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Drop 1 packet instead of a whole queue when overflowing

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This commit is contained in:
Arceliar 2018-07-06 00:55:00 -05:00
parent e6a47f705d
commit ad5dc9ea87
1 changed files with 12 additions and 11 deletions
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23
src/yggdrasil/switch.go
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@ -605,21 +605,16 @@ type switch_buffers struct {
}
func (b *switch_buffers) cleanup(t *switchTable) {
remove := func(streamID string) {
// Helper function to drop a queue
buf := b.bufs[streamID]
for _, packet := range buf.packets {
util_putBytes(packet.bytes)
}
b.size -= buf.size
delete(b.bufs, streamID)
}
for streamID, buf := range b.bufs {
// Remove queues for which we have no next hop
packet := buf.packets[0]
coords := switch_getPacketCoords(packet.bytes)
if t.selfIsClosest(coords) {
remove(streamID)
for _, packet := range buf.packets {
util_putBytes(packet.bytes)
}
b.size -= buf.size
delete(b.bufs, streamID)
}
}
const maxSize = 4 * 1048576 // Maximum 4 MB
@ -632,7 +627,13 @@ func (b *switch_buffers) cleanup(t *switchTable) {
if size < target {
continue
}
remove(streamID)
var packet switch_packetInfo
packet, buf.packets = buf.packets[0], buf.packets[1:]
buf.size -= uint64(len(packet.bytes))
b.size -= uint64(len(packet.bytes))
if len(buf.packets) == 0 {
delete(b.bufs, streamID)
}
break
}
}