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vere: properly clean up dropped laneless packets

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Previously, if ames told us there was no lane for a target, we would
drop the packet, but fail to register this in the queue, or even reclaim
the memory it was using.

Now, we do all the required book-keeping when dropping packets in the
"no lane for this" case.
This commit is contained in:
Fang 2020-08-27 23:47:02 +02:00
parent 1e8158b683
commit d76a5e9077
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GPG Key ID: EB035760C1BBA972
1 changed files with 8 additions and 3 deletions
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11
pkg/urbit/vere/io/ames.c
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@ -655,20 +655,25 @@ _ames_lane_scry_cb(void* vod_p, u3_noun nun)
// if scry fails, remember we can't scry, and just inject the packet
//
if (u3_none == las) {
pac_u->sam_u->foq_d--;
u3l_log("ames: giving up scry\n");
pac_u->sam_u->see_o = c3n;
_ames_put_packet(pac_u->sam_u,
_ames_serialize_packet(pac_u, c3n),
pac_u->ore_u);
pac_u->sam_u->foq_d--;
_ames_panc_free(pac_u);
}
// if there is no lane, drop the packet
//
else if (u3_nul == las) {
pac_u->sam_u->foq_d--;
_ames_panc_free(pac_u);
}
// if there is a lane, forward the packet on it
//
else if (u3_nul != las) {
else {
_ames_forward(pac_u, u3k(las));
}
// if there is no lane, drop the packet
u3z(nun);
}