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pay: Implement tracking of blockheight for starting payment attempts.

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ZmnSCPxj 2019-12-23 17:49:30 +00:00 • committed by Christian Decker
parent e9aa690d44
commit 6c0d7ca737
1 changed files with 52 additions and 1 deletions
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53
plugins/pay.c
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@ -37,6 +37,9 @@ struct pay_attempt {
struct json_out *failure;
/* The non-failure result (NULL on failure) */
const char *result;
/* The blockheight at which the payment attempt was
* started. */
u32 start_block;
};
struct pay_status {
@ -787,6 +790,54 @@ static struct command_result *execute_getroute(struct command *cmd,
take(params));
}
static struct command_result *
getstartblockheight_done(struct command *cmd,
const char *buf,
const jsmntok_t *result,
struct pay_command *pc)
{
const jsmntok_t *blockheight_tok;
u64 blockheight;
blockheight_tok = json_get_member(buf, result, "blockheight");
if (!blockheight_tok)
plugin_err("getstartblockheight: "
"getinfo gave no 'blockheight'? '%.*s'",
result->end - result->start, buf);
if (!json_to_u64(buf, blockheight_tok, &blockheight))
plugin_err("getstartblockheight: "
"getinfo gave non-number 'blockheight'? '%.*s'",
result->end - result->start, buf);
current_attempt(pc)->start_block = (u32) blockheight;
assert(((u64) current_attempt(pc)->start_block) == blockheight);
return execute_getroute(cmd, pc);
}
static struct command_result *
getstartblockheight_error(struct command *cmd,
const char *buf,
const jsmntok_t *error,
struct pay_command *pc)
{
/* Should never happen. */
plugin_err("getstartblockheight: getinfo failed!? '%.*s'",
error->end - error->start, buf);
}
static struct command_result *
execute_getstartblockheight(struct command *cmd,
struct pay_command *pc)
{
return send_outreq(cmd, "getinfo",
&getstartblockheight_done,
&getstartblockheight_error,
pc,
take(json_out_obj(NULL, NULL, NULL)));
}
static struct command_result *start_pay_attempt(struct command *cmd,
struct pay_command *pc,
const char *fmt, ...)
@ -811,7 +862,7 @@ static struct command_result *start_pay_attempt(struct command *cmd,
attempt->why = tal_vfmt(pc->ps, fmt, ap);
va_end(ap);
return execute_getroute(cmd, pc);
return execute_getstartblockheight(cmd, pc);
}
/* BOLT #7: