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device: allow reducing queue constants on iOS

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Heavier network extensions might require the wireguard-go component to
use less ram, so let users of this reduce these as needed.

At some point we'll put this behind a configuration method of sorts, but
for now, just expose the consts as vars.

Requested-by: Josh Bleecher Snyder <josh@tailscale.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld
2021-05-22 00:57:42 +02:00
parent 99e8b4ba60
commit c27ff9b9f6
3 changed files with 12 additions and 11 deletions
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2
device/device.go
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@@ -210,7 +210,7 @@ func (device *Device) Down() error {
func (device *Device) IsUnderLoad() bool {
// check if currently under load
now := time.Now()
underLoad := len(device.queue.handshake.c) >= UnderLoadQueueSize
underLoad := len(device.queue.handshake.c) >= QueueHandshakeSize/8
if underLoad {
atomic.StoreInt64(&device.rate.underLoadUntil, now.Add(UnderLoadAfterTime).UnixNano())
return true