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73b159e056
php-src/Zend/zend.h
Andi Gutmans 73b159e056 - Experimental support for destructors. We need to see if destructors 
- will actually work well in the context of PHP so we should consider this
- as experimental. Possible problems might be that when the constructor is
- run PHP might not be in a stable state.
2001-12-27 14:35:09 +00:00

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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2001 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef ZEND_H
#define ZEND_H
#define ZEND_VERSION "2.0.0-dev"
#ifdef __cplusplus
#define BEGIN_EXTERN_C() extern "C" {
#define END_EXTERN_C() }
#else
#define BEGIN_EXTERN_C()
#define END_EXTERN_C()
#endif
#include <stdio.h>
/*
* general definitions
*/
#ifdef ZEND_WIN32
# include "zend_config.w32.h"
# define ZEND_PATHS_SEPARATOR ';'
#elif defined(__riscos__)
# include "zend_config.h"
# define ZEND_PATHS_SEPARATOR ';'
#else
# include "zend_config.h"
# define ZEND_PATHS_SEPARATOR ':'
#endif
/* all HAVE_XXX test have to be after the include of zend_config above */
#ifdef HAVE_UNIX_H
# include <unix.h>
#endif
#ifdef HAVE_STDARG_H
# include <stdarg.h>
#endif
#ifdef HAVE_DLFCN_H
# include <dlfcn.h>
#endif
#if defined(HAVE_LIBDL)
# ifndef RTLD_LAZY
# define RTLD_LAZY 1 /* Solaris 1, FreeBSD's (2.1.7.1 and older) */
# endif
# ifndef RTLD_GLOBAL
# define RTLD_GLOBAL 0
# endif
# define DL_LOAD(libname) dlopen(libname, RTLD_LAZY | RTLD_GLOBAL)
# define DL_UNLOAD dlclose
# if defined(DLSYM_NEEDS_UNDERSCORE)
# define DL_FETCH_SYMBOL(h,s) dlsym((h), "_" ## s)
# else
# define DL_FETCH_SYMBOL dlsym
# endif
# define DL_HANDLE void *
# define ZEND_EXTENSIONS_SUPPORT 1
#elif defined(ZEND_WIN32)
# define DL_LOAD(libname) LoadLibrary(libname)
# define DL_FETCH_SYMBOL GetProcAddress
# define DL_UNLOAD FreeLibrary
# define DL_HANDLE HMODULE
# define ZEND_EXTENSIONS_SUPPORT 1
#else
# define DL_HANDLE void *
# define ZEND_EXTENSIONS_SUPPORT 0
#endif
/* AIX requires this to be the first thing in the file. */
#ifndef __GNUC__
# if HAVE_ALLOCA_H
# include <alloca.h>
# else
# ifdef _AIX
#pragma alloca
# else
# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca ();
# endif
# endif
# endif
#endif
#if (HAVE_ALLOCA || (defined (__GNUC__) && __GNUC__ >= 2)) && !(defined(ZTS) && defined(ZEND_WIN32))
# define do_alloca(p) alloca(p)
# define free_alloca(p)
#else
# define do_alloca(p) emalloc(p)
# define free_alloca(p) efree(p)
#endif
#if ZEND_DEBUG
#define ZEND_FILE_LINE_D char *__zend_filename, uint __zend_lineno
#define ZEND_FILE_LINE_DC , ZEND_FILE_LINE_D
#define ZEND_FILE_LINE_ORIG_D char *__zend_orig_filename, uint __zend_orig_lineno
#define ZEND_FILE_LINE_ORIG_DC , ZEND_FILE_LINE_ORIG_D
#define ZEND_FILE_LINE_RELAY_C __zend_filename, __zend_lineno
#define ZEND_FILE_LINE_RELAY_CC , ZEND_FILE_LINE_RELAY_C
#define ZEND_FILE_LINE_C __FILE__, __LINE__
#define ZEND_FILE_LINE_CC , ZEND_FILE_LINE_C
#define ZEND_FILE_LINE_EMPTY_C NULL, 0
#define ZEND_FILE_LINE_EMPTY_CC , ZEND_FILE_LINE_EMPTY_C
#define ZEND_FILE_LINE_ORIG_RELAY_C __zend_orig_filename, __zend_orig_lineno
#define ZEND_FILE_LINE_ORIG_RELAY_CC , ZEND_FILE_LINE_ORIG_RELAY_C
#else
#define ZEND_FILE_LINE_D
#define ZEND_FILE_LINE_DC
#define ZEND_FILE_LINE_ORIG_D
#define ZEND_FILE_LINE_ORIG_DC
#define ZEND_FILE_LINE_RELAY_C
#define ZEND_FILE_LINE_RELAY_CC
#define ZEND_FILE_LINE_C
#define ZEND_FILE_LINE_CC
#define ZEND_FILE_LINE_EMPTY_C
#define ZEND_FILE_LINE_EMPTY_CC
