Merge pull request #322 from alex9849/feature/gpiod

Feature/gpiod

.run/Run on Raspberry Pi.run.xml

@@ -0,0 +1,49 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run on Raspberry Pi" type="MavenRunConfiguration" factoryName="Maven">
+    <MavenSettings>
+      <option name="myGeneralSettings" />
+      <option name="myRunnerSettings">
+        <MavenRunnerSettings>
+          <option name="delegateBuildToMaven" value="false" />
+          <option name="environmentProperties">
+            <map />
+          </option>
+          <option name="jreName" value="#USE_PROJECT_JDK" />
+          <option name="mavenProperties">
+            <map />
+          </option>
+          <option name="passParentEnv" value="true" />
+          <option name="runMavenInBackground" value="true" />
+          <option name="skipTests" value="true" />
+          <option name="vmOptions" value="" />
+        </MavenRunnerSettings>
+      </option>
+      <option name="myRunnerParameters">
+        <MavenRunnerParameters>
+          <option name="cmdOptions" />
+          <option name="profiles">
+            <set />
+          </option>
+          <option name="goals">
+            <list>
+              <option value="install" />
+            </list>
+          </option>
+          <option name="multimoduleDir" />
+          <option name="pomFileName" value="pom.xml" />
+          <option name="profilesMap">
+            <map>
+              <entry key="remote-run" value="true" />
+            </map>
+          </option>
+          <option name="projectsCmdOptionValues">
+            <list />
+          </option>
+          <option name="resolveToWorkspace" value="false" />
+          <option name="workingDirPath" value="$PROJECT_DIR$/pi4j-test" />
+        </MavenRunnerParameters>
+      </option>
+    </MavenSettings>
+    <method v="2" />
+  </configuration>
+</component>

libraries/pi4j-library-gpiod/generate-headers.sh

@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+javac src/main/java/com/pi4j/library/gpiod/internal/GpioD.java -h src/main/native

libraries/pi4j-library-gpiod/src/main/java/com/pi4j/library/gpiod/internal/CWrapper.java

@@ -0,0 +1,28 @@
+package com.pi4j.library.gpiod.internal;
+
+import java.util.Objects;
+
+public class CWrapper {
+    private long cPointer;
+
+    public CWrapper(long cPointer) {
+        this.cPointer = cPointer;
+    }
+
+    long getCPointer() {
+        return cPointer;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        CWrapper cWrapper = (CWrapper) o;
+        return cPointer == cWrapper.cPointer;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(cPointer);
+    }
+}

libraries/pi4j-library-gpiod/src/main/java/com/pi4j/library/gpiod/internal/GpioChip.java

@@ -0,0 +1,53 @@
+package com.pi4j.library.gpiod.internal;
+
+import java.io.Closeable;
+
+/**
+ * <p>GpioChip</p>
+ *
+ * @author Alexander Liggesmeyer (<a href="https://alexander.liggesmeyer.net/">https://alexander.liggesmeyer.net/</a>)
+ * @version $Id: $Id
+ */
+public class GpioChip extends CWrapper implements Closeable {
+
+    public GpioChip(long cPointer) {
+        super(cPointer);
+    }
+
+    public void close() {
+        GpioD.chipClose(this);
+    }
+
+    public String getName() {
+        return GpioD.chipGetName(this);
+    }
+
+    public String getLabel() {
+        return GpioD.chipGetLabel(this);
+    }
+
+    public int getNumLines() {
+        return GpioD.chipGetNumLines(this);
+    }
+
+    public GpioLine getLine(int offset) {
+        return GpioD.chipGetLine(this, offset);
+    }
+
+    public GpioLineBulk getLines(int[] offsets) {
+        GpioLineBulk bulk = new GpioLineBulk();
+        GpioD.chipGetLines(this, offsets, bulk);
+        return bulk;
+    }
+
+    public GpioLineBulk getLines() {
+        GpioLineBulk bulk = new GpioLineBulk();
+        GpioD.chipGetAllLines(this, bulk);
+        return bulk;
+    }
+
+    public GpioLine getLine(String name) {
+        return GpioD.chipGetLine(this, name);
+    }
+
+}

libraries/pi4j-library-gpiod/src/main/java/com/pi4j/library/gpiod/internal/GpioChipIterator.java

@@ -0,0 +1,72 @@
+package com.pi4j.library.gpiod.internal;
+
+import java.util.Iterator;
+
+/**
+ * <p>GpioChipIterator</p>
+ *
+ * @author Alexander Liggesmeyer (<a href="https://alexander.liggesmeyer.net/">https://alexander.liggesmeyer.net/</a>)
+ * @version $Id: $Id
+ */
+public class GpioChipIterator extends CWrapper implements Iterator<GpioChip> {
+
+    private boolean noCloseCurrent;
+    private GpioChip next;
+    private GpioChip current;
+
+    GpioChipIterator(long cPointer) {
+        super(cPointer);
+    }
+
+    public GpioChipIterator() {
+        this(GpioD.chipIterNew());
+    }
+
+
+    @Override
+    protected void finalize() {
+        if(next == null) {
+            if(noCloseCurrent) {
+                GpioD.chipIterFreeNoClose(this);
+            } else {
+                GpioD.chipIterFree(this);
+            }
+        } else {
+            if(!noCloseCurrent) {
+                GpioD.chipClose(current);
+            }
+            GpioD.chipIterFree(this);
+        }
+    }
+
+    @Override
+    public boolean hasNext() {
+        if(next == null) {
+            next = GpioD.chipIterNextNoClose(this);
+        }
+        return next != null;
+    }
+
+    @Override
+    public GpioChip next() {
+        if(next == null) {
+            if(noCloseCurrent) {
+                current = GpioD.chipIterNextNoClose(this);
+            } else {
+                current = GpioD.chipIterNext(this);
+            }
+        } else {
+            if(current != null && !noCloseCurrent) {
+                GpioD.chipClose(current);
+            }
+            current = next;
+            noCloseCurrent = false;
+            next = null;
+        }
+        return current;
+    }
+
+    public void noCloseCurrent() {
+        this.noCloseCurrent = true;
+    }
+}