48 lines
926 B
Go
48 lines
926 B
Go
//go:build !linux
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package fuse
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import (
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"os"
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"syscall"
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"unsafe"
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)
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func sys_writev(fd int, iovecs *syscall.Iovec, cnt int) (n int, err error) {
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n1, _, e1 := syscall.Syscall(
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syscall.SYS_WRITEV,
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uintptr(fd), uintptr(unsafe.Pointer(iovecs)), uintptr(cnt))
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n = int(n1)
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if e1 != 0 {
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err = syscall.Errno(e1)
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}
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return n, err
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}
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// Until golang.orgx/sys/unix provides Writev for Darwin and FreeBSD,
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// keep the syscall wrapping funcitons.
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func writev(fd int, packet [][]byte) (n int, err error) {
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iovecs := make([]syscall.Iovec, 0, len(packet))
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for _, v := range packet {
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if len(v) == 0 {
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continue
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}
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vec := syscall.Iovec{
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Base: &v[0],
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}
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vec.SetLen(len(v))
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iovecs = append(iovecs, vec)
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}
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sysErr := handleEINTR(func() error {
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var err error
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n, err = sys_writev(fd, &iovecs[0], len(iovecs))
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return err
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})
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if sysErr != nil {
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err = os.NewSyscallError("writev", sysErr)
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}
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return n, err
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}
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