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19 lines
678 B
Groff
19 lines
678 B
Groff
.TH io_dontwantwrite 3
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.SH NAME
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io_dontwantwrite \- signal that you do not want to write to a descriptor
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.SH SYNTAX
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.B #include <io.h>
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void \fBio_dontwantwrite\fP(int64 fd);
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.SH DESCRIPTION
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io_dontwantwrite tells the next io_wait() that you don't want to write
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to this descriptor for now. Call io_wantwrite() again if you change
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your mind.
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You have to have called io_fd on the descriptor first (io_pipe and
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io_socketpair do this for you). Waiting on descriptors only works for
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sockets, fifos and pipes. It may also work on devices and TTYs, but
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that is platform dependent -- you should not rely on that.
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.SH "SEE ALSO"
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io_wait(3), io_canwrite(3), io_wantwrite(3), io_fd(3)
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