mirrors/uquic
1
0
Fork 0
mirror of https://github.com/refraction-networking/uquic.git synced 2025-04-05 21:27:35 +03:00
Code Issues Projects Releases Packages Wiki Activity

fix race condition in GetStream in outgoing streams map

Browse source
This commit is contained in:
Marten Seemann 2018-02-22 09:21:59 +08:00
parent 77a4bf17ca
commit 4fa68b0788
6 changed files with 15 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

3
streams_map_incoming_generic.go
View file

@ -83,6 +83,9 @@ func (m *incomingItemsMap) GetOrOpenStream(id protocol.StreamID) (item, error) {
m.mutex.RUnlock()
m.mutex.Lock()
// no need to check the two error conditions from above again
// * maxStream can only increase, so if the id was valid before, it definitely is valid now
// * highestStream is only modified by this function
var start protocol.StreamID
if m.highestStream == 0 {
start = m.nextStream