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  }