David Nicol

NAME

Scope::local_OnExit - an execute-at-scope-exit mechanism using local

SYNOPSIS

  our $onExit;
  use Scope::local_OnExit;
  ...
  sub SomethingCritical{
     local$OnExit=\&release_lock;
     obtain_lock;
     ...
  }

DESCRIPTION

This very short module provides a pure-perl mechanism for executing perl code at scope exit, at the time that the "old value" is returned to the tied variable.

PORTING FROM Scope::OnExit

Instead of

   on_scope_exit { do_something($var) };

one would code

   local$OnExit=sub{ do_something($var) };

EXPORT

the scalar package variable $OnExit is tied into the package.

To tie a different variable than $OnExit, use empty parentheses on the use line to suppress import and tie the variable of your selection.

HISTORY

0.00

initial draft written March 2010 and published on a blog and submitted to the module-authors mailing list for comment.

0.01

This version (April 2010) reflects comments received.

SEE ALSO

Scope::OnExit provides the same functionality but must be compiled.

AUTHOR

David Nicol davidnico@cpan.org

Please comment via rt.cpan.org

COPYRIGHT AND LICENSE

Copyright (C) 2010 by David Nicol / TipJar LLC

Released under the http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported License

Leaving this section in the documentation in your installed library is sufficient attribution.




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