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php-src/main/php.h
Ilija Tovilo 2f5295692f
Optimize stripos/stristr 
Closes GH-7847
Closes GH-7852

Previously stripos/stristr would lowercase both the haystack and the
needle to reuse strpos. The approach in this PR is similar to strpos.
memchr is highly optimized so we're using it to search for the first
character of the needle in the haystack. If we find it we compare the
remaining characters of the needle manually.

The new implementation seems to perform about half as well as strpos (as
two memchr calls are necessary to find the next candidate).
2022-01-31 21:44:31 +01:00

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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@php.net> |
| Zeev Suraski <zeev@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef PHP_H
#define PHP_H
#ifdef HAVE_DMALLOC
#include <dmalloc.h>
#endif
#define PHP_API_VERSION 20210903
#define PHP_HAVE_STREAMS
#define YYDEBUG 0
#define PHP_DEFAULT_CHARSET "UTF-8"
#include "php_version.h"
#include "zend.h"
#include "zend_sort.h"
#include "php_compat.h"
#include "zend_API.h"
#define php_sprintf sprintf
/* Operating system family definition */
#ifdef PHP_WIN32
# define PHP_OS_FAMILY "Windows"
#elif defined(BSD) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
# define PHP_OS_FAMILY "BSD"
#elif defined(__APPLE__) || defined(__MACH__)
# define PHP_OS_FAMILY "Darwin"
#elif defined(__sun__)
# define PHP_OS_FAMILY "Solaris"
#elif defined(__linux__)
# define PHP_OS_FAMILY "Linux"
#else
# define PHP_OS_FAMILY "Unknown"
#endif
/* PHP's DEBUG value must match Zend's ZEND_DEBUG value */
#undef PHP_DEBUG
#define PHP_DEBUG ZEND_DEBUG
#ifdef PHP_WIN32
# include "tsrm_win32.h"
# ifdef PHP_EXPORTS
# define PHPAPI __declspec(dllexport)
# else
# define PHPAPI __declspec(dllimport)
# endif
# define PHP_DIR_SEPARATOR '\\'
# define PHP_EOL "\r\n"
#else
# if defined(__GNUC__) && __GNUC__ >= 4
# define PHPAPI __attribute__ ((visibility("default")))
# else
# define PHPAPI
# endif
# define PHP_DIR_SEPARATOR '/'
# define PHP_EOL "\n"
#endif
/* Windows specific defines */
#ifdef PHP_WIN32
# define PHP_PROG_SENDMAIL "Built in mailer"
# define WIN32_LEAN_AND_MEAN
# define NOOPENFILE
# include <io.h>
# include <malloc.h>
# include <direct.h>
# include <stdlib.h>
# include <stdio.h>
# include <stdarg.h>
# include <sys/types.h>
# include <process.h>
typedef int uid_t;
typedef int gid_t;
typedef char * caddr_t;
typedef int pid_t;
# define M_TWOPI (M_PI * 2.0)
# define off_t _off_t
# define lstat(x, y) php_sys_lstat(x, y)
# define chdir(path) _chdir(path)
# define mkdir(a, b) _mkdir(a)
# define rmdir(a) _rmdir(a)
# define getpid _getpid
# define php_sleep(t) SleepEx(t*1000, TRUE)
# ifndef getcwd
# define getcwd(a, b) _getcwd(a, b)
# endif
#endif
#if PHP_DEBUG
#undef NDEBUG
#else
#ifndef NDEBUG
#define NDEBUG
#endif
#endif
#include <assert.h>
#ifdef HAVE_UNIX_H
#include <unix.h>
#endif
#if HAVE_ALLOCA_H
#include <alloca.h>
#endif
#if HAVE_BUILD_DEFS_H
#include <build-defs.h>
#endif
/*
* This is a fast version of strlcpy which should be used, if you
* know the size of the destination buffer and if you know
* the length of the source string.
*
* size is the allocated number of bytes of dst
* src_size is the number of bytes excluding the NUL of src
*/
#define PHP_STRLCPY(dst, src, size, src_size) \
{ \
size_t php_str_len; \
\
if (src_size >= size) \
php_str_len = size - 1; \
else \
php_str_len = src_size; \
memcpy(dst, src, php_str_len); \
dst[php_str_len] = '\0'; \
}
#ifndef HAVE_STRLCPY
BEGIN_EXTERN_C()
PHPAPI size_t php_strlcpy(char *dst, const char *src, size_t siz);
END_EXTERN_C()
#undef strlcpy
#define strlcpy php_strlcpy
#define HAVE_STRLCPY 1
#define USE_STRLCPY_PHP_IMPL 1
#endif
#ifndef HAVE_STRLCAT
BEGIN_EXTERN_C()
PHPAPI size_t php_strlcat(char *dst, const char *src, size_t siz);
END_EXTERN_C()
#undef strlcat
#define strlcat php_strlcat
#define HAVE_STRLCAT 1
#define USE_STRLCAT_PHP_IMPL 1
#endif
#ifndef HAVE_EXPLICIT_BZERO
BEGIN_EXTERN_C()
PHPAPI void php_explicit_bzero(void *dst, size_t siz);
END_EXTERN_C()
#undef explicit_bzero
#define explicit_bzero php_explicit_bzero
#endif
#ifndef HAVE_STRTOK_R
BEGIN_EXTERN_C()
char *strtok_r(char *s, const char *delim, char **last);
END_EXTERN_C()
#endif
#ifndef HAVE_SOCKLEN_T
# ifdef PHP_WIN32
typedef int socklen_t;
# else
typedef unsigned int socklen_t;
# endif
#endif
#define CREATE_MUTEX(a, b)
#define SET_MUTEX(a)
#define FREE_MUTEX(a)
/*
* Then the ODBC support can use both iodbc and Solid,
* uncomment this.
