IOCondition
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class IOCondition
A bitwise combination representing a condition to watch for on an
event source.
Fields
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class IOCondition
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ERR
Error condition.
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HUP
Hung up (the connection has been broken, usually for
pipes and sockets).
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IN
There is data to read.
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NVAL
Invalid request. The file descriptor is not open.
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OUT
Data can be written (without blocking).
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PRI
There is urgent data to read.