diff options
Diffstat (limited to 'devel/p5-Perl-Unsafe-Signals/pkg-descr')
| -rw-r--r-- | devel/p5-Perl-Unsafe-Signals/pkg-descr | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/devel/p5-Perl-Unsafe-Signals/pkg-descr b/devel/p5-Perl-Unsafe-Signals/pkg-descr new file mode 100644 index 000000000000..5226f74bc326 --- /dev/null +++ b/devel/p5-Perl-Unsafe-Signals/pkg-descr @@ -0,0 +1,16 @@ +In Perl 5.8.0 the so-called "safe signals" were introduced. This means that Perl +no longer handles signals immediately but instead "between opcodes", when it is +safe to do so. The earlier immediate handling easily could corrupt the internal +state of Perl, resulting in mysterious crashes. + +It's possible since perl 5.8.1 to globally disable this feature by using the +PERL_SIGNALS environment variables (as specified in "PERL_SIGNALS" in perlrun); +but there's no way to disable it locally, for a short period of time. That's +however something you might want to do, if, for example, your Perl program calls +a C routine that will potentially run for a long time and for which you want to +set a timeout. + +This module therefore allows you to define UNSAFE_SIGNALS blocks in which +signals will be handled "unsafely". + +WWW: http://search.cpan.org/dist/Perl-Unsafe-Signals/ |