43 lines
942 B
Go
43 lines
942 B
Go
// Copyright 2016 the Go-FUSE 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 fuse
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import (
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"log"
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"syscall"
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)
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func (ms *Server) systemWrite(req *request, header []byte) Status {
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if req.flatDataSize() == 0 {
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err := handleEINTR(func() error {
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_, err := syscall.Write(ms.mountFd, header)
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return err
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})
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return ToStatus(err)
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}
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if req.fdData != nil {
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if ms.canSplice {
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err := ms.trySplice(header, req, req.fdData)
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if err == nil {
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req.readResult.Done()
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return OK
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}
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log.Println("trySplice:", err)
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}
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sz := req.flatDataSize()
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buf := ms.allocOut(req, uint32(sz))
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req.flatData, req.status = req.fdData.Bytes(buf)
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header = req.serializeHeader(len(req.flatData))
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}
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_, err := writev(ms.mountFd, [][]byte{header, req.flatData})
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if req.readResult != nil {
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req.readResult.Done()
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}
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return ToStatus(err)
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}
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