golang fd_writev_darwin 代码
文件路径：/src/internal/poll/fd_writev_darwin.go
/ Copyright 2018 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/go:build darwin
package poll
import (
"syscall"
_ "unsafe" / for go:linkname
)
/ Implemented in syscall/syscall_darwin.go.
/
/go:linkname writev syscall.writev
func writev(fd int, iovecs []syscall.Iovec) (uintptr, error)