fix(#54): Refactors the LibpfmChildSensor

Closes #54. Uses the helper as a parameter in order to rewrite tests (we will be able to mock this object).
A new libpfm jar is provided in order to be used in all supported architectures by libpfm.

chore(dependencies): update plugins and dependencies

Updates all dependencies and plugins used by PowerAPI.

.travis.yml

@@ -1,13 +1,8 @@
 language: scala
 scala:
-- 2.11.4
+- 2.11.6
 script:
-- sbt clean coverage test
-before_install:
-- openssl aes-256-cbc -K $encrypted_48ebb0d1c0b9_key -iv $encrypted_48ebb0d1c0b9_iv
-  -in secrets.tar.enc -out secrets.tar -d
-- tar xf secrets.tar
+- sbt clean "project powerapi-core" coverage test
 after_success:
-- sbt coverageReport
-- sbt coverageAggregate
-- sbt codacyCoverage
+- sbt "project powerapi-core" coverageReport
+- sbt "project powerapi-core" codacyCoverage

README.md

@@ -41,12 +41,12 @@ PowerAPI is used in a variety of projects to address key challenges of GreenIT:
 * [Greenspector](http://greenspector.com) optimises the power consumption of software by identifying potential energy leaks in the source code.
 
 ## Acknowledgments
-We all stand on the shoulders of giants and get by with a little help from our friends. PowerAPI is written in [Scala](http://www.scala-lang.org) (version 2.11.4 under [3-clause BSD license](http://www.scala-lang.org/license.html)) and built on top of:
-* [Akka](http://akka.io) (version 2.3.6 under [Apache 2 license](http://www.apache.org/licenses/LICENSE-2.0)), for asynchronous processing
-* [Typesage Config](https://github.com/typesafehub/config) (version 1.2.1 under [Apache 2 license](http://www.apache.org/licenses/LICENSE-2.0)), for reading configuration files.
-* [Apache log4j2](http://logging.apache.org/log4j/2.x) (version 2.1 under [Apache 2 license](http://www.apache.org/licenses/LICENSE-2.0)), for logging outside actors.
+We all stand on the shoulders of giants and get by with a little help from our friends. PowerAPI is written in [Scala](http://www.scala-lang.org) (version 2.11.6 under [3-clause BSD license](http://www.scala-lang.org/license.html)) and built on top of:
+* [Akka](http://akka.io) (version 2.3.11 under [Apache 2 license](http://www.apache.org/licenses/LICENSE-2.0)), for asynchronous processing
+* [Typesafe Config](https://github.com/typesafehub/config) (version 1.2.1 under [Apache 2 license](http://www.apache.org/licenses/LICENSE-2.0)), for reading configuration files.
+* [Apache log4j2](http://logging.apache.org/log4j/2.x) (version 2.3 under [Apache 2 license](http://www.apache.org/licenses/LICENSE-2.0)), for logging outside actors.
 * [powerspy.scala](https://github.com/Spirals-Team/powerspy.scala) (version 1.0.1 under [AGPL license](http://www.gnu.org/licenses/agpl-3.0.html)), for using the [PowerSpy powermeter](http://www.alciom.com/en/products/powerspy2-en-gb-2.html).
-* [BridJ](https://code.google.com/p/bridj/) (version 0.6.2 under [3-clause BSD license](https://github.com/ochafik/nativelibs4java/blob/master/libraries/BridJ/LICENSE)), for system or C calls.
+* [BridJ](https://code.google.com/p/bridj/) (version 0.7.0 under [3-clause BSD license](https://github.com/ochafik/nativelibs4java/blob/master/libraries/BridJ/LICENSE)), for system or C calls.
 * [perfmon2](http://sourceforge.net/p/perfmon2/libpfm4/ci/master/tree) (version 4.6.0 under [MIT license](http://sourceforge.net/p/perfmon2/libpfm4/ci/master/tree/COPYING)), for accessing hardware performance counters.
 * [JFreeChart](http://www.jfree.org/jfreechart/) (version 1.0.19 under [LGPL license](https://www.gnu.org/licenses/lgpl.html)), for creation of interactive and animated charts.
 * [Scala IO](http://jesseeichar.github.io/scala-io-doc/0.4.3/index.html#!/overview) (version 0.4.3 under [3-clause BSD license](http://www.scala-lang.org/license.html)), for an extensions of IO.

build.sbt

@@ -2,7 +2,7 @@ name := "powerapi"
 
 version in ThisBuild := "3.1"
 
