1// 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} 65