diff options
Diffstat (limited to 'device/send.go')
| -rw-r--r-- | device/send.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/device/send.go b/device/send.go index fa4da0e..cb3e3f6 100644 --- a/device/send.go +++ b/device/send.go @@ -58,9 +58,19 @@ func (device *Device) NewOutboundElement() *QueueOutboundElement { elem.buffer = device.GetMessageBuffer() elem.Mutex = sync.Mutex{} elem.nonce = 0 + // keypair and peer were cleared (if necessary) by clearPointers. + return elem +} + +// clearPointers clears elem fields that contain pointers. +// This makes the garbage collector's life easier and +// avoids accidentally keeping other objects around unnecessarily. +// It also reduces the possible collateral damage from use-after-free bugs. +func (elem *QueueOutboundElement) clearPointers() { + elem.buffer = nil + elem.packet = nil elem.keypair = nil elem.peer = nil - return elem } func (elem *QueueOutboundElement) Drop() { |