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Date: Sat, 31 May 2003 01:18:17 +0200
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Subject: OnXXXXX handlers not called in ZTS environment
From: uwe@thetaphi.de (Uwe Schindler)

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