Last change
on this file since 653 was
639,
checked in by rlacroix, 9 years ago
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Add a basic garbage collector to ensure no packets linger in the filter graph.
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File size:
1.5 KB
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Rev | Line | |
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[639] | 1 | #ifndef __XIOS_CGarbageCollector__ |
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| 2 | #define __XIOS_CGarbageCollector__ |
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| 3 | |
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| 4 | #include <map> |
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| 5 | #include <set> |
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| 6 | |
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| 7 | #include "input_pin.hpp" |
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| 8 | |
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| 9 | namespace xios |
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| 10 | { |
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| 11 | /*! |
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| 12 | * A basic garbage collector which ensures no old packets linger in the filter graph. |
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| 13 | */ |
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| 14 | class CGarbageCollector |
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| 15 | { |
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| 16 | public: |
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| 17 | /*! |
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| 18 | * Constructs a garbage collector. |
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| 19 | */ |
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| 20 | CGarbageCollector() |
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| 21 | { /* Nothing to do */ }; |
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| 22 | |
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| 23 | /*! |
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| 24 | * Registers a filter for a specified timestamp. |
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| 25 | * |
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| 26 | * \param inputPin the input pin of the filter to register |
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| 27 | * \param timestamp the timestamp for which the filter is registered |
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| 28 | */ |
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| 29 | void registerFilter(CInputPin* inputPin, Time timestamp); |
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| 30 | |
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| 31 | /*! |
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| 32 | * Removes a filter previously registered for a specified timestamp. |
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| 33 | * |
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| 34 | * \param inputPin the input pin of the filter to unregister |
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| 35 | * \param timestamp the timestamp for which the filter is unregistered |
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| 36 | */ |
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| 37 | void unregisterFilter(CInputPin* inputPin, Time timestamp); |
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| 38 | |
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| 39 | /*! |
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| 40 | * Ensures all registered filters invalidate packets older than the specified timestamp. |
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| 41 | * |
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| 42 | * \param timestamp the timestamp used for invalidation |
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| 43 | */ |
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| 44 | void invalidate(Time timestamp); |
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| 45 | |
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| 46 | private: |
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| 47 | CGarbageCollector(const CGarbageCollector&); |
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| 48 | CGarbageCollector& operator=(const CGarbageCollector&); |
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| 49 | |
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| 50 | std::map<Time, std::set<CInputPin*> > registeredFilters; //!< Currently registered filters |
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| 51 | }; // class CGarbageCollector |
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| 52 | } // namespace xios |
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| 53 | |
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| 54 | #endif //__XIOS_CGarbageCollector__ |
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