From the title of this node, a quick look at your code, and my experience with shared vars on linux:

When you share hashes, only the top level keys get shared, unless you declare each hash element as shared. I have doubts whether a hash, in an shared AoH will actually get shared, and will just fail without error.

As an experiment, try making a minimal example with shared AoH, and see if you can access them from all threads. You probably can't. Then try to (laboriously) individually predeclare all hash elements as shared, and it will probably work. For instance: 

my %shash;
#share(%shash); #will work only for first level keys 
my %hash;
my %workers;
my $numworkers = 3;

foreach my $dthread(1..$numworkers){
 share ($shash{$dthread}{'go'});
 share ($shash{$dthread}{'progress'});
 share ($shash{$dthread}{'timekey'});  #actual instance of the thread 
 share ($shash{$dthread}{'frame_open'}); #open or close the frame 
 share ($shash{$dthread}{'handle'});
 share ($shash{$dthread}{'data'});
 share ($shash{$dthread}{'pid'});
 share ($shash{$dthread}{'die'});

 $shash{$dthread}{'go'} = 0;
 $shash{$dthread}{'progress'} = 0;
 $shash{$dthread}{'timekey'} = 0;
 $shash{$dthread}{'frame_open'} = 0;
 $shash{$dthread}{'handle'} = 0;
 $shash{$dthread}{'data'} = $data;
 $shash{$dthread}{'pid'} = -1;
 $shash{$dthread}{'die'} = 0;
 $hash{$dthread}{'thread'} = threads->new(\&work,$dthread);
}

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In reply to Re: how to share array of hashes among several threads? by zentara
in thread how to share array of hashes among several threads? by enchanter

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