author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Mon, 30 Jan 2012 17:19:14 +0000 | |
branch | jv |
changeset 3012 | 4f40b8304d54 |
parent 3011 | 1997ff6e7e55 |
child 3042 | 48e76977cdc3 |
permissions | -rw-r--r-- |
2299 | 1 |
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COPYRIGHT (c) 2010 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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"{ Package: 'stx:libbasic3' }" |
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Array variableSubclass:#TraceBuffer |
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instanceVariableNames:'accessLock writeIndex' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'System-Debugging-Support' |
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! |
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!TraceBuffer class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 2010 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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"Created: / 30-11-2010 / 16:21:33 / cg" |
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! |
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documentation |
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" |
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simple round robin tracebuffer for system debugging. |
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" |
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"Created: / 30-11-2010 / 16:21:57 / cg" |
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! |
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examples |
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" |
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|buffer| |
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buffer := self new:100. |
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buffer dumpLast:5 on:Transcript. |
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buffer trace:1. |
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buffer trace:2. |
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buffer trace:3. |
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buffer dumpLast:5 on:Transcript. |
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buffer trace:4. |
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buffer trace:5. |
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buffer dumpLast:5 on:Transcript. |
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buffer trace:6. |
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buffer trace:7. |
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buffer trace:8. |
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buffer dumpLast:5 on:Transcript. |
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" |
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"Created: / 30-11-2010 / 16:11:55 / cg" |
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! ! |
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!TraceBuffer class methodsFor:'instance creation'! |
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new:n |
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"return an initialized instance" |
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^ (self basicNew:n*2) initialize. |
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"Created: / 30-11-2010 / 16:13:25 / cg" |
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! ! |
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!TraceBuffer methodsFor:'dumping'! |
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dumpLast:n on:aStream |
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|count idx entry time| |
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count := 0. |
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idx := writeIndex. |
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aStream showCR:'-----------------'. |
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[ |
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[ count <= n ] whileTrue:[ |
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idx == 0 ifTrue:[ |
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idx := self size. |
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idx == 0 ifTrue:[ ^ self ]. |
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]. |
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time := self at:idx. |
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entry := self at:idx-1. |
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entry isNil ifTrue:[^ self ]. |
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aStream show:time; show:' '; showCR:entry. |
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idx := idx - 2. |
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count := count + 1. |
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]. |
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] ensure:[ |
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aStream showCR:'-----------------'. |
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] |
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"Created: / 30-11-2010 / 16:10:00 / cg" |
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! ! |
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!TraceBuffer methodsFor:'initialization'! |
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initialize |
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writeIndex := 0. |
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accessLock := Semaphore forMutualExclusion. |
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"Created: / 30-11-2010 / 16:06:47 / cg" |
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! ! |
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!TraceBuffer methodsFor:'tracing'! |
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trace:something |
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accessLock critical:[ |
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writeIndex == self size ifTrue:[ |
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writeIndex := 0. |
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]. |
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self at:writeIndex+1 put:something. |
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self at:writeIndex+2 put:(OperatingSystem getMicrosecondTime). |
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writeIndex := writeIndex + 2. |
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]. |
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"Created: / 30-11-2010 / 16:07:52 / cg" |
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! ! |
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!TraceBuffer class methodsFor:'documentation'! |
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version_CVS |
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3011
1997ff6e7e55
trunk branched into /branches/jv
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
2308
diff
changeset
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^ '§Header: /cvs/stx/stx/libbasic3/TraceBuffer.st,v 1.2 2010/12/03 09:08:31 stefan Exp §' |
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! |
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version_SVN |
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^ '$Id$' |
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! ! |