Source file
src/net/rawconn.go
1
2
3
4
5 package net
6
7 import (
8 "internal/poll"
9 "runtime"
10 "syscall"
11 )
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20
21
22 type rawConn struct {
23 fd *netFD
24 }
25
26 func (c *rawConn) ok() bool { return c != nil && c.fd != nil }
27
28 func (c *rawConn) Control(f func(uintptr)) error {
29 if !c.ok() {
30 return syscall.EINVAL
31 }
32 err := c.fd.pfd.RawControl(f)
33 runtime.KeepAlive(c.fd)
34 if err != nil {
35 err = &OpError{Op: "raw-control", Net: c.fd.net, Source: nil, Addr: c.fd.laddr, Err: err}
36 }
37 return err
38 }
39
40 func (c *rawConn) Read(f func(uintptr) bool) error {
41 if !c.ok() {
42 return syscall.EINVAL
43 }
44 err := c.fd.pfd.RawRead(f)
45 runtime.KeepAlive(c.fd)
46 if err != nil {
47 err = &OpError{Op: "raw-read", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
48 }
49 return err
50 }
51
52 func (c *rawConn) Write(f func(uintptr) bool) error {
53 if !c.ok() {
54 return syscall.EINVAL
55 }
56 err := c.fd.pfd.RawWrite(f)
57 runtime.KeepAlive(c.fd)
58 if err != nil {
59 err = &OpError{Op: "raw-write", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
60 }
61 return err
62 }
63
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68
69
70
71 func (c *rawConn) PollFD() *poll.FD {
72 if !c.ok() {
73 return nil
74 }
75 return &c.fd.pfd
76 }
77
78 func newRawConn(fd *netFD) (*rawConn, error) {
79 return &rawConn{fd: fd}, nil
80 }
81
82 type rawListener struct {
83 rawConn
84 }
85
86 func (l *rawListener) Read(func(uintptr) bool) error {
87 return syscall.EINVAL
88 }
89
90 func (l *rawListener) Write(func(uintptr) bool) error {
91 return syscall.EINVAL
92 }
93
94 func newRawListener(fd *netFD) (*rawListener, error) {
95 return &rawListener{rawConn{fd: fd}}, nil
96 }
97
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