64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
/*ChannelAccessFactory.cpp*/
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#include <lock.h>
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#include <noDefaultMethods.h>
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#include <pvAccess.h>
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#include <pvData.h>
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#include <factory.h>
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#include <map>
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#include <vector>
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using namespace epics::pvData;
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namespace epics { namespace pvAccess {
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static ChannelAccess::shared_pointer channelAccess;
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static Mutex channelProviderMutex;
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typedef std::map<String, ChannelProvider::shared_pointer> ChannelProviderMap;
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static ChannelProviderMap channelProviders;
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class ChannelAccessImpl : public ChannelAccess {
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public:
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ChannelProvider::shared_pointer getProvider(String providerName) {
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Lock guard(channelProviderMutex);
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return channelProviders[providerName];
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}
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std::auto_ptr<stringVector_t> getProviderNames() {
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Lock guard(channelProviderMutex);
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std::auto_ptr<stringVector_t> providers(new stringVector_t());
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for (ChannelProviderMap::const_iterator i = channelProviders.begin();
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i != channelProviders.end(); i++)
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providers->push_back(i->first);
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return providers;
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}
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};
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ChannelAccess::shared_pointer getChannelAccess() {
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static Mutex mutex;
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Lock guard(mutex);
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if(channelAccess.get()==0){
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channelAccess.reset(new ChannelAccessImpl());
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}
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return channelAccess;
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}
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void registerChannelProvider(ChannelProvider::shared_pointer const & channelProvider) {
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Lock guard(channelProviderMutex);
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channelProviders[channelProvider->getProviderName()] = channelProvider;
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}
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void unregisterChannelProvider(ChannelProvider::shared_pointer const & channelProvider) {
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Lock guard(channelProviderMutex);
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channelProviders.erase(channelProvider->getProviderName());
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}
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}}
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