Jasmine
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Jan 26, 2001, 10:40 AM
Post #1 of 1
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How do I close a file descriptor by number?
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(From the Perl FAQ)
How do I close a file descriptor by number?
This should rarely be necessary, as the Perl close() function is to be used for things that Perl opened itself, even if it was a dup of a numeric descriptor, as with MHCONTEXT above. But if you really have to, you may be able to do this: require 'sys/syscall.ph';
$rc = syscall(&SYS_close, $fd + 0); # must force numeric
die "can't sysclose $fd: $!" unless $rc == -1; |
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