diff options
Diffstat (limited to 'vendor/github.com/pborman/uuid/node.go')
-rw-r--r-- | vendor/github.com/pborman/uuid/node.go | 77 |
1 files changed, 5 insertions, 72 deletions
diff --git a/vendor/github.com/pborman/uuid/node.go b/vendor/github.com/pborman/uuid/node.go index 42d60da8..e524e010 100644 --- a/vendor/github.com/pborman/uuid/node.go +++ b/vendor/github.com/pborman/uuid/node.go @@ -5,24 +5,14 @@ package uuid import ( - "net" - "sync" -) - -var ( - nodeMu sync.Mutex - interfaces []net.Interface // cached list of interfaces - ifname string // name of interface being used - nodeID []byte // hardware for version 1 UUIDs + guuid "github.com/google/uuid" ) // NodeInterface returns the name of the interface from which the NodeID was // derived. The interface "user" is returned if the NodeID was set by // SetNodeID. func NodeInterface() string { - defer nodeMu.Unlock() - nodeMu.Lock() - return ifname + return guuid.NodeInterface() } // SetNodeInterface selects the hardware address to be used for Version 1 UUIDs. @@ -32,77 +22,20 @@ func NodeInterface() string { // // SetNodeInterface never fails when name is "". func SetNodeInterface(name string) bool { - defer nodeMu.Unlock() - nodeMu.Lock() - return setNodeInterface(name) -} - -func setNodeInterface(name string) bool { - if interfaces == nil { - var err error - interfaces, err = net.Interfaces() - if err != nil && name != "" { - return false - } - } - - for _, ifs := range interfaces { - if len(ifs.HardwareAddr) >= 6 && (name == "" || name == ifs.Name) { - if setNodeID(ifs.HardwareAddr) { - ifname = ifs.Name - return true - } - } - } - - // We found no interfaces with a valid hardware address. If name - // does not specify a specific interface generate a random Node ID - // (section 4.1.6) - if name == "" { - if nodeID == nil { - nodeID = make([]byte, 6) - } - randomBits(nodeID) - return true - } - return false + return guuid.SetNodeInterface(name) } // NodeID returns a slice of a copy of the current Node ID, setting the Node ID // if not already set. func NodeID() []byte { - defer nodeMu.Unlock() - nodeMu.Lock() - if nodeID == nil { - setNodeInterface("") - } - nid := make([]byte, 6) - copy(nid, nodeID) - return nid + return guuid.NodeID() } // SetNodeID sets the Node ID to be used for Version 1 UUIDs. The first 6 bytes // of id are used. If id is less than 6 bytes then false is returned and the // Node ID is not set. func SetNodeID(id []byte) bool { - defer nodeMu.Unlock() - nodeMu.Lock() - if setNodeID(id) { - ifname = "user" - return true - } - return false -} - -func setNodeID(id []byte) bool { - if len(id) < 6 { - return false - } - if nodeID == nil { - nodeID = make([]byte, 6) - } - copy(nodeID, id) - return true + return guuid.SetNodeID(id) } // NodeID returns the 6 byte node id encoded in uuid. It returns nil if uuid is |