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kernel.c
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/*
+------------------------------------------------------------------------+
| Phalcon Framework |
+------------------------------------------------------------------------+
| Copyright (c) 2011-2013 Phalcon Team (http://www.phalconphp.com) |
+------------------------------------------------------------------------+
| This source file is subject to the New BSD License that is bundled |
| with this package in the file docs/LICENSE.txt. |
| |
| If you did not receive a copy of the license and are unable to |
| obtain it through the world-wide-web, please send an email |
| to license@phalconphp.com so we can send you a copy immediately. |
+------------------------------------------------------------------------+
| Authors: Andres Gutierrez <andres@phalconphp.com> |
| Eduar Carvajal <eduar@phalconphp.com> |
+------------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_phalcon.h"
#include "phalcon.h"
#include "Zend/zend_operators.h"
#include "Zend/zend_exceptions.h"
#include "Zend/zend_interfaces.h"
#include "kernel/main.h"
#include "kernel/memory.h"
/**
* Phalcon\Kernel
*
* This class allows to change the internal behavior of the framework in runtime
*/
/**
* Phalcon\Kernel initializer
*/
PHALCON_INIT_CLASS(Phalcon_Kernel){
PHALCON_REGISTER_CLASS(Phalcon, Kernel, kernel, phalcon_kernel_method_entry, 0);
return SUCCESS;
}
/**
* Produces a pre-computed hash key based on a string. This function produce different numbers in 32bit/64bit processors
*
* @param string $arrKey
* @return string
*/
PHP_METHOD(Phalcon_Kernel, preComputeHashKey){
char *arKey, *strKey;
unsigned int nKeyLength;
register ulong hash = 5381;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &arKey, &nKeyLength) == FAILURE) {
RETURN_NULL();
}
nKeyLength++;
/* variant with the hash unrolled eight times */
for (; nKeyLength >= 8; nKeyLength -= 8) {
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
}
switch (nKeyLength) {
case 7: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 6: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 5: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 4: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 3: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 2: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 1: hash = ((hash << 5) + hash) + *arKey++; break;
case 0: break;
}
strKey = emalloc(24);
sprintf(strKey, "%lu", hash);
RETURN_STRING(strKey, 0);
}
/**
* Produces a pre-computed hash key based on a string. This function produce a hash for a 32bits processor
*
* @param string $arrKey
* @return string
*/
PHP_METHOD(Phalcon_Kernel, preComputeHashKey32){
char *arKey, *strKey;
unsigned int nKeyLength;
ulong hash;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &arKey, &nKeyLength) == FAILURE) {
RETURN_NULL();
}
nKeyLength++;
hash = zend_inline_hash_func(arKey, nKeyLength) & 0xFFFFFFFFul;
strKey = emalloc(24);
sprintf(strKey, "%lu", hash);
RETURN_STRING(strKey, 0);
}
/**
* Produces a pre-computed hash key based on a string. This function produce a hash for a 64bits processor
*
* @param string $arrKey
* @return string
*/
PHP_METHOD(Phalcon_Kernel, preComputeHashKey64){
char *arKey, *strKey;
unsigned int nKeyLength;
register unsigned long long hash = 5381;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &arKey, &nKeyLength) == FAILURE) {
RETURN_NULL();
}
nKeyLength++;
/* variant with the hash unrolled eight times */
for (; nKeyLength >= 8; nKeyLength -= 8) {
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
hash = ((hash << 5) + hash) + *arKey++;
}
switch (nKeyLength) {
case 7: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 6: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 5: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 4: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 3: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 2: hash = ((hash << 5) + hash) + *arKey++; /* fallthrough... */
case 1: hash = ((hash << 5) + hash) + *arKey++; break;
case 0: break;
}
strKey = emalloc(24);
sprintf(strKey, "%llu", hash);
RETURN_STRING(strKey, 0);
}