source: code/trunk/vendor/github.com/prometheus/procfs/net_udp.go@ 822

// Copyright 2020 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package procfs

type (
        // NetUDP represents the contents of /proc/net/udp{,6} file without the header.
        NetUDP []*netIPSocketLine

        // NetUDPSummary provides already computed values like the total queue lengths or
        // the total number of used sockets. In contrast to NetUDP it does not collect
        // the parsed lines into a slice.
        NetUDPSummary NetIPSocketSummary
)

// NetUDP returns the IPv4 kernel/networking statistics for UDP datagrams
// read from /proc/net/udp.
func (fs FS) NetUDP() (NetUDP, error) {
        return newNetUDP(fs.proc.Path("net/udp"))
}

// NetUDP6 returns the IPv6 kernel/networking statistics for UDP datagrams
// read from /proc/net/udp6.
func (fs FS) NetUDP6() (NetUDP, error) {
        return newNetUDP(fs.proc.Path("net/udp6"))
}

// NetUDPSummary returns already computed statistics like the total queue lengths
// for UDP datagrams read from /proc/net/udp.
func (fs FS) NetUDPSummary() (*NetUDPSummary, error) {
        return newNetUDPSummary(fs.proc.Path("net/udp"))
}

// NetUDP6Summary returns already computed statistics like the total queue lengths
// for UDP datagrams read from /proc/net/udp6.
func (fs FS) NetUDP6Summary() (*NetUDPSummary, error) {
        return newNetUDPSummary(fs.proc.Path("net/udp6"))
}

// newNetUDP creates a new NetUDP{,6} from the contents of the given file.
func newNetUDP(file string) (NetUDP, error) {
        n, err := newNetIPSocket(file)
        n1 := NetUDP(n)
        return n1, err
}

func newNetUDPSummary(file string) (*NetUDPSummary, error) {
        n, err := newNetIPSocketSummary(file)
        if n == nil {
                return nil, err
        }
        n1 := NetUDPSummary(*n)
        return &n1, err
}