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| author | Matthias Schiffer <mschiffer@universe-factory.net> | 2013-05-20 10:41:20 +0200 |
|---|---|---|
| committer | Matthias Schiffer <mschiffer@universe-factory.net> | 2013-05-20 10:41:20 +0200 |
| commit | 46e337a1fd34a3c0555f286b6bc46b9ba058c17c (patch) | |
| tree | 01a31d9dcd9332cb99ddc6de826e73d82d6da366 | |
| parent | 3c8abc1921c51b654dace98002bdf7ed49f7489c (diff) | |
| download | fastd-46e337a1fd34a3c0555f286b6bc46b9ba058c17c.tar fastd-46e337a1fd34a3c0555f286b6bc46b9ba058c17c.zip | |
Optimize send_all() to allow zero-copy TUN mode
| -rw-r--r-- | src/fastd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/fastd.c b/src/fastd.c index bbf1e03..63c5750 100644 --- a/src/fastd.c +++ b/src/fastd.c @@ -611,6 +611,12 @@ static inline void send_all(fastd_context_t *ctx, fastd_peer_t *source_peer, fas if (dest_peer == source_peer || !fastd_peer_is_established(dest_peer)) continue; + /* optimization, primarily for TUN mode: don't duplicate the buffer for the last (or only) peer */ + if (!dest_peer->next) { + ctx->conf->protocol->send(ctx, dest_peer, buffer); + return; + } + ctx->conf->protocol->send(ctx, dest_peer, fastd_buffer_dup(ctx, buffer, methods_min_encrypt_head_space(ctx), methods_min_encrypt_tail_space(ctx))); } |