| 1 | #ifndef __XIOS_CStoreFilter__ |
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| 2 | #define __XIOS_CStoreFilter__ |
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| 3 | |
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| 4 | #include "input_pin.hpp" |
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| 5 | |
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| 6 | namespace xios |
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| 7 | { |
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| 8 | class CContext; |
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| 9 | class CGrid; |
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| 10 | |
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| 11 | /*! |
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| 12 | * A terminal filter which stores all the packets it receives. |
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| 13 | */ |
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| 14 | class CStoreFilter : public CInputPin |
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| 15 | { |
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| 16 | public: |
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| 17 | /*! |
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| 18 | * Constructs the filter with one input slot and an associated |
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| 19 | * garbage collector for the specified grid and context. |
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| 20 | * |
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| 21 | * \param gc the garbage collector associated with this input pin |
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| 22 | * \param context the context to which the data belongs |
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| 23 | * \param grid the grid to which the data is attached |
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| 24 | */ |
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| 25 | CStoreFilter(CGarbageCollector& gc, CContext* context, CGrid* grid); |
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| 26 | |
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| 27 | /*! |
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| 28 | * Accesses the filter storage and retuns the packet corresponding |
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| 29 | * to the specified timestamp. If there is no packet available for |
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| 30 | * the specified timestamp, the function waits until the data is |
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| 31 | * received or a timeout occurs. |
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| 32 | * |
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| 33 | * \param timestamp the timestamp of the requested packet |
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| 34 | * \return a pointer to a read-only packet |
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| 35 | */ |
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| 36 | CConstDataPacketPtr getPacket(Time timestamp); |
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| 37 | |
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| 38 | /*! |
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| 39 | * Accesses the filter storage and retuns the data corresponding |
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| 40 | * to the specified timestamp. If there is no data available for |
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| 41 | * the specified timestamp, the function waits until the data is |
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| 42 | * received or a timeout occurs. |
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| 43 | * |
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| 44 | * \param timestamp the timestamp of the requested data |
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| 45 | * \param data the array where the data is to be copied |
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| 46 | * \return the status code associated with the data |
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| 47 | */ |
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| 48 | template <int N> |
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| 49 | CDataPacket::StatusCode getData(Time timestamp, CArray<double, N>& data); |
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| 50 | |
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| 51 | /*! |
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| 52 | * Removes all pending packets which are older than the specified timestamp. |
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| 53 | * |
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| 54 | * \param timestamp the timestamp used for invalidation |
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| 55 | */ |
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| 56 | void virtual invalidate(Time timestamp); |
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| 57 | |
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| 58 | protected: |
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| 59 | /*! |
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| 60 | * Stores the packet for later access. |
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| 61 | * |
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| 62 | * \param data a vector of packets corresponding to each slot |
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| 63 | */ |
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| 64 | void virtual onInputReady(std::vector<CDataPacketPtr> data); |
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| 65 | |
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| 66 | private: |
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| 67 | CGarbageCollector& gc; //!< The garbage collector associated to the filter |
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| 68 | CContext* context; //!< The context to which the data belongs |
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| 69 | CGrid* grid; //!< The grid attached to the data the filter can accept |
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| 70 | std::map<Time, CDataPacketPtr> packets; //<! The stored packets |
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| 71 | }; // class CStoreFilter |
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| 72 | } // namespace xios |
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| 73 | |
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| 74 | #endif //__XIOS_CStoreFilter__ |
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