Re: threads::shared hash

Seems to be a problem with your build of perl rather than perl itself, in that I don't get any errors (other than the missing semicolons) running your snippet under 5.8.2/AS 808

This is perl, v5.8.2 built for MSWin32-x86-multi-thread
Binary build 808 provided by ActiveState Corp. http://www.ActiveState.
+com
[download]

That said, your snippet obviously isn't a direct c&p of your failing code (given the syntax errors), and the partial error message you give "Invalid value for shared scalar at..." is usually a compile or runtime error, not a crash. So maybe you should post a more complete example?

P:\test>perl -Mthreads -mthreads::shared
my( %h ) : shared;
my $var = 'hello';
$h{ $var } = 123;
print $h{hello};
^Z
123
[download]

Examine what is said, not who speaks.

"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail

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Re: Re: threads::shared hash by fxmakers (Friar) on Mar 27, 2004 at 01:14 UTC
You're right, I did some mistakes, I just modified my post :P A shared hash works fine, but the creation of a shared hash of hashes is the problem: use threads; use threads::shared; use strict; my %hash : shared; my $var = "hello"; $hash{'foo'}{'bleh'} = "test"; $hash{$var}{'foo'} = "test"; Both 'foo' or $var keys returns the error: Invalid value for shared scalar.	[reply]
Re: Re: Re: threads::shared hash by BrowserUk (Patriarch) on Mar 27, 2004 at 01:30 UTC
Unfortunately, autovivification doesn't auto-share, so you have to manually create shared elements. `#! perl -slw use strict; use threads; use threads::shared; use Data::Dumper; my %hash : shared; my $var = 'hello'; $hash{ foo } = &share( {} ); $hash{ foo }{ bleh } = 'test'; $hash{ $var } = &share( {} ); $hash{ $var }{ foo } = 'test'; print Dumper \%hash; __END__ P:\test>test $VAR1 = { 'foo' => { 'bleh' => 'test' }, 'hello' => { 'foo' => 'test' } };` [download] Note: The `&shared( {} );` syntax is required. See threads::shared for details. Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "Think for yourself!" - Abigail	[reply] [d/l] [select]
Re: Re: Re: Re: threads::shared hash by fxmakers (Friar) on Mar 27, 2004 at 02:28 UTC
Thanks a lot!	[reply]


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