type.

  2. Add one or more sockets to the set using calls to FreeRTOS_FD_SET(). FreeRTOS_FD_SET() is equivalent to the Berkeley sockets FD_SET() macro.

  3. Call FreeRTOS_Select() to test the sockets in the set to see if any contain data that is waiting to be read.

  4. Read from the socket returned by FreeRTOS_select() (if any) using a call to FreeRTOS_recvfrom() as normal.
A socket can only be a member of one set at any time.

FreeRTOS_FD_CLR() removes a socket from a set.

Parameters:

xSocket   The socket being removed from the socket set.

xSocketSet   The socket set the socket is a member of.

Returns:

If the socket was removed from the set then pdPASS is returned. If the socket was not removed from the set because it was not a member of the set then pdFAIL is returned.


[ Back to the top ]    [ About FreeRTOS ]    [ FreeRTOS+ Sitemap ]    [ Main FreeRTOS Sitemap ]    [ ]


Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.