X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.db.procore%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fprocore%2Fcluster%2FBitUtility.java;fp=bundles%2Forg.simantics.db.procore%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fprocore%2Fcluster%2FBitUtility.java;h=8e47ae8dd9546925f5265f350e2482521d04549e;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/BitUtility.java b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/BitUtility.java
new file mode 100644
index 000000000..8e47ae8dd
--- /dev/null
+++ b/bundles/org.simantics.db.procore/src/org/simantics/db/procore/cluster/BitUtility.java
@@ -0,0 +1,58 @@
+package org.simantics.db.procore.cluster;
+
+final class BitUtility {
+	static final long LongBits = 64;
+	static final int IntBits = 32;
+    static final short ShortBits = 16;
+    static final long ClearHighIntMask = (1L << IntBits) - 1;
+    static final long ClearLowIntMask = -1l ^ ClearHighIntMask;
+    static final long ClearHighShortMask = (1L << ShortBits) - 1;
+    static final long ClearLowShortMask  = -1L ^ ClearHighShortMask;
+
+    static final int getHighInt(long longValue) {
+        return (int) (longValue >>> IntBits);
+    }
+
+    static final long setHighInt(long longValue, int highValue) {
+        longValue = (longValue & ClearHighIntMask) | (long) highValue << IntBits;
+        return longValue;
+    }
+
+    static final int getLowInt(long longValue) {
+        return (int) longValue;
+    }
+
+    static final long setLowInt(long longValue, int lowValue) {
+        longValue = (longValue & ClearLowIntMask) | lowValue;
+        return longValue;
+    }
+
+    static final long setLowAndHighInt(long longValue, int lowValue, int highValue) {
+        longValue = ((long) lowValue & ClearHighIntMask) | ((long) highValue << IntBits);
+        return longValue;
+    }
+
+    static final short getLowShort(long longValue) {
+        return (short)longValue;
+    }
+
+    static final long setLowShort(long longValue, short lowValue) {
+        longValue = (longValue & ClearLowShortMask) | (lowValue & ClearHighShortMask);
+        return longValue;
+    }
+
+    static final int getMiddle(final long longValue, final int skip, final int size) {
+        return (int)(longValue >>> skip) & (1<<size)-1;
+    }
+
+    static final long setMiddle(long longValue, final int skip, final int size, int value) {
+    	long a1 = (1L<<size)-1;
+    	long m1 = (a1 << skip);
+    	long mask = -1L ^ m1;
+    	long t1 = (value & a1) << skip;
+    	long t2 = longValue & mask;
+        long t3 = t2 | t1;
+        return t3;
+    }
+
+}