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ðŸ“„ zend.h(13.59 KB)
ðŸ“„ zend_API.h(69.44 KB)
ðŸ“„ zend_alloc.h(18.76 KB)
ðŸ“„ zend_alloc_sizes.h(2.57 KB)
ðŸ“„ zend_arena.h(5.93 KB)
ðŸ“„ zend_ast.h(11.42 KB)
ðŸ“„ zend_bitset.h(6.72 KB)
ðŸ“„ zend_build.h(1.59 KB)
ðŸ“„ zend_builtin_functions.h(1.47 KB)
ðŸ“„ zend_closures.h(2.16 KB)
ðŸ“„ zend_compile.h(42.62 KB)
ðŸ“„ zend_config.h(32 B)
ðŸ“„ zend_config.w32.h(2.55 KB)
ðŸ“„ zend_constants.h(6.15 KB)
ðŸ“„ zend_cpuinfo.h(7.06 KB)
ðŸ“„ zend_dtrace.h(1.89 KB)
ðŸ“„ zend_errors.h(2 KB)
ðŸ“„ zend_exceptions.h(3.76 KB)
ðŸ“„ zend_execute.h(16.53 KB)
ðŸ“„ zend_extensions.h(5.93 KB)
ðŸ“„ zend_float.h(15.08 KB)
ðŸ“„ zend_gc.h(2.8 KB)
ðŸ“„ zend_generators.h(7.18 KB)
ðŸ“„ zend_globals.h(7.58 KB)
ðŸ“„ zend_globals_macros.h(2.74 KB)
ðŸ“„ zend_hash.h(35.58 KB)
ðŸ“„ zend_highlight.h(2.21 KB)
ðŸ“„ zend_inheritance.h(1.98 KB)
ðŸ“„ zend_ini.h(9.59 KB)
ðŸ“„ zend_ini_parser.h(2.46 KB)
ðŸ“„ zend_ini_scanner.h(1.83 KB)
ðŸ“„ zend_ini_scanner_defs.h(225 B)
ðŸ“„ zend_interfaces.h(4.17 KB)
ðŸ“„ zend_istdiostream.h(1.5 KB)
ðŸ“„ zend_iterators.h(3.32 KB)
ðŸ“„ zend_language_parser.h(5.28 KB)
ðŸ“„ zend_language_scanner.h(2.67 KB)
ðŸ“„ zend_language_scanner_defs.h(310 B)
ðŸ“„ zend_list.h(3.39 KB)
ðŸ“„ zend_llist.h(3.7 KB)
ðŸ“„ zend_long.h(4.2 KB)
ðŸ“„ zend_map_ptr.h(3.09 KB)
ðŸ“„ zend_modules.h(4.68 KB)
ðŸ“„ zend_multibyte.h(4.75 KB)
ðŸ“„ zend_multiply.h(9.61 KB)
ðŸ“„ zend_object_handlers.h(13.19 KB)
ðŸ“„ zend_objects.h(1.76 KB)
ðŸ“„ zend_objects_API.h(4.57 KB)
ðŸ“„ zend_operators.h(33.35 KB)
ðŸ“„ zend_portability.h(19.67 KB)
ðŸ“„ zend_ptr_stack.h(4.21 KB)
ðŸ“„ zend_range_check.h(2.93 KB)
ðŸ“„ zend_signal.h(3.99 KB)
ðŸ“„ zend_smart_str.h(5.4 KB)
ðŸ“„ zend_smart_str_public.h(1.25 KB)
ðŸ“„ zend_smart_string.h(4.29 KB)
ðŸ“„ zend_smart_string_public.h(1.36 KB)
ðŸ“„ zend_sort.h(1.6 KB)
ðŸ“„ zend_stack.h(2.3 KB)
ðŸ“„ zend_stream.h(3.46 KB)
ðŸ“„ zend_string.h(17.06 KB)
ðŸ“„ zend_strtod.h(1.81 KB)
ðŸ“„ zend_strtod_int.h(3.42 KB)
ðŸ“„ zend_ts_hash.h(5.6 KB)
ðŸ“„ zend_type_info.h(3.02 KB)
ðŸ“„ zend_types.h(39.58 KB)
ðŸ“„ zend_variables.h(3.2 KB)
ðŸ“„ zend_virtual_cwd.h(12.44 KB)
ðŸ“„ zend_vm.h(1.91 KB)
ðŸ“„ zend_vm_def.h(264.93 KB)
ðŸ“„ zend_vm_execute.h(1.92 MB)
ðŸ“„ zend_vm_handlers.h(85.91 KB)
ðŸ“„ zend_vm_opcodes.h(11.8 KB)
ðŸ“„ zend_vm_trace_handlers.h(3.14 KB)
ðŸ“„ zend_vm_trace_map.h(2.59 KB)
ðŸ“„ zend_weakrefs.h(1.41 KB)

Editing: zend_arena.h

/*
   +----------------------------------------------------------------------+
   | Zend Engine                                                          |
   +----------------------------------------------------------------------+
   | Copyright (c) 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 through the world-wide-web at the following url:           |
   | 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: Dmitry Stogov <dmitry@php.net>                              |
   +----------------------------------------------------------------------+
*/

#ifndef _ZEND_ARENA_H_
#define _ZEND_ARENA_H_

#include "zend.h"

