25501592414

Committed 07 May 2026 02:19PM UTC coverage: 95.023% (-0.01%) from 95.033%

Build # 25501592414

Build Type

Pull #370

github

Committed by

web-flow

Commit Message

Merge ba89f72cf into 808abb25e

Pull Request Pull Request #370: fix cache key collision

Coverage Stats

37 of 41 new or added lines in 2 files covered. (90.24%)

1 existing line in 1 file now uncovered.

2864 of 3014 relevant lines covered (95.02%)

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Source File
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97.6

/src/cache.c

/*
  +----------------------------------------------------------------------+
  | parallel                                                             |
  +----------------------------------------------------------------------+
  | Copyright (c) Joe Watkins 2019-2024                                  |
  +----------------------------------------------------------------------+
  | 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:           |
  | http://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.               |
  +----------------------------------------------------------------------+
  | Author: krakjoe                                                      |
  +----------------------------------------------------------------------+
 */
#ifndef HAVE_PARALLEL_CACHE
#define HAVE_PARALLEL_CACHE

#include "parallel.h"

static struct {
        pthread_mutex_t mutex;
        HashTable       table;
        struct {
                size_t size;
                size_t used;
                void  *mem;
                void  *block;
        } memory;
} php_parallel_cache_globals = {PTHREAD_MUTEX_INITIALIZER};

#define PCG(e) php_parallel_cache_globals.e
#define PCM(e) PCG(memory).e

#define PARALLEL_CACHE_CHUNK PARALLEL_PLATFORM_ALIGNED((1024 * 1024) * 8)

/* {{{ */
static zend_always_inline void *php_parallel_cache_alloc(size_t size)
{
        void  *mem;
        size_t aligned = PARALLEL_PLATFORM_ALIGNED(size);

        ZEND_ASSERT(size < PARALLEL_CACHE_CHUNK);

        if ((PCM(used) + aligned) >= PCM(size)) {
                PCM(size) = PARALLEL_PLATFORM_ALIGNED(PCM(size) + PARALLEL_CACHE_CHUNK);
                PCM(mem) = (void *)realloc(PCM(mem), PCM(size));

                if (!PCM(mem)) {
                        /* out of memory */
                        return NULL;
                }

                PCM(block) = (void *)(((char *)PCM(mem)) + PCM(used));
        }

        mem = PCM(block);
        PCM(block) = (void *)(((char *)PCM(block)) + aligned);
        PCM(used) += aligned;

        return mem;
}

static zend_always_inline void *php_parallel_cache_copy_mem(void *source, zend_long size)
{
        void *destination = php_parallel_cache_alloc(size);

        memcpy(destination, source, size);

        return destination;
} /* }}} */

static zend_always_inline HashTable *php_parallel_cache_statics(HashTable *statics)
{ /* {{{ */
        HashTable *cached = zend_hash_index_find_ptr(&PCG(table), (zend_ulong)statics);

        if (cached) {
                return cached;
        }

        cached = php_parallel_copy_hash_persistent(statics, php_parallel_copy_string_interned, php_parallel_cache_copy_mem,
                                                   PHP_PARALLEL_COPY_STORAGE_CACHE_POOL);

        return zend_hash_index_update_ptr(&PCG(table), (zend_ulong)statics, cached);
} /* }}} */

static zend_always_inline void php_parallel_cache_type(zend_type *type)
{ /* {{{ */
        zend_type *single;

        if (!ZEND_TYPE_IS_SET(*type)) {
                return;
        }

        if (ZEND_TYPE_HAS_LIST(*type)) {
                zend_type_list *list = ZEND_TYPE_LIST(*type);

                list = php_parallel_cache_copy_mem(list, ZEND_TYPE_LIST_SIZE(list->num_types));

                if (ZEND_TYPE_USES_ARENA(*type)) {
                        ZEND_TYPE_FULL_MASK(*type) &= ~_ZEND_TYPE_ARENA_BIT;
                }

                ZEND_TYPE_SET_PTR(*type, list);
        }

        ZEND_TYPE_FOREACH(*type, single)
        {
                if (ZEND_TYPE_HAS_NAME(*single)) {
                        zend_string *name = ZEND_TYPE_NAME(*single);

                        ZEND_TYPE_SET_PTR(*single, php_parallel_copy_string_interned(name));
                }
        }
        ZEND_TYPE_FOREACH_END();
} /* }}} */

/* {{{ */
static zend_op_array *php_parallel_cache_create(const zend_function *source, bool statics)
{
        zend_op_array *cached = php_parallel_cache_copy_mem((void *)source, sizeof(zend_op_array));
        uint32_t      *literal_map = NULL;
        uint32_t      *offset_map = NULL;
        uint32_t       new_last_literal = cached->last_literal;

        cached->fn_flags |= ZEND_ACC_IMMUTABLE;

        if (statics && cached->static_variables) {
                cached->static_variables = php_parallel_cache_statics(cached->static_variables);
        }

#if PHP_VERSION_ID >= 80200
        ZEND_MAP_PTR_INIT(cached->static_variables_ptr, cached->static_variables);
#else
        ZEND_MAP_PTR_INIT(cached->static_variables_ptr, &cached->static_variables);
#endif

