NAME

classes/nci.pmc - Native Call Interface

DESCRIPTION

The vtable functions for the native C call functions.

Invoking an NCI function changes some registers according to PDD 3.

The caller has to preserve registers if needed.

void init(): Initializes the NCI with a NULL function pointer.
void set_pointer_keyed_str(STRING *key, void *func): Sets the specified function pointer and signature (*key).
void destroy(): Destroys the NCI, freeing any allocated memory.
PMC *clone(): Creates and returns a clone of the NCI.
INTVAL defined(): Returns whether the NCI is defined.
void *invoke(void *next): Calls the associated C function, returning *next. If the invocant is a class, the PMC arguments are shifted down.
INTVAL get_integer(): Returns the function pointer as an integer.
INTVAL get_bool(): Returns the boolean value of the pointer.

Initial revision by sean 2002/08/04.

parrotcode: Native Call Interface
Contents \| PMCs