status-go/vendor/github.com/spacemonkeygo/spacelog/capture_linux.go

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2019-06-09 07:24:20 +00:00
// Copyright (C) 2014 Space Monkey, Inc.
//
// 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.
// +build !appengine
package spacelog
import (
"syscall"
)
// CaptureOutputToFd redirects the current process' stdout and stderr file
// descriptors to the given file descriptor, using the dup3 syscall.
func CaptureOutputToFd(fd int) error {
err := syscall.Dup3(fd, syscall.Stdout, 0)
if err != nil {
return err
}
err = syscall.Dup3(fd, syscall.Stderr, 0)
if err != nil {
return err
}
return nil
}