Source file src/runtime/export_futex_test.go

Documentation: runtime

     1  // Copyright 2013 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build dragonfly || freebsd || linux
     6  // +build dragonfly freebsd linux
     7  
     8  package runtime
     9  
    10  var Futexwakeup = futexwakeup
    11  
    12  //go:nosplit
    13  func Futexsleep(addr *uint32, val uint32, ns int64) {
    14  	// Temporarily disable preemption so that a preemption signal
    15  	// doesn't interrupt the system call.
    16  	poff := debug.asyncpreemptoff
    17  	debug.asyncpreemptoff = 1
    18  	futexsleep(addr, val, ns)
    19  	debug.asyncpreemptoff = poff
    20  }
    21  

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