etcd/pkg/osutil/osutil.go
Anthony Romano 7a1739a3e8 osutil: force SIG_DFL before resending terminating signal
The go runtime won't always reinstall the default signal handler on the
SIGTERM path, so it's possible the signal won't terminate the process.
Instead, force SIG_DFL for the signal.
2017-05-12 11:56:27 -07:00

46 lines
1.2 KiB
Go

// Copyright 2015 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package osutil implements operating system-related utility functions.
package osutil
import (
"os"
"strings"
"github.com/coreos/pkg/capnslog"
)
var (
plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "pkg/osutil")
// support to override setting SIG_DFL so tests don't terminate early
setDflSignal = dflSignal
)
func Unsetenv(key string) error {
envs := os.Environ()
os.Clearenv()
for _, e := range envs {
strs := strings.SplitN(e, "=", 2)
if strs[0] == key {
continue
}
if err := os.Setenv(strs[0], strs[1]); err != nil {
return err
}
}
return nil
}