// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build linux
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package socket
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import (
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"net"
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"os"
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"syscall"
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)
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func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
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hs := make(mmsghdrs, len(ms))
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var parseFn func([]byte, string) (net.Addr, error)
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if c.network != "tcp" {
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parseFn = parseInetAddr
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}
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if err := hs.pack(ms, parseFn, nil); err != nil {
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return 0, err
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}
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var operr error
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var n int
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fn := func(s uintptr) bool {
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n, operr = recvmmsg(s, hs, flags)
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if operr == syscall.EAGAIN {
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return false
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}
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return true
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}
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if err := c.c.Read(fn); err != nil {
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return n, err
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}
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if operr != nil {
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return n, os.NewSyscallError("recvmmsg", operr)
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}
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if err := hs[:n].unpack(ms[:n], parseFn, c.network); err != nil {
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return n, err
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}
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return n, nil
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}
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func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
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hs := make(mmsghdrs, len(ms))
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var marshalFn func(net.Addr) []byte
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if c.network != "tcp" {
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marshalFn = marshalInetAddr
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}
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if err := hs.pack(ms, nil, marshalFn); err != nil {
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return 0, err
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}
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var operr error
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var n int
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fn := func(s uintptr) bool {
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n, operr = sendmmsg(s, hs, flags)
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if operr == syscall.EAGAIN {
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return false
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}
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return true
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}
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if err := c.c.Write(fn); err != nil {
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return n, err
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}
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if operr != nil {
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return n, os.NewSyscallError("sendmmsg", operr)
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}
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if err := hs[:n].unpack(ms[:n], nil, ""); err != nil {
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return n, err
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}
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return n, nil
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}
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