#define ZEND_FILE_LINE_ORIG_RELAY_C
#define ZEND_FILE_LINE_ORIG_RELAY_CC
#endif /* ZEND_DEBUG */
#ifdef ZTS
#define ZTS_V 1
#else
#define ZTS_V 0
#endif
#include "zend_errors.h"
#include "zend_alloc.h"
typedef unsigned char zend_bool;
typedef unsigned char zend_uchar;
typedef unsigned int zend_uint;
typedef unsigned long zend_ulong;
typedef unsigned short zend_ushort;
#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
#ifndef LONG_MAX
#define LONG_MAX 2147483647L
#endif
#ifndef LONG_MIN
#define LONG_MIN (- LONG_MAX - 1)
#endif
#undef SUCCESS
#undef FAILURE
#define SUCCESS 0
#define FAILURE -1 /* this MUST stay a negative number, or it may affect functions! */
#include "zend_hash.h"
#include "zend_llist.h"
#define INTERNAL_FUNCTION_PARAMETERS int ht, zval *return_value, zval *this_ptr, int return_value_used TSRMLS_DC
#define INTERNAL_FUNCTION_PARAM_PASSTHRU ht, return_value, this_ptr, return_value_used TSRMLS_CC
/*
* zval
*/
typedef struct _zval_struct zval;
typedef struct _zend_class_entry zend_class_entry;
typedef struct _zend_object {
zend_class_entry *ce;
HashTable *properties;
} zend_object;
typedef unsigned int zend_object_handle;
typedef struct _zend_object_handlers zend_object_handlers;
typedef struct _zend_object_value {
zend_object_handle handle;
zend_object_handlers *handlers;
} zend_object_value;
typedef zend_object *(*get_address_t)(zend_object_handle handle); /* Don't return zval ** so that we can't change it */
typedef zval **(*get_property_address_t)(zend_object_handle handle, zval *offset, int type);
typedef void (*add_ref_t)(zend_object_handle handle);
typedef void (*del_ref_t)(zend_object_handle handle);
typedef void (*delete_obj_t)(zend_object_handle handle);
typedef zend_object_value (*clone_obj_t)(zend_object_handle handle);
struct _zend_object_handlers {
get_address_t get_address;
get_property_address_t get_property_address;
add_ref_t add_ref;
del_ref_t del_ref;
delete_obj_t delete_obj;
clone_obj_t clone_obj;
};
#include "zend_objects.h"
typedef union _zvalue_value {
long lval; /* long value */
double dval; /* double value */
struct {
char *val;
int len;
} str;
HashTable *ht; /* hash table value */
/* struct {
zend_class_entry *ce;
HashTable *properties;
} obj;
*/
zend_object_value obj;
} zvalue_value;
struct _zval_struct {
/* Variable information */
zvalue_value value; /* value */
zend_uchar type; /* active type */
zend_uchar is_ref;
zend_ushort refcount;
};
typedef struct _zend_function_entry {
char *fname;
void (*handler)(INTERNAL_FUNCTION_PARAMETERS);
unsigned char *func_arg_types;
} zend_function_entry;
typedef struct _zend_property_reference {
int type; /* read, write or r/w */
zval *object;
zend_llist *elements_list;
} zend_property_reference;
typedef struct _zend_overloaded_element {
int type; /* array offset or object proprety */
zval element;
} zend_overloaded_element;
/* excpt.h on Digital Unix 4.0 defines function_table */
#undef function_table
/* A lot of stuff needs shifiting around in order to include zend_compile.h here */
union _zend_function;
struct _zend_class_entry {
char type;
char *name;
uint name_length;
struct _zend_class_entry *parent;
int *refcount;
zend_bool constants_updated;
HashTable function_table;
HashTable default_properties;
HashTable class_table;
HashTable *static_members;
HashTable constants_table;
zend_function_entry *builtin_functions;
union _zend_function *constructor;
union _zend_function *destructor;
union _zend_function *clone;
/* handlers */
