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root |
1.1 |
BEGIN { |
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eval { require Config; import Config }; |
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if ($@) { |
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print "1..0 # Skip: no Config\n"; |
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exit(0); |
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} |
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} |
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use Thread; |
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use Thread::Queue; |
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$q = new Thread::Queue; |
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sub reader { |
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my $tid = Thread->self->tid; |
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my $i = 0; |
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while (1) { |
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$i++; |
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print "reader (tid $tid): waiting for element $i...\n"; |
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my $el = $q->dequeue; |
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print "reader (tid $tid): dequeued element $i: value $el\n"; |
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select(undef, undef, undef, rand(2)); |
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if ($el == -1) { |
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# end marker |
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print "reader (tid $tid) returning\n"; |
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return; |
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} |
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} |
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} |
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my $nthreads = 3; |
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for (my $i = 0; $i < $nthreads; $i++) { |
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Thread->new(\&reader, $i); |
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} |
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for (my $i = 1; $i <= 10; $i++) { |
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my $el = int(rand(100)); |
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select(undef, undef, undef, rand(2)); |
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print "writer: enqueuing value $el\n"; |
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$q->enqueue($el); |
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} |
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$q->enqueue((-1) x $nthreads); # one end marker for each thread |
