Edit File: attrs.pm
package attrs; use XSLoader (); $VERSION = "1.03"; =head1 NAME attrs - set/get attributes of a subroutine (deprecated) =head1 SYNOPSIS sub foo { use attrs qw(locked method); ... } @a = attrs::get(\&foo); =head1 DESCRIPTION NOTE: Use of this pragma is deprecated. Use the syntax sub foo : locked method { } to declare attributes instead. See also L<attributes>. This pragma lets you set and get attributes for subroutines. Setting attributes takes place at compile time; trying to set invalid attribute names causes a compile-time error. Calling C<attrs::get> on a subroutine reference or name returns its list of attribute names. Notice that C<attrs::get> is not exported. Valid attributes are as follows. =over 4 =item method Indicates that the invoking subroutine is a method. =item locked Setting this attribute is only meaningful when the subroutine or method is to be called by multiple threads. When set on a method subroutine (i.e. one marked with the B<method> attribute above), perl ensures that any invocation of it implicitly locks its first argument before execution. When set on a non-method subroutine, perl ensures that a lock is taken on the subroutine itself before execution. The semantics of the lock are exactly those of one explicitly taken with the C<lock> operator immediately after the subroutine is entered. =back =cut XSLoader::load 'attrs', $VERSION; 1;
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