gitee.com/ks-custle/core-gm@v0.0.0-20230922171213-b83bdd97b62c/net/internal/socket/rawconn_mmsg.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  //go:build linux
     6  // +build linux
     7  
     8  package socket
     9  
    10  import (
    11  	"net"
    12  )
    13  
    14  func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) {
    15  	for i := range ms {
    16  		ms[i].raceWrite()
    17  	}
    18  	tmps := defaultMmsgTmpsPool.Get()
    19  	defer defaultMmsgTmpsPool.Put(tmps)
    20  	var parseFn func([]byte, string) (net.Addr, error)
    21  	if c.network != "tcp" {
    22  		parseFn = parseInetAddr
    23  	}
    24  	hs := tmps.packer.pack(ms, parseFn, nil)
    25  	n, err := tmps.syscaller.recvmmsg(c.c, hs, flags)
    26  	if err != nil {
    27  		return n, err
    28  	}
    29  	if err := hs[:n].unpack(ms[:n], parseFn, c.network); err != nil {
    30  		return n, err
    31  	}
    32  	return n, nil
    33  }
    34  
    35  func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) {
    36  	for i := range ms {
    37  		ms[i].raceRead()
    38  	}
    39  	tmps := defaultMmsgTmpsPool.Get()
    40  	defer defaultMmsgTmpsPool.Put(tmps)
    41  	var marshalFn func(net.Addr, []byte) int
    42  	if c.network != "tcp" {
    43  		marshalFn = marshalInetAddr
    44  	}
    45  	hs := tmps.packer.pack(ms, nil, marshalFn)
    46  	n, err := tmps.syscaller.sendmmsg(c.c, hs, flags)
    47  	if err != nil {
    48  		return n, err
    49  	}
    50  	if err := hs[:n].unpack(ms[:n], nil, ""); err != nil {
    51  		return n, err
    52  	}
    53  	return n, nil
    54  }