internals:engine

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
internals:engine [2010/06/23 17:40] – __FILE__ and __LINE (info via tony) philipinternals:engine [2017/09/22 13:28] (current) – external edit 127.0.0.1
Line 53: Line 53:
 Add your random stuff here. I'll move it/update it/fix it (Derick) Add your random stuff here. I'll move it/update it/fix it (Derick)
  
-How to get __LINE__ and __FILE__?+How to get %%__LINE__ and __FILE__%%?
   * zend_get_executed_filename() and zend_get_executed_lineno()   * zend_get_executed_filename() and zend_get_executed_lineno()
  
Line 114: Line 114:
 </code> </code>
  
-Note: do not use ZEND_INIT_MODULE_GLOBALS/ts_allocate_id. If used a shared extension, they will provoke an attempt to call the destructor after the module has been unloaded!+Note: do not use ZEND_INIT_MODULE_GLOBALS/ts_allocate_id. If used a shared extension, they will provoke an attempt to call the destructor after the module has been unloaded! Also, for all that is holy, do NOT initialize globals on MINIT (EXTNAME_G(var_ptr) = NULL), that won't work correctly in ZTS as it won't initialize the value in all threads.
  
 - Now define the constructor and destructor functions: - Now define the constructor and destructor functions:
Line 129: Line 129:
 } }
 </code> </code>
 +
 +The globals constructor and destructor are NOT execute per-request, they are part of the module startup/shutdown. The globals can store data across requests. If you need to do per-request operations to the globals, use module-activate and module-deactivate callbacks.
  
 Note: ZEND_MODULE_GLOBALS_CTOR_D will declare a function as receiving a zend_extname_globals*, not void* and zend_module_entry is supposed to contain a function pointer type that receives void*. I think this violates the C standard (the declarations are incompatible), but should however by safe since the arguments have the same size. Note: ZEND_MODULE_GLOBALS_CTOR_D will declare a function as receiving a zend_extname_globals*, not void* and zend_module_entry is supposed to contain a function pointer type that receives void*. I think this violates the C standard (the declarations are incompatible), but should however by safe since the arguments have the same size.
internals/engine.1277314831.txt.gz · Last modified: 2017/09/22 13:28 (external edit)

Page Tools