207 lines
6 KiB
C++
207 lines
6 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1998.
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//
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// File: EBufHdlr.Cxx
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//
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// Contents: Implementation of the CEntryBufferHandler
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//
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// Classes: CEntryBufferHandler
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//
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// History: 18-Mar-93 AmyA Created from wordlist.cxx and
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// sort.cxx
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//
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//----------------------------------------------------------------------------
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#include <pch.cxx>
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#pragma hdrstop
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#include <fdaemon.hxx>
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#include <entrybuf.hxx>
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#include "ebufhdlr.hxx"
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//+---------------------------------------------------------------------------
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//
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// Member: CEntryBufferHandler::CEntryBufferHandler, public
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//
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// Synopsis: Constructor
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//
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// Arguments: [cbMemory] -- suggested size of entry buffer
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//
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// History: 18-Mar-93 AmyA Created.
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//
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//----------------------------------------------------------------------------
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CEntryBufferHandler::CEntryBufferHandler( ULONG cbMemory,
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BYTE * buffer,
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CFilterDaemon& fDaemon,
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CiProxy & proxy,
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CPidMapper & pidMap )
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: _entryBuf ( cbMemory, buffer ),
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_wordListFull ( FALSE ),
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_filterDaemon ( fDaemon ),
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_cFilteredBlocks( 0 )
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{
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CEntryBufferHandler::FlushBuffer, private
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//
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// Synopsis: Sorts entry buffer and calls CWordList::PutEntryBuffer()
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//
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// Expects: Sentinel entry added to _entryBuf.
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//
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// History: 18-Mar-93 AmyA Created.
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//
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//----------------------------------------------------------------------------
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void CEntryBufferHandler::FlushBuffer()
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{
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_entryBuf.Sort();
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_entryBuf.Done(); // prepare buffer to be sent to kernel
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SCODE sc = _filterDaemon.FilterDataReady ( _entryBuf.GetBuffer(),
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_entryBuf.GetSize() );
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_wordListFull = (sc == FDAEMON_W_WORDLISTFULL );
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_entryBuf.ReInit();
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if ( FAILED(sc) )
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{
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ciDebugOut(( DEB_ERROR,
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"FilterDataReady call from FlushBuffer failed sc 0x%x. "
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"Buffer contents lost.\n", sc ));
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THROW( CException( sc ) );
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}
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CEntryBufferHandler::Done, public
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//
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// Synopsis: indicate end of the CEntryBufferHandler
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//
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// Effects: Flushes entry buffer, then calls CommitWordList
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//
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// History: 22-May-91 Brianb Created
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// 18-Mar-93 AmyA Moved from CWordList.
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//
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// Note: This method can not throw exceptions
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//
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//----------------------------------------------------------------------------
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void CEntryBufferHandler::Done()
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{
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TRY
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{
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_entryBuf.AddSentinel();
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if ( _entryBuf.Count() != 0 )
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{
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FlushBuffer();
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}
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}
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CATCH (CException, e)
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{
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ciDebugOut (( DEB_ERROR,
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"CEntryBufferHandler::Done failed, status=0x%x\n",
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e.GetErrorCode() ));
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}
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END_CATCH
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CEntryBufferHandler::Init, public
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//
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// Synopsis: Reinitializes class after Done has been called.
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//
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// Effects: Resets _wordListFull and calls ReInit on entry buffer
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//
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// History: 04-May-93 AmyA Created
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//
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//----------------------------------------------------------------------------
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void CEntryBufferHandler::Init()
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{
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ciDebugOut (( DEB_ITRACE | DEB_NOCOMPNAME, "CEntryBufferHandler::Init\n" ));
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_wordListFull = FALSE;
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_entryBuf.ReInit();
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CEntryBufferHandler::SetWid, public
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//
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// Synopsis: Sets the WorkId to which future AddEntry calls apply.
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//
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// Arguments: [widFake] -- fake WorkId
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//
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// History: 20-May-92 KyleP Created
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// 18-Mar-93 AmyA Moved from CWordList.
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//
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//--------------------------------------------------------------------------
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void CEntryBufferHandler::SetWid( WORKID widFake )
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{
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Win4Assert ( widFake != widInvalid );
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_CurrentWidIndex = widFake;
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}
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//+---------------------------------------------------------------------------
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//
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// Member: CEntryBufferHandler::AddEntry, public
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//
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// Synopsis: Adds an entry (key, workid, etc.) to the CEntryBuffer
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//
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// Effects: Adds a <key, propid, workid, occurrence>
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// tuple to the sort.
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//
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// Arguments: [key] -- Normalized key
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// [occ] -- Occurrence
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//
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// History: 07-Mar-91 KyleP Created.
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// 22-May-91 Brianb Changed to use own sorter
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// 07-Jun-91 BartoszM Rewrote
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// 18-Mar-93 AmyA Moved from CWordList.
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//
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//----------------------------------------------------------------------------
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void CEntryBufferHandler::AddEntry(
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const CKeyBuf & key,
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OCCURRENCE occ )
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{
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ciAssert ( key.Count() != 0 );
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ciAssert ( key.Pid() != pidInvalid );
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if ( !_entryBuf.WillFit ( key.Count() ) )
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{
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ciDebugOut (( DEB_ITRACE | DEB_NOCOMPNAME, "+" ));
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_entryBuf.AddSentinel();
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FlushBuffer();
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//
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// Check if the filtering has exceeded its space limit
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//
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_cFilteredBlocks++;
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if ( _cFilteredBlocks > _ulMaxFilteredBlocks )
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{
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ciDebugOut(( DEB_WARN, "Filtering a document has exceeded its space limit\n" ));
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QUIETTHROW( CException( FDAEMON_E_TOOMANYFILTEREDBLOCKS ) );
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}
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}
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Win4Assert ( _CurrentWidIndex != widInvalid );
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_entryBuf.AddEntry ( key.Count(),
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key.GetBuf(),
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key.Pid(),
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_CurrentWidIndex,
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occ);
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}
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