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Code Issues Wiki Activity

[280502] Don't allow to turn on reverse if the inferior is running or it will freeze the UI

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This commit is contained in:
Marc Khouzam 2009-07-07 19:24:59 +00:00
parent 8b4aa094d7
commit ba11276b94
1 changed files with 29 additions and 8 deletions
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37
dsf-gdb/org.eclipse.cdt.dsf.gdb.ui/src/org/eclipse/cdt/dsf/gdb/internal/ui/actions/GdbReverseToggleCommand.java
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@ -18,6 +18,8 @@ import org.eclipse.cdt.dsf.concurrent.DsfExecutor;
import org.eclipse.cdt.dsf.concurrent.Immutable; import org.eclipse.cdt.dsf.concurrent.Immutable;
import org.eclipse.cdt.dsf.concurrent.Query; import org.eclipse.cdt.dsf.concurrent.Query;
import org.eclipse.cdt.dsf.datamodel.DMContexts; import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.debug.service.IRunControl;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IExecutionDMContext;
import org.eclipse.cdt.dsf.debug.service.command.ICommandControlService.ICommandControlDMContext; import org.eclipse.cdt.dsf.debug.service.command.ICommandControlService.ICommandControlDMContext;
import org.eclipse.cdt.dsf.gdb.actions.IReverseToggleHandler; import org.eclipse.cdt.dsf.gdb.actions.IReverseToggleHandler;
import org.eclipse.cdt.dsf.gdb.internal.ui.GdbUIPlugin; import org.eclipse.cdt.dsf.gdb.internal.ui.GdbUIPlugin;
@ -47,9 +49,10 @@ public class GdbReverseToggleCommand implements IReverseToggleHandler {
} }
public boolean canToggleReverse(ISelection debugContext) { public boolean canToggleReverse(ISelection debugContext) {
final ICommandControlDMContext dmc = getContext(debugContext); final ICommandControlDMContext controlDmc = getCommandControlContext(debugContext);
final IExecutionDMContext execDmc = getExecutionContext(debugContext);
if (dmc == null) {
if (controlDmc == null && execDmc == null) {
return false; return false;
} }
@ -58,8 +61,12 @@ public class GdbReverseToggleCommand implements IReverseToggleHandler {
public void execute(DataRequestMonitor<Boolean> rm) { public void execute(DataRequestMonitor<Boolean> rm) {
IReverseRunControl runControl = fTracker.getService(IReverseRunControl.class); IReverseRunControl runControl = fTracker.getService(IReverseRunControl.class);
if (runControl != null) { // Only allow to toggle reverse if the program is suspended.
runControl.canEnableReverseMode(dmc, rm); // When the program is running, GDB will not answer our command
// in toggleReverse() and since it is blocking, it will hang the entire UI!
if (runControl != null &&
runControl instanceof IRunControl && ((IRunControl)runControl).isSuspended(execDmc)) {
runControl.canEnableReverseMode(controlDmc, rm);
} else { } else {
rm.setData(false); rm.setData(false);
rm.done(); rm.done();
@ -79,7 +86,7 @@ public class GdbReverseToggleCommand implements IReverseToggleHandler {
} }
public void toggleReverse(ISelection debugContext) { public void toggleReverse(ISelection debugContext) {
final ICommandControlDMContext dmc = getContext(debugContext); final ICommandControlDMContext dmc = getCommandControlContext(debugContext);
if (dmc == null) { if (dmc == null) {
return; return;
@ -114,7 +121,7 @@ public class GdbReverseToggleCommand implements IReverseToggleHandler {
} }
} }
private ICommandControlDMContext getContext(ISelection debugContext) { private ICommandControlDMContext getCommandControlContext(ISelection debugContext) {
if (debugContext instanceof IStructuredSelection) { if (debugContext instanceof IStructuredSelection) {
IStructuredSelection ss = (IStructuredSelection) debugContext; IStructuredSelection ss = (IStructuredSelection) debugContext;
if (!ss.isEmpty()) { if (!ss.isEmpty()) {
@ -128,8 +135,22 @@ public class GdbReverseToggleCommand implements IReverseToggleHandler {
return null; return null;
} }
private IExecutionDMContext getExecutionContext(ISelection debugContext) {
if (debugContext instanceof IStructuredSelection) {
IStructuredSelection ss = (IStructuredSelection) debugContext;
if (!ss.isEmpty()) {
Object object = ss.getFirstElement();
if (object instanceof IDMVMContext) {
return DMContexts.getAncestorOfType(((IDMVMContext)object).getDMContext(), IExecutionDMContext.class);
}
}
}
return null;
}
public boolean isReverseToggled(ISelection debugContext) { public boolean isReverseToggled(ISelection debugContext) {
final ICommandControlDMContext dmc = getContext(debugContext); final ICommandControlDMContext dmc = getCommandControlContext(debugContext);
return isReverseToggled(dmc); return isReverseToggled(dmc);
} }