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d4cc074187
Updates #13038 Change-Id: I89ce2129fee856f97986d6313d2b661c76476c0c Signed-off-by: Maisem Ali <maisem@tailscale.com>
40 lines
609 B
Go
40 lines
609 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package vnet
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import (
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"io"
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"os"
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"sync"
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"github.com/google/gopacket"
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"github.com/google/gopacket/pcapgo"
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)
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type pcapWriter struct {
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f *os.File
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mu sync.Mutex
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w *pcapgo.NgWriter
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}
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func (p *pcapWriter) WritePacket(ci gopacket.CaptureInfo, data []byte) error {
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p.mu.Lock()
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defer p.mu.Unlock()
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if p.w == nil {
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return io.ErrClosedPipe
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}
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return p.w.WritePacket(ci, data)
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}
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func (p *pcapWriter) Close() error {
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p.mu.Lock()
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defer p.mu.Unlock()
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if p.w != nil {
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p.w.Flush()
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p.w = nil
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}
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return p.f.Close()
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}
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