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paymod: Include excludes resulting from channel_hints for getrotue

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This commit is contained in:
Christian Decker
2020-05-22 17:40:18 +02:00
parent c2538392e9
commit 10f231bcb5
1 changed files with 23 additions and 0 deletions
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23
plugins/libplugin-pay.c
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@@ -237,6 +237,28 @@ static struct command_result *payment_getroute_error(struct command *cmd,
return command_still_pending(cmd); return command_still_pending(cmd);
} }
/* Iterate through the channel_hints and exclude any channel that we are
* confident will not be able to handle this payment. */
static void payment_getroute_add_excludes(struct payment *p,
struct json_stream *js)
{
struct payment *root = payment_root(p);
struct channel_hint *hint;
json_array_start(js, "exclude");
for (size_t i = 0; i < tal_count(root->channel_hints); i++) {
hint = &root->channel_hints[i];
if (!hint->enabled)
json_add_short_channel_id_dir(js, NULL, &hint->scid);
else if (amount_msat_greater_eq(p->amount,
hint->estimated_capacity))
json_add_short_channel_id_dir(js, NULL, &hint->scid);
}
json_array_end(js);
}
static void payment_getroute(struct payment *p) static void payment_getroute(struct payment *p)
{ {
struct out_req *req; struct out_req *req;
@@ -247,6 +269,7 @@ static void payment_getroute(struct payment *p)
json_add_amount_msat_only(req->js, "msatoshi", p->amount); json_add_amount_msat_only(req->js, "msatoshi", p->amount);
json_add_num(req->js, "riskfactor", 1); json_add_num(req->js, "riskfactor", 1);
json_add_num(req->js, "cltv", p->getroute_cltv); json_add_num(req->js, "cltv", p->getroute_cltv);
payment_getroute_add_excludes(p, req->js);
send_outreq(p->plugin, req); send_outreq(p->plugin, req);
} }