| /* |
| 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 internal |
| |
| const ( |
| permPriority = 0x1 << 3 |
| permRead = 0x1 << 2 |
| permWrite = 0x1 << 1 |
| permInherit = 0x1 << 0 |
| ) |
| |
| func queueIsReadable(perm int) bool { |
| return (perm & permRead) == permRead |
| } |
| |
| func queueIsWriteable(perm int) bool { |
| return (perm & permWrite) == permWrite |
| } |
| |
| func queueIsInherited(perm int) bool { |
| return (perm & permInherit) == permInherit |
| } |
| |
| func perm2string(perm int) string { |
| bytes := make([]byte, 3) |
| for i := 0; i < 3; i++ { |
| bytes[i] = '-' |
| } |
| |
| if queueIsReadable(perm) { |
| bytes[0] = 'R' |
| } |
| |
| if queueIsWriteable(perm) { |
| bytes[1] = 'W' |
| } |
| |
| if queueIsInherited(perm) { |
| bytes[2] = 'X' |
| } |
| |
| return string(bytes) |
| } |