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sockopts_unix.go
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/
sockopts_unix.go
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// Copyright (c) 2019 The Gnet Authors. All rights reserved.
//
// 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.
//go:build linux || freebsd || dragonfly || netbsd || openbsd
// +build linux freebsd dragonfly netbsd openbsd
package socket
import (
"errors"
"os"
"golang.org/x/sys/unix"
)
// SetKeepAlivePeriod sets whether the operating system should send
// keep-alive messages on the connection and sets period between TCP keep-alive probes.
func SetKeepAlivePeriod(fd, secs int) error {
if secs <= 0 {
return errors.New("invalid time duration")
}
if err := os.NewSyscallError("setsockopt", unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_KEEPALIVE, 1)); err != nil {
return err
}
if err := os.NewSyscallError("setsockopt", unix.SetsockoptInt(fd, unix.IPPROTO_TCP, unix.TCP_KEEPINTVL, secs)); err != nil {
return err
}
return os.NewSyscallError("setsockopt", unix.SetsockoptInt(fd, unix.IPPROTO_TCP, unix.TCP_KEEPIDLE, secs))
}