diff options
Diffstat (limited to 'vendor/github.com/vbauerster/mpb/v7/progress.go')
-rw-r--r-- | vendor/github.com/vbauerster/mpb/v7/progress.go | 197 |
1 files changed, 83 insertions, 114 deletions
diff --git a/vendor/github.com/vbauerster/mpb/v7/progress.go b/vendor/github.com/vbauerster/mpb/v7/progress.go index 123af17cf..1d9a53e5c 100644 --- a/vendor/github.com/vbauerster/mpb/v7/progress.go +++ b/vendor/github.com/vbauerster/mpb/v7/progress.go @@ -16,12 +16,10 @@ import ( ) const ( - // default RefreshRate - prr = 150 * time.Millisecond + prr = 150 * time.Millisecond // default RefreshRate ) -// Progress represents a container that renders one or more progress -// bars. +// Progress represents a container that renders one or more progress bars. type Progress struct { ctx context.Context uwg *sync.WaitGroup @@ -33,14 +31,12 @@ type Progress struct { once sync.Once } -// pState holds bars in its priorityQueue. It gets passed to -// *Progress.serve(...) monitor goroutine. +// pState holds bars in its priorityQueue, it gets passed to (*Progress).serve monitor goroutine. type pState struct { - bHeap priorityQueue - heapUpdated bool - pMatrix map[int][]chan int - aMatrix map[int][]chan int - barShutdownQueue []*Bar + bHeap priorityQueue + heapUpdated bool + pMatrix map[int][]chan int + aMatrix map[int][]chan int // following are provided/overrided by user idCount int @@ -52,26 +48,26 @@ type pState struct { externalRefresh <-chan interface{} renderDelay <-chan struct{} shutdownNotifier chan struct{} - parkedBars map[*Bar]*Bar + queueBars map[*Bar]*Bar output io.Writer debugOut io.Writer } // New creates new Progress container instance. It's not possible to -// reuse instance after *Progress.Wait() method has been called. +// reuse instance after (*Progress).Wait method has been called. func New(options ...ContainerOption) *Progress { return NewWithContext(context.Background(), options...) } // NewWithContext creates new Progress container instance with provided -// context. It's not possible to reuse instance after *Progress.Wait() +// context. It's not possible to reuse instance after (*Progress).Wait // method has been called. func NewWithContext(ctx context.Context, options ...ContainerOption) *Progress { s := &pState{ - bHeap: priorityQueue{}, - rr: prr, - parkedBars: make(map[*Bar]*Bar), - output: os.Stdout, + bHeap: priorityQueue{}, + rr: prr, + queueBars: make(map[*Bar]*Bar), + output: os.Stdout, } for _, opt := range options { @@ -110,8 +106,8 @@ func (p *Progress) New(total int64, builder BarFillerBuilder, options ...BarOpti } // Add creates a bar which renders itself by provided filler. -// If `total <= 0` trigger complete event is disabled until reset with *bar.SetTotal(int64, bool). -// Panics if *Progress instance is done, i.e. called after *Progress.Wait(). +// If `total <= 0` triggering complete event by increment methods is disabled. +// Panics if *Progress instance is done, i.e. called after (*Progress).Wait(). func (p *Progress) Add(total int64, filler BarFiller, options ...BarOption) *Bar { if filler == nil { filler = NopStyle().Build() @@ -122,9 +118,8 @@ func (p *Progress) Add(total int64, filler BarFiller, options ...BarOption) *Bar case p.operateState <- func(ps *pState) { bs := ps.makeBarState(total, filler, options...) bar := newBar(p, bs) - if bs.runningBar != nil { - bs.runningBar.noPop = true - ps.parkedBars[bs.runningBar] = bar + if bs.afterBar != nil { + ps.queueBars[bs.afterBar] = bar } else { heap.Push(&ps.bHeap, bar) ps.heapUpdated = true @@ -133,7 +128,6 @@ func (p *Progress) Add(total int64, filler BarFiller, options ...BarOption) *Bar result <- bar }: bar := <-result - bar.subscribeDecorators() return bar case <-p.done: p.bwg.Done() @@ -141,21 +135,8 @@ func (p *Progress) Add(total int64, filler BarFiller, options ...BarOption) *Bar } } -func (p *Progress) dropBar(b *Bar) { - select { - case p.operateState <- func(s *pState) { - if b.index < 0 { - return - } - heap.Remove(&s.bHeap, b.index) - s.heapUpdated = true - }: - case <-p.done: - } -} - func (p *Progress) traverseBars(cb