mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-03-09 08:59:30 +00:00
f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
// Copyright 2022 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package procfs
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import (
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"bufio"
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"bytes"
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"errors"
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"fmt"
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"io"
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"strconv"
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"strings"
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"github.com/prometheus/procfs/internal/util"
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)
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// Interrupt represents a single interrupt line.
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type Interrupt struct {
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// Info is the type of interrupt.
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Info string
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// Devices is the name of the device that is located at that IRQ
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Devices string
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// Values is the number of interrupts per CPU.
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Values []string
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}
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// Interrupts models the content of /proc/interrupts. Key is the IRQ number.
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// - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/s2-proc-interrupts
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// - https://raspberrypi.stackexchange.com/questions/105802/explanation-of-proc-interrupts-output
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type Interrupts map[string]Interrupt
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// Interrupts creates a new instance from a given Proc instance.
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func (p Proc) Interrupts() (Interrupts, error) {
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data, err := util.ReadFileNoStat(p.path("interrupts"))
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if err != nil {
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return nil, err
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}
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return parseInterrupts(bytes.NewReader(data))
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}
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func parseInterrupts(r io.Reader) (Interrupts, error) {
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var (
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interrupts = Interrupts{}
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scanner = bufio.NewScanner(r)
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)
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if !scanner.Scan() {
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return nil, errors.New("interrupts empty")
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}
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cpuNum := len(strings.Fields(scanner.Text())) // one header per cpu
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for scanner.Scan() {
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parts := strings.Fields(scanner.Text())
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if len(parts) == 0 { // skip empty lines
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continue
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}
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if len(parts) < 2 {
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return nil, fmt.Errorf("%w: Not enough fields in interrupts (expected 2+ fields but got %d): %s", ErrFileParse, len(parts), parts)
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}
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intName := parts[0][:len(parts[0])-1] // remove trailing :
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if len(parts) == 2 {
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interrupts[intName] = Interrupt{
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Info: "",
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Devices: "",
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Values: []string{
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parts[1],
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},
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}
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continue
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}
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intr := Interrupt{
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Values: parts[1 : cpuNum+1],
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}
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if _, err := strconv.Atoi(intName); err == nil { // numeral interrupt
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intr.Info = parts[cpuNum+1]
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intr.Devices = strings.Join(parts[cpuNum+2:], " ")
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} else {
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intr.Info = strings.Join(parts[cpuNum+1:], " ")
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}
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interrupts[intName] = intr
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}
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return interrupts, scanner.Err()
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}
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