79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
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#include "Multicaster.h"
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bool Multicaster::subscribe (MulticastObserver *observer, std::string address)
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{
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AddressSpace::iterator it = m_addresses.find (address);
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if (it == m_addresses.end ())
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{
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m_addresses.insert (std::pair<std::string, Subscriptions> (address, Subscriptions ()));
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it = m_addresses.find (address);
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if (it == m_addresses.end ())
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return false;
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}
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(*it).second.push_back (observer);
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return true;
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}
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bool Multicaster::unsubscribe (MulticastObserver *observer, std::string address)
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{
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AddressSpace::iterator it = m_addresses.find (address);
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if (it == m_addresses.end ())
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return false;
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unsubscribe ((*it).second, observer);
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return true;
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}
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bool Multicaster::publish (MulticastObserver *publisher, std::string address, Value value)
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{
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AddressSpace::iterator it = m_addresses.find (address);
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if (it == m_addresses.end ())
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return false;
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Subscriptions& subscriptions = (*it).second;
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for (Subscriptions::iterator subit = subscriptions.begin ();
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subit != subscriptions.end ();
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++subit) {
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MulticastObserver *subscriber = *subit;
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if (subscriber != publisher)
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subscriber->accept (address, value);
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}
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return true;
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}
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void Multicaster::unsubscribeFromAll (MulticastObserver *observer)
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{
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for (AddressSpace::iterator it = m_addresses.begin ();
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it != m_addresses.end ();
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++it)
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unsubscribe ((*it).second, observer);
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}
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void Multicaster::unsubscribe (Subscriptions& subscriptions, MulticastObserver *observerToRemove)
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{
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for (Subscriptions::iterator it = subscriptions.begin (); it != subscriptions.end (); ) {
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if (*it == observerToRemove)
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it = subscriptions.erase (it);
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else
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it++;
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}
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}
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