44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
#ifndef _SVC_CACHE_H
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#define _SVC_CACHE_H
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#include <api/service/svc_enum.h>
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#include <bfc/ptrlist.h>
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/**
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This is a caching version of SvcEnum. Upon creation, it enumerates all
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service factories in the family and keeps them in a list. Then you can
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call findService() with a search string to quickly find the service you
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want. If you don't have a search string, you can still use a SvcEnum.
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*/
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class SvcCache {
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protected:
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SvcCache(FOURCC type);
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public:
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waServiceFactory *findServiceFactory(const wchar_t *searchval);
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private:
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class waServiceFactoryCompare {
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public:
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static int compareItem(waServiceFactory *p1, waServiceFactory* p2);
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static int compareAttrib(const wchar_t *attrib, waServiceFactory *item);
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};
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PtrListQuickSorted<waServiceFactory, waServiceFactoryCompare> list;
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};
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template <class T>
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class SvcCacheT : public SvcCache {
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public:
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SvcCacheT() : SvcCache(T::getServiceType()) { }
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T *findService(const char *key, int global_lock=TRUE) {
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waServiceFactory *sf = findServiceFactory(key);
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if (sf == NULL) return NULL;
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T *ret = castService<T>(sf, global_lock);
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return ret;
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}
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};
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#endif
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