-scalaVersion in ThisBuild := "2.11.4"
+scalaVersion in ThisBuild := "2.11.6"
 
 scalacOptions in ThisBuild ++= Seq(
   "-language:reflectiveCalls",
@@ -13,10 +13,8 @@ scalacOptions in ThisBuild ++= Seq(
 
 // Logging
 libraryDependencies in ThisBuild ++= Seq(
-  "org.apache.logging.log4j" % "log4j-api" % "2.1",
-  "org.apache.logging.log4j" % "log4j-core" % "2.1"
+  "org.apache.logging.log4j" % "log4j-api" % "2.3",
+  "org.apache.logging.log4j" % "log4j-core" % "2.3"
 )
 
 parallelExecution in (ThisBuild, Test) := false
-
-codacyProjectTokenFile := Some("./codacy-token.txt")

powerapi-cli/src/main/scala/org/powerapi/app/PowerAPI.scala

@@ -28,7 +28,7 @@ import org.powerapi.core.target.{Application, All, Process, Target}
 import org.powerapi.module.rapl.RAPLModule
 import org.powerapi.module.sigar.SigarModule
 import org.powerapi.reporter.{FileDisplay, JFreeChartDisplay, ConsoleDisplay}
-import org.powerapi.{PowerMonitoring, PowerMeter, PowerModule}
+import org.powerapi.{PowerMonitoring, PowerMeter}
 import org.powerapi.core.power._
 import org.powerapi.module.cpu.dvfs.CpuDvfsModule
 import org.powerapi.module.cpu.simple.CpuSimpleModule
@@ -66,20 +66,6 @@ object PowerAPI extends App {
     case _ => false
   }
 
-  implicit def modulesStrToPowerModules(str: String): Seq[PowerModule] = {
-    (for(module <- str.split(",")) yield {
-      module match {
-        case "cpu-simple" => CpuSimpleModule()
-        case "cpu-dvfs" => CpuDvfsModule()
-        case "libpfm-core" => LibpfmCoreModule()
-        case "libpfm-core-process" => LibpfmCoreProcessModule()
-        case "powerspy" => PowerSpyModule()
-        case "rapl" => RAPLModule()
-        case "sigar" => SigarModule()
-      }
-    }).toSeq
-  }
-
   def validateAgg(str: String): Boolean = str match {
     case aggR(_*) => true
     case _ => false
@@ -172,9 +158,27 @@ object PowerAPI extends App {
     if(!System.getProperty("os.name").startsWith("Windows")) Seq("bash", "scripts/system.bash").!
     val (configuration, duration) = cli(List(), "3600", args.toList)
 
+    var libpfmHelper: Option[LibpfmHelper] = None
+
+    if(configuration.count(powerMeterConf => powerMeterConf('modules).toString.contains("libpfm")) != 0) {
+      libpfmHelper = Some(new LibpfmHelper)
+      libpfmHelper.get.init()
+    }
+
     for(powerMeterConf <- configuration) {
-      val modules = powerMeterConf('modules).toString
-      if(modules.contains("libpfm-core") || modules.contains("libpfm-core-process")) LibpfmHelper.init()
+      val modulesStr = powerMeterConf('modules).toString
+
+      val modules = (for(module <- modulesStr.split(",")) yield {
+        module match {
+          case "cpu-simple" => CpuSimpleModule()
+          case "cpu-dvfs" => CpuDvfsModule()
+          case "libpfm-core" => LibpfmCoreModule(libpfmHelper.get)
+          case "libpfm-core-process" => LibpfmCoreProcessModule(libpfmHelper.get)
+          case "powerspy" => PowerSpyModule()
+          case "rapl" => RAPLModule()
+          case "sigar" => SigarModule()
+        }
+      }).toSeq
 
       val powerMeter = PowerMeter.loadModule(modules: _*)
       powerMeters :+= powerMeter
@@ -209,8 +213,10 @@ object PowerAPI extends App {
 
     Thread.sleep(duration.toInt.seconds.toMillis)
 
-    val isLibpfmInit = configuration.count(powerMeterConf => powerMeterConf('modules).toString.contains("libpfm-core") || powerMeterConf('modules).toString.contains("libpfm-core-process")) != 0
-    if(isLibpfmInit) LibpfmHelper.deinit()
+    libpfmHelper match {
+      case Some(helper) => helper.deinit()
+      case _ => {}
+    }
   }
 
   shutdownHookThread.start()

powerapi-core/build.sbt

@@ -1,7 +1,3 @@
-import SonatypeKeys._
-
-sonatypeSettings
-
 name := "powerapi-core"
 
