| SYNOPSIS |
| #include <sys/driver_hooks.h> |
| |
| set_driver_hook(H_DEFAULT_METHOD, value) |
| |
| <value> being: |
| |
| int <name>(mixed & result, string fun, varargs args) |
| int <closure>(mixed & result, object ob, string fun, varargs args) |
| |
| DESCRIPTION |
| Optional hook to provide default implementation for unresolved |
| calls. Hook setting can be any closure, or the name of the |
| function to call in the object. |
| |
| This hook is called whenever a call_other(), call_resolved() |
| or call_out() on named function (as opposed to a closure) |
| couldn't be resolved. The hook has then the opportunity to |
| provide a default implementation. |
| |
| Exempt from this behaviour are calls to the master object, to |
| simul-efuns, and calls done with call_direct() and |
| call_direct_resolved(). |
| |
| If the hook is the name of an lfun, it is called in the target |
| object; otherwise if it is a closure, the target object is |
| passed as parameter <ob>. |
| |
| The other parameters passed are the name <fun> of the called |
| function, the arguments <args> passed to the call (if any), |
| and a reference <result> to a variable for the call result. |
| |
| If the hook can resolve the call, it has to return the call |
| result in <result> and 1 as function result. |
| |
| If the hook can not (or doesn't want to) resolve the call, it |
| has to return 0. |
| |
| |
| HISTORY |
| Introduced in LDMud 3.3.113 |
| |
| SEE ALSO |
| hooks(C) |