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Mathematica > MathLink Mathematica Functions >

Built-in Mathematica Symbol

LinkReadyQ

LinkReadyQ[link]
tests whether there is an expression ready to read from the specified MathLink connection.

LinkReadyQ[link, t]
waits for up to t seconds to see if an expression becomes ready to read.

LinkReadyQ[{link₁, link₂, ...}, t]
tests all the link_i in parallel, returning as soon as any of them are ready to read from.

The link_i must be active LinkObject objects, as returned by functions like LinkLaunch or Links.

LinkReadyQ[{link₁, link₂, ...}, t] returns a list of True and False, specifying which of the link_i are ready to read from.

If LinkReadyQ[link] returns True, then LinkRead[link] will not block under any normal circumstances.

If LinkReadyQ[link] returns False, then LinkRead[link] will block, and will not return until something becomes available to read on link.

LinkReadyQ[link] tests whether there is any data to read; it cannot determine whether the data represents a complete expression.

The basic form of LinkReadyQ corresponds to the MathLink library function MLReady().