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volumes: add synchronization to Count and List 

Signed-off-by: Alexander Morozov <lk4d4@docker.com>
This commit is contained in:
Alexander Morozov 2015-09-15 10:38:53 -07:00
parent 59311faaed
commit 2d21996eec
1 changed files with 4 additions and 0 deletions
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4
daemon/volumes.go
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@ -227,6 +227,8 @@ func (s *volumeStore) Decrement(v volume.Volume) {
// Count returns the usage count of the passed in volume
func (s *volumeStore) Count(v volume.Volume) int {
s.mu.Lock()
defer s.mu.Unlock()
vc, exists := s.vols[v.Name()]
if !exists {
return 0
@ -236,6 +238,8 @@ func (s *volumeStore) Count(v volume.Volume) int {
// List returns all the available volumes
func (s *volumeStore) List() []volume.Volume {
s.mu.Lock()
defer s.mu.Unlock()
var ls []volume.Volume
for _, vc := range s.vols {
ls = append(ls, vc.Volume)