NAME 
src/pmc/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.
Methods
METHOD PMC *get_multisig()- Return the MMD signature PMC, if any or a Null PMC.
METHOD PMC *set_raw_nci_ptr(void *func)- Sets the specified function pointer and raw flag.
void init()- Initializes the NCI with a
NULLfunction 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.
SEE ALSO
docs/pdds/pdd03_calling_conventions.pod.
HISTORY
Initial revision by sean 2002/08/04.