        ZEND_MAP_PTR_INIT(cached->run_time_cache, NULL);

#if PHP_VERSION_ID >= 80100
        if (cached->num_dynamic_func_defs) {
                uint32_t it = 0;

                cached->dynamic_func_defs = php_parallel_cache_copy_mem(
                    cached->dynamic_func_defs, sizeof(zend_op_array *) * cached->num_dynamic_func_defs);

                while (it < cached->num_dynamic_func_defs) {
                        cached->dynamic_func_defs[it] =
                            (zend_op_array *)php_parallel_cache_create((zend_function *)cached->dynamic_func_defs[it], statics);
                        it++;
                }
        }
#endif

        if (!cached->refcount) {
                goto _php_parallel_cached_function_return;
        }

        cached->refcount = NULL;

        if (cached->last_literal) {
                zend_op *src_opline = source->op_array.opcodes;
                zend_op *src_end = src_opline + source->op_array.last;

                // A map to keep track of which literals are referenced by the
                // `ZEND_INIT_FCALL` opcodes we found so that we can expand those later
                literal_map = emalloc(sizeof(uint32_t) * cached->last_literal);
                memset(literal_map, 0, sizeof(uint32_t) * cached->last_literal);

                // Search for `ZEND_INIT_FCALL` opcodes and remember the indexes for the
                // literals, as we are rewriting them later to `ZEND_INIT_FCALL_BY_NAME`
                // which requires a second, lower cased literal just in the next literal
                // slot.
                while (src_opline < src_end) {
                        if (src_opline->opcode == ZEND_INIT_FCALL && src_opline->op2_type == IS_CONST) {
                                uint32_t idx;
#if ZEND_USE_ABS_CONST_ADDR
                                idx = (zval *)src_opline->op2.zv - source->op_array.literals;
#else
                                idx = ((zval *)((char *)src_opline + src_opline->op2.constant) - source->op_array.literals);
#endif
                                if (idx < cached->last_literal) {
                                        if (literal_map[idx] == 0) {
                                                literal_map[idx] = 1;
                                                new_last_literal++;
                                        }
                                }
                        }
                        src_opline++;
                }
        }

        if (new_last_literal) {
                zval    *literal = source->op_array.literals;
                zval    *slot = php_parallel_cache_alloc(sizeof(zval) * new_last_literal);
                uint32_t idx = 0;

                offset_map = emalloc(sizeof(uint32_t) * cached->last_literal);

                cached->literals = slot;

                for (uint32_t i = 0; i < cached->last_literal; i++) {
                        /* Record the mapping from old literal index (i) to new literal index (idx)
                           so we can update opcode operands later. */
                        offset_map[i] = idx;

                        if (Z_TYPE_P(literal) == IS_ARRAY) {
                                ZVAL_ARR(slot, php_parallel_copy_hash_persistent(Z_ARRVAL_P(literal), php_parallel_copy_string_interned,
                                                                                 php_parallel_cache_copy_mem,
                                                                                 PHP_PARALLEL_COPY_STORAGE_CACHE_POOL));
                        } else if (Z_TYPE_P(literal) == IS_STRING) {
                                ZVAL_STR(slot, php_parallel_copy_string_interned(Z_STR_P(literal)));
                        } else {
                                *slot = *literal;
                        }

                        Z_TYPE_FLAGS_P(slot) &= ~(IS_TYPE_REFCOUNTED | IS_TYPE_COLLECTABLE);

                        /* If this literal was used by INIT_FCALL, insert its lowercased version next. */
                        if (literal_map[i]) {
                                zend_string *lower = zend_string_tolower(Z_STR_P(slot));
                                slot++;
                                idx++;
                                ZVAL_STR(slot, php_parallel_copy_string_interned(lower));
                                zend_string_release(lower);
                                Z_TYPE_FLAGS_P(slot) &= ~(IS_TYPE_REFCOUNTED | IS_TYPE_COLLECTABLE);
                        }

                        literal++;
                        slot++;
                        idx++;
                }
                cached->last_literal = new_last_literal;
        }

        if (cached->last_var) {
                zend_string **vars = cached->vars;
                uint32_t      it = 0, end = cached->last_var;
                zend_string **heap = php_parallel_cache_alloc(cached->last_var * sizeof(zend_string *));

                while (it < end) {
                        heap[it] = php_parallel_copy_string_interned(vars[it]);
                        it++;
                }
                cached->vars = heap;
        }

        if (cached->last) {
                zend_op *opcodes = php_parallel_cache_copy_mem(cached->opcodes, sizeof(zend_op) * cached->last);
                zend_op *opline = opcodes, *end = opline + cached->last;

                while (opline < end) {
                        /* Replace ZEND_INIT_FCALL with ZEND_INIT_FCALL_BY_NAME.
                           We must clear op1_type (IS_UNUSED) and op1.var (0) to invalidate the
                           original thread's cache slot. */
                        if (opline->opcode == ZEND_INIT_FCALL) {
                                opline->opcode = ZEND_INIT_FCALL_BY_NAME;
                                opline->op1_type = IS_UNUSED;
                                opline->op1.var = 0;
                                ZEND_VM_SET_OPCODE_HANDLER(opline);
                        }

