MFB

diff --git a/ext/interbase/interbase.c b/ext/interbase/interbase.c
index f5cb020c81c70598e9196a34ce37b3978be5fe39..bcb29c1ee3a5a06772243cdc3e6c9ab46427e9ec 100644 (file)
--- a/ext/interbase/interbase.c
+++ b/ext/interbase/interbase.c
@@ -696,6 +696,25 @@ PHP_RINIT_FUNCTION(ibase)
 
 PHP_MSHUTDOWN_FUNCTION(ibase)
 {
+#ifndef PHP_WIN32
+       /**
+        * When the Interbase client API library libgds.so is first loaded, it registers a call to 
+        * gds__cleanup() with atexit(), in order to clean up after itself when the process exits.
+        * This means that the library is called at process shutdown, and cannot be unloaded beforehand.
+        * PHP tries to unload modules after every request [dl()'ed modules], and right before the 
+        * process shuts down [modules loaded from php.ini]. This results in a segfault for this module.
+        * By NULLing the dlopen() handle in the module entry, Zend omits the call to dlclose(),
+        * ensuring that the module will remain present until the process exits. However, the functions
+        * and classes exported by the module will not be available until the module is 'reloaded'. 
+        * When reloaded, dlopen() will return the handle of the already loaded module. The module will
+        * be unloaded automatically when the process exits.
+        */
+       zend_module_entry *ibase_entry;
+       if (SUCCESS == zend_hash_find(&module_registry, ibase_module_entry.name, strlen(ibase_module_entry.name) +1, (void*) &ibase_entry))
+       {
+               ibase_entry->handle = NULL;
+       }
+#endif
        UNREGISTER_INI_ENTRIES();
        return SUCCESS;
 }