 organization := "org.powerapi"
@@ -12,10 +8,10 @@ resolvers ++= Seq(
 
 // App
 libraryDependencies ++= Seq(
-  "com.typesafe.akka" %% "akka-actor" % "2.3.6",
+  "com.typesafe.akka" %% "akka-actor" % "2.3.11",
   "com.typesafe" % "config" % "1.2.1",
   "fr.inria.powerspy" % "powerspy-core_2.11" % "1.1",
-  "com.nativelibs4java" % "bridj" % "0.6.2",
+  "com.nativelibs4java" % "bridj" % "0.7.0",
   "com.github.scala-incubator.io" %% "scala-io-core" % "0.4.3",
   "com.github.scala-incubator.io" %% "scala-io-file" % "0.4.3",
   "org.jfree" % "jfreechart" % "1.0.19",
@@ -25,8 +21,9 @@ libraryDependencies ++= Seq(
 
 // Tests
 libraryDependencies ++= Seq(
-  "com.typesafe.akka" %% "akka-testkit" % "2.3.6" % "test",
-  "org.scalatest" %% "scalatest" % "2.2.2" % "test"
+  "com.typesafe.akka" %% "akka-testkit" % "2.3.11" % "test",
+  "org.scalatest" %% "scalatest" % "2.2.5" % "test",
+  "org.scalamock" %% "scalamock-scalatest-support" % "3.2.2" % "test"
 )
 
 startYear := Some(2014)

powerapi-core/src/main/java/org/powerapi/module/libpfm/CUtils.java

@@ -28,8 +28,6 @@
 import org.bridj.BridJ;
 import org.bridj.CRuntime;
 import org.bridj.Pointer;
-
-import perfmon2.libpfm.LibpfmLibrary;
 import perfmon2.libpfm.perf_event_attr;
 
 /**
@@ -47,10 +45,10 @@ public class CUtils {
   /**
    * perf_event_open maccro (not generated correctly).
    */
-  public static int perf_event_open(Pointer<perf_event_attr> __hw, int __pid, int __cpu, int __gr, @CLong long __flags) {
-    return syscall(LibpfmLibrary.__NR_perf_event_open, Pointer.getPeer(__hw), __pid, __cpu, __gr, __flags);
+  public static int perf_event_open(int __nrPerfEventOpen, Pointer<perf_event_attr> __hw, int __pid, int __cpu, int __gr, @CLong long __flags) {
+    return syscall(__nrPerfEventOpen, Pointer.getPeer(__hw), __pid, __cpu, __gr, __flags);
   }
-  private native static int syscall(int __cdde, Object... varArgs1);
+  private native static int syscall(int __code, Object... varArgs1);
 
   /**
    * Interact with a given file descriptor. In this case, we use it to enable, disable and reset a file descriptor (so, a counter).

powerapi-core/src/main/scala/org/powerapi/module/libpfm/LibpfmCoreModule.scala

@@ -28,30 +28,46 @@ import org.powerapi.module.libpfm.cycles.{LibpfmCoreCyclesFormulaConfiguration,
 import scala.collection.BitSet
 import scala.concurrent.duration.FiniteDuration
 
-class LibpfmCoreModule(timeout: Timeout, topology: Map[Int, Set[Int]], configuration: BitSet, events: Set[String],
+class LibpfmCoreModule(libpfmHelper: LibpfmHelper, timeout: Timeout, topology: Map[Int, Set[Int]], configuration: BitSet, events: Set[String],
                        cyclesThreadName: String, cyclesRefName: String, formulae: Map[Double, List[Double]], samplingInterval: FiniteDuration) extends PowerModule {
 
-  lazy val underlyingSensorsClasses  = Seq((classOf[LibpfmCoreSensor], Seq(timeout, topology, configuration, events)))
+  lazy val underlyingSensorsClasses  = Seq((classOf[LibpfmCoreSensor], Seq(libpfmHelper, timeout, topology, configuration, events)))
   lazy val underlyingFormulaeClasses = Seq((classOf[LibpfmCoreCyclesFormula], Seq(cyclesThreadName, cyclesRefName, formulae, samplingInterval)))
 }
 
 object LibpfmCoreModule extends LibpfmCoreSensorConfiguration with LibpfmCoreCyclesFormulaConfiguration {
+  lazy val libpfmHelper = new LibpfmHelper
+
   def apply(): LibpfmCoreModule = {
-    new LibpfmCoreModule(timeout, topology, configuration, events, cyclesThreadName, cyclesRefName, formulae, samplingInterval)
+    new LibpfmCoreModule(libpfmHelper, timeout, topology, configuration, events, cyclesThreadName, cyclesRefName, formulae, samplingInterval)
+  }
+
+  def apply(libpfmHelper: LibpfmHelper): LibpfmCoreModule = {
+    new LibpfmCoreModule(libpfmHelper, timeout, topology, configuration, events, cyclesThreadName, cyclesRefName, formulae, samplingInterval)
   }
 }
 
