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36a29fbfbc
There are hardly any lightningd-specific JSON functions: all that's left are the feerate ones, and there's already a comment that we should have a lightningd/feerate.h. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
#include "config.h"
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#include <common/json_command.h>
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#include <lightningd/chaintopology.h>
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#include <lightningd/feerate.h>
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#include <lightningd/jsonrpc.h>
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#include <lightningd/lightningd.h>
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const char *feerate_name(enum feerate feerate)
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{
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switch (feerate) {
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case FEERATE_OPENING: return "opening";
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case FEERATE_MUTUAL_CLOSE: return "mutual_close";
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case FEERATE_UNILATERAL_CLOSE: return "unilateral_close";
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case FEERATE_DELAYED_TO_US: return "delayed_to_us";
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case FEERATE_HTLC_RESOLUTION: return "htlc_resolution";
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case FEERATE_PENALTY: return "penalty";
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case FEERATE_MIN: return "min_acceptable";
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case FEERATE_MAX: return "max_acceptable";
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}
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abort();
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}
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struct command_result *param_feerate_style(struct command *cmd,
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const char *name,
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const char *buffer,
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const jsmntok_t *tok,
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enum feerate_style **style)
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{
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*style = tal(cmd, enum feerate_style);
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if (json_tok_streq(buffer, tok,
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feerate_style_name(FEERATE_PER_KSIPA))) {
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**style = FEERATE_PER_KSIPA;
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return NULL;
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} else if (json_tok_streq(buffer, tok,
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feerate_style_name(FEERATE_PER_KBYTE))) {
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**style = FEERATE_PER_KBYTE;
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return NULL;
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}
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"'%s' should be '%s' or '%s', not '%.*s'",
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name,
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feerate_style_name(FEERATE_PER_KSIPA),
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feerate_style_name(FEERATE_PER_KBYTE),
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json_tok_full_len(tok), json_tok_full(buffer, tok));
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}
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struct command_result *param_feerate(struct command *cmd, const char *name,
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const char *buffer, const jsmntok_t *tok,
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u32 **feerate)
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{
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for (size_t i = 0; i < NUM_FEERATES; i++) {
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if (json_tok_streq(buffer, tok, feerate_name(i)))
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return param_feerate_estimate(cmd, feerate, i);
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}
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/* We used SLOW, NORMAL, and URGENT as feerate targets previously,
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* and many commands rely on this syntax now.
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* It's also really more natural for an user interface. */
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if (json_tok_streq(buffer, tok, "slow"))
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return param_feerate_estimate(cmd, feerate, FEERATE_MIN);
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else if (json_tok_streq(buffer, tok, "normal"))
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return param_feerate_estimate(cmd, feerate, FEERATE_OPENING);
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else if (json_tok_streq(buffer, tok, "urgent"))
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return param_feerate_estimate(cmd, feerate, FEERATE_UNILATERAL_CLOSE);
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/* It's a number... */
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return param_feerate_val(cmd, name, buffer, tok, feerate);
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}
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struct command_result *param_feerate_estimate(struct command *cmd,
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u32 **feerate_per_kw,
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enum feerate feerate)
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{
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*feerate_per_kw = tal(cmd, u32);
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**feerate_per_kw = try_get_feerate(cmd->ld->topology, feerate);
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if (!**feerate_per_kw)
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return command_fail(cmd, LIGHTNINGD, "Cannot estimate fees");
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return NULL;
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}
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struct command_result *param_feerate_val(struct command *cmd,
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const char *name, const char *buffer,
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const jsmntok_t *tok,
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u32 **feerate_per_kw)
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{
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jsmntok_t base = *tok;
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enum feerate_style style;
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unsigned int num;
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if (json_tok_endswith(buffer, tok,
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feerate_style_name(FEERATE_PER_KBYTE))) {
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style = FEERATE_PER_KBYTE;
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base.end -= strlen(feerate_style_name(FEERATE_PER_KBYTE));
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} else if (json_tok_endswith(buffer, tok,
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feerate_style_name(FEERATE_PER_KSIPA))) {
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style = FEERATE_PER_KSIPA;
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base.end -= strlen(feerate_style_name(FEERATE_PER_KSIPA));
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} else
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style = FEERATE_PER_KBYTE;
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if (!json_to_number(buffer, &base, &num)) {
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"'%s' should be an integer with optional perkw/perkb, not '%.*s'",
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name, base.end - base.start,
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buffer + base.start);
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}
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*feerate_per_kw = tal(cmd, u32);
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**feerate_per_kw = feerate_from_style(num, style);
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if (**feerate_per_kw < FEERATE_FLOOR)
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**feerate_per_kw = FEERATE_FLOOR;
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return NULL;
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}
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