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Fix the catastrophic failure caused by AdaptiveRecvByteBufAllocator.getSizeTableIndex()

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This commit is contained in:
Trustin Lee 2013-06-20 21:27:49 +09:00
parent a2f232720b
commit cfb3b977a1
1 changed files with 18 additions and 19 deletions
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37
transport/src/main/java/io/netty/channel/AdaptiveRecvByteBufAllocator.java
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@ -61,28 +61,27 @@ public class AdaptiveRecvByteBufAllocator implements RecvByteBufAllocator {
public static final AdaptiveRecvByteBufAllocator DEFAULT = new AdaptiveRecvByteBufAllocator();
private static int getSizeTableIndex(final int size) {
if (size <= 16) {
return size - 1;
}
for (int low = 0, high = SIZE_TABLE.length - 1;;) {
if (high < low) {
return 0;
}
if (high == low) {
return high;
}
int bits = 0;
int v = size;
do {
v >>>= 1;
bits ++;
} while (v != 0);
final int baseIdx = bits << 3;
final int startIdx = baseIdx - 18;
final int endIdx = baseIdx - 25;
for (int i = startIdx; i >= endIdx; i --) {
if (size >= SIZE_TABLE[i]) {
return i;
int mid = low + high >>> 1;
int a = SIZE_TABLE[mid];
int b = SIZE_TABLE[mid + 1];
if (size > b) {
low = mid + 1;
} else if (size < a) {
high = mid - 1;
} else if (size == a) {
return mid;
} else {
return mid + 1;
}
}
throw new Error("shouldn't reach here; please file a bug report.");
}
private static final class HandleImpl implements Handle {