| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2013 Ericsson |
| 3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which |
| 6 | * accompanies this distribution, and is available at |
| 7 | * http://www.eclipse.org/legal/epl-v10.html |
| 8 | * |
| 9 | * Contributors: |
| 10 | * Alexandre Montplaisir - Initial implementation |
| 11 | *******************************************************************************/ |
| 12 | |
| 13 | package org.eclipse.linuxtools.lttng2.ust.core.tests.trace.callstack; |
| 14 | |
| 15 | import static org.junit.Assert.assertEquals; |
| 16 | import static org.junit.Assert.fail; |
| 17 | |
| 18 | import java.io.File; |
| 19 | import java.util.List; |
| 20 | |
| 21 | import org.eclipse.linuxtools.lttng2.ust.core.trace.LttngUstTrace; |
| 22 | import org.eclipse.linuxtools.tmf.core.callstack.CallStackStateProvider; |
| 23 | import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException; |
| 24 | import org.eclipse.linuxtools.tmf.core.exceptions.StateSystemDisposedException; |
| 25 | import org.eclipse.linuxtools.tmf.core.exceptions.StateValueTypeException; |
| 26 | import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException; |
| 27 | import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval; |
| 28 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager; |
| 29 | import org.eclipse.linuxtools.tmf.core.signal.TmfTraceOpenedSignal; |
| 30 | import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem; |
| 31 | import org.eclipse.linuxtools.tmf.core.statevalue.ITmfStateValue; |
| 32 | |
| 33 | /** |
| 34 | * Common methods for LTTng-UST callstack trace tests. |
| 35 | * |
| 36 | * @author Alexandre Montplaisir |
| 37 | */ |
| 38 | final class TestUtils { |
| 39 | |
| 40 | private TestUtils() {} |
| 41 | |
| 42 | /** ID of the generated state systems */ |
| 43 | static final String SSID = CallStackStateProvider.ID; |
| 44 | |
| 45 | /** Empty and delete a directory */ |
| 46 | static void deleteDirectory(File dir) { |
| 47 | /* Assuming the dir only contains file or empty directories */ |
| 48 | for (File file : dir.listFiles()) { |
| 49 | file.delete(); |
| 50 | } |
| 51 | dir.delete(); |
| 52 | } |
| 53 | |
| 54 | /** Simulate a trace being opened (which triggers building the state system) */ |
| 55 | static void openTrace(LttngUstTrace trace) { |
| 56 | trace.indexTrace(true); |
| 57 | TmfSignalManager.dispatchSignal(new TmfTraceOpenedSignal(trace, trace, null)); |
| 58 | trace.getStateSystems().get(SSID).waitUntilBuilt(); |
| 59 | } |
| 60 | |
| 61 | /** Get the callstack for the given timestamp, for this particular trace */ |
| 62 | static String[] getCallStack(LttngUstTrace trace, String processName, long timestamp) { |
| 63 | try { |
| 64 | ITmfStateSystem ss = trace.getStateSystems().get(SSID); |
| 65 | int stackAttribute = ss.getQuarkAbsolute("Threads", processName, "CallStack"); |
| 66 | List<ITmfStateInterval> state = ss.queryFullState(timestamp); |
| 67 | int depth = state.get(stackAttribute).getStateValue().unboxInt(); |
| 68 | |
| 69 | int stackTop = ss.getQuarkRelative(stackAttribute, String.valueOf(depth)); |
| 70 | ITmfStateValue top = state.get(stackTop).getStateValue(); |
| 71 | assertEquals(top, ss.querySingleStackTop(timestamp, stackAttribute).getStateValue()); |
| 72 | |
| 73 | String[] ret = new String[depth]; |
| 74 | for (int i = 0; i < depth; i++) { |
| 75 | int quark = ss.getQuarkRelative(stackAttribute, String.valueOf(i + 1)); |
| 76 | ret[i] = state.get(quark).getStateValue().unboxStr(); |
| 77 | } |
| 78 | return ret; |
| 79 | |
| 80 | } catch (AttributeNotFoundException e) { |
| 81 | fail(e.getMessage()); |
| 82 | } catch (TimeRangeException e) { |
| 83 | fail(e.getMessage()); |
| 84 | } catch (StateSystemDisposedException e) { |
| 85 | fail(e.getMessage()); |
| 86 | } catch (StateValueTypeException e) { |
| 87 | fail(e.getMessage()); |
| 88 | } |
| 89 | fail(); |
| 90 | return null; |
| 91 | } |
| 92 | |
| 93 | } |