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authorSven Gothel <[email protected]>2013-06-22 07:18:14 +0200
committerSven Gothel <[email protected]>2013-06-22 07:18:14 +0200
commita7545f4fda73c215cff0da7256417bc1d1bd450b (patch)
tree0b9e470864e8842a433c90e53df5fd74ac0c3622 /src/java/jogamp/common/os/DynamicLinkerImpl.java
parent26bd0f9aa06c3294198f961fadff04ecd8e93cdc (diff)
Fix commit eb842815498f5926828b49c48fffce22fc9586a2: Adding missing files
Diffstat (limited to 'src/java/jogamp/common/os/DynamicLinkerImpl.java')
-rw-r--r--src/java/jogamp/common/os/DynamicLinkerImpl.java90
1 files changed, 90 insertions, 0 deletions
diff --git a/src/java/jogamp/common/os/DynamicLinkerImpl.java b/src/java/jogamp/common/os/DynamicLinkerImpl.java
new file mode 100644
index 0000000..4686cd2
--- /dev/null
+++ b/src/java/jogamp/common/os/DynamicLinkerImpl.java
@@ -0,0 +1,90 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.common.os;
+
+import com.jogamp.common.os.DynamicLinker;
+import com.jogamp.common.util.LongObjectHashMap;
+
+/* pp */ abstract class DynamicLinkerImpl implements DynamicLinker {
+
+ //
+ // Package private scope of class w/ protected native code access
+ // and sealed jogamp.common.* package definition
+ // ensuring no abuse via subclassing.
+ //
+
+ private final LongObjectHashMap libHandle2Name = new LongObjectHashMap( 16 /* initialCapacity */ );
+
+ protected static final class LibRef {
+ public LibRef(String name) {
+ this.name = name;
+ this.refCount = 1;
+ }
+ public final int incrRefCount() { return ++refCount; }
+ public final int decrRefCount() { return --refCount; }
+ public final int getRefCount() { return refCount; }
+
+ public final String getName() { return name; }
+ public final String toString() { return "LibRef["+name+", refCount "+refCount+"]"; }
+
+ private final String name;
+ private int refCount;
+ }
+
+ protected final synchronized LibRef getLibRef(long handle) {
+ return (LibRef) libHandle2Name.get(handle);
+ }
+
+ protected final synchronized LibRef incrLibRefCount(long handle, String libName) {
+ LibRef libRef = getLibRef(handle);
+ if( null == libRef ) {
+ libRef = new LibRef(libName);
+ libHandle2Name.put(handle, libRef);
+ } else {
+ libRef.incrRefCount();
+ }
+ if(DEBUG) {
+ System.err.println("DynamicLinkerImpl.incrLibRefCount 0x"+Long.toHexString(handle)+ " -> "+libRef+", libs loaded "+libHandle2Name.size());
+ }
+ return libRef;
+ }
+
+ protected final synchronized LibRef decrLibRefCount(long handle) {
+ LibRef libRef = getLibRef(handle);
+ if( null != libRef ) {
+ if( 0 == libRef.decrRefCount() ) {
+ libHandle2Name.remove(handle);
+ }
+ }
+ if(DEBUG) {
+ System.err.println("DynamicLinkerImpl.decrLibRefCount 0x"+Long.toHexString(handle)+ " -> "+libRef+", libs loaded "+libHandle2Name.size());
+ }
+ return libRef;
+ }
+
+}