github.com/sagernet/gvisor@v0.0.0-20240428053021-e691de28565f/pkg/sync/locking/lockdep_norace.go (about)

     1  // Copyright 2022 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  //go:build !lockdep
    16  // +build !lockdep
    17  
    18  package locking
    19  
    20  import (
    21  	"reflect"
    22  )
    23  
    24  type goroutineLocks map[*MutexClass]bool
    25  
    26  // MutexClass is a stub class without the lockdep tag.
    27  type MutexClass struct{}
    28  
    29  // NewMutexClass is no-op without the lockdep tag.
    30  func NewMutexClass(reflect.Type, []string) *MutexClass {
    31  	return nil
    32  }
    33  
    34  // AddGLock is no-op without the lockdep tag.
    35  //
    36  //go:inline
    37  func AddGLock(*MutexClass, int) {}
    38  
    39  // DelGLock is no-op without the lockdep tag.
    40  //
    41  //go:inline
    42  func DelGLock(*MutexClass, int) {}