function signal($w)
{
global $wires;
// if solved, return signal
if (preg_match('/^\\d+$/', $wires[$w])) {
return intval($wires[$w]);
}
// else if just one input, iterate
if (preg_match('/^([a-z]+)$/', $wires[$w])) {
return signal($wires[$w]);
}
// else split
preg_match('/(([a-z0-9]+) )?([A-Z]+) ([a-z0-9]+)/', $wires[$w], $split);
$a = $split[2];
$op = $split[3];
$b = $split[4];
// solve parts
if ($a) {
if (!preg_match('/^\\d+$/', $a)) {
$a = signal($a);
}
}
if (!preg_match('/^\\d+$/', $b)) {
$b = signal($b);
}
// force ints
$a = intval($a);
$b = intval($b);
// perform bitwise operation
if ($op == 'AND') {
$wires[$w] = $a & $b;
} elseif ($op == 'OR') {
$wires[$w] = $a | $b;
} elseif ($op == 'XOR') {
$wires[$w] = $a ^ $b;
} elseif ($op == 'NOT') {
$wires[$w] = ~$b;
} elseif ($op == 'LSHIFT') {
$wires[$w] = $a << $b;
} elseif ($op == 'RSHIFT') {
$wires[$w] = $a >> $b;
} else {
die('unexpected operator');
}
// return signal
return $wires[$w];
}
<?php
echo "HERE";
xp_import('time');
$precision = 1000;
$signal = new \time\SIG_Awake($precision, TIME_MILLISECONDS);
$signal->time = milliseconds();
$precision_timing = [];
$function = exhaust(10, function ($signal) use($precision, &$precision_timing) {
$timing = intval(floatval(milliseconds() - $signal->time)) - $precision;
echo $timing . PHP_EOL;
if ($timing > 100000) {
// Second change
$timing = 0;
}
$precision_timing[] = [$timing, 0];
$signal->time = milliseconds();
});
signal($signal, $function);
on_shutdown(function () use(&$precision_timing) {
array_shift($precision_timing);
$results = ['msPrecision' => $precision_timing];
ob_start();
include dirname(realpath(__FILE__)) . '/chart.php';
$data = ob_get_contents();
ob_end_clean();
file_put_contents('millisecond_precision.html', $data);
echo "Performance chart in millisecond_precision.html" . PHP_EOL;
});
<?php
xp_import('time');
$precision = 150;
$signal = new \time\SIG_Awake($precision, TIME_MICROSECONDS);
$signal->time = microtime(true);
$precision_timing = [];
signal($signal, exhaust(100, function ($signal) use($precision, &$precision_timing) {
$timing = intval(floatval(microtime(true) - $signal->time) * 1000000) - $precision;
if ($timing > 100000 || $timing < 0) {
// Second change
$timing = 0;
}
$precision_timing[] = [$timing, 0];
$signal->time = microtime(true);
}));
on_shutdown(function () use(&$precision_timing) {
array_shift($precision_timing);
$results = ['usPrecision' => $precision_timing];
ob_start();
include dirname(realpath(__FILE__)) . '/chart.php';
$data = ob_get_contents();
ob_end_clean();
file_put_contents('precision.html', $data);
echo "Performance chart in precision.html" . PHP_EOL;
});
/**
* Copyright 2010-12 Nickolas Whiting. All rights reserved.
* Use of this source code is governed by the Apache 2 license
* that can be found in the LICENSE file.
*/
<?php
try {
signal("warning");
} catch (bu\def\UncatchedSignalException $e) {
echo "catched";
}
?>
---
catched
