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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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7f4fb34182
It is better developing vmctl tool in VictoriaMetrics repository, so it could be released together with the rest of vmutils tools such as vmalert, vmagent, vmbackup, vmrestore and vmauth.
42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package model
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// Inline and byte-free variant of hash/fnv's fnv64a.
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const (
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offset64 = 14695981039346656037
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prime64 = 1099511628211
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)
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// hashNew initializes a new fnv64a hash value.
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func hashNew() uint64 {
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return offset64
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}
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// hashAdd adds a string to a fnv64a hash value, returning the updated hash.
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func hashAdd(h uint64, s string) uint64 {
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for i := 0; i < len(s); i++ {
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h ^= uint64(s[i])
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h *= prime64
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}
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return h
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}
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// hashAddByte adds a byte to a fnv64a hash value, returning the updated hash.
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func hashAddByte(h uint64, b byte) uint64 {
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h ^= uint64(b)
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h *= prime64
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return h
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}
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