                        /* Remap IS_CONST operands to their new locations in the expanded literal table
                           using the offset_map we built earlier. */
                        if (opline->op1_type == IS_CONST) {
                                uint32_t idx;
                                zend_op *src_opline = source->op_array.opcodes + (opline - opcodes);
#if ZEND_USE_ABS_CONST_ADDR
                                idx = (zval *)src_opline->op1.zv - source->op_array.literals;
                                opline->op1.zv = &cached->literals[offset_map[idx]];
#else
                                idx = ((zval *)((char *)src_opline + src_opline->op1.constant) - source->op_array.literals);
                                opline->op1.constant = (char *)&cached->literals[offset_map[idx]] - (char *)opline;
#endif
                                if (opline->opcode == ZEND_SEND_VAL || opline->opcode == ZEND_SEND_VAL_EX ||
                                    opline->opcode == ZEND_QM_ASSIGN) {
                                        zend_vm_set_opcode_handler_ex(opline, 0, 0, 0);
                                }
                        }
                        if (opline->op2_type == IS_CONST) {
                                uint32_t idx;
                                zend_op *src_opline = source->op_array.opcodes + (opline - opcodes);
#if ZEND_USE_ABS_CONST_ADDR
                                idx = (zval *)src_opline->op2.zv - source->op_array.literals;
                                opline->op2.zv = &cached->literals[offset_map[idx]];
#else
                                idx = ((zval *)((char *)src_opline + src_opline->op2.constant) - source->op_array.literals);
                                opline->op2.constant = (char *)&cached->literals[offset_map[idx]] - (char *)opline;
#endif
                        }
#if ZEND_USE_ABS_JMP_ADDR
                        switch (opline->opcode) {
                        case ZEND_JMP:
                        case ZEND_FAST_CALL:
                                opline->op1.jmp_addr = &opcodes[opline->op1.jmp_addr - source->op_array.opcodes];
                                break;
#if PHP_VERSION_ID < 80200
                        case ZEND_JMPZNZ:
#endif
                        case ZEND_JMPZ:
                        case ZEND_JMPNZ:
                        case ZEND_JMPZ_EX:
                        case ZEND_JMPNZ_EX:
                        case ZEND_JMP_SET:
                        case ZEND_COALESCE:
                        case ZEND_FE_RESET_R:
                        case ZEND_FE_RESET_RW:
                        case ZEND_ASSERT_CHECK:
                                opline->op2.jmp_addr = &opcodes[opline->op2.jmp_addr - source->op_array.opcodes];
                                break;

                        case ZEND_CATCH:
                                if (!(opline->extended_value & ZEND_LAST_CATCH)) {
                                        opline->op2.jmp_addr = &opcodes[opline->op2.jmp_addr - source->op_array.opcodes];
                                }
                                break;
                        }
#endif

                        opline++;
                }
                cached->opcodes = opcodes;
        }

        if (literal_map) {
                efree(literal_map);
        }

        if (offset_map) {
                efree(offset_map);
        }

        if (cached->arg_info) {
                zend_arg_info *it = cached->arg_info, *end = it + cached->num_args, *info;

                if (cached->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
                        it--;
                }
                if (cached->fn_flags & ZEND_ACC_VARIADIC) {
                        end++;
                }

                cached->arg_info = info = php_parallel_cache_copy_mem(it, (end - it) * sizeof(zend_arg_info));

                while (it < end) {
                        if (info->name) {
                                info->name = php_parallel_copy_string_interned(it->name);
                        }

                        php_parallel_cache_type(&info->type);

                        info++;
                        it++;
                }
                if (cached->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {
                        cached->arg_info++;
                }
        }

        if (cached->try_catch_array) {
                cached->try_catch_array = php_parallel_cache_copy_mem(cached->try_catch_array,
                                                                      sizeof(zend_try_catch_element) * cached->last_try_catch);
        }

        if (cached->live_range) {
                cached->live_range =
                    php_parallel_cache_copy_mem(cached->live_range, sizeof(zend_live_range) * cached->last_live_range);
        }

        if (cached->function_name)
                cached->function_name = php_parallel_copy_string_interned(cached->function_name);

        if (cached->filename)
                cached->filename = php_parallel_copy_string_interned(cached->filename);

        if (cached->doc_comment)
                cached->doc_comment = php_parallel_copy_string_interned(cached->doc_comment);

_php_parallel_cached_function_return:
        return cached;
} /* }}} */

/* {{{ */
static zend_always_inline zend_function *php_parallel_cache_function_ex(const zend_function *source, bool statics)
{
        zend_op_array *cached;

        pthread_mutex_lock(&PCG(mutex));

        if ((cached = zend_hash_index_find_ptr(&PCG(table), (zend_ulong)source->op_array.opcodes))) {
#if PHP_VERSION_ID >= 80400
                /* On PHP 8.4+ closures have unique names like {closure:file.php:42}.
                 * Validate that the cached entry matches the source to detect when
                 * the allocator reuses an opcodes address for a different closure (#309). */
                if (!zend_string_equals(cached->function_name, source->op_array.function_name)) {
                        goto _php_parallel_cached_function_create;
                }
#endif
                goto _php_parallel_cached_function_return;
        }

