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

     1  // Copyright 2019 The gVisor Authors.
     2  //
     3  // Use of this source code is governed by a BSD-style
     4  // license that can be found in the LICENSE file.
     5  
     6  //go:build !race
     7  // +build !race
     8  
     9  package sync
    10  
    11  import (
    12  	"sync/atomic"
    13  	"unsafe"
    14  )
    15  
    16  // RaceEnabled is true if the Go data race detector is enabled.
    17  const RaceEnabled = false
    18  
    19  // RaceDisable has the same semantics as runtime.RaceDisable.
    20  func RaceDisable() {
    21  }
    22  
    23  // RaceEnable has the same semantics as runtime.RaceEnable.
    24  func RaceEnable() {
    25  }
    26  
    27  // RaceAcquire has the same semantics as runtime.RaceAcquire.
    28  func RaceAcquire(addr unsafe.Pointer) {
    29  }
    30  
    31  // RaceRelease has the same semantics as runtime.RaceRelease.
    32  func RaceRelease(addr unsafe.Pointer) {
    33  }
    34  
    35  // RaceReleaseMerge has the same semantics as runtime.RaceReleaseMerge.
    36  func RaceReleaseMerge(addr unsafe.Pointer) {
    37  }
    38  
    39  // RaceUncheckedAtomicCompareAndSwapUintptr is equivalent to
    40  // sync/atomic.CompareAndSwapUintptr, but is not checked by the race detector.
    41  // This is necessary when implementing gopark callbacks, since no race context
    42  // is available during their execution.
    43  func RaceUncheckedAtomicCompareAndSwapUintptr(ptr *uintptr, old, new uintptr) bool {
    44  	// Use atomic.CompareAndSwapUintptr outside of race builds for
    45  	// inlinability.
    46  	return atomic.CompareAndSwapUintptr(ptr, old, new)
    47  }