282 lines
8.0 KiB
Plaintext
282 lines
8.0 KiB
Plaintext
/*
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* Harbour Project source code:
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* MEMVAR save/restore functions with >10 long variable name support.
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*
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* Copyright 2010 Viktor Szakats (vszakats.net/harbour)
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* www - http://harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING.txt. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#include "hbmemvar.ch"
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#include "error.ch"
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#include "fileio.ch"
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/*
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* 0xC0, 'H', 'B', 'V' followed two-byte version number in Little Endian order.
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* Corresponding magic(5) rule:
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*
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* 0 string \xc0HBV Harbour variable dump file
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* >4 leshort x version %d
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*
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* Until such time that the serialized format changes, and handling of
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* previously-saved files is required, only a naive approach of using
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* version 1 is taken.
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*/
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#define _HBMEM_EXT ".hbv"
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#define _HBMEM_SIG_LEN 6
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#define _HBMEM_SIGNATURE ( ;
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hb_BChar( 0xC0 ) + ;
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hb_BChar( 0x48 ) + ;
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hb_BChar( 0x42 ) + ;
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hb_BChar( 0x56 ) + ;
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hb_BChar( 0x01 ) + ;
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hb_BChar( 0x00 ) )
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FUNCTION hb_mvSave( cFileName, cMask, lIncludeMask )
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LOCAL nCount
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LOCAL xValue
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LOCAL cName
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LOCAL nScope
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LOCAL lMatch
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LOCAL aVars
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LOCAL fhnd
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LOCAL tmp
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LOCAL oError
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LOCAL xRecover
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LOCAL nRetries
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IF HB_ISSTRING( cFileName )
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IF Set( _SET_DEFEXTENSIONS )
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cFileName := hb_FNameExtSetDef( cFileName, _HBMEM_EXT )
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ENDIF
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IF ! HB_ISSTRING( cMask ) .OR. ;
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Empty( cMask ) .OR. Left( cMask, 1 ) == "*"
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cMask := "*"
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ENDIF
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hb_default( @lIncludeMask, .T. )
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aVars := {}
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FOR EACH nScope IN { HB_MV_PUBLIC, HB_MV_PRIVATE }
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nCount := __mvDbgInfo( nScope )
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FOR tmp := 1 TO nCount
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xValue := __mvDbgInfo( nScope, tmp, @cName )
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IF ValType( xValue ) $ "CNDTL"
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lMatch := hb_WildMatchI( cMask, cName )
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IF iif( lIncludeMask, lMatch, ! lMatch )
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AAdd( aVars, { cName, xValue } )
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ENDIF
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ENDIF
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NEXT
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NEXT
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nRetries := 0
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DO WHILE .T.
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fhnd := hb_FCreate( cFileName, FC_NORMAL, FO_CREAT + FO_TRUNC + FO_READWRITE + FO_EXCLUSIVE )
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IF fhnd == F_ERROR
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oError := ErrorNew()
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oError:severity := ES_ERROR
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oError:genCode := EG_OPEN
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oError:subSystem := "BASE"
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oError:subCode := 2006
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oError:canRetry := .T.
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oError:canDefault := .T.
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oError:fileName := cFileName
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oError:osCode := FError()
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oError:tries := ++nRetries
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xRecover := Eval( ErrorBlock(), oError )
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IF HB_ISLOGICAL( xRecover ) .AND. xRecover
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LOOP
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ENDIF
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ENDIF
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EXIT
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ENDDO
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IF fhnd != F_ERROR
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FWrite( fhnd, _HBMEM_SIGNATURE )
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FWrite( fhnd, hb_Serialize( aVars ) )
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FClose( fhnd )
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ENDIF
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ELSE
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oError := ErrorNew()
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oError:severity := ES_ERROR
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oError:genCode := EG_ARG
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oError:subSystem := "BASE"
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oError:subCode := 2008
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oError:canRetry := .F.
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oError:canDefault := .F.
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oError:Args := hb_AParams()
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oError:operation := ProcName()
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Eval( ErrorBlock(), oError )
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ENDIF
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RETURN NIL
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FUNCTION hb_mvRestore( cFileName, lAdditive, cMask, lIncludeMask )
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LOCAL item
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LOCAL cName
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LOCAL lMatch
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LOCAL aVars
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LOCAL cBuffer
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LOCAL xValue
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LOCAL fhnd
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LOCAL oError
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LOCAL xRecover
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LOCAL nRetries
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IF HB_ISSTRING( cFileName )
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hb_default( @lAdditive, .T. )
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IF ! lAdditive
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__mvClear()
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ENDIF
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IF Set( _SET_DEFEXTENSIONS )
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cFileName := hb_FNameExtSetDef( cFileName, _HBMEM_EXT )
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ENDIF
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IF ! HB_ISSTRING( cFileName ) .OR. ;
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Empty( cMask ) .OR. Left( cMask, 1 ) == "*"
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cMask := "*"
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ENDIF
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hb_default( @lIncludeMask, .T. )
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nRetries := 0
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DO WHILE .T.
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fhnd := FOpen( cFileName, FO_READ )
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IF fhnd == F_ERROR
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oError := ErrorNew()
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oError:severity := ES_ERROR
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oError:genCode := EG_OPEN
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oError:subSystem := "BASE"
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oError:subCode := 2005
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oError:canRetry := .T.
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oError:canDefault := .T.
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oError:fileName := cFileName
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oError:osCode := FError()
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oError:tries := ++nRetries
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xRecover := Eval( ErrorBlock(), oError )
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IF HB_ISLOGICAL( xRecover ) .AND. xRecover
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LOOP
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ENDIF
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ENDIF
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EXIT
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ENDDO
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IF fhnd == F_ERROR
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RETURN .F.
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ENDIF
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xValue := NIL
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cBuffer := Space( _HBMEM_SIG_LEN )
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FRead( fhnd, @cBuffer, Len( cBuffer ) )
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IF cBuffer == _HBMEM_SIGNATURE
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cBuffer := Space( FSeek( fhnd, 0, FS_END ) - _HBMEM_SIG_LEN )
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FSeek( fhnd, _HBMEM_SIG_LEN, FS_SET )
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FRead( fhnd, @cBuffer, Len( cBuffer ) )
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FClose( fhnd )
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aVars := hb_Deserialize( cBuffer )
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cBuffer := NIL
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IF HB_ISARRAY( aVars )
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FOR EACH item IN aVars
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IF HB_ISARRAY( item ) .AND. Len( item ) == 2 .AND. ;
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HB_ISSTRING( item[ 1 ] ) .AND. ;
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! Empty( item[ 1 ] )
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cName := item[ 1 ]
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lMatch := hb_WildMatchI( cMask, cName )
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IF iif( lIncludeMask, lMatch, ! lMatch )
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IF xValue == NIL
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xValue := item[ 2 ]
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ENDIF
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__mvPut( cName, item[ 2 ] )
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ENDIF
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ENDIF
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NEXT
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__mvSetBase()
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ENDIF
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ELSE
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FClose( fhnd )
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ENDIF
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RETURN xValue
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ELSE
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oError := ErrorNew()
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oError:severity := ES_ERROR
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oError:genCode := EG_ARG
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oError:subSystem := "BASE"
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oError:subCode := 2007
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oError:canRetry := .F.
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oError:canDefault := .F.
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oError:Args := hb_AParams()
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oError:operation := ProcName()
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Eval( ErrorBlock(), oError )
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ENDIF
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RETURN NIL
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