github/containerd
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 2 Wiki Activity

Replace lockfile with reference lock

Browse Source 
Updates content service to handle lock errors and return
them to the client. The client remote handler has been
updated to retry when a resource is locked until the
resource is unlocked or the expected resource exists.

Signed-off-by: Derek McGowan <derek@mcgstyle.net>
This commit is contained in:
Derek McGowan
2017-06-08 16:07:38 -07:00
parent a6314cad65
commit 1cdb010783
13 changed files with 69 additions and 394 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
content/content.go
View File

@@ -21,6 +21,12 @@ var (
// Use IsExists(err) to detect this condition.
ErrExists = errors.New("content: exists")
// ErrLocked is returned when content is actively being uploaded, this
// indicates that another process is attempting to upload the same content.
//
// Use IsLocked(err) to detect this condition.
ErrLocked = errors.New("content: locked")
bufPool = sync.Pool{
New: func() interface{} {
return make([]byte, 1<<20)
@@ -107,3 +113,7 @@ func IsNotFound(err error) bool {
func IsExists(err error) bool {
return errors.Cause(err) == ErrExists
}
func IsLocked(err error) bool {
return errors.Cause(err) == ErrLocked
}