github.com/lianghucheng/zrddz@v0.0.0-20200923083010-c71f680932e2/src/golang.org/x/net/internal/socket/msghdr_linux_32bit.go (about)

     1  // Copyright 2017 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build arm mips mipsle 386
     6  // +build linux
     7  
     8  package socket
     9  
    10  import "unsafe"
    11  
    12  func (h *msghdr) setIov(vs []iovec) {
    13  	l := len(vs)
    14  	if l == 0 {
    15  		return
    16  	}
    17  	h.Iov = &vs[0]
    18  	h.Iovlen = uint32(l)
    19  }
    20  
    21  func (h *msghdr) setControl(b []byte) {
    22  	h.Control = (*byte)(unsafe.Pointer(&b[0]))
    23  	h.Controllen = uint32(len(b))
    24  }