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.TH io_timeout 3
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.SH NAME
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io_timeout \- set time limit on descriptor
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.SH SYNTAX
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.B #include <io.h>
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void \fBio_timeout\fP(int64 fd,tai6464 deadline);
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.SH DESCRIPTION
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The io library keeps track of an optional ``timeout'' for each descriptor. The
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timeout is a specific moment in time, stored in a tai6464 variable.
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io_timeout(\fId\fR,\fIt\fR) sets the timeout for descriptor \fId\fR to \fIt\fR.
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io_timeout has no return value; it always succeeds. (Space to store the timeout
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was already allocated as part of the descriptor.) It has no effect if \fId\fR is not
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the number of a descriptor.
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Note that you have to call io_timeouted to be notified of timeouts, just
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like you are calling io_canread or io_canwrite for read and write
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notification.
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.SH "SEE ALSO"
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io_waituntil(3), io_timeouted(3)
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