58faf91453
* *
% remove brandings and homepage [1] from copyright header. Pass 1 - using script.
[1] nobody has access to it anymore AFAIK - and it's also just
a redirect since long
! update url in copyright header
; this should make the diff between 3.4 and 3.2 easier to manage
110 lines
2.0 KiB
Plaintext
110 lines
2.0 KiB
Plaintext
/*
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* demonstration/test code for file lock synchronization between
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* aliased work areas
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*
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* Copyright 2008 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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*
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*/
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proc main()
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local cFile := "_tst"
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if ! hb_dbExists( cFile )
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dbCreate( cFile, { { "F", "C", 10, 0 } } )
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use _tst exclusive
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while LastRec() < 100
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dbAppend()
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enddo
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close
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endif
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? "Test exclusive access"
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select 1
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use _tst exclusive alias tst1
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? "neterr->", NetErr(), "used->", Used(), "alias->", Alias()
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select 2
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use _tst exclusive alias tst2
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? "neterr->", NetErr(), "used->", Used(), "alias->", Alias()
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if Used()
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? "Error, exclusive mode in aliased work areas does not work"
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else
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? "OK"
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endif
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dbCloseAll()
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wait
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?
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? "Test shared access"
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select 1
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use _tst shared alias tst1
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? "neterr->", NetErr(), "used->", Used(), "alias->", Alias()
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setLock(2)
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setLock(4)
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setLock(6)
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setLock(7)
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dspLock()
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select 2
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use _tst shared alias tst2
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? "neterr->", NetErr(), "used->", Used(), "alias->", Alias()
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setLock(1)
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setLock(2)
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setLock(3)
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setLock(4)
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setLock(5)
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setLock(6)
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setLock(7)
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setLock(8)
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setLock(9)
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dspLock()
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wait
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?
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select 1
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? "unlock all in", Alias()
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dbUnlock()
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dspLock()
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select 2
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? "lock 10 records in", Alias()
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setLock(1)
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setLock(2)
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setLock(3)
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setLock(4)
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setLock(5)
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setLock(6)
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setLock(7)
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setLock(8)
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setLock(9)
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dspLock()
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wait
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?
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? "unlock 3, 5, 9 in", Alias()
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dbRUnlock(3)
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dbRUnlock(5)
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dbRUnlock(9)
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dspLock()
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select 1
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? "lock 10 records in", Alias()
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setLock(1)
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setLock(2)
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setLock(3)
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setLock(4)
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setLock(5)
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setLock(6)
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setLock(7)
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setLock(8)
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setLock(9)
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dspLock()
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wait
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dbCloseAll()
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hb_dbDrop( cFile )
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return
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proc setLock( n )
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? "locking record: " + hb_ntos( n ) + " ->", dbRLock( n )
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return
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proc dspLock()
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local n
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? Alias(), "active locks:"
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for each n in dbRLockList()
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?? "", hb_ntos( n )
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next
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return
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