diff options
Diffstat (limited to 'unsafe')
| -rw-r--r-- | unsafe/src/main/java/org/apache/spark/unsafe/hash/Murmur3_x86_32.java | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/unsafe/src/main/java/org/apache/spark/unsafe/hash/Murmur3_x86_32.java b/unsafe/src/main/java/org/apache/spark/unsafe/hash/Murmur3_x86_32.java index 85cd02469a..61f483ced3 100644 --- a/unsafe/src/main/java/org/apache/spark/unsafe/hash/Murmur3_x86_32.java +++ b/unsafe/src/main/java/org/apache/spark/unsafe/hash/Murmur3_x86_32.java @@ -44,12 +44,16 @@ public final class Murmur3_x86_32 { return fmix(h1, 4); } - public int hashUnsafeWords(Object baseObject, long baseOffset, int lengthInBytes) { + public int hashUnsafeWords(Object base, long offset, int lengthInBytes) { + return hashUnsafeWords(base, offset, lengthInBytes, seed); + } + + public static int hashUnsafeWords(Object base, long offset, int lengthInBytes, int seed) { // This is based on Guava's `Murmur32_Hasher.processRemaining(ByteBuffer)` method. assert (lengthInBytes % 8 == 0): "lengthInBytes must be a multiple of 8 (word-aligned)"; int h1 = seed; - for (int offset = 0; offset < lengthInBytes; offset += 4) { - int halfWord = PlatformDependent.UNSAFE.getInt(baseObject, baseOffset + offset); + for (int i = 0; i < lengthInBytes; i += 4) { + int halfWord = PlatformDependent.UNSAFE.getInt(base, offset + i); int k1 = mixK1(halfWord); h1 = mixH1(h1, k1); } |