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intel_pstate.c

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  • bitmap_util.go 1.44 KiB
    /*
     * 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 compliance with
     * the License.  You may obtain a copy of the License at
     *
     *     http://www.apache.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.
     */
    
    package utils
    
    import (
    	"github.com/RoaringBitmap/roaring"
    )
    
    import (
    	"github.com/apache/dubbo-go/protocol"
    )
    
    var EmptyAddr = roaring.NewBitmap()
    
    func JoinIfNotEqual(left *roaring.Bitmap, right *roaring.Bitmap) *roaring.Bitmap {
    	if !left.Equals(right) {
    		left = left.Clone()
    		left.And(right)
    	}
    	return left
    }
    
    func FallbackIfJoinToEmpty(left *roaring.Bitmap, right *roaring.Bitmap) *roaring.Bitmap {
    	ret := JoinIfNotEqual(left, right)
    	if ret == nil || ret.IsEmpty() {
    		return right
    	} else {
    		return ret
    	}
    }
    
    func ToBitmap(invokers []protocol.Invoker) *roaring.Bitmap {
    	bitmap := roaring.NewBitmap()
    	bitmap.AddRange(0, uint64(len(invokers)))
    	return bitmap
    }