txrequest.cpp File Reference

#include <txrequest.h>
#include <crypto/siphash.h>
#include <net.h>
#include <primitives/transaction.h>
#include <random.h>
#include <uint256.h>
#include <boost/multi_index/indexed_by.hpp>
#include <boost/multi_index/ordered_index.hpp>
#include <boost/multi_index/sequenced_index.hpp>
#include <boost/multi_index/tag.hpp>
#include <boost/multi_index_container.hpp>
#include <boost/tuple/tuple.hpp>
#include <chrono>
#include <unordered_map>
#include <utility>
#include <assert.h>

Include dependency graph for txrequest.cpp:

Go to the source code of this file.

Classes
class	TxRequestTracker::Impl
	Actual implementation for TxRequestTracker's data structure. More...

Enumerations
enum	State : uint8_t
	The various states a (txhash,peer) pair can be in. More...
enum	WaitState

Enumeration Type Documentation

State

enum State : uint8_t

strong

The various states a (txhash,peer) pair can be in.

Note that CANDIDATE is split up into 3 substates (DELAYED, BEST, READY), allowing more efficient implementation. Also note that the sorting order of ByTxHashView relies on the specific order of values in this enum.

Expected behaviour is:

• When first announced by a peer, the state is CANDIDATE_DELAYED until reqtime is reached.
• Announcements that have reached their reqtime but not been requested will be either CANDIDATE_READY or CANDIDATE_BEST. Neither of those has an expiration time; they remain in that state until they're requested or no longer needed. CANDIDATE_READY announcements are promoted to CANDIDATE_BEST when they're the best one left.
• When requested, an announcement will be in state REQUESTED until expiry is reached.
• If expiry is reached, or the peer replies to the request (either with NOTFOUND or the tx), the state becomes COMPLETED.

Definition at line 42 of file txrequest.cpp.

WaitState

enum WaitState

strong

Definition at line 179 of file txrequest.cpp.