#if PHP_VERSION_ID >= 80400
_php_parallel_cached_function_create:
#endif
        cached = php_parallel_cache_create(source, statics);

        zend_hash_index_update_ptr(&PCG(table), (zend_ulong)source->op_array.opcodes, cached);

_php_parallel_cached_function_return:
        pthread_mutex_unlock(&PCG(mutex));

        return (zend_function *)cached;
} /* }}} */

zend_function *php_parallel_cache_closure(const zend_function *source, zend_function *closure)
{ /* {{{ */
        zend_op_array *cache;

        cache = (zend_op_array *)php_parallel_cache_function_ex((zend_function *)source, 0);

        if (!closure) {
                closure = php_parallel_copy_mem(cache, sizeof(zend_op_array), 1);
        } else {
                memcpy(closure, cache, sizeof(zend_op_array));
        }

        if (source->op_array.static_variables) {
                HashTable *statics = ZEND_MAP_PTR_GET(source->op_array.static_variables_ptr);

                if (statics) {
                        closure->op_array.static_variables = php_parallel_copy_hash_ctor(statics, 1);

#if PHP_VERSION_ID >= 80200
                        ZEND_MAP_PTR_INIT(closure->op_array.static_variables_ptr, closure->op_array.static_variables);
#else
                        ZEND_MAP_PTR_INIT(closure->op_array.static_variables_ptr, &closure->op_array.static_variables);
#endif
                }
        }

#if PHP_VERSION_ID >= 80100
        if (source->op_array.num_dynamic_func_defs) {
                uint32_t it = 0;
                /* Use regular persistent memory for dynamic_func_defs array, not cache pool */
                closure->op_array.dynamic_func_defs =
                    pemalloc(sizeof(zend_op_array *) * source->op_array.num_dynamic_func_defs, 1);
                memcpy(closure->op_array.dynamic_func_defs, source->op_array.dynamic_func_defs,
                       sizeof(zend_op_array *) * source->op_array.num_dynamic_func_defs);
                while (it < source->op_array.num_dynamic_func_defs) {
                        closure->op_array.dynamic_func_defs[it] = (zend_op_array *)php_parallel_cache_closure(
                            (zend_function *)source->op_array.dynamic_func_defs[it], NULL);
                        it++;
                }
        }
#endif

        return closure;
} /* }}} */

zend_function *php_parallel_cache_function(const zend_function *source)
{ /* {{{ */
        return php_parallel_cache_function_ex(source, 1);
} /* }}} */

/* {{{ */
PHP_MINIT_FUNCTION(PARALLEL_CACHE)
{
        zend_hash_init(&PCG(table), 32, NULL, NULL, 1);

        PCM(size) = PARALLEL_CACHE_CHUNK;
        PCM(mem) = PCM(block) = malloc(PCM(size));

        if (!PCM(mem)) {
                /* out of memory */
        }

        return SUCCESS;
}

PHP_MSHUTDOWN_FUNCTION(PARALLEL_CACHE)
{
        zend_hash_destroy(&PCG(table));

        if (PCM(mem))
                free(PCM(mem));

