Hello,
May you help me to understand what is my misunderstanding with IO::AIO within threads - the docs says it is not reentrant but, is this the issue with the following script and how do I solve it?
Thanks you very much.
(I am on debian, perl 5.14.2, IO::AIO 4.11-2+b1)
% perl /tmp/test.pl /etc/passwd
(in cleanup) IO::AIO: expected a working directory object as returned
+by aio_wd during global destruction.
(in cleanup) IO::AIO: expected a working directory object as r
+eturned by aio_wd during global destruction.
direct call: [65024][73604][33188][1][0][0][0][2235][1319839401][13198
+39401][1319839401][1024][6]
thread call: [65024][73604][33188][1][0][0][0][2235][1319839401][13198
+39401][1319839401][1024][6]
the script itself is
#!/usr/bin/env perl
use strict;
use diagnostics;
use threads;
use IO::AIO;
use POSIX qw/EXIT_SUCCESS/;
my $file = shift;
my @res1 = mylstat($file);
my @res2 = threads->create({'context' => 'list'}, 'mylstat', $file)->j
+oin();
print 'direct call: ['.join('][', @res1) . "]\n";
print 'thread call: ['.join('][', @res2) . "]\n";
exit(EXIT_SUCCESS);
sub mylstat {
my @lstat;
aio_lstat shift, sub {$_[0] and return; @lstat = lstat(_);};
IO::AIO::flush;
return(@lstat);
}
and the IO::AIO warning appears only if I call within thread, not in the direct call version.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.