a4a357a18b
* /harbour/* -> /*
* moved whole Harbour source tree one level up to
avoid single 'harbour' top dir
70 lines
1.7 KiB
Plaintext
70 lines
1.7 KiB
Plaintext
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* demonstration/test code for using the same work area in different
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* threads. Please note that this program also works when compiled
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* without thread support.
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*
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* Copyright 2008 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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* www - http://harbour-project.org
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*
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*/
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STATIC s_mainThreadID
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proc main()
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field F1
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local thID, bResult
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s_mainThreadID := hb_threadSelf()
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/* create table */
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dbCreate("_tst", { { "F1", "C", 1, 0 } } )
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use _tst
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while lastRec() < 10000
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dbAppend()
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F1 := chr( recno() )
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enddo
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? "main thread ID:", s_mainThreadID
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thID := hb_threadStart( @thFunc() )
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? "current thread ID:", thID
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? "work area in use, used() =>", used(), alias()
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WAIT "Press a key to detach work area"
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hb_dbDetach( , {|| countRecords( {|| F1 == "A" } ) } )
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? "work area detached, used() =>", used(), alias()
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? "we will make some other things now..."
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hb_idleSleep( 1 )
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? "let's check the result"
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? "request for work area"
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hb_dbRequest( , , @bResult, .T. )
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? "work area atached, used() =>", used(), alias()
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? "query result:", eval( bResult )
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close
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dbDrop("_tst")
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return
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proc thFunc()
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local bQuery, xResult
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if hb_dbRequest( , , @bQuery, .T. )
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xResult := Eval( bQuery )
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hb_dbDetach( , {|| xResult } )
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endif
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return
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static func countRecords( bFor )
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local nCount := 0
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dbGoTop()
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while ! eof()
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if eval( bFor )
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nCount ++
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endif
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dbSkip()
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enddo
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? "!!! JOB DONE !!!" + iif( hb_threadSelf() == s_mainThreadID, ;
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" (by main thread)", " (by child thread)" )
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return nCount
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