mirror of https://gitee.com/IrisVega/frp.git
39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
// Copyright 2016 fatedier, fatedier@gmail.com
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package tcp
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import (
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"io"
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"sync"
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)
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// Join two io.ReadWriteCloser and do some operations.
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func Join(c1 io.ReadWriteCloser, c2 io.ReadWriteCloser) (inCount int64, outCount int64) {
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var wait sync.WaitGroup
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pipe := func(to io.ReadWriteCloser, from io.ReadWriteCloser, count *int64) {
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defer to.Close()
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defer from.Close()
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defer wait.Done()
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*count, _ = io.Copy(to, from)
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}
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wait.Add(2)
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go pipe(c1, c2, &inCount)
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go pipe(c2, c1, &outCount)
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wait.Wait()
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return
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}
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