slick::orderbook::ObserverManager Class Reference

Observer manager for notifying multiple observers Uses type erasure to support both concept-based and inheritance-based observers. More...

#include <observer.hpp>

Collaboration diagram for slick::orderbook::ObserverManager:

Public Member Functions
	ObserverManager ()=default
	~ObserverManager ()=default
	ObserverManager (const ObserverManager &)=delete
ObserverManager &	operator= (const ObserverManager &)=delete
	ObserverManager (ObserverManager &&) noexcept=default
ObserverManager &	operator= (ObserverManager &&) noexcept=default
void	addObserver (std::shared_ptr< IOrderBookObserver > observer)
	Add an observer.
bool	removeObserver (const std::shared_ptr< IOrderBookObserver > &observer)
	Remove an observer.
void	clearObservers () noexcept
	Clear all observers.
std::size_t	observerCount () const noexcept
	Get number of observers.
void	notifyPriceLevelUpdate (const PriceLevelUpdate &update) const
	Notify all observers of price level update.
void	notifyOrderUpdate (const OrderUpdate &update) const
	Notify all observers of order update.
void	notifyTrade (const Trade &trade) const
	Notify all observers of trade.
void	notifyTopOfBookUpdate (const TopOfBook &tob) const
	Notify all observers of top-of-book update.
void	notifySnapshotBegin (SymbolId symbol, uint64_t seq_num, Timestamp timestamp) const
	Notify all observers that snapshot processing is beginning.
void	notifySnapshotEnd (SymbolId symbol, uint64_t seq_num, Timestamp timestamp) const
	Notify all observers that snapshot processing is complete.

Detailed Description

Observer manager for notifying multiple observers Uses type erasure to support both concept-based and inheritance-based observers.

Definition at line 52 of file observer.hpp.

Constructor & Destructor Documentation

ObserverManager() [1/3]

slick::orderbook::ObserverManager::ObserverManager ( )

default

~ObserverManager()

slick::orderbook::ObserverManager::~ObserverManager ( )

default

ObserverManager() [2/3]

slick::orderbook::ObserverManager::ObserverManager ( const ObserverManager &  )

delete

ObserverManager() [3/3]

slick::orderbook::ObserverManager::ObserverManager ( ObserverManager &&  )

defaultnoexcept

Member Function Documentation

addObserver()

void slick::orderbook::ObserverManager::addObserver ( std::shared_ptr< IOrderBookObserver >  observer )

inline

Add an observer.

Parameters

observer

Shared pointer to observer (can be IOrderBookObserver or concept-based)

Definition at line 65 of file observer.hpp.

clearObservers()

void slick::orderbook::ObserverManager::clearObservers ( )

inlinenoexcept

Clear all observers.

Definition at line 84 of file observer.hpp.

notifyOrderUpdate()

void slick::orderbook::ObserverManager::notifyOrderUpdate ( const OrderUpdate &  update ) const

inline

Notify all observers of order update.

Definition at line 101 of file observer.hpp.

Referenced by slick::orderbook::OrderBookL3::emitSnapshot(), slick::orderbook::OrderBookL3::notifyOrderDelete(), and slick::orderbook::OrderBookL3::notifyOrderUpdate().

notifyPriceLevelUpdate()

void slick::orderbook::ObserverManager::notifyPriceLevelUpdate ( const PriceLevelUpdate &  update ) const

inline

Notify all observers of price level update.

Definition at line 94 of file observer.hpp.

Referenced by slick::orderbook::OrderBookL2::emitSnapshot(), slick::orderbook::OrderBookL3::notifyPriceLevelUpdate(), and slick::orderbook::OrderBookL2::updateLevel().

notifySnapshotBegin()

void slick::orderbook::ObserverManager::notifySnapshotBegin ( SymbolId  symbol, uint64_t  seq_num, Timestamp  timestamp  ) const

inline

Notify all observers that snapshot processing is beginning.

Definition at line 122 of file observer.hpp.

Referenced by slick::orderbook::OrderBookL2::emitSnapshot(), and slick::orderbook::OrderBookL3::emitSnapshot().

notifySnapshotEnd()

void slick::orderbook::ObserverManager::notifySnapshotEnd ( SymbolId  symbol, uint64_t  seq_num, Timestamp  timestamp  ) const

inline

Notify all observers that snapshot processing is complete.

Definition at line 129 of file observer.hpp.

Referenced by slick::orderbook::OrderBookL2::emitSnapshot(), and slick::orderbook::OrderBookL3::emitSnapshot().

notifyTopOfBookUpdate()

void slick::orderbook::ObserverManager::notifyTopOfBookUpdate ( const TopOfBook &  tob ) const

inline

Notify all observers of top-of-book update.

Definition at line 115 of file observer.hpp.

Referenced by slick::orderbook::OrderBookL2::notifyTopOfBookIfChanged(), and slick::orderbook::OrderBookL3::notifyTopOfBookIfChanged().

notifyTrade()

void slick::orderbook::ObserverManager::notifyTrade ( const Trade &  trade ) const

inline

Notify all observers of trade.

Definition at line 108 of file observer.hpp.

Referenced by slick::orderbook::OrderBookL3::notifyTrade().

observerCount()

std::size_t slick::orderbook::ObserverManager::observerCount ( ) const

inlinenoexcept

Get number of observers.

Definition at line 89 of file observer.hpp.

operator=() [1/2]

ObserverManager & slick::orderbook::ObserverManager::operator= ( const ObserverManager &  )

delete

operator=() [2/2]

ObserverManager & slick::orderbook::ObserverManager::operator= ( ObserverManager &&  )

defaultnoexcept

removeObserver()

bool slick::orderbook::ObserverManager::removeObserver ( const std::shared_ptr< IOrderBookObserver > &  observer )

inline

Remove an observer.

Parameters

observer

Observer to remove

Returns

true if observer was found and removed

Definition at line 74 of file observer.hpp.

---

The documentation for this class was generated from the following file:

• slick/orderbook/observer.hpp