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distribution/xfer: un-export DoFunc type

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It's only used internally and by non-exported functions, so it doesn't
have to be exported.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2022-02-18 16:54:12 +01:00
parent 4d6c6a5000
commit 79ea1b16b1
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GPG key ID: 76698F39D527CE8C
4 changed files with 13 additions and 13 deletions
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6
distribution/xfer/download.go
View file

@ -166,7 +166,7 @@ func (ldm *LayerDownloadManager) Download(ctx context.Context, initialRootFS ima
// Layer is not known to exist - download and register it.
progress.Update(progressOutput, descriptor.ID(), "Pulling fs layer")
var xferFunc DoFunc
var xferFunc doFunc
if topDownload != nil {
xferFunc = ldm.makeDownloadFunc(descriptor, "", topDownload)
defer topDownload.transfer.release(watcher)
@ -228,7 +228,7 @@ func (ldm *LayerDownloadManager) Download(ctx context.Context, initialRootFS ima
// complete before the registration step, and registers the downloaded data
// on top of parentDownload's resulting layer. Otherwise, it registers the
// layer on top of the ChainID given by parentLayer.
func (ldm *LayerDownloadManager) makeDownloadFunc(descriptor DownloadDescriptor, parentLayer layer.ChainID, parentDownload *downloadTransfer) DoFunc {
func (ldm *LayerDownloadManager) makeDownloadFunc(descriptor DownloadDescriptor, parentLayer layer.ChainID, parentDownload *downloadTransfer) doFunc {
return func(progressChan chan<- progress.Progress, start <-chan struct{}, inactive chan<- struct{}) transfer {
d := &downloadTransfer{
transfer: newTransfer(),
@ -392,7 +392,7 @@ func (ldm *LayerDownloadManager) makeDownloadFunc(descriptor DownloadDescriptor,
// parentDownload. This function does not log progress output because it would
// interfere with the progress reporting for sourceDownload, which has the same
// Key.
func (ldm *LayerDownloadManager) makeDownloadFuncFromDownload(descriptor DownloadDescriptor, sourceDownload *downloadTransfer, parentDownload *downloadTransfer) DoFunc {
func (ldm *LayerDownloadManager) makeDownloadFuncFromDownload(descriptor DownloadDescriptor, sourceDownload *downloadTransfer, parentDownload *downloadTransfer) doFunc {
return func(progressChan chan<- progress.Progress, start <-chan struct{}, inactive chan<- struct{}) transfer {
d := &downloadTransfer{
transfer: newTransfer(),

6
distribution/xfer/transfer.go
View file

@ -263,13 +263,13 @@ func (t *xfer) close() {
t.mu.Unlock()
}
// DoFunc is a function called by the transferManager to actually perform
// doFunc is a function called by the transferManager to actually perform
// a transfer. It should be non-blocking. It should wait until the start channel
// is closed before transferring any data. If the function closes inactive, that
// signals to the transferManager that the job is no longer actively moving
// data - for example, it may be waiting for a dependent transfer to finish.
// This prevents it from taking up a slot.
type DoFunc func(progressChan chan<- progress.Progress, start <-chan struct{}, inactive chan<- struct{}) transfer
type doFunc func(progressChan chan<- progress.Progress, start <-chan struct{}, inactive chan<- struct{}) transfer
// transferManager is used by LayerDownloadManager and LayerUploadManager to
// schedule and deduplicate transfers. It is up to the transferManager
@ -301,7 +301,7 @@ func (tm *transferManager) setConcurrency(concurrency int) {
// transfer checks if a transfer matching the given key is in progress. If not,
// it starts one by calling xferFunc. The caller supplies a channel which
// receives progress output from the transfer.
func (tm *transferManager) transfer(key string, xferFunc DoFunc, progressOutput progress.Output) (transfer, *watcher) {
func (tm *transferManager) transfer(key string, xferFunc doFunc, progressOutput progress.Output) (transfer, *watcher) {
tm.mu.Lock()
defer tm.mu.Unlock()

12
distribution/xfer/transfer_test.go
View file

@ -9,7 +9,7 @@ import (
)
func TestTransfer(t *testing.T) {
makeXferFunc := func(id string) DoFunc {
makeXferFunc := func(id string) doFunc {
return func(progressChan chan<- progress.Progress, start <-chan struct{}, _ chan<- struct{}) transfer {
select {
case <-start:
@ -71,7 +71,7 @@ func TestConcurrencyLimit(t *testing.T) {
const concurrencyLimit = 3
var runningJobs int32
makeXferFunc := func(id string) DoFunc {
makeXferFunc := func(id string) doFunc {
return func(progressChan chan<- progress.Progress, start <-chan struct{}, _ chan<- struct{}) transfer {
xfer := newTransfer()
go func() {
@ -130,7 +130,7 @@ func TestInactiveJobs(t *testing.T) {
var runningJobs int32
testDone := make(chan struct{})
makeXferFunc := func(id string) DoFunc {
makeXferFunc := func(id string) doFunc {
return func(progressChan chan<- progress.Progress, start <-chan struct{}, inactive chan<- struct{}) transfer {
xfer := newTransfer()
go func() {
@ -190,7 +190,7 @@ func TestInactiveJobs(t *testing.T) {
func TestWatchRelease(t *testing.T) {
ready := make(chan struct{})
makeXferFunc := func(id string) DoFunc {
makeXferFunc := func(id string) doFunc {
return func(progressChan chan<- progress.Progress, start <-chan struct{}, _ chan<- struct{}) transfer {
xfer := newTransfer()
go func() {
@ -279,7 +279,7 @@ func TestWatchRelease(t *testing.T) {
}
func TestWatchFinishedTransfer(t *testing.T) {
makeXferFunc := func(id string) DoFunc {
makeXferFunc := func(id string) doFunc {
return func(progressChan chan<- progress.Progress, _ <-chan struct{}, _ chan<- struct{}) transfer {
xfer := newTransfer()
go func() {
@ -321,7 +321,7 @@ func TestDuplicateTransfer(t *testing.T) {
var xferFuncCalls int32
makeXferFunc := func(id string) DoFunc {
makeXferFunc := func(id string) doFunc {
return func(progressChan chan<- progress.Progress, _ <-chan struct{}, _ chan<- struct{}) transfer {
atomic.AddInt32(&xferFuncCalls, 1)
xfer := newTransfer()

2
distribution/xfer/upload.go
View file

@ -102,7 +102,7 @@ func (lum *LayerUploadManager) Upload(ctx context.Context, layers []UploadDescri
return nil
}
func (lum *LayerUploadManager) makeUploadFunc(descriptor UploadDescriptor) DoFunc {
func (lum *LayerUploadManager) makeUploadFunc(descriptor UploadDescriptor) doFunc {
return func(progressChan chan<- progress.Progress, start <-chan struct{}, inactive chan<- struct{}) transfer {
u := &uploadTransfer{
transfer: newTransfer(),