github.com/pawelgaczynski/gain@v0.4.0-alpha.0.20230821120126-41f1e60a18da/flags.go (about) 1 // Copyright (c) 2023 Paweł Gaczyński 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package gain 16 17 const ( 18 acceptDataFlag uint64 = 1 << (uint64Size - 1 - iota) 19 readDataFlag 20 writeDataFlag 21 addConnFlag 22 closeConnFlag 23 ) 24 25 const allFlagsMask = acceptDataFlag | readDataFlag | writeDataFlag | addConnFlag | 26 closeConnFlag 27 28 func flagToString(flag uint64) string { 29 switch { 30 case flag&acceptDataFlag > 0: 31 return "accept flag" 32 case flag&readDataFlag > 0: 33 return "read flag" 34 case flag&writeDataFlag > 0: 35 return "write flag" 36 case flag&addConnFlag > 0: 37 return "add conn flag" 38 case flag&closeConnFlag > 0: 39 return "close conn flag" 40 } 41 42 return "unknown flag" 43 }