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chaintopology: implement dev-setfees to force feerate changes.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2017-11-21 15:56:59 +10:30 committed by Christian Decker
parent 552e56d002
commit 1a38c98a7e
1 changed files with 62 additions and 0 deletions
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62
lightningd/chaintopology.c
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@ -605,6 +605,68 @@ static const struct json_command dev_blockheight = {
"Returns { blockheight: u32 } on success"
};
AUTODATA(json_command, &dev_blockheight);
static void json_dev_setfees(struct command *cmd,
const char *buffer, const jsmntok_t *params)
{
jsmntok_t *ratetok[NUM_FEERATES];
struct chain_topology *topo = cmd->ld->topology;
struct json_result *response;
if (!json_get_params(buffer, params,
"?immediate", &ratetok[FEERATE_IMMEDIATE],
"?normal", &ratetok[FEERATE_NORMAL],
"?slow", &ratetok[FEERATE_SLOW],
NULL)) {
command_fail(cmd, "Bad parameters");
return;
}
if (!topo->override_fee_rate) {
u32 fees[NUM_FEERATES];
for (size_t i = 0; i < ARRAY_SIZE(fees); i++)
fees[i] = get_feerate(topo, i);
topo->override_fee_rate = tal_dup_arr(topo, u32, fees,
ARRAY_SIZE(fees), 0);
}
for (size_t i = 0; i < NUM_FEERATES; i++) {
if (!ratetok[i])
continue;
if (!json_tok_number(buffer, ratetok[i],
&topo->override_fee_rate[i])) {
command_fail(cmd, "invalid feerate %.*s",
(int)(ratetok[i]->end - ratetok[i]->start),
buffer + ratetok[i]->start);
return;
}
}
log_debug(topo->log,
"dev-setfees: fees now %u/%u/%u",
topo->override_fee_rate[FEERATE_IMMEDIATE],
topo->override_fee_rate[FEERATE_NORMAL],
topo->override_fee_rate[FEERATE_SLOW]);
notify_feerate_change(cmd->ld);
response = new_json_result(cmd);
json_object_start(response, NULL);
json_add_num(response, "immediate",
topo->override_fee_rate[FEERATE_IMMEDIATE]);
json_add_num(response, "normal",
topo->override_fee_rate[FEERATE_NORMAL]);
json_add_num(response, "slow",
topo->override_fee_rate[FEERATE_SLOW]);
json_object_end(response);
command_success(cmd, response);
}
static const struct json_command dev_setfees_command = {
"dev-setfees",
json_dev_setfees,
"Set feerate in satoshi-per-kw for {immediate}, {normal} and {slow} (each optional). Returns the value of those three feerates.",
"Allows testing of feerate changes"
};
AUTODATA(json_command, &dev_setfees_command);
#endif /* DEVELOPER */
/* On shutdown, peers get deleted last. That frees from our list, so