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Bug 438934 - Failure in MIMemoryTest.asynchronousReadWrite because of a

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concurency issue where the AsyncCompletionWaitor was being accessed by
more than one thread but was not properly synchronized.

Change-Id: I5c6f063ca519787a0cc45281c0632fcf07b763d5
Signed-off-by: Marc Khouzam <marc.khouzam@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/30089
Tested-by: Hudson CI
This commit is contained in:
Marc Khouzam 2014-07-17 16:57:40 -04:00
parent b9764a20a4
commit 935e88036d
2 changed files with 7 additions and 41 deletions
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10
dsf-gdb/org.eclipse.cdt.tests.dsf.gdb/src/org/eclipse/cdt/tests/dsf/gdb/framework/AsyncCompletionWaitor.java
View file

@ -89,7 +89,7 @@ public class AsyncCompletionWaitor {
fNumWaiting = 0;
}
public boolean isOK() {
public synchronized boolean isOK() {
if ( fStatus == null ) {
// We timed out
return false;
@ -98,7 +98,7 @@ public class AsyncCompletionWaitor {
return fStatus.isOK();
}
public String getMessage() {
public synchronized String getMessage() {
if ( fStatus == null ) {
return "Timed out"; //$NON-NLS-1$
}
@ -115,15 +115,15 @@ public class AsyncCompletionWaitor {
return fullMessage.length() <= 2 ? fullMessage : fullMessage.substring(0, fullMessage.length() - 2);
}
public void setReturnInfo(Object info) {
public synchronized void setReturnInfo(Object info) {
fReturnInfo = info ;
}
public Object getReturnInfo() {
public synchronized Object getReturnInfo() {
return fReturnInfo;
}
public void increment() {
public synchronized void increment() {
if (fWaitFinished) {
((MultiStatus)fStatus).merge(
new Status(IStatus.ERROR, TestsPlugin.PLUGIN_ID,

38
dsf-gdb/org.eclipse.cdt.tests.dsf.gdb/src/org/eclipse/cdt/tests/dsf/gdb/tests/MIMemoryTest.java
View file

@ -22,8 +22,6 @@ import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.service.IExpressions;
import org.eclipse.cdt.dsf.debug.service.IExpressions.IExpressionDMContext;
import org.eclipse.cdt.dsf.debug.service.IFormattedValues;
import org.eclipse.cdt.dsf.debug.service.IFormattedValues.FormattedValueDMContext;
import org.eclipse.cdt.dsf.debug.service.IFormattedValues.FormattedValueDMData;
import org.eclipse.cdt.dsf.debug.service.IMemory;
import org.eclipse.cdt.dsf.debug.service.IMemory.IMemoryChangedEvent;
import org.eclipse.cdt.dsf.debug.service.IMemory.IMemoryDMContext;
@ -217,40 +215,8 @@ public class MIMemoryTest extends BaseTestCase {
*/
private IAddress evaluateExpression(IDMContext ctx, String expression) throws Throwable
{
// Create the expression and format contexts
final IExpressionDMContext expressionDMC = SyncUtil.createExpression(ctx, expression);
final FormattedValueDMContext formattedValueDMC = SyncUtil.getFormattedValue(fExpressionService, expressionDMC, IFormattedValues.HEX_FORMAT);
// Create the DataRequestMonitor which will store the operation result in the wait object
final DataRequestMonitor<FormattedValueDMData> drm =
new DataRequestMonitor<FormattedValueDMData>(fSession.getExecutor(), null) {
@Override
protected void handleCompleted() {
if (isSuccess()) {
fWait.setReturnInfo(getData());
}
fWait.waitFinished(getStatus());
}
};
// Evaluate the expression (asynchronously)
fSession.getExecutor().submit(new Runnable() {
@Override
public void run() {
fExpressionService.getFormattedExpressionValue(formattedValueDMC, drm);
}
});
// Wait for completion
fWait.waitUntilDone(AsyncCompletionWaitor.WAIT_FOREVER);
assertTrue(fWait.getMessage(), fWait.isOK());
// Return the string formatted by the back-end
String result = "";
Object returnInfo = fWait.getReturnInfo();
if (returnInfo instanceof FormattedValueDMData)
result = ((FormattedValueDMData) returnInfo).getFormattedValue();
return new Addr64(result);
IExpressionDMContext expressionDMC = SyncUtil.createExpression(ctx, expression);
return new Addr64(SyncUtil.getExpressionValue(expressionDMC, IFormattedValues.HEX_FORMAT));
}
/* ------------------------------------------------------------------------