blob: 81846f12651520fb73b6d4f0fbfd93ca9369ed69 [file] [log] [blame]
/**
* @author: Jeff Thompson
* This is a port of py from PyCCN, written by:
* Derek Kulinski <takeda@takeda.tk>
* Jeff Burke <jburke@ucla.edu>
*
* See COPYING for copyright and distribution information.
*/
#ifndef NDN_CLOSURE_HPP
#define NDN_CLOSURE_HPP
#include "common.hpp"
namespace ndn {
enum UpcallResult {
CLOSURE_RESULT_ERR = -1, // upcall detected an error
CLOSURE_RESULT_OK = 0, // normal upcall return
CLOSURE_RESULT_REEXPRESS = 1, // reexpress the same interest again
CLOSURE_RESULT_INTEREST_CONSUMED = 2, // upcall claims to consume interest
CLOSURE_RESULT_VERIFY = 3, // force an unverified result to be verified
CLOSURE_RESULT_FETCHKEY = 4 // get the key in the key locator and re-call the interest
};
enum UpcallKind {
UPCALL_FINAL = 0, // handler is about to be deregistered
UPCALL_INTEREST = 1, // incoming interest
UPCALL_CONSUMED_INTEREST = 2, // incoming interest, someone has answered
UPCALL_DATA = 3, // incoming verified data packet
UPCALL_INTEREST_TIMED_OUT = 4, // interest timed out
UPCALL_DATA_UNVERIFIED = 5, // data packet that has not been verified
UPCALL_DATA_BAD = 6 // verification failed
};
class Node;
class Interest;
class Data;
class UpcallInfo {
public:
UpcallInfo(Node *node, ptr_lib::shared_ptr<Interest> &interest, int matchedComps, ptr_lib::shared_ptr<Data> &data)
{
node_ = node;
interest_ = interest;
data_ = data;
}
Node *getNode() { return node_; }
ptr_lib::shared_ptr<Interest> &getInterest() { return interest_; }
ptr_lib::shared_ptr<Data> &getData() { return data_; }
private:
Node *node_;
ptr_lib::shared_ptr<Interest> interest_;
ptr_lib::shared_ptr<Data> data_;
};
class Closure {
public:
virtual UpcallResult upcall(UpcallKind kind, UpcallInfo &upcallInfo) = 0;
};
}
#endif