* #define HAVE_ODBC (HAVE_IODBC|HAVE_SOLID)
*/
#include <stdlib.h>
#include <ctype.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdarg.h>
#include "php_stdint.h"
#include "zend_hash.h"
#include "zend_alloc.h"
#include "zend_stack.h"
#include <string.h>
#if HAVE_PWD_H
# ifdef PHP_WIN32
#include "win32/param.h"
# else
#include <pwd.h>
#include <sys/param.h>
# endif
#endif
#include <limits.h>
#ifndef LONG_MAX
#define LONG_MAX 2147483647L
#endif
#ifndef LONG_MIN
#define LONG_MIN (- LONG_MAX - 1)
#endif
#ifndef INT_MAX
#define INT_MAX 2147483647
#endif
#ifndef INT_MIN
#define INT_MIN (- INT_MAX - 1)
#endif
#define PHP_DOUBLE_MAX_LENGTH ZEND_DOUBLE_MAX_LENGTH
#define PHP_GCC_VERSION ZEND_GCC_VERSION
#define PHP_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_MALLOC
#define PHP_ATTRIBUTE_FORMAT ZEND_ATTRIBUTE_FORMAT
BEGIN_EXTERN_C()
#include "snprintf.h"
END_EXTERN_C()
#include "spprintf.h"
#define EXEC_INPUT_BUF 4096
#define PHP_MIME_TYPE "application/x-httpd-php"
/* macros */
#define STR_PRINT(str) ((str)?(str):"")
#ifndef MAXPATHLEN
# ifdef PHP_WIN32
# include "win32/ioutil.h"
# define MAXPATHLEN PHP_WIN32_IOUTIL_MAXPATHLEN
# elif PATH_MAX
# define MAXPATHLEN PATH_MAX
# elif defined(MAX_PATH)
# define MAXPATHLEN MAX_PATH
# else
# define MAXPATHLEN 256 /* Should be safe for any weird systems that do not define it */
# endif
#endif
#define php_ignore_value(x) ZEND_IGNORE_VALUE(x)
/* global variables */
#ifndef PHP_WIN32
#define php_sleep sleep
extern char **environ;
#endif /* ifndef PHP_WIN32 */
#ifdef PHP_PWRITE_64
ssize_t pwrite(int, void *, size_t, off64_t);
#endif
#ifdef PHP_PREAD_64
ssize_t pread(int, void *, size_t, off64_t);
#endif
BEGIN_EXTERN_C()
void phperror(char *error);
PHPAPI size_t php_write(void *buf, size_t size);
PHPAPI size_t php_printf(const char *format, ...) PHP_ATTRIBUTE_FORMAT(printf, 1, 2);
PHPAPI size_t php_printf_unchecked(const char *format, ...);
PHPAPI int php_during_module_startup(void);
PHPAPI int php_during_module_shutdown(void);
PHPAPI int php_get_module_initialized(void);
#ifdef HAVE_SYSLOG_H
#include "php_syslog.h"
#define php_log_err(msg) php_log_err_with_severity(msg, LOG_NOTICE)
#else
#define php_log_err(msg) php_log_err_with_severity(msg, 5)
#endif
PHPAPI ZEND_COLD void php_log_err_with_severity(const char *log_message, int syslog_type_int);
int Debug(char *format, ...) PHP_ATTRIBUTE_FORMAT(printf, 1, 2);
int cfgparse(void);
END_EXTERN_C()
#define php_error zend_error
#define error_handling_t zend_error_handling_t
BEGIN_EXTERN_C()
static inline ZEND_ATTRIBUTE_DEPRECATED void php_set_error_handling(error_handling_t error_handling, zend_class_entry *exception_class)
{
zend_replace_error_handling(error_handling, exception_class, NULL);
}
static inline ZEND_ATTRIBUTE_DEPRECATED void php_std_error_handling(void) {}
PHPAPI ZEND_COLD void php_verror(const char *docref, const char *params, int type, const char *format, va_list args) PHP_ATTRIBUTE_FORMAT(printf, 4, 0);
/* PHPAPI void php_error(int type, const char *format, ...); */
PHPAPI ZEND_COLD void php_error_docref(const char *docref, int type, const char *format, ...)
PHP_ATTRIBUTE_FORMAT(printf, 3, 4);
PHPAPI ZEND_COLD void php_error_docref1(const char *docref, const char *param1, int type, const char *format, ...)
