interface.h

//Copyright (C) 2018 Cornell University

#pragma once

extern "C" {

void* __getInterfaceMethod(jobject obj, int intf_id_hash, void* intf_id, int method_index);

struct idv_ht_node {
	idv_ht_node* next;
	void* intf_id;
	void* idv;
};

} // extern "C"

// The hash table of interface dispatch vectors.
// representation type is actually a linked list
class idv_ht {
public:
	/**
	 * Constructor.
	 * @param capacity must be a power of 2
	 */
	idv_ht(size_t capacity);

	/**
	 * Fetch an interface dispatch vector with its precomputed hash
	 * code.
	 */
	void* get(int hashcode, void* intf_id);

	/**
	 * Add an interface dispatch vector with its precomputed hash
	 * code.
	 */
	void put(int hashcode, void* intf_id, void* idv);

private:
	idv_ht_node** table;
	size_t capacity;
	size_t getIndexForHash(int h);
};