diff options
Diffstat (limited to 'unsafe')
| -rw-r--r-- | unsafe/src/main/java/org/apache/spark/unsafe/array/ByteArrayMethods.java | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/unsafe/src/main/java/org/apache/spark/unsafe/array/ByteArrayMethods.java b/unsafe/src/main/java/org/apache/spark/unsafe/array/ByteArrayMethods.java index cf693d01a4..70b81ce015 100644 --- a/unsafe/src/main/java/org/apache/spark/unsafe/array/ByteArrayMethods.java +++ b/unsafe/src/main/java/org/apache/spark/unsafe/array/ByteArrayMethods.java @@ -25,6 +25,12 @@ public class ByteArrayMethods { // Private constructor, since this class only contains static methods. } + /** Returns the next number greater or equal num that is power of 2. */ + public static long nextPowerOf2(long num) { + final long highBit = Long.highestOneBit(num); + return (highBit == num) ? num : highBit << 1; + } + public static int roundNumberOfBytesToNearestWord(int numBytes) { int remainder = numBytes & 0x07; // This is equivalent to `numBytes % 8` if (remainder == 0) { |