1 // Copyright 2017 The etcd 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 linux && !cov 16 // +build linux,!cov 17 18 package osutil 19 20 import ( 21 "syscall" 22 "unsafe" 23 ) 24 25 // dflSignal sets the given signal to SIG_DFL 26 func dflSignal(sig syscall.Signal) { 27 // clearing out the sigact sets the signal to SIG_DFL 28 var sigactBuf [32]uint64 29 ptr := unsafe.Pointer(&sigactBuf) 30 syscall.Syscall6(uintptr(syscall.SYS_RT_SIGACTION), uintptr(sig), uintptr(ptr), 0, 8, 0, 0) 31 } 32