Commit Graph

9 Commits

Author SHA1 Message Date
Rusty Russell
577161a4fa renepay: remove custom debug, in favor of normal operations.
As a bonus, unit tests no longer leave files in /tmp.

Reported-by: https://github.com/whitslack
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-09-25 13:59:13 +09:30
Rusty Russell
a984202576 plugins/renepay: don't drop min to 0 if it's shown wrong, but drop 50%.
Eduardo is on holiday right now, but he pinged me asking for this.  It
makes some sense, and using half the *failed value* covers the case where
it's less than half what we expected.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-08-23 10:47:28 +09:30
Rusty Russell
00e9af57f5 plugins/renepay: neaten the command notifications.
It now looks like (for test_hardmpp):

```
# we have computed a set of 1 flows with probability 0.328, fees 0msat and delay 23
#   Flow 1: amount=1800000000msat prob=0.328 fees=0msat delay=12 path=-103x2x0/1(min=max=4294967295msat)->-103x5x0/0->-103x3x0/1->
#   Flow 1: Failed at node #1 (WIRE_TEMPORARY_CHANNEL_FAILURE): failed: WIRE_TEMPORARY_CHANNEL_FAILURE (reply from remote)
#   Flow 1: Failure of 1800000000msat for 103x5x0/0 capacity [0msat,3000000000msat] -> [0msat,1799999999msat]
# we have computed a set of 2 flows with probability 0.115, fees 0msat and delay 23
#   Flow 2: amount=500000000msat prob=0.475 fees=0msat delay=12 path=-103x6x0/0(min=max=4294967295msat)->-103x1x0/1->-103x4x0/1->
#   Flow 3: amount=1300000000msat prob=0.242 fees=0msat delay=12 path=-103x2x0/1(min=max=4294967295msat)->-103x5x0/0(max=1799999999msat)->-103x3x0/1->
#   Flow 3: Failed at node #1 (WIRE_TEMPORARY_CHANNEL_FAILURE): failed: WIRE_TEMPORARY_CHANNEL_FAILURE (reply from remote)
#   Flow 3: Failure of 1300000000msat for 103x5x0/0 capacity [0msat,1799999999msat] -> [0msat,1299999999msat]
# we have computed a set of 2 flows with probability 0.084, fees 0msat and delay 23
#   Flow 4: amount=260000000msat prob=0.467 fees=0msat delay=12 path=-103x6x0/0(500000000msat in 1 htlcs,min=max=4294967295msat)->-103x1x0/1(500000000msat in 1 htlcs)->-103x4x0/1(500000000msat in 1 htlcs)->
#   Flow 5: amount=1040000000msat prob=0.179 fees=0msat delay=12 path=-103x2x0/1(min=max=4294967295msat)->-103x5x0/0(max=1299999999msat)->-103x3x0/1->
#   Flow 5: Failed at node #1 (WIRE_TEMPORARY_CHANNEL_FAILURE): failed: WIRE_TEMPORARY_CHANNEL_FAILURE (reply from remote)
#   Flow 5: Failure of 1040000000msat for 103x5x0/0 capacity [0msat,1299999999msat] -> [0msat,1039999999msat]
# we have computed a set of 2 flows with probability 0.052, fees 0msat and delay 23
#   Flow 6: amount=120000000msat prob=0.494 fees=0msat delay=12 path=-103x6x0/0(760000000msat in 2 htlcs,min=max=4294967295msat)->-103x1x0/1(760000000msat in 2 htlcs)->-103x4x0/1(760000000msat in 2 htlcs)->
#   Flow 7: amount=920000000msat prob=0.105 fees=0msat delay=12 path=-103x2x0/1(min=max=4294967295msat)->-103x5x0/0(max=1039999999msat)->-103x3x0/1->
#   Flow 7: Success
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-08-23 10:47:28 +09:30
Rusty Russell
7db6aaa523 renepay: clarify chan_extra_can_send.
I am doing to add more more debugging, but sent here is 0.
Document that clearly, and put a real value in sent.

Also: since we already sub 1 msat from x, amount_msat_less_eq should
be amount_msat_less (it may be equal to our min, in theory).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-08-23 10:47:28 +09:30
Rusty Russell
7287ade705 plugins/renepay: use struct short_channel_id_dir.
No changes, just use this convenience type for handing
around, and arrays.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-08-23 10:47:28 +09:30
Rusty Russell
685c413b61 renepay: reduce minimum "known" if it proves incorrect.
There's a fascinating bug report which suggests this happens on local channels,
implying spendable_msat is wrong?

See-also: #6567
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-08-18 20:29:55 +09:30
Lagrang3
3024afe524 renepay: more cleanups
- adopt "const <type> *"convention
- remove use_shadow option for some pyln tests
- show prob. information of flows into paynotes
- show prob. of success of entire payment flow in paynotes
- minflow: We were not releasing the memory of flow arrays when replacing
  them with a new canditate.
- use memleak_scan_obj in memleak_check
- replace u64 with size_t

Signed-off-by: Lagrang3 <eduardo.quintana@pm.me>
2023-07-31 12:58:56 +09:30
Lagrang3
d46990d301 renepay: add information decay linear in time
Signed-off-by: Lagrang3 <eduardo.quintana@pm.me>
2023-07-31 12:58:56 +09:30
Rusty Russell
b8ca193606 renepay: an experimental payment plugin
Signed-off-by: Lagrang3 <eduardo.quintana@pm.me>
Changelog-Added: Plugins: `renepay`: an experimental pay plugin implementing Pickhardt payments (`renepay` and `renepaystatus`).
2023-07-31 12:58:56 +09:30