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host.go
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host.go
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//
//
// Tencent is pleased to support the open source community by making tRPC available.
//
// Copyright (C) 2023 THL A29 Limited, a Tencent company.
// All rights reserved.
//
// If you have downloaded a copy of the tRPC source code from Tencent,
// please note that tRPC source code is licensed under the Apache 2.0 License,
// A copy of the Apache 2.0 License is included in this file.
//
//
// Package traces
package traces
import (
"net"
"os"
"sync"
"go.opentelemetry.io/otel/attribute"
semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
)
var (
hostname string
hostnameOnce sync.Once
)
const localhost = "127.0.0.1"
func peerInfo(addr net.Addr) []attribute.KeyValue {
if addr == nil {
return nil
}
host, port, err := net.SplitHostPort(addr.String())
if err != nil {
return []attribute.KeyValue{}
}
if host == "" {
host = localhost
}
return []attribute.KeyValue{
semconv.NetPeerIPKey.String(host),
semconv.NetPeerPortKey.String(port),
}
}
func hostInfo(addr net.Addr) []attribute.KeyValue {
if addr == nil {
return []attribute.KeyValue{
semconv.NetHostNameKey.String(getHostname()),
}
}
host, port, err := net.SplitHostPort(addr.String())
if err != nil {
return []attribute.KeyValue{
semconv.NetHostNameKey.String(getHostname()),
}
}
if host == "" {
host = localhost
}
return []attribute.KeyValue{
semconv.NetHostIPKey.String(host),
semconv.NetHostPortKey.String(port),
semconv.NetHostNameKey.String(getHostname()),
}
}
// getHostname
func getHostname() string {
hostnameOnce.Do(func() {
hostname, _ = os.Hostname()
})
return hostname
}