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// Copyright 2017 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 linux
// +build linux
package socket
import (
"net"
"os"
)
func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
for i := range ms {
ms[i].raceWrite()
}
packer := defaultMmsghdrsPool.Get()
defer defaultMmsghdrsPool.Put(packer)
var parseFn func([]byte, string) (net.Addr, error)
if c.network != "tcp" {
parseFn = parseInetAddr
}
hs := packer.pack(ms, parseFn, nil)
var operr error
var n int
fn := func(s uintptr) bool {
n, operr = recvmmsg(s, hs, flags)
return ioComplete(flags, operr)
}
if err := c.c.Read(fn); err != nil {
return n, err
}
if operr != nil {
return n, os.NewSyscallError("recvmmsg", operr)
}
if err := hs[:n].unpack(ms[:n], parseFn, c.network); err != nil {
return n, err
}
return n, nil
}
func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
for i := range ms {
ms[i].raceRead()
}
packer := defaultMmsghdrsPool.Get()
defer defaultMmsghdrsPool.Put(packer)
var marshalFn func(net.Addr, []byte) int
if c.network != "tcp" {
marshalFn = marshalInetAddr
}
hs := packer.pack(ms, nil, marshalFn)
var operr error
var n int
fn := func(s uintptr) bool {
n, operr = sendmmsg(s, hs, flags)
return ioComplete(flags, operr)
}
if err := c.c.Write(fn); err != nil {
return n, err
}
if operr != nil {
return n, os.NewSyscallError("sendmmsg", operr)
}
if err := hs[:n].unpack(ms[:n], nil, ""); err != nil {
return n, err
}
return n, nil
}
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