lttng/org.lttng.scope.lttng.kernel.core/src/org/lttng/scope/lttng/kernel/core/analysis/os/StateValues.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2015 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 API and implementation
  11  ******************************************************************************/
  12
  13 package org.lttng.scope.lttng.kernel.core.analysis.os;
  14
  15 import ca.polymtl.dorsal.libdelorean.statevalue.ITmfStateValue;
  16 import ca.polymtl.dorsal.libdelorean.statevalue.TmfStateValue;
  17
  18 /**
  19  * State values that are used in the kernel event handler. It's much better to
  20  * use integer values whenever possible, since those take much less space in the
  21  * history file.
  22  *
  23  * @author Alexandre Montplaisir
  24  * @noimplement This interface is not intended to be implemented by clients.
  25  */
  26 @SuppressWarnings("javadoc")
  27 public interface StateValues {
  28
  29     /* Process status */
  30     int PROCESS_STATUS_UNKNOWN = 0;
  31     int PROCESS_STATUS_WAIT_BLOCKED = 1;
  32     int PROCESS_STATUS_RUN_USERMODE = 2;
  33     int PROCESS_STATUS_RUN_SYSCALL = 3;
  34     int PROCESS_STATUS_INTERRUPTED = 4;
  35     int PROCESS_STATUS_WAIT_FOR_CPU = 5;
  36     int PROCESS_STATUS_WAIT_UNKNOWN = 6;
  37
  38     ITmfStateValue PROCESS_STATUS_UNKNOWN_VALUE = TmfStateValue.newValueInt(PROCESS_STATUS_UNKNOWN);
  39     ITmfStateValue PROCESS_STATUS_WAIT_UNKNOWN_VALUE = TmfStateValue.newValueInt(PROCESS_STATUS_WAIT_UNKNOWN);
  40     ITmfStateValue PROCESS_STATUS_WAIT_BLOCKED_VALUE = TmfStateValue.newValueInt(PROCESS_STATUS_WAIT_BLOCKED);
  41     ITmfStateValue PROCESS_STATUS_RUN_USERMODE_VALUE = TmfStateValue.newValueInt(PROCESS_STATUS_RUN_USERMODE);
  42     ITmfStateValue PROCESS_STATUS_RUN_SYSCALL_VALUE = TmfStateValue.newValueInt(PROCESS_STATUS_RUN_SYSCALL);
  43     ITmfStateValue PROCESS_STATUS_INTERRUPTED_VALUE = TmfStateValue.newValueInt(PROCESS_STATUS_INTERRUPTED);
  44     ITmfStateValue PROCESS_STATUS_WAIT_FOR_CPU_VALUE = TmfStateValue.newValueInt(PROCESS_STATUS_WAIT_FOR_CPU);
  45
  46     /* CPU Status */
  47     int CPU_STATUS_IDLE = 0;
  48     /**
  49      * Soft IRQ raised, could happen in the CPU attribute but should not since
  50      * this means that the CPU went idle when a softirq was raised.
  51      */
  52     int CPU_STATUS_SOFT_IRQ_RAISED = (1 << 0);
  53     int CPU_STATUS_RUN_USERMODE = (1 << 1);
  54     int CPU_STATUS_RUN_SYSCALL = (1 << 2);
  55     int CPU_STATUS_SOFTIRQ = (1 << 3);
  56     int CPU_STATUS_IRQ = (1 << 4);
  57
  58     ITmfStateValue CPU_STATUS_IDLE_VALUE = TmfStateValue.newValueInt(CPU_STATUS_IDLE);
  59     ITmfStateValue CPU_STATUS_RUN_USERMODE_VALUE = TmfStateValue.newValueInt(CPU_STATUS_RUN_USERMODE);
  60     ITmfStateValue CPU_STATUS_RUN_SYSCALL_VALUE = TmfStateValue.newValueInt(CPU_STATUS_RUN_SYSCALL);
  61     ITmfStateValue CPU_STATUS_IRQ_VALUE = TmfStateValue.newValueInt(CPU_STATUS_IRQ);
  62     ITmfStateValue CPU_STATUS_SOFTIRQ_VALUE = TmfStateValue.newValueInt(CPU_STATUS_SOFTIRQ);
  63
  64     /** Soft IRQ is raised, CPU is in user mode */
  65     ITmfStateValue SOFT_IRQ_RAISED_VALUE = TmfStateValue.newValueInt(CPU_STATUS_SOFT_IRQ_RAISED);
  66
  67     /** If the softirq is running and another is raised at the same time. */
  68     ITmfStateValue SOFT_IRQ_RAISED_RUNNING_VALUE = TmfStateValue.newValueInt(CPU_STATUS_SOFT_IRQ_RAISED | CPU_STATUS_SOFTIRQ);
  69 }