86 lines
1.6 KiB
Go
86 lines
1.6 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package model
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import "sync"
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type jobQueue struct {
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progress []string
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queued []string
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mut sync.Mutex
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}
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func newJobQueue() *jobQueue {
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return &jobQueue{}
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}
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func (q *jobQueue) Push(file string) {
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q.mut.Lock()
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q.queued = append(q.queued, file)
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q.mut.Unlock()
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}
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func (q *jobQueue) Pop() (string, bool) {
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q.mut.Lock()
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defer q.mut.Unlock()
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if len(q.queued) == 0 {
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return "", false
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}
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var f string
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f = q.queued[0]
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q.queued = q.queued[1:]
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q.progress = append(q.progress, f)
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return f, true
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}
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func (q *jobQueue) BringToFront(filename string) {
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q.mut.Lock()
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defer q.mut.Unlock()
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for i, cur := range q.queued {
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if cur == filename {
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if i > 0 {
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// Shift the elements before the selected element one step to
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// the right, overwriting the selected element
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copy(q.queued[1:i+1], q.queued[0:])
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// Put the selected element at the front
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q.queued[0] = cur
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}
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return
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}
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}
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}
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func (q *jobQueue) Done(file string) {
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q.mut.Lock()
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defer q.mut.Unlock()
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for i := range q.progress {
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if q.progress[i] == file {
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copy(q.progress[i:], q.progress[i+1:])
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q.progress = q.progress[:len(q.progress)-1]
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return
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}
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}
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}
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func (q *jobQueue) Jobs() ([]string, []string) {
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q.mut.Lock()
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defer q.mut.Unlock()
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progress := make([]string, len(q.progress))
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copy(progress, q.progress)
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queued := make([]string, len(q.queued))
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copy(queued, q.queued)
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return progress, queued
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}
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