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31 lines
881 B
Plaintext
31 lines
881 B
Plaintext
@node select
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@section @code{select}
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@findex select
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POSIX specification: @url{http://www.opengroup.org/susv3xsh/select.html}
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Gnulib module: ---
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Portability problems fixed by Gnulib:
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@itemize
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@item
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This function is missing on some platforms:
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mingw.
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@item
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When you call @code{select} with a timeout, some implementations modify the
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timeout parameter so that upon return from the function, it contains the
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amount of time not slept. Other implementations leave the timeout parameter
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unmodified.
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@item
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On Windows platforms (excluding Cygwin) and on BeOS, @code{select} can only be
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called on descriptors created by the @code{socket} function, not on regular
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file descriptors.
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@item
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On Linux, when some file descriptor refers to a regular file, @code{select}
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may fail, setting @code{errno} to @code{EBADF}.
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@end itemize
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