device: allow reducing queue constants on iOS

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 <[email protected]> Signed-off-by: Jason A. Donenfeld <[email protected]>
2021-05-22 01:00:51 +02:00
parent 99e8b4ba60
commit c27ff9b9f6
3 changed files with 12 additions and 11 deletions
@@ -7,13 +7,15 @@

 package device

-/* Fit within memory limits for iOS's Network Extension API, which has stricter requirements */
-
-const (
-	QueueStagedSize            = 128
-	QueueOutboundSize          = 1024
-	QueueInboundSize           = 1024
-	QueueHandshakeSize         = 1024
-	MaxSegmentSize             = 1700
-	PreallocatedBuffersPerPool = 1024
+// Fit within memory limits for iOS's Network Extension API, which has stricter requirements.
+// These are vars instead of consts, because heavier network extensions might want to reduce
+// them further.
+var (
+	QueueStagedSize                   = 128
+	QueueOutboundSize                 = 1024
+	QueueInboundSize                  = 1024
+	QueueHandshakeSize                = 1024
+	PreallocatedBuffersPerPool uint32 = 1024
 )
+
+const MaxSegmentSize = 1700