func(b *Bar) bool) { - done := make(chan struct{}) + sync := make(chan struct{}) select { case p.operateState <- func(s *pState) { for i := 0; i < s.bHeap.Len(); i++ { @@ -164,9 +145,9 @@ func (p *Progress) traverseBars(cb func(b *Bar) bool) { break } } - close(done) + close(sync) }: - <-done + <-sync case <-p.done: } } @@ -200,8 +181,8 @@ func (p *Progress) BarCount() int { // After this method has been called, there is no way to reuse *Progress // instance. func (p *Progress) Wait() { + // wait for user wg, if any if p.uwg != nil { - // wait for user wg p.uwg.Wait() } @@ -256,6 +237,64 @@ func (p *Progress) serve(s *pState, cw *cwriter.Writer) { } } +func (s *pState) render(cw *cwriter.Writer) error { + if s.heapUpdated { + s.updateSyncMatrix() + s.heapUpdated = false + } + syncWidth(s.pMatrix) + syncWidth(s.aMatrix) + + tw, err := cw.GetWidth() + if err != nil { + tw = s.reqWidth + } + for i := 0; i < s.bHeap.Len(); i++ { + bar := s.bHeap[i] + go bar.render(tw) + } + + return s.flush(cw) +} + +func (s *pState) flush(cw *cwriter.Writer) error { + var lines int + pool := make([]*Bar, 0, s.bHeap.Len()) + for s.bHeap.Len() > 0 { + b := heap.Pop(&s.bHeap).(*Bar) + frame := <-b.frameCh + lines += frame.lines + _, err := cw.ReadFrom(frame.reader) + if err != nil { + return err + } + if frame.shutdown { + b.Wait() // waiting for b.done, so it's safe to read b.bs + var toDrop bool + if qb, ok := s.queueBars[b]; ok { + delete(s.queueBars, b) + qb.priority = b.priority + pool = append(pool, qb) + toDrop = true + } else if s.popCompleted && !b.bs.noPop { + lines -= frame.lines + toDrop = true + } + if toDrop || b.bs.dropOnComplete { + s.heapUpdated = true + continue + } + } + pool = append(pool, b) + } + + for _, b := range pool { + heap.Push(&s.bHeap, b) + } + + return cw.Flush(lines) +} + func (s *pState) newTicker(done <-chan struct{}) chan time.Time { ch := make(chan time.Time) if s.shutdownNotifier == nil { @@ -294,78 +333,6 @@ func (s *pState) newTicker(done <-chan struct{}) chan time.Time { return ch } -func (s *pState) render(cw *cwriter.Writer) error { - if s.heapUpdated { - s.updateSyncMatrix() - s.heapUpdated = false - } - syncWidth(s.pMatrix) - syncWidth(s.aMatrix) - - tw, err := cw.GetWidth() - if err != nil { - tw = s.reqWidth - } - for i := 0; i < s.bHeap.Len(); i++ { - bar := s.bHeap[i] - go bar.render(tw) - } - - return s.flush(cw) -} - -func (s *pState) flush(cw *cwriter.Writer) error { - var totalLines int - bm := make(map[*Bar]int, s.bHeap.Len()) - for s.bHeap.Len() > 0 { - b := heap.Pop(&s.bHeap).(*Bar) - frame := <-b.frameCh - _, err := cw.ReadFrom(frame.reader) - if err != nil { - return err - } - if b.toShutdown { - if b.recoveredPanic != nil { - s.barShutdownQueue = append(s.barShutdownQueue, b) - b.toShutdown = false - } else { - // shutdown at next flush - // this ensures no bar ends up with less than 100% rendered - defer func() { - s.barShutdownQueue = append(s.barShutdownQueue, b) - }() - } - } - bm[b] = frame.lines - totalLines += frame.lines - } - - for _, b := range s.barShutdownQueue { - if parkedBar := s.parkedBars[b]; parkedBar != nil { - parkedBar.priority = b.priority - heap.Push(&s.bHeap, parkedBar) - delete(s.parkedBars, b) - b.toDrop = true - } - if s.popCompleted && !b.noPop { - totalLines -= bm[b] - b.toDrop = true - } - if b.toDrop { - delete(bm, b) - s.heapUpdated = true - } - b.cancel() - } - s.barShutdownQueue = s.barShutdownQueue[0:0] - - for b := range bm { - heap.Push(&s.bHeap, b) - } - - return cw.Flush(totalLines) -} - func (s *pState) updateSyncMatrix() { s.pMatrix = make(map[int][]chan int) s.aMatrix = make(map[int][]chan int) @@ -418,6 +385,8 @@ func (s *pState) makeBarState(total int64, filler BarFiller, options ...BarOptio bs.buffers[i] = bytes.NewBuffer(make([]byte, 0, 512)) } + bs.subscribeDecorators() + return bs } @@ -427,7 +396,7 @@ func syncWidth(matrix map[int][]chan int) { } } -var maxWidthDistributor = func(column []chan int) { +func maxWidthDistributor(column []chan int) { var maxWidth int for _, ch := range column { if w := <-ch; w > maxWidth { |