abiusx

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

abiusx

#!/bin/bash
LOGFILE="/tmp/lslog"
ORIGINAL_LS="/bin/LS"

#chmod 777 "${LOGFILE}"

WHOAMI=$(whoami)
TTY=$(tty)
CWD="$(pwd)"
PARENT_COMMAND="$(ps -o comm= $PPID)"

abiusx

<?php
function grep_r($str,$find)
{
	return substr($str,$r=strpos($str,$find)+strlen($find),strpos($str,PHP_EOL,$r)-1-$r);
}
function curl($url,$postparams=[],$headers=[],$additional_opts=[])
{
	$opts=[
		CURLOPT_COOKIEJAR => 'stdlib.cookie',
		CURLOPT_COOKIEFILE => 'stdlib.cookie',

abiusx

<?php
class TypedPHPException extends Exception {
	function __construct($msg,$file,$line)
	{
		parent::__construct($msg);
		$this->file=$file;
		$this->line=$line;
	}
}

abiusx

ZEND_BEGIN_ARG_INFO_EX(phpx_byref_arginfo, 
    1 /*pass_rest_by_reference*/, 
    0/*return_reference*/,
    1/*required_num_args*/)
ZEND_ARG_PASS_INFO(1/*by_ref*/)
ZEND_END_ARG_INFO();

PHP_FUNCTION(zval_id)
{
    //computes the address of first zval sent to it, 

abiusx

ZEND_BEGIN_ARG_INFO_EX(phpx_byref_arginfo, 
    1 /*pass_rest_by_reference*/, 
    0/*return_reference*/,
    1/*required_num_args*/)
ZEND_ARG_PASS_INFO(1/*by_ref*/)
ZEND_END_ARG_INFO();

PHP_FUNCTION(is_ref)
{
    zval *z;

abiusx

<?php
/**
 * This is a hacky is_ref function.
 * Determines whether a variable is a reference or not
 * by using var_dump on its symbol table and
 * checking whether it has '&' before its value or not.
 * @param  array   $defined_vars should send get_defined_vars() to this. enforced.
 * @param  mixed  $var          any variable, should be a variable and not a expression
 * @return boolean               
 */

abiusx

<?php
/**
 * This is a hacky zval_id implementation.
 * It tries to be as fast as possible,
 * and can only detect unique arrays, leaving them
 * modified
 * When in doubt, assumes it's a new zval!
 * @param  mixed &$zval 
 * @return integer        
 */

abiusx

<?php
/**
 * PHP Deep Copy
 * @version  3.1.1: 
 *           _zval_id_accurate now receives its zval pool instead of having it static.
 * 	     if is_ref and zval_id are available
 *           in PHP core, we will use them.
 *           otherwise, we will use PHP based implementations of these
 *           functions.
 *