diff options
Diffstat (limited to 'src/main/java/org/traccar/helper')
| -rw-r--r-- | src/main/java/org/traccar/helper/BitUtil.java | 4 | ||||
| -rw-r--r-- | src/main/java/org/traccar/helper/BufferUtil.java | 6 |
2 files changed, 8 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/helper/BitUtil.java b/src/main/java/org/traccar/helper/BitUtil.java index b6108edff..829ddebc9 100644 --- a/src/main/java/org/traccar/helper/BitUtil.java +++ b/src/main/java/org/traccar/helper/BitUtil.java @@ -1,5 +1,5 @@ /* - * Copyright 2015 Anton Tananaev (anton@traccar.org) + * Copyright 2015 - 2022 Anton Tananaev (anton@traccar.org) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -21,7 +21,7 @@ public final class BitUtil { } public static boolean check(long number, int index) { - return (number & (1 << index)) != 0; + return (number & (1L << index)) != 0; } public static int between(int number, int from, int to) { diff --git a/src/main/java/org/traccar/helper/BufferUtil.java b/src/main/java/org/traccar/helper/BufferUtil.java index 1e1a687fa..0dbe0a4ad 100644 --- a/src/main/java/org/traccar/helper/BufferUtil.java +++ b/src/main/java/org/traccar/helper/BufferUtil.java @@ -27,6 +27,12 @@ public final class BufferUtil { private BufferUtil() { } + public static int readSignedMagnitudeInt(ByteBuf buffer) { + long value = buffer.readUnsignedInt(); + int result = (int) BitUtil.to(value, 31); + return BitUtil.check(value, 31) ? -result : result; + } + public static int indexOf(ByteBuf buffer, int fromIndex, int toIndex, byte value, int count) { int startIndex = fromIndex; for (int i = 0; i < count; i++) { |