What is the scope of a variable called with my in a signal handler anonymous subroutine? Right now I have this code:
my $rip_done = 0;
$SIG{CHLD} = sub { $rip_done = 1;
while( waitpid(-1, WNOHANG) > 0) {} };
elsewhere in the program...
if($rip_done == 1)
{
do some stuff
}
In the interest of having as few global variables as possible, can I initialize $rip_done inside the sub and still use it elsewhere in the program? I'm still trying to get away from using global variables for everything so I'm not 100% up to snuff on scope yet. I'm also new to signal handlers so if I'm not doing things right here, please let me know. Thanks a lot.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.