gistfile1.txt

diff --git a/storage_drivers/solidfire_san.go b/storage_drivers/solidfire_san.go
index b8807fd..47a5d20 100644
--- a/storage_drivers/solidfire_san.go
+++ b/storage_drivers/solidfire_san.go
@@ -557,3 +557,34 @@ func (d *SolidfireSANStorageDriver) GetVolume(name string) (sfapi.Volume, error)
        }
        return vols[0], nil
 }
+
+// UpdateAttachmentCounter is used for ref counting attachments to a volume.  Valid options for action
+// are "increment", "decrement", "reset", all other arguments will simply return the current count
+func (d *SolidfireSANStorageDriver) UpdateAttachmentCounter(name , action string) int64 {
+       v, err := d.GetVolume(name)
+       attrs, _ := v.Attributes.(map[string]interface{})
+
+       // TODO(jdg): type-checking?
+       currentCount := attrs["attachmentCount"].(int64)
+       refresh = true
+       if action == "reset" {
+               currentCount = 0
+               log.Debugf("reseting current attachment count to 0: %v", currentCount)
+    } else if action == "increment" {
+               currentCount += 1
+               log.Debugf("incrementing current attachment count to: %v", currentCount)
+       } else if action == "decrement" {
+               currentCount -= 1
+               log.Debugf("decrementing current attachment count to: %v", currentCount)
+       } else {
+               refresh = false
+               log.Debugf("returning unmodified attachment count: %v", currentCount)
+       }
+
+       if refresh == true {
+               // refresh the attributes on the volume
+
+       }
+       return currentCount
+
+}