void (*handle_function_call)(INTERNAL_FUNCTION_PARAMETERS, zend_property_reference *property_reference);
zval (*handle_property_get)(zend_property_reference *property_reference);
int (*handle_property_set)(zend_property_reference *property_reference, zval *value);
};
typedef struct _zend_utility_functions {
void (*error_function)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
int (*printf_function)(const char *format, ...);
int (*write_function)(const char *str, uint str_length);
FILE *(*fopen_function)(const char *filename, char **opened_path);
void (*message_handler)(long message, void *data);
void (*block_interruptions)(void);
void (*unblock_interruptions)(void);
int (*get_configuration_directive)(char *name, uint name_length, zval *contents);
void (*ticks_function)(int ticks);
} zend_utility_functions;
typedef struct _zend_utility_values {
char *import_use_extension;
uint import_use_extension_length;
} zend_utility_values;
typedef int (*zend_write_func_t)(const char *str, uint str_length);
#undef MIN
#undef MAX
#define MAX(a, b) (((a)>(b))?(a):(b))
#define MIN(a, b) (((a)<(b))?(a):(b))
#define ZEND_STRL(str) (str), (sizeof(str)-1)
#define ZEND_STRS(str) (str), (sizeof(str))
#define ZEND_NORMALIZE_BOOL(n) \
((n) ? (((n)>0) ? 1 : -1) : 0)
/* data types */
#define IS_NULL 0
#define IS_LONG 1
#define IS_DOUBLE 2
#define IS_STRING 3
#define IS_ARRAY 4
#define IS_OBJECT 5
#define IS_BOOL 6
#define IS_RESOURCE 7
#define IS_CONSTANT 8
#define IS_CONSTANT_ARRAY 9
/* Special data type to temporarily mark large numbers */
#define FLAG_IS_BC 10 /* for parser internal use only */
/* Ugly hack to support constants as static array indices */
#define IS_CONSTANT_INDEX 0x80
/* overloaded elements data types */
#define OE_IS_ARRAY (1<<0)
#define OE_IS_OBJECT (1<<1)
#define OE_IS_METHOD (1<<2)
/* Argument passing types */
#define BYREF_NONE 0
#define BYREF_FORCE 1
#define BYREF_ALLOW 2
#define BYREF_FORCE_REST 3
int zend_startup(zend_utility_functions *utility_functions, char **extensions, int start_builtin_functions);
void zend_shutdown(TSRMLS_D);
void zend_set_utility_values(zend_utility_values *utility_values);
BEGIN_EXTERN_C()
ZEND_API void _zend_bailout(char *filename, uint lineno);
END_EXTERN_C()
#define zend_bailout() _zend_bailout(__FILE__, __LINE__)
#define zend_try \
{ \
jmp_buf orig_bailout; \
zend_bool orig_bailout_set=EG(bailout_set); \
\
EG(bailout_set) = 1; \
memcpy(&orig_bailout, &EG(bailout), sizeof(jmp_buf)); \
if (setjmp(EG(bailout))==0)
#define zend_catch \
else
#define zend_end_try() \
memcpy(&EG(bailout), &orig_bailout, sizeof(jmp_buf)); \
EG(bailout_set) = orig_bailout_set; \
}
#define zend_first_try EG(bailout_set)=0; zend_try
ZEND_API char *get_zend_version(void);
ZEND_API void zend_make_printable_zval(zval *expr, zval *expr_copy, int *use_copy);
ZEND_API int zend_print_zval(zval *expr, int indent);
ZEND_API int zend_print_zval_ex(zend_write_func_t write_func, zval *expr, int indent);
ZEND_API void zend_print_zval_r(zval *expr, int indent);
ZEND_API void zend_print_zval_r_ex(zend_write_func_t write_func, zval *expr, int indent);
ZEND_API void zend_output_debug_string(zend_bool trigger_break, char *format, ...);
#if ZEND_DEBUG
#define Z_DBG(expr) (expr)
#else
#define Z_DBG(expr)
#endif
ZEND_API extern char *empty_string;
ZEND_API void free_estring(char **str_p);
#define STR_FREE(ptr) if (ptr && ptr!=empty_string) { efree(ptr); }
#define STR_FREE_REL(ptr) if (ptr && ptr!=empty_string) { efree_rel(ptr); }
#define STR_REALLOC(ptr, size) \
if (ptr!=empty_string) { \
