diff options
Diffstat (limited to 'vendor/google.golang.org/grpc/internal/channelz/types_linux.go')
-rw-r--r-- | vendor/google.golang.org/grpc/internal/channelz/types_linux.go | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/vendor/google.golang.org/grpc/internal/channelz/types_linux.go b/vendor/google.golang.org/grpc/internal/channelz/types_linux.go new file mode 100644 index 0000000..692dd61 --- /dev/null +++ b/vendor/google.golang.org/grpc/internal/channelz/types_linux.go | |||
@@ -0,0 +1,53 @@ | |||
1 | // +build !appengine | ||
2 | |||
3 | /* | ||
4 | * | ||
5 | * Copyright 2018 gRPC authors. | ||
6 | * | ||
7 | * Licensed under the Apache License, Version 2.0 (the "License"); | ||
8 | * you may not use this file except in compliance with the License. | ||
9 | * You may obtain a copy of the License at | ||
10 | * | ||
11 | * http://www.apache.org/licenses/LICENSE-2.0 | ||
12 | * | ||
13 | * Unless required by applicable law or agreed to in writing, software | ||
14 | * distributed under the License is distributed on an "AS IS" BASIS, | ||
15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
16 | * See the License for the specific language governing permissions and | ||
17 | * limitations under the License. | ||
18 | * | ||
19 | */ | ||
20 | |||
21 | package channelz | ||
22 | |||
23 | import ( | ||
24 | "syscall" | ||
25 | |||
26 | "golang.org/x/sys/unix" | ||
27 | ) | ||
28 | |||
29 | // SocketOptionData defines the struct to hold socket option data, and related | ||
30 | // getter function to obtain info from fd. | ||
31 | type SocketOptionData struct { | ||
32 | Linger *unix.Linger | ||
33 | RecvTimeout *unix.Timeval | ||
34 | SendTimeout *unix.Timeval | ||
35 | TCPInfo *unix.TCPInfo | ||
36 | } | ||
37 | |||
38 | // Getsockopt defines the function to get socket options requested by channelz. | ||
39 | // It is to be passed to syscall.RawConn.Control(). | ||
40 | func (s *SocketOptionData) Getsockopt(fd uintptr) { | ||
41 | if v, err := unix.GetsockoptLinger(int(fd), syscall.SOL_SOCKET, syscall.SO_LINGER); err == nil { | ||
42 | s.Linger = v | ||
43 | } | ||
44 | if v, err := unix.GetsockoptTimeval(int(fd), syscall.SOL_SOCKET, syscall.SO_RCVTIMEO); err == nil { | ||
45 | s.RecvTimeout = v | ||
46 | } | ||
47 | if v, err := unix.GetsockoptTimeval(int(fd), syscall.SOL_SOCKET, syscall.SO_SNDTIMEO); err == nil { | ||
48 | s.SendTimeout = v | ||
49 | } | ||
50 | if v, err := unix.GetsockoptTCPInfo(int(fd), syscall.SOL_TCP, syscall.TCP_INFO); err == nil { | ||
51 | s.TCPInfo = v | ||
52 | } | ||
53 | } | ||