mirror of https://github.com/k3s-io/k3s
46 lines
1.4 KiB
Go
46 lines
1.4 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"net"
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)
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// NetworkInterfacer defines an interface for several net library functions. Production
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// code will forward to net library functions, and unit tests will override the methods
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// for testing purposes.
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type NetworkInterfacer interface {
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Addrs(intf *net.Interface) ([]net.Addr, error)
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Interfaces() ([]net.Interface, error)
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}
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// RealNetwork implements the NetworkInterfacer interface for production code, just
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// wrapping the underlying net library function calls.
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type RealNetwork struct{}
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// Addrs wraps net.Interface.Addrs(), it's a part of NetworkInterfacer interface.
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func (_ RealNetwork) Addrs(intf *net.Interface) ([]net.Addr, error) {
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return intf.Addrs()
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}
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// Interfaces wraps net.Interfaces(), it's a part of NetworkInterfacer interface.
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func (_ RealNetwork) Interfaces() ([]net.Interface, error) {
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return net.Interfaces()
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}
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var _ NetworkInterfacer = &RealNetwork{}
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