github.com/ttpreport/gvisor-ligolo@v0.0.0-20240123134145-a858404967ba/pkg/syncevent/syncevent.go (about)

     1  // Copyright 2020 The gVisor Authors.
     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 syncevent provides efficient primitives for goroutine
    16  // synchronization based on event bitmasks.
    17  package syncevent
    18  
    19  // Set is a bitmask where each bit represents a distinct user-defined event.
    20  // The event package does not treat any bits in Set specially.
    21  type Set uint64
    22  
    23  const (
    24  	// NoEvents is a Set containing no events.
    25  	NoEvents = Set(0)
    26  
    27  	// AllEvents is a Set containing all possible events.
    28  	AllEvents = ^Set(0)
    29  
    30  	// MaxEvents is the number of distinct events that can be represented by a Set.
    31  	MaxEvents = 64
    32  )