Throwing together some code recently, I needed a log function that would keep a file handle open and scoped to itself. I've since found it useful in several places. If you find an reasons *not* to do something like this, please post!
c
#!/usr/bin/perl
use warnings;
use strict;
my $log_file = createLog(time() . '.log');
$log_file->("$0 Initialized");
sub createLog {
my $log_file = shift;
open my $log_handle, ">$log_file" or die "Log file creation failed
+: [$!]\n";
select((select($log_handle), $| = 1)[0]);
return sub {
my $msg = shift;
my $time = scalar(localtime());
$msg = "BGN[$time]\n$msg\nEND[$time]\n\n";
if (fileno $log_handle) {
print $log_handle $msg;
}
else {
warn "Log file closed: $msg";
}
return;
}
}
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|