Just fully qualify your file handles.
# file Foo.pm
package Foo;
1;
__DATA__
Foo
foo foo foo
# file Bar.pm
package Bar;
1;
__DATA__
print Bar. I told you so.
Last, the script...
#!/usr/bin/perl
use Foo;
use Bar;
print while <DATA>;
print "Foo:\n";
print while <Foo::DATA>;
print "Bar:\n";
print while <Bar::DATA>;
__DATA__
so this works.
__END__
so this works.
Foo:
Foo
foo foo foo
Bar:
print Bar. I told you so.
If you can read from the different DATA filehandles, you've got them. ;)
Parting from there, you can get at the file name via fileno and /proc/$$/fd/ (on linux, that is):
#!/usr/bin/perl
use Foo;
use Bar;
print while <DATA>;
system "ls -l /proc/$$/fd";
print "Foo: ",fileno Foo::DATA, "\n";
print while <Foo::DATA>;
print "Bar: ",fileno Bar::DATA, "\n";
print while <Bar::DATA>;
__DATA__
so this works.
perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'
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