        return SUCCESS;
} /* }}} */
#endif

1	/*
2	+----------------------------------------------------------------------+
3	\| parallel \|
4	+----------------------------------------------------------------------+
5	\| Copyright (c) Joe Watkins 2019-2024 \|
6	+----------------------------------------------------------------------+
7	\| This source file is subject to version 3.01 of the PHP license, \|
8	\| that is bundled with this package in the file LICENSE, and is \|
9	\| available through the world-wide-web at the following url: \|
10	\| http://www.php.net/license/3_01.txt \|
11	\| If you did not receive a copy of the PHP license and are unable to \|
12	\| obtain it through the world-wide-web, please send a note to \|
13	\| license@php.net so we can mail you a copy immediately. \|
14	+----------------------------------------------------------------------+
15	\| Author: krakjoe \|
16	+----------------------------------------------------------------------+
17	*/
18	#ifndef HAVE_PARALLEL_CACHE
19	#define HAVE_PARALLEL_CACHE
20
21	#include "parallel.h"
22
23	static struct {
24	pthread_mutex_t mutex;
25	HashTable table;
26	struct {
27	size_t size;
28	size_t used;
29	void *mem;
30	void *block;
31	} memory;
32	} php_parallel_cache_globals = {PTHREAD_MUTEX_INITIALIZER};
33
34	#define PCG(e) php_parallel_cache_globals.e
35	#define PCM(e) PCG(memory).e
36
37	#define PARALLEL_CACHE_CHUNK PARALLEL_PLATFORM_ALIGNED((1024 * 1024) * 8)
38
39	/* {{{ */
40	static zend_always_inline void *php_parallel_cache_alloc(size_t size)	1,354✔
41	{
42	void *mem;	1,354✔
43	size_t aligned = PARALLEL_PLATFORM_ALIGNED(size);	1,354✔
44
45	ZEND_ASSERT(size < PARALLEL_CACHE_CHUNK);	1,354✔
46
47	if ((PCM(used) + aligned) >= PCM(size)) {	1,354✔
NEW 48	PCM(size) = PARALLEL_PLATFORM_ALIGNED(PCM(size) + PARALLEL_CACHE_CHUNK);	×
NEW 49	PCM(mem) = (void *)realloc(PCM(mem), PCM(size));	×
50
NEW 51	if (!PCM(mem)) {	×
52	/* out of memory */
53	return NULL;
54	}
55
NEW 56	PCM(block) = (void )(((char )PCM(mem)) + PCM(used));	×
57	}
58
59	mem = PCM(block);	1,354✔
60	PCM(block) = (void )(((char )PCM(block)) + aligned);	1,354✔
61	PCM(used) += aligned;	1,354✔
62
63	return mem;	1,354✔
64	}
65
66	static zend_always_inline void php_parallel_cache_copy_mem(void source, zend_long size)	1,116✔
67	{
68	void *destination = php_parallel_cache_alloc(size);	27✔
69
70	memcpy(destination, source, size);	1,089✔
71
72	return destination;	1,116✔
73	} /* }}} */
74
75	static zend_always_inline HashTable php_parallel_cache_statics(HashTable statics)	7✔
76	{ /* {{{ */
77	HashTable *cached = zend_hash_index_find_ptr(&PCG(table), (zend_ulong)statics);	14✔
78
UNCOV 79	if (cached) {	×
80	return cached;
81	}
82
83	cached = php_parallel_copy_hash_persistent(statics, php_parallel_copy_string_interned, php_parallel_cache_copy_mem,	7✔
84	PHP_PARALLEL_COPY_STORAGE_CACHE_POOL);
85
86	return zend_hash_index_update_ptr(&PCG(table), (zend_ulong)statics, cached);	7✔
87	} /* }}} */
88
89	static zend_always_inline void php_parallel_cache_type(zend_type *type)	45✔
90	{ /* {{{ */
91	zend_type *single;	45✔
92
93	if (!ZEND_TYPE_IS_SET(*type)) {	45✔
94	return;
95	}
96
97	if (ZEND_TYPE_HAS_LIST(*type)) {	25✔
98	zend_type_list list = ZEND_TYPE_LIST(type);	1✔
99
100	list = php_parallel_cache_copy_mem(list, ZEND_TYPE_LIST_SIZE(list->num_types));	1✔
101
102	if (ZEND_TYPE_USES_ARENA(*type)) {	1✔
103	ZEND_TYPE_FULL_MASK(*type) &= ~_ZEND_TYPE_ARENA_BIT;	1✔
104	}
105
106	ZEND_TYPE_SET_PTR(*type, list);	1✔
107	}
108
109	ZEND_TYPE_FOREACH(*type, single)	25✔
110	{
111	if (ZEND_TYPE_HAS_NAME(*single)) {	26✔
112	zend_string name = ZEND_TYPE_NAME(single);	15✔
113
114	ZEND_TYPE_SET_PTR(*single, php_parallel_copy_string_interned(name));	15✔
115	}
116	}
117	ZEND_TYPE_FOREACH_END();	26✔
118	} /* }}} */
119
120	/* {{{ */
121	static zend_op_array php_parallel_cache_create(const zend_function source, bool statics)	820✔
122	{
123	zend_op_array cached = php_parallel_cache_copy_mem((void )source, sizeof(zend_op_array));	820✔
124	uint32_t *literal_map = NULL;	820✔
125	uint32_t *offset_map = NULL;	820✔
126	uint32_t new_last_literal = cached->last_literal;	820✔
127
128	cached->fn_flags \|= ZEND_ACC_IMMUTABLE;	820✔
129
