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Name	Size	Permission
zend.h	12.57 KB	-rw-r--r--
zend_API.h	59.08 KB	-rw-r--r--
zend_alloc.h	18.84 KB	-rw-r--r--
zend_alloc_sizes.h	2.71 KB	-rw-r--r--
zend_arena.h	3.71 KB	-rw-r--r--
zend_ast.h	8.26 KB	-rw-r--r--
zend_bitset.h	6.93 KB	-rw-r--r--
zend_build.h	1.73 KB	-rw-r--r--
zend_builtin_functions.h	1.63 KB	-rw-r--r--
zend_closures.h	2.09 KB	-rw-r--r--
zend_compile.h	32.72 KB	-rw-r--r--
zend_config.h	107 B	-rw-r--r--
zend_config.nw.h	2.49 KB	-rw-r--r--
zend_constants.h	5.9 KB	-rw-r--r--
zend_dtrace.h	2.05 KB	-rw-r--r--
zend_errors.h	2.16 KB	-rw-r--r--
zend_exceptions.h	3.87 KB	-rw-r--r--
zend_execute.h	14.17 KB	-rw-r--r--
zend_extensions.h	5.98 KB	-rw-r--r--
zend_float.h	15.33 KB	-rw-r--r--
zend_gc.h	5.02 KB	-rw-r--r--
zend_generators.h	7.39 KB	-rw-r--r--
zend_globals.h	7.18 KB	-rw-r--r--
zend_globals_macros.h	2.76 KB	-rw-r--r--
zend_hash.h	33.75 KB	-rw-r--r--
zend_highlight.h	2.37 KB	-rw-r--r--
zend_inheritance.h	1.96 KB	-rw-r--r--
zend_ini.h	9.48 KB	-rw-r--r--
zend_ini_parser.h	2.69 KB	-rw-r--r--
zend_ini_scanner.h	1.99 KB	-rw-r--r--
zend_ini_scanner_defs.h	224 B	-rw-r--r--
zend_interfaces.h	4.32 KB	-rw-r--r--
zend_istdiostream.h	1.66 KB	-rw-r--r--
zend_iterators.h	3.55 KB	-rw-r--r--
zend_language_parser.h	7.96 KB	-rw-r--r--
zend_language_scanner.h	2.77 KB	-rw-r--r--
zend_language_scanner_defs.h	297 B	-rw-r--r--
zend_list.h	3.22 KB	-rw-r--r--
zend_llist.h	3.86 KB	-rw-r--r--
zend_long.h	4.36 KB	-rw-r--r--
zend_modules.h	4.84 KB	-rw-r--r--
zend_multibyte.h	4.88 KB	-rw-r--r--
zend_multiply.h	9.42 KB	-rw-r--r--
zend_object_handlers.h	9.22 KB	-rw-r--r--
zend_objects.h	1.88 KB	-rw-r--r--
zend_objects_API.h	3.48 KB	-rw-r--r--
zend_operators.h	30.76 KB	-rw-r--r--
zend_portability.h	14.97 KB	-rw-r--r--
zend_ptr_stack.h	4.28 KB	-rw-r--r--
zend_range_check.h	3.08 KB	-rw-r--r--
zend_signal.h	4.05 KB	-rw-r--r--
zend_smart_str.h	5.13 KB	-rw-r--r--
zend_smart_str_public.h	1.4 KB	-rw-r--r--
zend_smart_string.h	4.89 KB	-rw-r--r--
zend_smart_string_public.h	1.52 KB	-rw-r--r--
zend_sort.h	1.76 KB	-rw-r--r--
zend_stack.h	2.46 KB	-rw-r--r--
zend_stream.h	3.38 KB	-rw-r--r--
zend_string.h	14.62 KB	-rw-r--r--
zend_strtod.h	1.97 KB	-rw-r--r--
zend_strtod_int.h	3.56 KB	-rw-r--r--
zend_ts_hash.h	6.56 KB	-rw-r--r--
zend_type_info.h	3.18 KB	-rw-r--r--
zend_types.h	33.04 KB	-rw-r--r--
zend_variables.h	4.67 KB	-rw-r--r--
zend_virtual_cwd.h	12.37 KB	-rw-r--r--
zend_vm.h	1.98 KB	-rw-r--r--
zend_vm_def.h	253.24 KB	-rw-r--r--
zend_vm_execute.h	2.2 MB	-rw-r--r--
zend_vm_opcodes.h	12.64 KB	-rw-r--r--

Code Editor : zend_gc.h

/*
   +----------------------------------------------------------------------+
   | Zend Engine                                                          |
   +----------------------------------------------------------------------+
   | Copyright (c) 1998-2018 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: David Wang <planetbeing@gmail.com>                          |
   |          Dmitry Stogov <dmitry@zend.com>                             |
   +----------------------------------------------------------------------+
*/

/* $Id$ */

#ifndef ZEND_GC_H
#define ZEND_GC_H

#ifndef GC_BENCH
# define GC_BENCH 0
#endif

#if GC_BENCH
# define GC_BENCH_INC(counter) GC_G(counter)++
# define GC_BENCH_DEC(counter) GC_G(counter)--
# define GC_BENCH_PEAK(peak, counter) do {		\
		if (GC_G(counter) > GC_G(peak)) {		\
			GC_G(peak) = GC_G(counter);			\
		}										\
	} while (0)
#else
# define GC_BENCH_INC(counter)
# define GC_BENCH_DEC(counter)
# define GC_BENCH_PEAK(peak, counter)
#endif

