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Socket.SetDataAvailableEvaluate

Sets the data available evaluation for this socket.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
Socket 6.2 Yes Yes No No Yes
MBS( "Socket.SetDataAvailableEvaluate"; SocketID; Expression )   More

Parameters

Parameter Description Example value
SocketID The socket ID received by Socket.Connect function. $sock
Expression The expression to evaluate.
Can be in local language of FileMaker Pro or english.
For Server must always be in english.
"Let ( $$Done = 1 ; 1 )"

Result

Returns OK or error.

Description

Sets the data available evaluation for this socket.
When new data arrives, this expression is evaluated, so you can call Socket.Read function.
Be aware that expression may be evaluated when just a few bytes are in the read buffer. So the data message you wait for may only be available partly. In that case, please read available bytes, check if whole packet/message arrived and if not, store read data for later and wait for next evaluation.

In the expression the text $$ID$$ will be replaced when evaluated with the socket reference, so you can pass it to other functions if needed.

See also

Blog Entries

Created 29th March 2016, last changed 24th November 2018


Socket.SetBroadcast   -   Socket.SetDataAvailableHandler

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