archive/php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2025-08-15 21:48:51 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Merge branch 'PHP-8.0'

Browse source 
* PHP-8.0:
  Fixed bug #81070
This commit is contained in:
Nikita Popov 2021-05-31 15:24:29 +02:00
commit b4559e7ae4
4 changed files with 32 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

9
Zend/tests/bug81070.phpt Normal file
View file

@ -0,0 +1,9 @@
--TEST--
Bug #81070 Setting memory limit to below current usage
--FILE--
<?php
$a = str_repeat("0", 5 * 1024 * 1024);
ini_set("memory_limit", "3M");
?>
--EXPECTF--
Warning: Failed to set memory limit to 3145728 bytes (Current memory usage is %d bytes) in %s on line %d

15
Zend/zend_alloc.c
View file

@ -2658,11 +2658,24 @@ ZEND_API char* ZEND_FASTCALL zend_strndup(const char *s, size_t length)
return p;
}
ZEND_API zend_result zend_set_memory_limit_ex(size_t memory_limit)
{
#if ZEND_MM_LIMIT
if (memory_limit < ZEND_MM_CHUNK_SIZE) {
memory_limit = ZEND_MM_CHUNK_SIZE;
}
if (UNEXPECTED(memory_limit < AG(mm_heap)->real_size)) {
return FAILURE;
}
AG(mm_heap)->limit = memory_limit;
#endif
return SUCCESS;
}
ZEND_API void zend_set_memory_limit(size_t memory_limit)
{
#if ZEND_MM_LIMIT
AG(mm_heap)->limit = (memory_limit >= ZEND_MM_CHUNK_SIZE) ? memory_limit : ZEND_MM_CHUNK_SIZE;
AG(mm_heap)->limit = memory_limit >= ZEND_MM_CHUNK_SIZE ? memory_limit : ZEND_MM_CHUNK_SIZE;
#endif
}

1
Zend/zend_alloc.h
View file

@ -220,6 +220,7 @@ ZEND_API void * __zend_realloc(void *p, size_t len) ZEND_ATTRIBUTE_ALLOC_SIZE(2)
#define pestrdup_rel(s, persistent) ((persistent)?strdup(s):estrdup_rel(s))
ZEND_API void zend_set_memory_limit(size_t memory_limit);
ZEND_API zend_result zend_set_memory_limit_ex(size_t memory_limit);
ZEND_API void start_memory_manager(void);
ZEND_API void shutdown_memory_manager(bool silent, bool full_shutdown);

11
main/main.c
View file

@ -266,12 +266,17 @@ static PHP_INI_MH(OnSetSerializePrecision)
/* {{{ PHP_INI_MH */
static PHP_INI_MH(OnChangeMemoryLimit)
{
size_t value;
if (new_value) {
PG(memory_limit) = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
value = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
} else {
PG(memory_limit) = Z_L(1)<<30; /* effectively, no limit */
value = Z_L(1)<<30; /* effectively, no limit */
}
zend_set_memory_limit(PG(memory_limit));
if (zend_set_memory_limit_ex(value) == FAILURE) {
zend_error(E_WARNING, "Failed to set memory limit to %zd bytes (Current memory usage is %zd bytes)", value, zend_memory_usage(true));
return FAILURE;
}
PG(memory_limit) = value;
return SUCCESS;
}
/* }}} */