summaryrefslogtreecommitdiff
path: root/vendor/golang.org/x/net/internal/socket/rawconn_msg.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/golang.org/x/net/internal/socket/rawconn_msg.go')
-rw-r--r--vendor/golang.org/x/net/internal/socket/rawconn_msg.go77
1 files changed, 77 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_msg.go b/vendor/golang.org/x/net/internal/socket/rawconn_msg.go
new file mode 100644
index 0000000..b21d2e6
--- /dev/null
+++ b/vendor/golang.org/x/net/internal/socket/rawconn_msg.go
@@ -0,0 +1,77 @@
+// 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.
+
+// +build go1.9
+// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
+
+package socket
+
+import (
+ "os"
+ "syscall"
+)
+
+func (c *Conn) recvMsg(m *Message, flags int) error {
+ var h msghdr
+ vs := make([]iovec, len(m.Buffers))
+ var sa []byte
+ if c.network != "tcp" {
+ sa = make([]byte, sizeofSockaddrInet6)
+ }
+ h.pack(vs, m.Buffers, m.OOB, sa)
+ var operr error
+ var n int
+ fn := func(s uintptr) bool {
+ n, operr = recvmsg(s, &h, flags)
+ if operr == syscall.EAGAIN {
+ return false
+ }
+ return true
+ }
+ if err := c.c.Read(fn); err != nil {
+ return err
+ }
+ if operr != nil {
+ return os.NewSyscallError("recvmsg", operr)
+ }
+ if c.network != "tcp" {
+ var err error
+ m.Addr, err = parseInetAddr(sa[:], c.network)
+ if err != nil {
+ return err
+ }
+ }
+ m.N = n
+ m.NN = h.controllen()
+ m.Flags = h.flags()
+ return nil
+}
+
+func (c *Conn) sendMsg(m *Message, flags int) error {
+ var h msghdr
+ vs := make([]iovec, len(m.Buffers))
+ var sa []byte
+ if m.Addr != nil {
+ sa = marshalInetAddr(m.Addr)
+ }
+ h.pack(vs, m.Buffers, m.OOB, sa)
+ var operr error
+ var n int
+ fn := func(s uintptr) bool {
+ n, operr = sendmsg(s, &h, flags)
+ if operr == syscall.EAGAIN {
+ return false
+ }
+ return true
+ }
+ if err := c.c.Write(fn); err != nil {
+ return err
+ }
+ if operr != nil {
+ return os.NewSyscallError("sendmsg", operr)
+ }
+ m.N = n
+ m.NN = len(m.OOB)
+ return nil
+}