org.infinispan.container.offheap.Bits Maven / Gradle / Ivy
package org.infinispan.container.offheap;
/**
* Utility method for inserting and retrieving values from to/from a byte[]
*
* @author wburns
* @since 9.0
*/
public class Bits {
static int getInt(byte[] b, int off) {
return ((b[off + 3] & 0xFF)) +
((b[off + 2] & 0xFF) << 8) +
((b[off + 1] & 0xFF) << 16) +
((b[off]) << 24);
}
static long getLong(byte[] b, int off) {
return ((b[off + 7] & 0xFFL)) +
((b[off + 6] & 0xFFL) << 8) +
((b[off + 5] & 0xFFL) << 16) +
((b[off + 4] & 0xFFL) << 24) +
((b[off + 3] & 0xFFL) << 32) +
((b[off + 2] & 0xFFL) << 40) +
((b[off + 1] & 0xFFL) << 48) +
(((long) b[off]) << 56);
}
static void putInt(byte[] b, int off, int val) {
b[off + 3] = (byte) (val);
b[off + 2] = (byte) (val >>> 8);
b[off + 1] = (byte) (val >>> 16);
b[off] = (byte) (val >>> 24);
}
static void putLong(byte[] b, int off, long val) {
b[off + 7] = (byte) (val);
b[off + 6] = (byte) (val >>> 8);
b[off + 5] = (byte) (val >>> 16);
b[off + 4] = (byte) (val >>> 24);
b[off + 3] = (byte) (val >>> 32);
b[off + 2] = (byte) (val >>> 40);
b[off + 1] = (byte) (val >>> 48);
b[off] = (byte) (val >>> 56);
}
}
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