parrotcode nci PMC
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src/pmc/nci.pmc

NAME

src/pmc/nci.pmc - Native Call Interface

DESCRIPTION

The vtable functions for the native C call functions.

METHOD get_multisig(): Return the MMD signature PMC, if any or a Null PMC.
METHOD set_raw_nci_ptr(void *func): Sets the specified function pointer and raw flag.
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.
opcode_t *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.
METHOD arity(): Return the arity of the NCI (the number of arugments).

Initial revision by sean 2002/08/04.