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Update error log for wrong node id.

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When custom NodeBits was set, the node number may bigger than 1023.
This commit is contained in:
龚尚
2018-04-07 14:46:40 +08:00
committed by GitHub
parent f613937295
commit 4ca43961f4
1 changed files with 4 additions and 4 deletions
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8
snowflake.go
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@@ -89,16 +89,16 @@ type ID int64
// IDs // IDs
func NewNode(node int64) (*Node, error) { func NewNode(node int64) (*Node, error) {
if node < 0 || node > nodeMax {
return nil, errors.New("Node number must be between 0 and 1023")
}
// re-calc in case custom NodeBits or StepBits were set // re-calc in case custom NodeBits or StepBits were set
nodeMax = -1 ^ (-1 << NodeBits) nodeMax = -1 ^ (-1 << NodeBits)
nodeMask = nodeMax << StepBits nodeMask = nodeMax << StepBits
stepMask = -1 ^ (-1 << StepBits) stepMask = -1 ^ (-1 << StepBits)
timeShift = NodeBits + StepBits timeShift = NodeBits + StepBits
nodeShift = StepBits nodeShift = StepBits
if node < 0 || node > nodeMax {
return nil, errors.New("Node number must be between 0 and " + strconv.Itoa(nodeMax))
}
return &Node{ return &Node{
time: 0, time: 0,