DpCatalog.hpp

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// ======================================================================
// \title  DpCatalog.hpp
// \author tcanham
// \brief  hpp file for DpCatalog component implementation class
// ======================================================================

#ifndef Svc_DpCatalog_HPP
#define Svc_DpCatalog_HPP

#include "Svc/DpCatalog/DpCatalogComponentAc.hpp"
#include "Svc/DpCatalog/DpRecordSerializableAc.hpp"

#include <Fw/Types/MemAllocator.hpp>

#include <DpCfg.hpp>
#include <DpCatalogCfg.hpp>
#include <Fw/Types/FileNameString.hpp>

namespace Svc {

    class DpCatalog :
        public DpCatalogComponentBase
    {

    public:

        // ----------------------------------------------------------------------
        // Component construction and destruction
        // ----------------------------------------------------------------------

        DpCatalog(
            const char* const compName 
        );

        ~DpCatalog();

        void configure(
            Fw::FileNameString directories[DP_MAX_DIRECTORIES],
            FwSizeType numDirs,
            Fw::FileNameString& stateFile,
            NATIVE_UINT_TYPE memId,
            Fw::MemAllocator& allocator
        );

        // @brief clean up component. 
        // Deallocates memory.       
        void shutdown();

    PRIVATE:

        // ----------------------------------------------------------------------
        // Handler implementations for user-defined typed input ports
        // ----------------------------------------------------------------------

        void fileDone_handler(
            NATIVE_INT_TYPE portNum, 
            const Svc::SendFileResponse& resp
        ) override;

        void pingIn_handler(
            NATIVE_INT_TYPE portNum, 
            U32 key 
        ) override;

    PRIVATE:

        // ----------------------------------------------------------------------
        // Handler implementations for commands
        // ----------------------------------------------------------------------

        void BUILD_CATALOG_cmdHandler(
            FwOpcodeType opCode, 
            U32 cmdSeq 
        ) override;

        void START_XMIT_CATALOG_cmdHandler(
            FwOpcodeType opCode, 
            U32 cmdSeq, 
            Fw::Wait wait 
        ) override;

        void STOP_XMIT_CATALOG_cmdHandler(
            FwOpcodeType opCode, 
            U32 cmdSeq 
        ) override;

        void CLEAR_CATALOG_cmdHandler(
            FwOpcodeType opCode, 
            U32 cmdSeq 
        ) override;


        // ----------------------------------
        // Private data structures
        // ----------------------------------

        struct DpStateEntry {
            FwIndexType dir; 
            DpRecord record; 
        };

        struct DpDstateFileEntry {
            bool used; 
            bool visited; 
            DpStateEntry entry; 
        };

        struct DpBtreeNode {
            DpStateEntry entry; 
            DpBtreeNode* left; 
            DpBtreeNode* right; 
        };

        // ----------------------------------
        // Private helpers
        // ----------------------------------

        bool insertEntry(DpStateEntry& entry);

        void deleteEntry(DpStateEntry& entry);

        enum CheckStat {
            CHECK_OK, 
            CHECK_CONT, 
            CHECK_ERROR, 
        };

        CheckStat checkLeftRight(bool condition, DpBtreeNode* &node, const DpStateEntry& newEntry);

        void resetBinaryTree();

        Fw::CmdResponse fillBinaryTree();

        void resetTreeStack();

        void resetStateFileData();

        void getFileState(DpStateEntry& entry);

        void pruneAndWriteStateFile();

        Fw::CmdResponse loadStateFile();

        void appendFileState(const DpStateEntry& entry);

        bool allocateNode(
            DpBtreeNode* &newNode, 
            const DpStateEntry& newEntry);

        void sendNextEntry();

        DpBtreeNode* findNextTreeNode();

        bool checkInit();

        Fw::CmdResponse doCatalogBuild();

        Fw::CmdResponse doCatalogXmit();

        // ----------------------------------
        // Private data
        // ----------------------------------
        bool m_initialized; 

        DpBtreeNode* m_dpTree; 
        DpBtreeNode* m_freeListHead; 
        DpBtreeNode* m_freeListFoot; 
        DpBtreeNode** m_traverseStack; 
        DpBtreeNode* m_currentNode; 
        DpBtreeNode* m_currentXmitNode; 

        FwSizeType m_numDpRecords; 
        FwSizeType m_numDpSlots; 

        Fw::FileNameString m_directories[DP_MAX_DIRECTORIES]; 
        FwSizeType m_numDirectories; 
        Fw::String m_fileList[DP_MAX_FILES]; 

        Fw::FileNameString m_stateFile; 
        DpDstateFileEntry* m_stateFileData; 
        FwSizeType m_stateFileEntries; 

        NATIVE_UINT_TYPE m_memSize; 
        void* m_memPtr; 
        NATIVE_UINT_TYPE m_allocatorId; 
        Fw::MemAllocator* m_allocator; 

        bool m_xmitInProgress; 
        FwIndexType m_currStackEntry; 
        Fw::FileNameString m_currXmitFileName; 
        bool m_xmitCmdWait; 
        U64 m_xmitBytes; 
        FwOpcodeType m_xmitOpCode; 
        U32 m_xmitCmdSeq; 

    };

}

#endif