PHP_ATTRIBUTE_FORMAT(printf, 4, 5);
PHPAPI ZEND_COLD void php_error_docref2(const char *docref, const char *param1, const char *param2, int type, const char *format, ...)
PHP_ATTRIBUTE_FORMAT(printf, 5, 6);
#ifdef PHP_WIN32
PHPAPI ZEND_COLD void php_win32_docref1_from_error(DWORD error, const char *param1);
PHPAPI ZEND_COLD void php_win32_docref2_from_error(DWORD error, const char *param1, const char *param2);
#endif
END_EXTERN_C()
#define zenderror phperror
#define zendlex phplex
#define phpparse zendparse
#define phprestart zendrestart
#define phpin zendin
#define php_memnstr zend_memnstr
#define php_memnistr zend_memnistr
/* functions */
BEGIN_EXTERN_C()
PHPAPI extern int (*php_register_internal_extensions_func)(void);
PHPAPI int php_register_internal_extensions(void);
PHPAPI void php_register_pre_request_shutdown(void (*func)(void *), void *userdata);
PHPAPI void php_com_initialize(void);
PHPAPI char *php_get_current_user(void);
PHPAPI const char *php_get_internal_encoding(void);
PHPAPI const char *php_get_input_encoding(void);
PHPAPI const char *php_get_output_encoding(void);
PHPAPI extern void (*php_internal_encoding_changed)(void);
END_EXTERN_C()
/* PHP-named Zend macro wrappers */
#define PHP_FN ZEND_FN
#define PHP_MN ZEND_MN
#define PHP_NAMED_FUNCTION ZEND_NAMED_FUNCTION
#define PHP_FUNCTION ZEND_FUNCTION
#define PHP_METHOD ZEND_METHOD
#define PHP_RAW_NAMED_FE ZEND_RAW_NAMED_FE
#define PHP_NAMED_FE ZEND_NAMED_FE
#define PHP_FE ZEND_FE
#define PHP_DEP_FE ZEND_DEP_FE
#define PHP_FALIAS ZEND_FALIAS
#define PHP_DEP_FALIAS ZEND_DEP_FALIAS
#define PHP_ME ZEND_ME
#define PHP_MALIAS ZEND_MALIAS
#define PHP_ABSTRACT_ME ZEND_ABSTRACT_ME
#define PHP_ME_MAPPING ZEND_ME_MAPPING
#define PHP_FE_END ZEND_FE_END
#define PHP_MODULE_STARTUP_N ZEND_MODULE_STARTUP_N
#define PHP_MODULE_SHUTDOWN_N ZEND_MODULE_SHUTDOWN_N
#define PHP_MODULE_ACTIVATE_N ZEND_MODULE_ACTIVATE_N
#define PHP_MODULE_DEACTIVATE_N ZEND_MODULE_DEACTIVATE_N
#define PHP_MODULE_INFO_N ZEND_MODULE_INFO_N
#define PHP_MODULE_STARTUP_D ZEND_MODULE_STARTUP_D
#define PHP_MODULE_SHUTDOWN_D ZEND_MODULE_SHUTDOWN_D
#define PHP_MODULE_ACTIVATE_D ZEND_MODULE_ACTIVATE_D
#define PHP_MODULE_DEACTIVATE_D ZEND_MODULE_DEACTIVATE_D
#define PHP_MODULE_INFO_D ZEND_MODULE_INFO_D
/* Compatibility macros */
#define PHP_MINIT ZEND_MODULE_STARTUP_N
#define PHP_MSHUTDOWN ZEND_MODULE_SHUTDOWN_N
#define PHP_RINIT ZEND_MODULE_ACTIVATE_N
#define PHP_RSHUTDOWN ZEND_MODULE_DEACTIVATE_N
#define PHP_MINFO ZEND_MODULE_INFO_N
#define PHP_GINIT ZEND_GINIT
#define PHP_GSHUTDOWN ZEND_GSHUTDOWN
#define PHP_MINIT_FUNCTION ZEND_MODULE_STARTUP_D
#define PHP_MSHUTDOWN_FUNCTION ZEND_MODULE_SHUTDOWN_D
#define PHP_RINIT_FUNCTION ZEND_MODULE_ACTIVATE_D
#define PHP_RSHUTDOWN_FUNCTION ZEND_MODULE_DEACTIVATE_D
#define PHP_MINFO_FUNCTION ZEND_MODULE_INFO_D
#define PHP_GINIT_FUNCTION ZEND_GINIT_FUNCTION
#define PHP_GSHUTDOWN_FUNCTION ZEND_GSHUTDOWN_FUNCTION
#define PHP_MODULE_GLOBALS ZEND_MODULE_GLOBALS
/* Output support */
#include "main/php_output.h"
#include "php_streams.h"
#include "php_memory_streams.h"
#include "fopen_wrappers.h"
/* Virtual current working directory support */
#include "zend_virtual_cwd.h"
#include "zend_constants.h"
/* connection status states */
#define PHP_CONNECTION_NORMAL 0
#define PHP_CONNECTION_ABORTED 1
#define PHP_CONNECTION_TIMEOUT 2
#include "php_reentrancy.h"
#endif
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