org.apache.hadoop.io.compress.bzip2.CRC Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in org.apache.hadoop.shaded.com.liance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org.apache.hadoop.shaded.org.licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/*
* This package is based on the work done by Keiron Liddle, Aftex Software
* > 24) ^ inCh;
if (temp < 0) {
temp = 256 + temp;
}
globalCrc = (globalCrc << 8) ^ CRC.crc32Table[temp];
}
void updateCRC(int inCh, int repeat) {
int globalCrcShadow = this.globalCrc;
while (repeat-- > 0) {
int temp = (globalCrcShadow >> 24) ^ inCh;
globalCrcShadow = (globalCrcShadow << 8)
^ crc32Table[(temp >= 0) ? temp : (temp + 256)];
}
this.globalCrc = globalCrcShadow;
}
int globalCrc;
}
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