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#!/usr/bin/env entity
<object title="sdf">
<window ondelete="entity:exit">
<label text="This is the IO test, this is only a test."/>
<label text="Had this been a real emergency, we would"/>
<label text="have fled in terror and you would not"/>
<label text="have been informed."/>
</window>
<io
name="read"
onnewdata="read_line"
onerror="got_messed"
/>
<io
name="write"
onerror="got_messed"
/>
<timer interval="1000" action="write_line"/>
<perl>
<![CDATA[
open (RFH, "/etc/passwd") or die "Unable to open /etc/passwd";
my $io = enode ('io.read');
$fd = fileno (RFH);
print ("fd is $fd\n");
$io->attrib ('fd' => $fd);
print ("read io is $io\n");
open (WFH, ">foofile.txt");
$io = enode ('io.write');
$io->attrib ('fd' => fileno (WFH));
print ("write io is $io\n");
sub read_line
{
my ($node, $chunk, $size) = @_;
print ("args, node $node, chunk $chunk, size $size\n");
if ($size <= 0) {
$node->attrib ('fd' => -1);
}
print ("read $chunk");
}
sub write_line
{
my $io = enode ('io.write');
$io->write ("Hello\n");
if (0) {
print WFH "Hello";
}
}
]]>
</perl>
</object>
|
