Import lttng.kernel.core plugins from Scope

[deliverable/tracecompass.git] / lttng / org.lttng.scope.lttng.kernel.core / src / org / lttng / scope / lttng / kernel / core / analysis / os / handlers / internal / IPIEntryHandler.java

diff --git a/lttng/org.lttng.scope.lttng.kernel.core/src/org/lttng/scope/lttng/kernel/core/analysis/os/handlers/internal/IPIEntryHandler.java b/lttng/org.lttng.scope.lttng.kernel.core/src/org/lttng/scope/lttng/kernel/core/analysis/os/handlers/internal/IPIEntryHandler.java
new file mode 100644 (file)
index 0000000..3e6506d
--- /dev/null
+++ b/lttng/org.lttng.scope.lttng.kernel.core/src/org/lttng/scope/lttng/kernel/core/analysis/os/handlers/internal/IPIEntryHandler.java
@@ -0,0 +1,68 @@
+/*******************************************************************************
+ * Copyright (c) 2016 Ericsson
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *******************************************************************************/
+
+package org.lttng.scope.lttng.kernel.core.analysis.os.handlers.internal;
+
+import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
+import org.lttng.scope.lttng.kernel.core.analysis.os.StateValues;
+import org.lttng.scope.lttng.kernel.core.trace.layout.ILttngKernelEventLayout;
+
+import ca.polymtl.dorsal.libdelorean.ITmfStateSystemBuilder;
+import ca.polymtl.dorsal.libdelorean.exceptions.AttributeNotFoundException;
+import ca.polymtl.dorsal.libdelorean.statevalue.ITmfStateValue;
+import ca.polymtl.dorsal.libdelorean.statevalue.TmfStateValue;
+
+/**
+ * IPI Entry Handler
+ *
+ * @author Matthew Khouzam
+ */
+public class IPIEntryHandler extends KernelEventHandler {
+
+    /**
+     * Constructor
+     *
+     * @param layout
+     *            event layout
+     */
+    public IPIEntryHandler(ILttngKernelEventLayout layout) {
+        super(layout);
+    }
+
+    @Override
+    public void handleEvent(ITmfStateSystemBuilder ss, ITmfEvent event) throws AttributeNotFoundException {
+
+        Integer cpu = KernelEventHandlerUtils.getCpu(event);
+        if (cpu == null) {
+            return;
+        }
+        Integer irqId = ((Long) event.getContent().getField(getLayout().fieldIPIVector()).getValue()).intValue();
+
+        /*
+         * Mark this IRQ as active in the resource tree. The state value = the
+         * CPU on which this IRQ is sitting
+         */
+        int quark = ss.getQuarkRelativeAndAdd(KernelEventHandlerUtils.getNodeIRQs(cpu, ss), irqId.toString());
+
+        ITmfStateValue value = TmfStateValue.newValueInt(cpu.intValue());
+        long timestamp = KernelEventHandlerUtils.getTimestamp(event);
+        ss.modifyAttribute(timestamp, value, quark);
+
+        /* Change the status of the running process to interrupted */
+        quark = KernelEventHandlerUtils.getCurrentThreadNode(cpu, ss);
+        value = StateValues.PROCESS_STATUS_INTERRUPTED_VALUE;
+        ss.modifyAttribute(timestamp, value, quark);
+
+        /* Change the status of the CPU to interrupted */
+        quark = KernelEventHandlerUtils.getCurrentCPUNode(cpu, ss);
+        value = StateValues.CPU_STATUS_IRQ_VALUE;
+        ss.modifyAttribute(timestamp, value, quark);
+    }
+
+}