130	if (statics && cached->static_variables) {	820✔
131	cached->static_variables = php_parallel_cache_statics(cached->static_variables);	14✔
132	}
133
134	#if PHP_VERSION_ID >= 80200
135	ZEND_MAP_PTR_INIT(cached->static_variables_ptr, cached->static_variables);	423✔
136	#else
137	ZEND_MAP_PTR_INIT(cached->static_variables_ptr, &cached->static_variables);	397✔
138	#endif
139
140	ZEND_MAP_PTR_INIT(cached->run_time_cache, NULL);	820✔
141
142	#if PHP_VERSION_ID >= 80100
143	if (cached->num_dynamic_func_defs) {	699✔
144	uint32_t it = 0;	60✔
145
146	cached->dynamic_func_defs = php_parallel_cache_copy_mem(	120✔
147	cached->dynamic_func_defs, sizeof(zend_op_array ) cached->num_dynamic_func_defs);	60✔
148
149	while (it < cached->num_dynamic_func_defs) {	130✔
150	cached->dynamic_func_defs[it] =	140✔
151	(zend_op_array )php_parallel_cache_create((zend_function )cached->dynamic_func_defs[it], statics);	70✔
152	it++;	70✔
153	}
154	}
155	#endif
156
157	if (!cached->refcount) {	820✔
158	goto _php_parallel_cached_function_return;	674✔
159	}
160
161	cached->refcount = NULL;	146✔
162
163	if (cached->last_literal) {	146✔
164	zend_op *src_opline = source->op_array.opcodes;	146✔
165	zend_op *src_end = src_opline + source->op_array.last;	146✔
166
167	// A map to keep track of which literals are referenced by the
168	// `ZEND_INIT_FCALL` opcodes we found so that we can expand those later
169	literal_map = emalloc(sizeof(uint32_t) * cached->last_literal);	146✔
170	memset(literal_map, 0, sizeof(uint32_t) * cached->last_literal);	146✔
171
172	// Search for `ZEND_INIT_FCALL` opcodes and remember the indexes for the
173	// literals, as we are rewriting them later to `ZEND_INIT_FCALL_BY_NAME`
174	// which requires a second, lower cased literal just in the next literal
175	// slot.
176	while (src_opline < src_end) {	1,128✔
177	if (src_opline->opcode == ZEND_INIT_FCALL && src_opline->op2_type == IS_CONST) {	982✔
178	uint32_t idx;	46✔
179	#if ZEND_USE_ABS_CONST_ADDR
180	idx = (zval *)src_opline->op2.zv - source->op_array.literals;
181	#else
182	idx = ((zval )((char )src_opline + src_opline->op2.constant) - source->op_array.literals);	46✔
183	#endif
184	if (idx < cached->last_literal) {	46✔
185	if (literal_map[idx] == 0) {	46✔
186	literal_map[idx] = 1;	46✔
187	new_last_literal++;	46✔
188	}
189	}
190	}
191	src_opline++;	982✔
192	}
193	}
194
195	if (new_last_literal) {	146✔
196	zval *literal = source->op_array.literals;	146✔
197	zval slot = php_parallel_cache_alloc(sizeof(zval) new_last_literal);	146✔
198	uint32_t idx = 0;	146✔
199
200	offset_map = emalloc(sizeof(uint32_t) * cached->last_literal);	146✔
201
202	cached->literals = slot;	146✔
203
204	for (uint32_t i = 0; i < cached->last_literal; i++) {	734✔
205	/* Record the mapping from old literal index (i) to new literal index (idx)
206	so we can update opcode operands later. */
207	offset_map[i] = idx;	588✔
208
209	if (Z_TYPE_P(literal) == IS_ARRAY) {	588✔
210	ZVAL_ARR(slot, php_parallel_copy_hash_persistent(Z_ARRVAL_P(literal), php_parallel_copy_string_interned,	7✔
211	php_parallel_cache_copy_mem,
212	PHP_PARALLEL_COPY_STORAGE_CACHE_POOL));
213	} else if (Z_TYPE_P(literal) == IS_STRING) {	581✔
214	ZVAL_STR(slot, php_parallel_copy_string_interned(Z_STR_P(literal)));	337✔
215	} else {
216	slot = literal;	244✔
217	}
218
219	Z_TYPE_FLAGS_P(slot) &= ~(IS_TYPE_REFCOUNTED \| IS_TYPE_COLLECTABLE);	588✔
220
221	/* If this literal was used by INIT_FCALL, insert its lowercased version next. */
222	if (literal_map[i]) {	588✔
223	zend_string *lower = zend_string_tolower(Z_STR_P(slot));	46✔
224	slot++;	46✔
225	idx++;	46✔
226	ZVAL_STR(slot, php_parallel_copy_string_interned(lower));	46✔
227	zend_string_release(lower);	46✔
228	Z_TYPE_FLAGS_P(slot) &= ~(IS_TYPE_REFCOUNTED \| IS_TYPE_COLLECTABLE);	46✔
229	}
230
231	literal++;	588✔
232	slot++;	588✔
233	idx++;	588✔
234	}
235	cached->last_literal = new_last_literal;	146✔
236	}
237
238	if (cached->last_var) {	146✔
239	zend_string **vars = cached->vars;	92✔
240	uint32_t it = 0, end = cached->last_var;	92✔
241	zend_string *heap = php_parallel_cache_alloc(cached->last_var sizeof(zend_string *));	92✔
242
243	while (it < end) {	218✔
244	heap[it] = php_parallel_copy_string_interned(vars[it]);	126✔
