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offers: monitor blockheight.

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We need this to create the payment_constraints for an invoice blinded path.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2022-11-09 13:01:59 +10:30 • committed by Christian Decker
parent 4bc10579e6
commit 744605997e
1 changed files with 24 additions and 6 deletions
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30
plugins/offers.c
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@ -18,6 +18,7 @@
#include <plugins/offers_offer.h> #include <plugins/offers_offer.h>
struct pubkey id; struct pubkey id;
u32 blockheight;
u16 cltv_final; u16 cltv_final;
bool offers_enabled; bool offers_enabled;
@ -132,6 +133,23 @@ static const struct plugin_hook hooks[] = {
}, },
}; };
static struct command_result *block_added_notify(struct command *cmd,
const char *buf,
const jsmntok_t *params)
{
json_scan(cmd, buf, params, "{block:{height:%}}",
JSON_SCAN(json_to_u32, &blockheight));
return notification_handled(cmd);
}
static const struct plugin_notification notifications[] = {
{
"block_added",
block_added_notify,
},
};
struct decodable { struct decodable {
const char *type; const char *type;
struct bolt11 *b11; struct bolt11 *b11;
@ -922,12 +940,10 @@ static const char *init(struct plugin *p,
const char *buf UNUSED, const char *buf UNUSED,
const jsmntok_t *config UNUSED) const jsmntok_t *config UNUSED)
{ {
struct pubkey k;
rpc_scan(p, "getinfo", rpc_scan(p, "getinfo",
take(json_out_obj(NULL, NULL, NULL)), take(json_out_obj(NULL, NULL, NULL)),
"{id:%}", JSON_SCAN(json_to_pubkey, &k)); "{id:%}", JSON_SCAN(json_to_pubkey, &id),
id.pubkey = k.pubkey; "{blockheight:%}", JSON_SCAN(json_to_u32, &blockheight));
rpc_scan(p, "listconfigs", rpc_scan(p, "listconfigs",
take(json_out_obj(NULL, NULL, NULL)), take(json_out_obj(NULL, NULL, NULL)),
@ -968,7 +984,9 @@ int main(int argc, char *argv[])
/* We deal in UTC; mktime() uses local time */ /* We deal in UTC; mktime() uses local time */
setenv("TZ", "", 1); setenv("TZ", "", 1);
plugin_main(argv, init, PLUGIN_RESTARTABLE, true, NULL, commands, plugin_main(argv, init, PLUGIN_RESTARTABLE, true, NULL,
ARRAY_SIZE(commands), NULL, 0, hooks, ARRAY_SIZE(hooks), commands, ARRAY_SIZE(commands),
notifications, ARRAY_SIZE(notifications),
hooks, ARRAY_SIZE(hooks),
NULL, 0, NULL); NULL, 0, NULL);
} }