Commit graph

10 commits

Author SHA1 Message Date
Jason A. Donenfeld f9b48a961c device: zero out allowedip node pointers when removing
This should make it a bit easier for the garbage collector.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-06-04 16:33:28 +02:00
Jason A. Donenfeld 841756e328 device: simplify allowedips lookup signature
The inliner should handle this for us.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-06-03 16:29:43 +02:00
Jason A. Donenfeld c382222eab device: remove nodes by peer in O(1) instead of O(n)
Now that we have parent pointers hooked up, we can simply go right to
the node and remove it in place, rather than having to recursively walk
the entire trie.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-06-03 16:29:43 +02:00
Jason A. Donenfeld b41f4cc768 device: remove recursion from insertion and connect parent pointers
This makes the insertion algorithm a bit more efficient, while also now
taking on the additional task of connecting up parent pointers. This
will be handy in the following commit.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-06-03 15:08:42 +02:00
Jason A. Donenfeld 4a57024b94 device: reduce size of trie struct
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-06-03 13:51:03 +02:00
Jason A. Donenfeld 75e6d810ed device: use container/list instead of open coding it
This linked list implementation is awful, but maybe Go 2 will help
eventually, and at least we're not open coding the hlist any more.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-10 18:19:11 +01:00
Jason A. Donenfeld d4112d9096 global: bump copyright
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-28 17:52:15 +01:00
Jason A. Donenfeld 8cc99631d0 device: use linked list for per-peer allowed-ip traversal
This makes the IpcGet method much faster.

We also refactor the traversal API to use a callback so that we don't
need to allocate at all. Avoiding allocations we do self-masking on
insertion, which in turn means that split intermediate nodes require a
copy of the bits.

benchmark               old ns/op     new ns/op     delta
BenchmarkUAPIGet-16     3243          2659          -18.01%

benchmark               old allocs     new allocs     delta
BenchmarkUAPIGet-16     35             30             -14.29%

benchmark               old bytes     new bytes     delta
BenchmarkUAPIGet-16     1218          737           -39.49%

This benchmark is good, though it's only for a pair of peers, each with
only one allowedips. As this grows, the delta expands considerably.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-27 01:48:58 +01:00
Jason A. Donenfeld db0aa39b76 global: update header comments and modules
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-05-02 02:08:26 -06:00
Jason A. Donenfeld 69f0fe67b6 global: begin modularization 2019-03-03 05:00:40 +01:00
Renamed from allowedips.go (Browse further)