ptr = (char *) erealloc(ptr, size); \
} else { \
ptr = (char *) emalloc(size); \
memset(ptr, 0, size); \
}
/* output support */
#define ZEND_WRITE(str, str_len) zend_write((str), (str_len))
#define ZEND_PUTS(str) zend_write((str), strlen((str)))
#define ZEND_PUTC(c) zend_write(&(c), 1), (c)
BEGIN_EXTERN_C()
extern ZEND_API int (*zend_printf)(const char *format, ...);
extern ZEND_API zend_write_func_t zend_write;
extern ZEND_API FILE *(*zend_fopen)(const char *filename, char **opened_path);
extern ZEND_API void (*zend_block_interruptions)(void);
extern ZEND_API void (*zend_unblock_interruptions)(void);
extern ZEND_API void (*zend_ticks_function)(int ticks);
extern ZEND_API void (*zend_error_cb)(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args);
ZEND_API void zend_error(int type, const char *format, ...);
void zenderror(char *error);
extern ZEND_API zend_class_entry zend_standard_class_def;
extern zend_utility_values zend_uv;
extern ZEND_API zval zval_used_for_init;
END_EXTERN_C()
#define ZEND_UV(name) (zend_uv.name)
#define HANDLE_BLOCK_INTERRUPTIONS() if (zend_block_interruptions) { zend_block_interruptions(); }
#define HANDLE_UNBLOCK_INTERRUPTIONS() if (zend_unblock_interruptions) { zend_unblock_interruptions(); }
BEGIN_EXTERN_C()
ZEND_API void zend_message_dispatcher(long message, void *data);
END_EXTERN_C()
ZEND_API int zend_get_configuration_directive(char *name, uint name_length, zval *contents);
/* Messages for applications of Zend */
#define ZMSG_FAILED_INCLUDE_FOPEN 1L
#define ZMSG_FAILED_REQUIRE_FOPEN 2L
#define ZMSG_FAILED_HIGHLIGHT_FOPEN 3L
#define ZMSG_MEMORY_LEAK_DETECTED 4L
#define ZMSG_MEMORY_LEAK_REPEATED 5L
#define ZMSG_LOG_SCRIPT_NAME 6L
#define ZVAL_ADDREF(pz) (++(pz)->refcount)
#define ZVAL_DELREF(pz) (--(pz)->refcount)
#define ZVAL_REFCOUNT(pz) ((pz)->refcount)
#define INIT_PZVAL(z) \
(z)->refcount = 1; \
(z)->is_ref = 0;
#define INIT_ZVAL(z) z = zval_used_for_init;
#define ALLOC_INIT_ZVAL(zp) \
ALLOC_ZVAL(zp); \
INIT_ZVAL(*zp);
#define MAKE_STD_ZVAL(zv) \
ALLOC_ZVAL(zv); \
INIT_PZVAL(zv);
#define PZVAL_IS_REF(z) ((z)->is_ref)
#define SEPARATE_ZVAL(ppzv) \
{ \
zval *orig_ptr = *(ppzv); \
\
if (orig_ptr->refcount>1) { \
orig_ptr->refcount--; \
ALLOC_ZVAL(*(ppzv)); \
**(ppzv) = *orig_ptr; \
zval_copy_ctor(*(ppzv)); \
(*(ppzv))->refcount=1; \
(*(ppzv))->is_ref = 0; \
} \
}
#define SEPARATE_ZVAL_IF_NOT_REF(ppzv) \
if (!PZVAL_IS_REF(*ppzv)) { \
SEPARATE_ZVAL(ppzv); \
}
#define SEPARATE_ZVAL_TO_MAKE_IS_REF(ppzv) \
if (!PZVAL_IS_REF(*ppzv)) { \
SEPARATE_ZVAL(ppzv); \
(*(ppzv))->is_ref = 1; \
}
#define COPY_PZVAL_TO_ZVAL(zv, pzv) \
(zv) = *(pzv); \
if ((pzv)->refcount>1) { \
zval_copy_ctor(&(zv)); \
(pzv)->refcount--; \
} else { \
FREE_ZVAL(pzv); \
} \
INIT_PZVAL(&(zv));
#define REPLACE_ZVAL_VALUE(ppzv_dest, pzv_src, copy) { \
int is_ref, refcount; \
\
SEPARATE_ZVAL_IF_NOT_REF(ppzv_dest); \
is_ref = (*ppzv_dest)->is_ref; \
refcount = (*ppzv_dest)->refcount; \
zval_dtor(*ppzv_dest); \
**ppzv_dest = *pzv_src; \
if (copy) { \
zval_copy_ctor(*ppzv_dest); \
} \
(*ppzv_dest)->is_ref = is_ref; \
(*ppzv_dest)->refcount = refcount; \
}
#define ZEND_MAX_RESERVED_RESOURCES 4
#ifdef ZEND_WIN32
/* Only use this macro if you know for sure that all of the switches values
are covered by its case statements */
#define EMPTY_SWITCH_DEFAULT_CASE() \
default: \
__assume(0); \
break;
#else
#define EMPTY_SWITCH_DEFAULT_CASE()
#endif
#endif /* ZEND_H */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
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