#define GC_COLOR  0xc000

#define GC_BLACK  0x0000
#define GC_WHITE  0x8000
#define GC_GREY   0x4000
#define GC_PURPLE 0xc000

#define GC_ADDRESS(v) \
	((v) & ~GC_COLOR)
#define GC_INFO_GET_COLOR(v) \
	(((zend_uintptr_t)(v)) & GC_COLOR)
#define GC_INFO_SET_ADDRESS(v, a) \
	do {(v) = ((v) & GC_COLOR) | (a);} while (0)
#define GC_INFO_SET_COLOR(v, c) \
	do {(v) = ((v) & ~GC_COLOR) | (c);} while (0)
#define GC_INFO_SET_BLACK(v) \
	do {(v) = (v) & ~GC_COLOR;} while (0)
#define GC_INFO_SET_PURPLE(v) \
	do {(v) = (v) | GC_COLOR;} while (0)

typedef struct _gc_root_buffer {
	zend_refcounted          *ref;
	struct _gc_root_buffer   *next;     /* double-linked list               */
	struct _gc_root_buffer   *prev;
	uint32_t                 refcount;
} gc_root_buffer;

#define GC_NUM_ADDITIONAL_ENTRIES \
	((4096 - ZEND_MM_OVERHEAD - sizeof(void*) * 2) / sizeof(gc_root_buffer))

typedef struct _gc_additional_bufer gc_additional_buffer;

struct _gc_additional_bufer {
	uint32_t              used;
	gc_additional_buffer *next;
	gc_root_buffer        buf[GC_NUM_ADDITIONAL_ENTRIES];
};

typedef struct _zend_gc_globals {
	zend_bool         gc_enabled;
	zend_bool         gc_active;
	zend_bool         gc_full;

gc_root_buffer   *buf;				/* preallocated arrays of buffers   */
	gc_root_buffer    roots;			/* list of possible roots of cycles */
	gc_root_buffer   *unused;			/* list of unused buffers           */
	gc_root_buffer   *first_unused;		/* pointer to first unused buffer   */
	gc_root_buffer   *last_unused;		/* pointer to last unused buffer    */

gc_root_buffer    to_free;			/* list to free                     */
	gc_root_buffer   *next_to_free;

uint32_t gc_runs;
	uint32_t collected;

#if GC_BENCH
	uint32_t root_buf_length;
	uint32_t root_buf_peak;
	uint32_t zval_possible_root;
	uint32_t zval_buffered;
	uint32_t zval_remove_from_buffer;
	uint32_t zval_marked_grey;
#endif

gc_additional_buffer *additional_buffer;

} zend_gc_globals;

#ifdef ZTS
BEGIN_EXTERN_C()
ZEND_API extern int gc_globals_id;
END_EXTERN_C()
#define GC_G(v) ZEND_TSRMG(gc_globals_id, zend_gc_globals *, v)
#else
#define GC_G(v) (gc_globals.v)
extern ZEND_API zend_gc_globals gc_globals;
#endif

BEGIN_EXTERN_C()
ZEND_API extern int (*gc_collect_cycles)(void);

ZEND_API void ZEND_FASTCALL gc_possible_root(zend_refcounted *ref);
ZEND_API void ZEND_FASTCALL gc_remove_from_buffer(zend_refcounted *ref);
ZEND_API void gc_globals_ctor(void);
ZEND_API void gc_globals_dtor(void);
ZEND_API void gc_init(void);
ZEND_API void gc_reset(void);

/* The default implementation of the gc_collect_cycles callback. */
ZEND_API int  zend_gc_collect_cycles(void);
END_EXTERN_C()

#define GC_REMOVE_FROM_BUFFER(p) do { \
		zend_refcounted *_p = (zend_refcounted*)(p); \
		if (GC_ADDRESS(GC_INFO(_p))) { \
			gc_remove_from_buffer(_p); \
		} \
	} while (0)

#define GC_MAY_LEAK(ref) \
	((GC_TYPE_INFO(ref) & \
		(GC_INFO_MASK | (GC_COLLECTABLE << GC_FLAGS_SHIFT))) == \
	(GC_COLLECTABLE << GC_FLAGS_SHIFT))

static zend_always_inline void gc_check_possible_root(zend_refcounted *ref)
{
	if (GC_TYPE(ref) == IS_REFERENCE) {
		zval *zv = &((zend_reference*)ref)->val;

if (!Z_REFCOUNTED_P(zv)) {
			return;
		}
		ref = Z_COUNTED_P(zv);
	}
	if (UNEXPECTED(GC_MAY_LEAK(ref))) {
		gc_possible_root(ref);
	}
}

#endif /* ZEND_GC_H */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * indent-tabs-mode: t
 * End:
 * vim600: sw=4 ts=4 fdm=marker
 * vim<600: sw=4 ts=4
 */

${this.title}

Code Editor : zend_gc.h