#ifndef ZEND_TRACK_ARENA_ALLOC

typedef struct _zend_arena zend_arena;

struct _zend_arena {
	char		*ptr;
	char		*end;
	zend_arena  *prev;
};

static zend_always_inline zend_arena* zend_arena_create(size_t size)
{
	zend_arena *arena = (zend_arena*)emalloc(size);

arena->ptr = (char*) arena + ZEND_MM_ALIGNED_SIZE(sizeof(zend_arena));
	arena->end = (char*) arena + size;
	arena->prev = NULL;
	return arena;
}

static zend_always_inline void zend_arena_destroy(zend_arena *arena)
{
	do {
		zend_arena *prev = arena->prev;
		efree(arena);
		arena = prev;
	} while (arena);
}

static zend_always_inline void* zend_arena_alloc(zend_arena **arena_ptr, size_t size)
{
	zend_arena *arena = *arena_ptr;
	char *ptr = arena->ptr;

size = ZEND_MM_ALIGNED_SIZE(size);

if (EXPECTED(size <= (size_t)(arena->end - ptr))) {
		arena->ptr = ptr + size;
	} else {
		size_t arena_size =
			UNEXPECTED((size + ZEND_MM_ALIGNED_SIZE(sizeof(zend_arena))) > (size_t)(arena->end - (char*) arena)) ?
				(size + ZEND_MM_ALIGNED_SIZE(sizeof(zend_arena))) :
				(size_t)(arena->end - (char*) arena);
		zend_arena *new_arena = (zend_arena*)emalloc(arena_size);

ptr = (char*) new_arena + ZEND_MM_ALIGNED_SIZE(sizeof(zend_arena));
		new_arena->ptr = (char*) new_arena + ZEND_MM_ALIGNED_SIZE(sizeof(zend_arena)) + size;
		new_arena->end = (char*) new_arena + arena_size;
		new_arena->prev = arena;
		*arena_ptr = new_arena;
	}

return (void*) ptr;
}

static zend_always_inline void* zend_arena_calloc(zend_arena **arena_ptr, size_t count, size_t unit_size)
{
	int overflow;
	size_t size;
	void *ret;

size = zend_safe_address(unit_size, count, 0, &overflow);
	if (UNEXPECTED(overflow)) {
		zend_error(E_ERROR, "Possible integer overflow in zend_arena_calloc() (%zu * %zu)", unit_size, count);
	}
	ret = zend_arena_alloc(arena_ptr, size);
	memset(ret, 0, size);
	return ret;
}

static zend_always_inline void* zend_arena_checkpoint(zend_arena *arena)
{
	return arena->ptr;
}

static zend_always_inline void zend_arena_release(zend_arena **arena_ptr, void *checkpoint)
{
	zend_arena *arena = *arena_ptr;

while (UNEXPECTED((char*)checkpoint > arena->end) ||
	       UNEXPECTED((char*)checkpoint <= (char*)arena)) {
		zend_arena *prev = arena->prev;
		efree(arena);
		*arena_ptr = arena = prev;
	}
	ZEND_ASSERT((char*)checkpoint > (char*)arena && (char*)checkpoint <= arena->end);
	arena->ptr = (char*)checkpoint;
}

static zend_always_inline zend_bool zend_arena_contains(zend_arena *arena, void *ptr)
{
	while (arena) {
		if ((char*)ptr > (char*)arena && (char*)ptr <= arena->ptr) {
			return 1;
		}
		arena = arena->prev;
	}
	return 0;
}

#else

/* Use normal allocations and keep track of them for mass-freeing.
 * This is intended for use with asan/valgrind. */

typedef struct _zend_arena zend_arena;

struct _zend_arena {
	void **ptr;
	void **end;
	struct _zend_arena *prev;
	void *ptrs[0];
};

#define ZEND_TRACKED_ARENA_SIZE 1000

static zend_always_inline zend_arena *zend_arena_create(size_t _size)
{
	zend_arena *arena = (zend_arena*) emalloc(
		sizeof(zend_arena) + sizeof(void *) * ZEND_TRACKED_ARENA_SIZE);
	arena->ptr = &arena->ptrs[0];
	arena->end = &arena->ptrs[ZEND_TRACKED_ARENA_SIZE];
	arena->prev = NULL;
	return arena;
}

static zend_always_inline void zend_arena_destroy(zend_arena *arena)
{
	do {
		zend_arena *prev = arena->prev;
		void **ptr;
		for (ptr = arena->ptrs; ptr < arena->ptr; ptr++) {
			efree(*ptr);
		}
		efree(arena);
		arena = prev;
	} while (arena);
}

static zend_always_inline void *zend_arena_alloc(zend_arena **arena_ptr, size_t size)
{
	zend_arena *arena = *arena_ptr;
	if (arena->ptr == arena->end) {
		*arena_ptr = zend_arena_create(0);
		(*arena_ptr)->prev = arena;
		arena = *arena_ptr;
	}

return *arena->ptr++ = emalloc(size);
}

static zend_always_inline void* zend_arena_calloc(zend_arena **arena_ptr, size_t count, size_t unit_size)
{
	int overflow;
	size_t size;
	void *ret;

static zend_always_inline void* zend_arena_checkpoint(zend_arena *arena)
{
	return arena->ptr;
}

static zend_always_inline void zend_arena_release(zend_arena **arena_ptr, void *checkpoint)
{
	while (1) {
		zend_arena *arena = *arena_ptr;
		zend_arena *prev = arena->prev;
		while (1) {
			if (arena->ptr == (void **) checkpoint) {
				return;
			}
			if (arena->ptr == arena->ptrs) {
				break;
			}
			arena->ptr--;
			efree(*arena->ptr);
		}
		efree(arena);
		*arena_ptr = prev;
		ZEND_ASSERT(*arena_ptr);
	}
}

static zend_always_inline zend_bool zend_arena_contains(zend_arena *arena, void *ptr)
{
	/* TODO: Dummy */
	return 1;
}

#endif

#endif /* _ZEND_ARENA_H_ */

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