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#include "db.h"
#include "htlc.h"
#include "log.h"
#include "peer.h"
#include "peer_internal.h"
#include "type_to_string.h"
#include <bitcoin/preimage.h>
#include <ccan/tal/str/str.h>
#include <inttypes.h>
void htlc_changestate(struct htlc *h,
enum htlc_state oldstate,
enum htlc_state newstate,
bool db_commit)
{
peer_debug(h->peer, "htlc %"PRIu64": %s->%s", h->id,
htlc_state_name(h->state), htlc_state_name(newstate));
assert(h->state == oldstate);
/* You can only go to consecutive states. */
assert(newstate == h->state + 1);
/* You can't change sides. */
assert((htlc_state_flags(h->state)&(HTLC_LOCAL_F_OWNER|HTLC_REMOTE_F_OWNER))
== (htlc_state_flags(newstate)&(HTLC_LOCAL_F_OWNER|HTLC_REMOTE_F_OWNER)));
h->state = newstate;
if (db_commit) {
if (newstate == RCVD_ADD_COMMIT || newstate == SENT_ADD_COMMIT) {
db_new_htlc(h->peer, h);
return;
}
/* These never hit the database. */
if (oldstate == RCVD_REMOVE_HTLC)
oldstate = SENT_ADD_ACK_REVOCATION;
else if (oldstate == SENT_REMOVE_HTLC)
oldstate = RCVD_ADD_ACK_REVOCATION;
db_update_htlc_state(h->peer, h, oldstate);
}
}
void htlc_undostate(struct htlc *h,
enum htlc_state oldstate,
enum htlc_state newstate)
{
log_debug(h->peer->log, "htlc %"PRIu64": %s->%s", h->id,
htlc_state_name(h->state), htlc_state_name(newstate));
assert(h->state == oldstate);
/* You can only return to previous state. */
assert(newstate == h->state - 1);
/* And must only be proposal, not commit. */
assert(h->state == SENT_REMOVE_HTLC || h->state == RCVD_REMOVE_HTLC);
/* You can't change sides. */
assert((htlc_state_flags(h->state)&(HTLC_LOCAL_F_OWNER|HTLC_REMOTE_F_OWNER))
== (htlc_state_flags(newstate)&(HTLC_LOCAL_F_OWNER|HTLC_REMOTE_F_OWNER)));
h->state = newstate;
}
static char *fmt_htlc(const tal_t *ctx, const struct htlc *h)
{
return tal_fmt(ctx, "{ id=%"PRIu64
" msatoshi=%"PRIu64
" expiry=%s"
" rhash=%s"
" rval=%s"
" src=%s }",
h->id, h->msatoshi,
type_to_string(ctx, struct abs_locktime, &h->expiry),
type_to_string(ctx, struct sha256, &h->rhash),
h->r ? tal_hexstr(ctx, h->r, sizeof(*h->r))
: "UNKNOWN",
h->src ? type_to_string(ctx, struct pubkey,
h->src->peer->id)
: "local");
}
REGISTER_TYPE_TO_STRING(htlc, fmt_htlc);