245	it++;	126✔
246	}
247	cached->vars = heap;	92✔
248	}
249
250	if (cached->last) {	146✔
251	zend_op opcodes = php_parallel_cache_copy_mem(cached->opcodes, sizeof(zend_op) cached->last);	146✔
252	zend_op opline = opcodes, end = opline + cached->last;	146✔
253
254	while (opline < end) {	1,128✔
255	/* Replace ZEND_INIT_FCALL with ZEND_INIT_FCALL_BY_NAME.
256	We must clear op1_type (IS_UNUSED) and op1.var (0) to invalidate the
257	original thread's cache slot. */
258	if (opline->opcode == ZEND_INIT_FCALL) {	982✔
259	opline->opcode = ZEND_INIT_FCALL_BY_NAME;	46✔
260	opline->op1_type = IS_UNUSED;	46✔
261	opline->op1.var = 0;	46✔
262	ZEND_VM_SET_OPCODE_HANDLER(opline);	46✔
263	}
264
265	/* Remap IS_CONST operands to their new locations in the expanded literal table
266	using the offset_map we built earlier. */
267	if (opline->op1_type == IS_CONST) {	982✔
268	uint32_t idx;	308✔
269	zend_op *src_opline = source->op_array.opcodes + (opline - opcodes);	308✔
270	#if ZEND_USE_ABS_CONST_ADDR
271	idx = (zval *)src_opline->op1.zv - source->op_array.literals;
272	opline->op1.zv = &cached->literals[offset_map[idx]];
273	#else
274	idx = ((zval )((char )src_opline + src_opline->op1.constant) - source->op_array.literals);	308✔
275	opline->op1.constant = (char )&cached->literals[offset_map[idx]] - (char )opline;	308✔
276	#endif
277	if (opline->opcode == ZEND_SEND_VAL \|\| opline->opcode == ZEND_SEND_VAL_EX \|\|	308✔
278	opline->opcode == ZEND_QM_ASSIGN) {
279	zend_vm_set_opcode_handler_ex(opline, 0, 0, 0);	45✔
280	}
281	}
282	if (opline->op2_type == IS_CONST) {	982✔
283	uint32_t idx;	174✔
284	zend_op *src_opline = source->op_array.opcodes + (opline - opcodes);	174✔
285	#if ZEND_USE_ABS_CONST_ADDR
286	idx = (zval *)src_opline->op2.zv - source->op_array.literals;
287	opline->op2.zv = &cached->literals[offset_map[idx]];
288	#else
289	idx = ((zval )((char )src_opline + src_opline->op2.constant) - source->op_array.literals);	174✔
290	opline->op2.constant = (char )&cached->literals[offset_map[idx]] - (char )opline;	174✔
291	#endif
292	}
293	#if ZEND_USE_ABS_JMP_ADDR
294	switch (opline->opcode) {
295	case ZEND_JMP:
296	case ZEND_FAST_CALL:
297	opline->op1.jmp_addr = &opcodes[opline->op1.jmp_addr - source->op_array.opcodes];
298	break;
299	#if PHP_VERSION_ID < 80200
300	case ZEND_JMPZNZ:
301	#endif
302	case ZEND_JMPZ:
303	case ZEND_JMPNZ:
304	case ZEND_JMPZ_EX:
305	case ZEND_JMPNZ_EX:
306	case ZEND_JMP_SET:
307	case ZEND_COALESCE:
308	case ZEND_FE_RESET_R:
309	case ZEND_FE_RESET_RW:
310	case ZEND_ASSERT_CHECK:
311	opline->op2.jmp_addr = &opcodes[opline->op2.jmp_addr - source->op_array.opcodes];
312	break;
313
314	case ZEND_CATCH:
315	if (!(opline->extended_value & ZEND_LAST_CATCH)) {
316	opline->op2.jmp_addr = &opcodes[opline->op2.jmp_addr - source->op_array.opcodes];
317	}
318	break;
319	}
320	#endif
321
322	opline++;	982✔
323	}
324	cached->opcodes = opcodes;	146✔
325	}
326
327	if (literal_map) {	146✔
328	efree(literal_map);	146✔
329	}
330
331	if (offset_map) {	146✔
332	efree(offset_map);	146✔
333	}
334
335	if (cached->arg_info) {	146✔
336	zend_arg_info it = cached->arg_info, end = it + cached->num_args, *info;	37✔
337
338	if (cached->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {	37✔
339	it--;	6✔
340	}
341	if (cached->fn_flags & ZEND_ACC_VARIADIC) {	37✔
342	end++;	2✔
343	}
344
345	cached->arg_info = info = php_parallel_cache_copy_mem(it, (end - it) * sizeof(zend_arg_info));	37✔
346
347	while (it < end) {	82✔
348	if (info->name) {	45✔
349	info->name = php_parallel_copy_string_interned(it->name);	39✔
350	}
351
352	php_parallel_cache_type(&info->type);	45✔
353
354	info++;	45✔
355	it++;	45✔
356	}
357	if (cached->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {	37✔
358	cached->arg_info++;	6✔
359	}
360	}
361
362	if (cached->try_catch_array) {	146✔
363	cached->try_catch_array = php_parallel_cache_copy_mem(cached->try_catch_array,	6✔
364	sizeof(zend_try_catch_element) * cached->last_try_catch);	6✔
365	}
366
367	if (cached->live_range) {	146✔
368	cached->live_range =	38✔
369	php_parallel_cache_copy_mem(cached->live_range, sizeof(zend_live_range) * cached->last_live_range);	38✔
370	}
371
372	if (cached->function_name)	146✔
