All Manuals > LispWorks® User Guide and Reference Manual > 44 The SERIAL-PORT Package

wait-serial-port-state Function

Summary

Waits for some aspect of the state of a serial port to change.

Package

serial-port

Signature

wait-serial-port-state serial-port keys &key timeout => result

Arguments
serial-port
A serial-port object.
keys
A list of keywords.
timeout
A number.
Values
result
A list.
Description

The function wait-serial-port-state waits for some state in the serial port associated with serial-port to change.

The argument keys should be a list of one or more of the keywords :cts, :dsr, :err, :ring, :rlsd and :break.

result is a list giving the keys for which the state has changed.

If timeout is non-nil then the function will return nil after that many seconds even if the state has not changed.


LispWorks® User Guide and Reference Manual - 01 Dec 2021 19:30:55