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https://github.com/golang/go
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37 lines
836 B
Go
37 lines
836 B
Go
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// compile
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package p
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type NodeLink struct{}
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// A role our end of NodeLink is intended to play
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type LinkRole int64
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const (
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LinkServer LinkRole = iota // link created as server
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LinkClient // link created as client
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// for testing:
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linkNoRecvSend LinkRole = 1 << 16 // do not spawn serveRecv & serveSend
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linkFlagsMask LinkRole = (1<<32 - 1) << 16
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)
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func NewNodeLink(role LinkRole) *NodeLink {
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var nextConnId uint32
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switch role &^ linkFlagsMask {
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case LinkServer:
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nextConnId = 0 // all initiated by us connId will be even
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case LinkClient:
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nextConnId = 1 // ----//---- odd
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default:
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panic("invalid conn role")
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}
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_ = nextConnId
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return nil
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}
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