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feerate.c
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165 lines (148 loc) · 4.94 KB
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#include "config.h"
#include <common/json_command.h>
#include <lightningd/chaintopology.h>
#include <lightningd/feerate.h>
#include <lightningd/jsonrpc.h>
#include <lightningd/lightningd.h>
const char *feerate_name(enum feerate feerate)
{
switch (feerate) {
case FEERATE_OPENING: return "opening";
case FEERATE_MUTUAL_CLOSE: return "mutual_close";
case FEERATE_UNILATERAL_CLOSE: return "unilateral_close";
case FEERATE_DELAYED_TO_US: return "delayed_to_us";
case FEERATE_HTLC_RESOLUTION: return "htlc_resolution";
case FEERATE_PENALTY: return "penalty";
case FEERATE_MIN: return "min_acceptable";
case FEERATE_MAX: return "max_acceptable";
}
abort();
}
struct command_result *param_feerate_style(struct command *cmd,
const char *name,
const char *buffer,
const jsmntok_t *tok,
enum feerate_style **style)
{
*style = tal(cmd, enum feerate_style);
if (json_tok_streq(buffer, tok,
feerate_style_name(FEERATE_PER_KSIPA))) {
**style = FEERATE_PER_KSIPA;
return NULL;
} else if (json_tok_streq(buffer, tok,
feerate_style_name(FEERATE_PER_KBYTE))) {
**style = FEERATE_PER_KBYTE;
return NULL;
}
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"'%s' should be '%s' or '%s', not '%.*s'",
name,
feerate_style_name(FEERATE_PER_KSIPA),
feerate_style_name(FEERATE_PER_KBYTE),
json_tok_full_len(tok), json_tok_full(buffer, tok));
}
/* This can set **feerate to 0, if it's unknown. */
static struct command_result *param_feerate_unchecked(struct command *cmd,
const char *name,
const char *buffer,
const jsmntok_t *tok,
u32 **feerate)
{
*feerate = tal(cmd, u32);
if (json_tok_streq(buffer, tok, "opening")) {
**feerate = opening_feerate(cmd->ld->topology);
return NULL;
}
if (json_tok_streq(buffer, tok, "mutual_close")) {
**feerate = mutual_close_feerate(cmd->ld->topology);
return NULL;
}
if (json_tok_streq(buffer, tok, "penalty")) {
**feerate = penalty_feerate(cmd->ld->topology);
return NULL;
}
if (json_tok_streq(buffer, tok, "unilateral_close")) {
**feerate = unilateral_feerate(cmd->ld->topology, false);
return NULL;
}
if (json_tok_streq(buffer, tok, "unilateral_anchor_close")) {
**feerate = unilateral_feerate(cmd->ld->topology, true);
return NULL;
}
/* We used SLOW, NORMAL, and URGENT as feerate targets previously,
* and many commands rely on this syntax now.
* It's also really more natural for an user interface. */
if (json_tok_streq(buffer, tok, "slow")) {
**feerate = feerate_for_deadline(cmd->ld->topology, 100);
return NULL;
} else if (json_tok_streq(buffer, tok, "normal")) {
**feerate = feerate_for_deadline(cmd->ld->topology, 12);
return NULL;
} else if (json_tok_streq(buffer, tok, "urgent")) {
**feerate = feerate_for_deadline(cmd->ld->topology, 6);
return NULL;
} else if (json_tok_streq(buffer, tok, "minimum")) {
**feerate = get_feerate_floor(cmd->ld->topology);
return NULL;
}
/* Can specify number of blocks as a target */
if (json_tok_endswith(buffer, tok, "blocks")) {
jsmntok_t base = *tok;
base.end -= strlen("blocks");
u32 numblocks;
if (!json_to_number(buffer, &base, &numblocks)) {
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"'%s' should be an integer not '%.*s'",
name, base.end - base.start,
buffer + base.start);
}
**feerate = feerate_for_deadline(cmd->ld->topology, numblocks);
return NULL;
}
/* It's a number... */
tal_free(*feerate);
return param_feerate_val(cmd, name, buffer, tok, feerate);
}
struct command_result *param_feerate(struct command *cmd, const char *name,
const char *buffer, const jsmntok_t *tok,
u32 **feerate)
{
struct command_result *ret;
ret = param_feerate_unchecked(cmd, name, buffer, tok, feerate);
if (ret)
return ret;
if (**feerate == 0)
return command_fail(cmd, BCLI_NO_FEE_ESTIMATES,
"Cannot estimate fees (yet)");
return NULL;
}
struct command_result *param_feerate_val(struct command *cmd,
const char *name, const char *buffer,
const jsmntok_t *tok,
u32 **feerate_per_kw)
{
jsmntok_t base = *tok;
enum feerate_style style;
unsigned int num;
if (json_tok_endswith(buffer, tok,
feerate_style_name(FEERATE_PER_KBYTE))) {
style = FEERATE_PER_KBYTE;
base.end -= strlen(feerate_style_name(FEERATE_PER_KBYTE));
} else if (json_tok_endswith(buffer, tok,
feerate_style_name(FEERATE_PER_KSIPA))) {
style = FEERATE_PER_KSIPA;
base.end -= strlen(feerate_style_name(FEERATE_PER_KSIPA));
} else
style = FEERATE_PER_KBYTE;
if (!json_to_number(buffer, &base, &num)) {
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"'%s' should be an integer with optional perkw/perkb, not '%.*s'",
name, base.end - base.start,
buffer + base.start);
}
*feerate_per_kw = tal(cmd, u32);
**feerate_per_kw = feerate_from_style(num, style);
if (**feerate_per_kw < FEERATE_FLOOR)
**feerate_per_kw = FEERATE_FLOOR;
return NULL;
}