373	cached->function_name = php_parallel_copy_string_interned(cached->function_name);	146✔
374
375	if (cached->filename)	146✔
376	cached->filename = php_parallel_copy_string_interned(cached->filename);	146✔
377
378	if (cached->doc_comment)	146✔
379	cached->doc_comment = php_parallel_copy_string_interned(cached->doc_comment);	1✔
380
381	_php_parallel_cached_function_return:	145✔
382	return cached;	820✔
383	} /* }}} */
384
385	/* {{{ */
386	static zend_always_inline zend_function php_parallel_cache_function_ex(const zend_function source, bool statics)	976✔
387	{
388	zend_op_array *cached;	976✔
389
390	pthread_mutex_lock(&PCG(mutex));	976✔
391
392	if ((cached = zend_hash_index_find_ptr(&PCG(table), (zend_ulong)source->op_array.opcodes))) {	1,202✔
393	#if PHP_VERSION_ID >= 80400
394	/* On PHP 8.4+ closures have unique names like {closure:file.php:42}.
395	* Validate that the cached entry matches the source to detect when
396	* the allocator reuses an opcodes address for a different closure (#309). */
397	if (!zend_string_equals(cached->function_name, source->op_array.function_name)) {
398	goto _php_parallel_cached_function_create;
399	}
400	#endif
401	goto _php_parallel_cached_function_return;	226✔
402	}
403
404	#if PHP_VERSION_ID >= 80400
405	_php_parallel_cached_function_create:
406	#endif
407	cached = php_parallel_cache_create(source, statics);	750✔
408
409	zend_hash_index_update_ptr(&PCG(table), (zend_ulong)source->op_array.opcodes, cached);	750✔
410
411	_php_parallel_cached_function_return:	976✔
412	pthread_mutex_unlock(&PCG(mutex));	976✔
413
414	return (zend_function *)cached;	976✔
415	} /* }}} */
416
417	zend_function php_parallel_cache_closure(const zend_function source, zend_function *closure)	964✔
418	{ /* {{{ */
419	zend_op_array *cache;	964✔
420
421	cache = (zend_op_array )php_parallel_cache_function_ex((zend_function )source, 0);	964✔
422
423	if (!closure) {	964✔
424	closure = php_parallel_copy_mem(cache, sizeof(zend_op_array), 1);	741✔
425	} else {
426	memcpy(closure, cache, sizeof(zend_op_array));	223✔
427	}
428
429	if (source->op_array.static_variables) {	964✔
430	HashTable *statics = ZEND_MAP_PTR_GET(source->op_array.static_variables_ptr);	228✔
431
432	if (statics) {	228✔
433	closure->op_array.static_variables = php_parallel_copy_hash_ctor(statics, 1);	183✔
434
435	#if PHP_VERSION_ID >= 80200
436	ZEND_MAP_PTR_INIT(closure->op_array.static_variables_ptr, closure->op_array.static_variables);	93✔
437	#else
438	ZEND_MAP_PTR_INIT(closure->op_array.static_variables_ptr, &closure->op_array.static_variables);	90✔
439	#endif
440	}
441	}
442
443	#if PHP_VERSION_ID >= 80100
444	if (source->op_array.num_dynamic_func_defs) {	821✔
445	uint32_t it = 0;	65✔
446	/* Use regular persistent memory for dynamic_func_defs array, not cache pool */
447	closure->op_array.dynamic_func_defs =	130✔
448	pemalloc(sizeof(zend_op_array ) source->op_array.num_dynamic_func_defs, 1);	65✔
449	memcpy(closure->op_array.dynamic_func_defs, source->op_array.dynamic_func_defs,	205✔
450	sizeof(zend_op_array ) source->op_array.num_dynamic_func_defs);	65✔
451	while (it < source->op_array.num_dynamic_func_defs) {	140✔
452	closure->op_array.dynamic_func_defs[it] = (zend_op_array *)php_parallel_cache_closure(	150✔
453	(zend_function *)source->op_array.dynamic_func_defs[it], NULL);	75✔
454	it++;	75✔
455	}
456	}
457	#endif
458
459	return closure;	964✔
460	} /* }}} */
461
462	zend_function php_parallel_cache_function(const zend_function source)	12✔
463	{ /* {{{ */
464	return php_parallel_cache_function_ex(source, 1);	12✔
465	} /* }}} */
466
467	/* {{{ */
468	PHP_MINIT_FUNCTION(PARALLEL_CACHE)	1,078✔
469	{
470	zend_hash_init(&PCG(table), 32, NULL, NULL, 1);	1,078✔
471
472	PCM(size) = PARALLEL_CACHE_CHUNK;	1,078✔
473	PCM(mem) = PCM(block) = malloc(PCM(size));	1,078✔
474
475	if (!PCM(mem)) {	1,078✔
476	/* out of memory */
477	}	1,078✔
478
479	return SUCCESS;	1,078✔
480	}
481
482	PHP_MSHUTDOWN_FUNCTION(PARALLEL_CACHE)	1,078✔
483	{
484	zend_hash_destroy(&PCG(table));	1,078✔
485
486	if (PCM(mem))	1,078✔
487	free(PCM(mem));	1,078✔
488
489	return SUCCESS;	1,078✔
490	} /* }}} */
491	#endif

krakjoe / parallel / 25501592414

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