ripple::HashRouter Class Reference

Routing table for objects identified by hash. More...

Collaboration diagram for ripple::HashRouter:

Classes
class	Entry
	An entry in the routing table. More...

Public Types
using	PeerShortID = std::uint32_t

Public Member Functions
	HashRouter (Stopwatch &clock, std::chrono::seconds entryHoldTimeInSeconds)
HashRouter &	operator= (HashRouter const &)=delete
virtual	~HashRouter ()=default
void	addSuppression (uint256 const &key)
bool	addSuppressionPeer (uint256 const &key, PeerShortID peer)
std::pair< bool, std::optional< Stopwatch::time_point > >	addSuppressionPeerWithStatus (uint256 const &key, PeerShortID peer)
	Add a suppression peer and get message's relay status. More...
bool	addSuppressionPeer (uint256 const &key, PeerShortID peer, int &flags)
bool	shouldProcess (uint256 const &key, PeerShortID peer, int &flags, std::chrono::seconds tx_interval)
bool	setFlags (uint256 const &key, int flags)
	Set the flags on a hash. More...
int	getFlags (uint256 const &key)
std::optional< std::set< PeerShortID > >	shouldRelay (uint256 const &key)
	Determines whether the hashed item should be relayed. More...

Static Public Member Functions
static std::chrono::seconds	getDefaultHoldTime ()

Private Member Functions
std::pair< Entry &, bool >	emplace (uint256 const &)

Private Attributes
std::mutex	mutex_
beast::aged_unordered_map< uint256, Entry, Stopwatch::clock_type, hardened_hash< strong_hash > >	suppressionMap_
const std::chrono::seconds	holdTime_

Detailed Description

Routing table for objects identified by hash.

This table keeps track of which hashes have been received by which peers. It is used to manage the routing and broadcasting of messages in the peer to peer overlay.

Definition at line 53 of file HashRouter.h.

Member Typedef Documentation

PeerShortID

using ripple::HashRouter::PeerShortID = std::uint32_t

Definition at line 57 of file HashRouter.h.

Constructor & Destructor Documentation

HashRouter()

ripple::HashRouter::HashRouter	(	Stopwatch &	clock,
		std::chrono::seconds	entryHoldTimeInSeconds
	)

Definition at line 146 of file HashRouter.h.

~HashRouter()

virtual ripple::HashRouter::~HashRouter ( )

virtualdefault

Member Function Documentation

getDefaultHoldTime()

static std::chrono::seconds ripple::HashRouter::getDefaultHoldTime ( )

static

Definition at line 139 of file HashRouter.h.

operator=()

HashRouter& ripple::HashRouter::operator= ( HashRouter const &  )

delete

addSuppression()

void ripple::HashRouter::addSuppression

(

uint256 const &

key

)

Definition at line 43 of file HashRouter.cpp.

addSuppressionPeer() [1/2]

bool ripple::HashRouter::addSuppressionPeer	(	uint256 const &	key,
		PeerShortID	peer
	)

Definition at line 51 of file HashRouter.cpp.

addSuppressionPeerWithStatus()

std::pair< bool, std::optional< Stopwatch::time_point > > ripple::HashRouter::addSuppressionPeerWithStatus	(	uint256 const &	key,
		PeerShortID	peer
	)

Add a suppression peer and get message's relay status.

Return pair: element 1: true if the peer is added. element 2: optional is seated to the relay time point or is unseated if has not relayed yet.

Definition at line 57 of file HashRouter.cpp.

addSuppressionPeer() [2/2]

bool ripple::HashRouter::addSuppressionPeer	(	uint256 const &	key,
		PeerShortID	peer,
		int &	flags
	)

Definition at line 67 of file HashRouter.cpp.

shouldProcess()

bool ripple::HashRouter::shouldProcess	(	uint256 const &	key,
		PeerShortID	peer,
		int &	flags,
		std::chrono::seconds	tx_interval
	)

Definition at line 78 of file HashRouter.cpp.

setFlags()

bool ripple::HashRouter::setFlags	(	uint256 const &	key,
		int	flags
	)

Set the flags on a hash.

Returns

true if the flags were changed. false if unchanged.

Definition at line 102 of file HashRouter.cpp.

getFlags()

int ripple::HashRouter::getFlags

(

uint256 const &

key

)

Definition at line 94 of file HashRouter.cpp.

shouldRelay()

auto ripple::HashRouter::shouldRelay

(

uint256 const &

key

)

Determines whether the hashed item should be relayed.

Effects:

If the item should be relayed, this function will not
return `true` again until the hold time has expired.
The internal set of peers will also be reset.

Returns

A std::optional set of peers which do not need to be relayed to. If the result is uninitialized, the item should not be relayed.

Definition at line 118 of file HashRouter.cpp.

emplace()

auto ripple::HashRouter::emplace ( uint256 const &  key )

private

Definition at line 25 of file HashRouter.cpp.

Member Data Documentation

mutex_

std::mutex ripple::HashRouter::mutex_

mutableprivate

Definition at line 213 of file HashRouter.h.

suppressionMap_

beast::aged_unordered_map< uint256, Entry, Stopwatch::clock_type, hardened_hash<strong_hash> > ripple::HashRouter::suppressionMap_

private

Definition at line 221 of file HashRouter.h.

holdTime_

const std::chrono::seconds ripple::HashRouter::holdTime_

private

Definition at line 223 of file HashRouter.h.