-class LibpfmCoreSensorModule(timeout: Timeout, topology: Map[Int, Set[Int]], configuration: BitSet, events: Set[String]) extends PowerModule {
-  lazy val underlyingSensorsClasses  = Seq((classOf[LibpfmCoreSensor], Seq(timeout, topology, configuration, events)))
+class LibpfmCoreSensorModule(libpfmHelper: LibpfmHelper, timeout: Timeout, topology: Map[Int, Set[Int]], configuration: BitSet, events: Set[String]) extends PowerModule {
+  lazy val underlyingSensorsClasses  = Seq((classOf[LibpfmCoreSensor], Seq(libpfmHelper, timeout, topology, configuration, events)))
   lazy val underlyingFormulaeClasses = Seq()
 }
 
 object LibpfmCoreSensorModule extends LibpfmCoreSensorConfiguration {
+  lazy val libpfmHelper = new LibpfmHelper
+
   def apply(): LibpfmCoreSensorModule = {
-    new LibpfmCoreSensorModule(timeout, topology, configuration, events)
+    new LibpfmCoreSensorModule(libpfmHelper, timeout, topology, configuration, events)
+  }
+
+  def apply(libpfmHelper: LibpfmHelper): LibpfmCoreSensorModule = {
+    new LibpfmCoreSensorModule(libpfmHelper, timeout, topology, configuration, events)
   }
 
   def apply(events: Set[String]): LibpfmCoreSensorModule = {
-    new LibpfmCoreSensorModule(timeout, topology, configuration, events)
+    new LibpfmCoreSensorModule(libpfmHelper, timeout, topology, configuration, events)
+  }
+
+  def apply(libpfmHelper: LibpfmHelper, events: Set[String]): LibpfmCoreSensorModule = {
+    new LibpfmCoreSensorModule(libpfmHelper, timeout, topology, configuration, events)
   }
 }

powerapi-core/src/main/scala/org/powerapi/module/libpfm/LibpfmCoreProcessModule.scala

@@ -29,15 +29,21 @@ import org.powerapi.module.libpfm.cycles.{LibpfmCoreCyclesFormulaConfiguration,
 import scala.collection.BitSet
 import scala.concurrent.duration.FiniteDuration
 
-class LibpfmCoreProcessModule(timeout: Timeout, topology: Map[Int, Set[Int]], configuration: BitSet, events: Set[String], inDepth: Boolean,
+class LibpfmCoreProcessModule(libpfmHelper: LibpfmHelper, timeout: Timeout, topology: Map[Int, Set[Int]], configuration: BitSet, events: Set[String], inDepth: Boolean,
                               cyclesThreadName: String, cyclesRefName: String, formulae: Map[Double, List[Double]], samplingInterval: FiniteDuration) extends PowerModule {
 
-  lazy val underlyingSensorsClasses  = Seq((classOf[LibpfmCoreProcessSensor], Seq(new LinuxHelper, timeout, topology, configuration, events, inDepth)))
+  lazy val underlyingSensorsClasses  = Seq((classOf[LibpfmCoreProcessSensor], Seq(new LinuxHelper, libpfmHelper, timeout, topology, configuration, events, inDepth)))
   lazy val underlyingFormulaeClasses = Seq((classOf[LibpfmCoreCyclesFormula], Seq(cyclesThreadName, cyclesRefName, formulae, samplingInterval)))
 }
 
 object LibpfmCoreProcessModule extends LibpfmCoreProcessSensorConfiguration with LibpfmCoreCyclesFormulaConfiguration {
+  lazy val libpfmHelper = new LibpfmHelper
+
   def apply(): LibpfmCoreProcessModule = {
-    new LibpfmCoreProcessModule(timeout, topology, configuration, events, inDepth, cyclesThreadName, cyclesRefName, formulae, samplingInterval)
+    new LibpfmCoreProcessModule(libpfmHelper, timeout, topology, configuration, events, inDepth, cyclesThreadName, cyclesRefName, formulae, samplingInterval)
+  }
+
+  def apply(libpfmHelper: LibpfmHelper): LibpfmCoreProcessModule = {
+    new LibpfmCoreProcessModule(libpfmHelper, timeout, topology, configuration, events, inDepth, cyclesThreadName, cyclesRefName, formulae, samplingInterval)
   }
 }