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authorValentin Rothberg <rothberg@redhat.com>2019-02-21 11:54:04 +0100
committerValentin Rothberg <rothberg@redhat.com>2019-02-21 11:54:04 +0100
commitc069d117594d72159157aa48d0693d8571be45c5 (patch)
tree19b8af7cb8eb967154f162bde56bb6b599aad4cf /vendor/gopkg.in/cheggaaa/pb.v1/pool.go
parent4934bf23272f185fa9f08d0ba890c5a0eb4ed14d (diff)
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vendor containers/image v1.4
This requires some additional changes to the dependencies since the progress-bar library has been changed to github.com/vbauerster/mpb. Please refer to the following link for the release notes: https://github.com/containers/image/releases/tag/v1.4 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'vendor/gopkg.in/cheggaaa/pb.v1/pool.go')
-rw-r--r--vendor/gopkg.in/cheggaaa/pb.v1/pool.go104
1 files changed, 0 insertions, 104 deletions
diff --git a/vendor/gopkg.in/cheggaaa/pb.v1/pool.go b/vendor/gopkg.in/cheggaaa/pb.v1/pool.go
deleted file mode 100644
index 392e7599c..000000000
--- a/vendor/gopkg.in/cheggaaa/pb.v1/pool.go
+++ /dev/null
@@ -1,104 +0,0 @@
-// +build linux darwin freebsd netbsd openbsd solaris dragonfly windows
-
-package pb
-
-import (
- "io"
- "sync"
- "time"
-)
-
-// Create and start new pool with given bars
-// You need call pool.Stop() after work
-func StartPool(pbs ...*ProgressBar) (pool *Pool, err error) {
- pool = new(Pool)
- if err = pool.Start(); err != nil {
- return
- }
- pool.Add(pbs...)
- return
-}
-
-// NewPool initialises a pool with progress bars, but
-// doesn't start it. You need to call Start manually
-func NewPool(pbs ...*ProgressBar) (pool *Pool) {
- pool = new(Pool)
- pool.Add(pbs...)
- return
-}
-
-type Pool struct {
- Output io.Writer
- RefreshRate time.Duration
- bars []*ProgressBar
- lastBarsCount int
- shutdownCh chan struct{}
- workerCh chan struct{}
- m sync.Mutex
- finishOnce sync.Once
-}
-
-// Add progress bars.
-func (p *Pool) Add(pbs ...*ProgressBar) {
- p.m.Lock()
- defer p.m.Unlock()
- for _, bar := range pbs {
- bar.ManualUpdate = true
- bar.NotPrint = true
- bar.Start()
- p.bars = append(p.bars, bar)
- }
-}
-
-func (p *Pool) Start() (err error) {
- p.RefreshRate = DefaultRefreshRate
- p.shutdownCh, err = lockEcho()
- if err != nil {
- return
- }
- p.workerCh = make(chan struct{})
- go p.writer()
- return
-}
-
-func (p *Pool) writer() {
- var first = true
- defer func() {
- if first == false {
- p.print(false)
- } else {
- p.print(true)
- p.print(false)
- }
- close(p.workerCh)
- }()
-
- for {
- select {
- case <-time.After(p.RefreshRate):
- if p.print(first) {
- p.print(false)
- return
- }
- first = false
- case <-p.shutdownCh:
- return
- }
- }
-}
-
-// Restore terminal state and close pool
-func (p *Pool) Stop() error {
- p.finishOnce.Do(func() {
- if p.shutdownCh != nil {
- close(p.shutdownCh)
- }
- })
-
- // Wait for the worker to complete
- select {
- case <-p.workerCh:
- }
-
- return unlockEcho()
-}