You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: softirqs.go
    path of file: ./repos/hubble-ui/backend/vendor/github.com/prometheus/procfs
    
    the code of the file until where you have to start completion: // Copyright 2022 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

import (
	"bufio"
	"bytes"
	"fmt"
	"io"
	"strconv"
	"strings"

	"github.com/prometheus/procfs/internal/util"
)

// Softirqs represents the softirq statistics.
type Softirqs struct {
	Hi      []uint64
	Timer   []uint64
	NetTx   []uint64
	NetRx   []uint64
	Block   []uint64
	IRQPoll []uint64
	Tasklet []uint64
	Sched   []uint64
	HRTimer []uint64
	RCU     []uint64
}

func (fs FS) Softirqs() (Softirqs, error) {
	fileName := fs.proc.Path("softirqs")
	data, err := util.ReadFileNoStat(fileName)
	if err != nil {
		return Softirqs{}, err
	}

	reader := bytes.NewReader(data)

	return parseSoftirqs(reader)
}

func parseSoftirqs(r io.Reader) (Softirqs, error) {
	var (
		softirqs = Softirqs{}
		scanner  = bufio.NewScanner(r)
	)

	if !scanner.Scan() {
		return Softirqs{}, fmt.Errorf("%w: softirqs empty", ErrFileRead)
	}

	for scanner.Scan() {
		parts := strings.Fields(scanner.Text())
		var err error

		// require at least one cpu
		if len(parts) < 2 {
			continue
		}
		switch {
		case parts[0] == "HI:":
			perCPU := parts[1:]
			softirqs.Hi = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Hi[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (HI%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "TIMER:":
			perCPU := parts[1:]
			softirqs.Timer = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Timer[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (TIMER%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "NET_TX:":
			perCPU := parts[1:]
			softirqs.NetTx = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.NetTx[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (NET_TX%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "NET_RX:":
			perCPU := parts[1:]
			softirqs.NetRx = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.NetRx[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (NET_RX%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "BLOCK:":
			perCPU := parts[1:]
			softirqs.Block = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Block[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (BLOCK%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "IRQ_POLL:":
			perCPU := parts[1:]
			softirqs.IRQPoll = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.IRQPoll[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (IRQ_POLL%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "TASKLET:":
			perCPU := parts[1:]
			softirqs.Tasklet = make([]uint64, len(perCPU))
			for 
    
func parseSoftirqs(r io.Reader) (Softirqs, error) {
	var (
		softirqs = Softirqs{}
		scanner  = bufio.NewScanner(r)
	)

	if !scanner.Scan() {
		return Softirqs{}, fmt.Errorf("%w: softirqs empty", ErrFileRead)
	}

	for scanner.Scan() {
		parts := strings.Fields(scanner.Text())
		var err error

		// require at least one cpu
		if len(parts) < 2 {
			continue
		}
		switch {
		case parts[0] == "HI:":
			perCPU := parts[1:]
			softirqs.Hi = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Hi[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (HI%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "TIMER:":
			perCPU := parts[1:]
			softirqs.Timer = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Timer[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (TIMER%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "NET_TX:":
			perCPU := parts[1:]
			softirqs.NetTx = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.NetTx[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (NET_TX%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "NET_RX:":
			perCPU := parts[1:]
			softirqs.NetRx = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.NetRx[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (NET_RX%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "BLOCK:":
			perCPU := parts[1:]
			softirqs.Block = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Block[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (BLOCK%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "IRQ_POLL:":
			perCPU := parts[1:]
			softirqs.IRQPoll = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.IRQPoll[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (IRQ_POLL%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "TASKLET:":
			perCPU := parts[1:]
			softirqs.Tasklet = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Tasklet[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (TASKLET%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "SCHED:":
			perCPU := parts[1:]
			softirqs.Sched = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.Sched[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (SCHED%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "HRTIMER:":
			perCPU := parts[1:]
			softirqs.HRTimer = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.HRTimer[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (HRTIMER%d): %w", ErrFileParse, count, i, err)
				}
			}
		case parts[0] == "RCU:":
			perCPU := parts[1:]
			softirqs.RCU = make([]uint64, len(perCPU))
			for i, count := range perCPU {
				if softirqs.RCU[i], err = strconv.ParseUint(count, 10, 64); err != nil {
					return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (RCU%d): %w", ErrFileParse, count, i, err)
				}
			}
		}
	}

	if err := scanner.Err(); err != nil {
		return Softirqs{}, fmt.Errorf("%s: couldn't parse softirqs: %w", ErrFileParse, err)
	}

	return softirqs, scanner.Err()
}