17 uint32_t arg3, uint32_t arg4);
int32_t OSSwitchFiberEx(uint32_t arg1, uint32_t arg2, uint32_t arg3, uint32_t arg4, OSFiberExEntryFn entry, void *stack)
int32_t OSSwitchFiber(OSFiberEntryFn entry, void *stack)
void(* OSFiberExEntryFn)(uint32_t arg1, uint32_t arg2, uint32_t arg3, uint32_t arg4)