dep ensure

vendor/github.com/hanwen/go-fuse/fuse/syscall_linux.go

@@ -0,0 +1,49 @@
+// Copyright 2016 the Go-FUSE Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package fuse
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+// TODO - move these into Go's syscall package.
+
+func sys_writev(fd int, iovecs *syscall.Iovec, cnt int) (n int, err error) {
+	n1, _, e1 := syscall.Syscall(
+		syscall.SYS_WRITEV,
+		uintptr(fd), uintptr(unsafe.Pointer(iovecs)), uintptr(cnt))
+	n = int(n1)
+	if e1 != 0 {
+		err = syscall.Errno(e1)
+	}
+	return n, err
+}
+
+func writev(fd int, packet [][]byte) (n int, err error) {
+	iovecs := make([]syscall.Iovec, 0, len(packet))
+
+	for _, v := range packet {
+		if len(v) == 0 {
+			continue
+		}
+		vec := syscall.Iovec{
+			Base: &v[0],
+		}
+		vec.SetLen(len(v))
+		iovecs = append(iovecs, vec)
+	}
+
+	sysErr := handleEINTR(func() error {
+		var err error
+		n, err = sys_writev(fd, &iovecs[0], len(iovecs))
+		return err
+	})
+	if sysErr != nil {
+		err = os.NewSyscallError("writev", sysErr)
+	}
+	return n, err
+}