github.com/code-reading/golang@v0.0.0-20220303082512-ba5bc0e589a3/go/src/syscall/net_js.go (about)

     1  // Copyright 2018 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  // js/wasm uses fake networking directly implemented in the net package.
     6  // This file only exists to make the compiler happy.
     7  
     8  //go:build js && wasm
     9  // +build js,wasm
    10  
    11  package syscall
    12  
    13  const (
    14  	AF_UNSPEC = iota
    15  	AF_UNIX
    16  	AF_INET
    17  	AF_INET6
    18  )
    19  
    20  const (
    21  	SOCK_STREAM = 1 + iota
    22  	SOCK_DGRAM
    23  	SOCK_RAW
    24  	SOCK_SEQPACKET
    25  )
    26  
    27  const (
    28  	IPPROTO_IP   = 0
    29  	IPPROTO_IPV4 = 4
    30  	IPPROTO_IPV6 = 0x29
    31  	IPPROTO_TCP  = 6
    32  	IPPROTO_UDP  = 0x11
    33  )
    34  
    35  const (
    36  	_ = iota
    37  	IPV6_V6ONLY
    38  	SOMAXCONN
    39  	SO_ERROR
    40  )
    41  
    42  // Misc constants expected by package net but not supported.
    43  const (
    44  	_ = iota
    45  	F_DUPFD_CLOEXEC
    46  	SYS_FCNTL = 500 // unsupported
    47  )
    48  
    49  type Sockaddr interface {
    50  }
    51  
    52  type SockaddrInet4 struct {
    53  	Port int
    54  	Addr [4]byte
    55  }
    56  
    57  type SockaddrInet6 struct {
    58  	Port   int
    59  	ZoneId uint32
    60  	Addr   [16]byte
    61  }
    62  
    63  type SockaddrUnix struct {
    64  	Name string
    65  }
    66  
    67  func Socket(proto, sotype, unused int) (fd int, err error) {
    68  	return 0, ENOSYS
    69  }
    70  
    71  func Bind(fd int, sa Sockaddr) error {
    72  	return ENOSYS
    73  }
    74  
    75  func StopIO(fd int) error {
    76  	return ENOSYS
    77  }
    78  
    79  func Listen(fd int, backlog int) error {
    80  	return ENOSYS
    81  }
    82  
    83  func Accept(fd int) (newfd int, sa Sockaddr, err error) {
    84  	return 0, nil, ENOSYS
    85  }
    86  
    87  func Connect(fd int, sa Sockaddr) error {
    88  	return ENOSYS
    89  }
    90  
    91  func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
    92  	return 0, nil, ENOSYS
    93  }
    94  
    95  func Sendto(fd int, p []byte, flags int, to Sockaddr) error {
    96  	return ENOSYS
    97  }
    98  
    99  func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn, recvflags int, from Sockaddr, err error) {
   100  	return 0, 0, 0, nil, ENOSYS
   101  }
   102  
   103  func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
   104  	return 0, ENOSYS
   105  }
   106  
   107  func GetsockoptInt(fd, level, opt int) (value int, err error) {
   108  	return 0, ENOSYS
   109  }
   110  
   111  func SetsockoptInt(fd, level, opt int, value int) error {
   112  	return nil
   113  }
   114  
   115  func SetReadDeadline(fd int, t int64) error {
   116  	return ENOSYS
   117  }
   118  
   119  func SetWriteDeadline(fd int, t int64) error {
   120  	return ENOSYS
   121  }
   122  
   123  func Shutdown(fd int, how int) error {
   124  	return ENOSYS
   125  }
   126  
   127  func SetNonblock(fd int, nonblocking bool) error {
   128  	return nil
   129  }