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OnXXXXX handlers not called in ZTS environment

php.internals

Uwe Schindler

23 years ago

When changing a ini entry with zend_alter_ini_entry during runtime the
Callback routines OnUpdateXXXX are never called. This problem only exists
in multithreaded environments.
I think that the handler field in the entry is not copied when creating the
copy of the ini entries after creating a new thread ressource:

#ifdef ZTS
ZEND_API int zend_copy_ini_directives(TSRMLS_D)
{
zend_ini_entry ini_entry;

EG(ini_directives) = (HashTable *) malloc(sizeof(HashTable));
if (zend_hash_init_ex(EG(ini_directives),
registered_zend_ini_directives->nNumOfElements, NULL, NULL, 1, 0)==FAILURE) {
return FAILURE;
}
zend_hash_copy(EG(ini_directives), registered_zend_ini_directives,
NULL, &ini_entry, sizeof(zend_ini_entry));
zend_ini_refresh_caches(ZEND_INI_STAGE_STARTUP TSRMLS_CC);
return SUCCESS;
}
#endif

I am not very familar with the Zend engine so I do not know how to
implement this, but the following command does not ever call the OnUpdate
handler:
zend_alter_ini_entry(....., PHP_INI_SYSTEM, PHP_INI_STAGE_RUNTIME)

Uwe

(Marcus Börger)

23 years ago

At 01:18 31.05.2003, Uwe Schindler wrote:

>When changing a ini entry with zend_alter_ini_entry during runtime the
>Callback routines OnUpdateXXXX are never called. This problem only exists
>in multithreaded environments.
>I think that the handler field in the entry is not copied when creating
>the copy of the ini entries after creating a new thread ressource:

The zend_hash_copy() function copies the all the information so the problem
should be elsewhere.
[...]

>I am not very familar with the Zend engine so I do not know how to
>implement this, but the following command does not ever call the OnUpdate
>handler:
>zend_alter_ini_entry(....., PHP_INI_SYSTEM, PHP_INI_STAGE_RUNTIME)

And here we go: PHP_INI_SYSTEM values cannot be set at runtime, that's
their sense.

regards
marcus

Uwe Schindler

23 years ago

Its the same in the other way without PHP_INI_SYSTEM. They get changed.
Only the handler is not called.

At 12:32 31.05.2003 +0200, you wrote:

>At 01:18 31.05.2003, Uwe Schindler wrote:
>>When changing a ini entry with zend_alter_ini_entry during runtime the
>>Callback routines OnUpdateXXXX are never called. This problem only exists
>>in multithreaded environments.
>>I think that the handler field in the entry is not copied when creating
>>the copy of the ini entries after creating a new thread ressource:
>
>The zend_hash_copy() function copies the all the information so the
>problem should be elsewhere.
>[...]
>>I am not very familar with the Zend engine so I do not know how to
>>implement this, but the following command does not ever call the OnUpdate
>>handler:
>>zend_alter_ini_entry(....., PHP_INI_SYSTEM, PHP_INI_STAGE_RUNTIME)
>
>
>And here we go: PHP_INI_SYSTEM values cannot be set at runtime, that's
>their sense.
>
>regards
>marcus

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