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khenaidoo26721882021-08-11 17:42:52 -04001// Copyright 2020 The Prometheus Authors
2// Licensed under the Apache License, Version 2.0 (the "License");
3// you may not use this file except in compliance with the License.
4// You may obtain a copy of the License at
5//
6// http://www.apache.org/licenses/LICENSE-2.0
7//
8// Unless required by applicable law or agreed to in writing, software
9// distributed under the License is distributed on an "AS IS" BASIS,
10// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11// See the License for the specific language governing permissions and
12// limitations under the License.
13
14package procfs
15
16type (
17 // NetTCP represents the contents of /proc/net/tcp{,6} file without the header.
18 NetTCP []*netIPSocketLine
19
20 // NetTCPSummary provides already computed values like the total queue lengths or
21 // the total number of used sockets. In contrast to NetTCP it does not collect
22 // the parsed lines into a slice.
23 NetTCPSummary NetIPSocketSummary
24)
25
26// NetTCP returns the IPv4 kernel/networking statistics for TCP datagrams
27// read from /proc/net/tcp.
28func (fs FS) NetTCP() (NetTCP, error) {
29 return newNetTCP(fs.proc.Path("net/tcp"))
30}
31
32// NetTCP6 returns the IPv6 kernel/networking statistics for TCP datagrams
33// read from /proc/net/tcp6.
34func (fs FS) NetTCP6() (NetTCP, error) {
35 return newNetTCP(fs.proc.Path("net/tcp6"))
36}
37
38// NetTCPSummary returns already computed statistics like the total queue lengths
39// for TCP datagrams read from /proc/net/tcp.
40func (fs FS) NetTCPSummary() (*NetTCPSummary, error) {
41 return newNetTCPSummary(fs.proc.Path("net/tcp"))
42}
43
44// NetTCP6Summary returns already computed statistics like the total queue lengths
45// for TCP datagrams read from /proc/net/tcp6.
46func (fs FS) NetTCP6Summary() (*NetTCPSummary, error) {
47 return newNetTCPSummary(fs.proc.Path("net/tcp6"))
48}
49
50// newNetTCP creates a new NetTCP{,6} from the contents of the given file.
51func newNetTCP(file string) (NetTCP, error) {
52 n, err := newNetIPSocket(file)
53 n1 := NetTCP(n)
54 return n1, err
55}
56
57func newNetTCPSummary(file string) (*NetTCPSummary, error) {
58 n, err := newNetIPSocketSummary(file)
59 if n == nil {
60 return nil, err
61 }
62 n1 := NetTCPSummary(*n)
63 return &n1, err
64}