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wallet: Added loading of HTLCs from the database

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Signed-off-by: Christian Decker <decker.christian@gmail.com>
This commit is contained in:
Christian Decker 2017-09-25 20:44:23 +02:00 • committed by Rusty Russell
parent 53763ba6a4
commit eb5ed961ed
4 changed files with 40 additions and 19 deletions
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6
wallet/Makefile
View file

@ -15,10 +15,12 @@ WALLET_LIB_OBJS := $(WALLET_LIB_SRC:.c=.o)
WALLET_LIB_HEADERS := $(WALLET_LIB_SRC:.c=.h)
WALLET_TEST_COMMON_OBJS := \
lightningd/log.o \
common/htlc_state.o \
common/type_to_string.o \
common/pseudorand.o \
common/utils.o
common/utils.o \
lightningd/htlc_end.o \
lightningd/log.o
WALLET_TEST_SRC := $(wildcard wallet/*_tests.c)
WALLET_TEST_OBJS := $(WALLET_TEST_SRC:.c=.o)

19
wallet/wallet.c
View file

@ -1020,7 +1020,7 @@ bool wallet_htlcs_load_for_channel(struct wallet *wallet,
sqlite3_stmt *stmt = db_query(
__func__, wallet->db,
"SELECT id, channel_htlc_id, msatoshi, cltv_expiry, hstate, "
"payment_hash, shared_secret, payment_key FROM channel_htlcs WHERE "
"payment_hash, shared_secret, payment_key, routing_onion FROM channel_htlcs WHERE "
"direction=%d AND channel_id=%" PRIu64 " AND hstate != %d",
DIRECTION_INCOMING, chan->id, SENT_REMOVE_ACK_REVOCATION);
@ -1041,7 +1041,7 @@ bool wallet_htlcs_load_for_channel(struct wallet *wallet,
stmt = db_query(
__func__, wallet->db,
"SELECT id, channel_htlc_id, msatoshi, cltv_expiry, hstate, "
"payment_hash, origin_htlc, payment_key FROM channel_htlcs WHERE "
"payment_hash, origin_htlc, payment_key, routing_onion FROM channel_htlcs WHERE "
"direction=%d AND channel_id=%" PRIu64 " AND hstate != %d",
DIRECTION_OUTGOING, chan->id, RCVD_REMOVE_ACK_REVOCATION);
@ -1063,18 +1063,3 @@ bool wallet_htlcs_load_for_channel(struct wallet *wallet,
return ok;
}
/**
* wallet_shachain_delete - Drop the shachain from the database
*
* Deletes the shachain from the database, including dependent
* shachain_known items.
*/
/* TOOD(cdecker) Uncomment once we have implemented channel delete
static bool wallet_shachain_delete(struct wallet *w,
struct wallet_shachain *chain)
{
return db_exec(__func__, w->db,
"DELETE FROM shachains WHERE id=%" PRIu64, chain->id);
}
*/

25
wallet/wallet.h
View file

@ -264,4 +264,29 @@ bool wallet_htlc_update(struct wallet *wallet, const u64 htlc_dbid,
const enum htlc_state new_state,
const struct preimage *payment_key);
/**
* wallet_htlcs_load_for_channel - Load HTLCs associated with chan from DB.
*
* @wallet: wallet to load from
* @chan: load HTLCs associated with this channel
* @htlcs_in: htlc_in_map to store loaded htlc_in in
* @htlcs_out: htlc_out_map to store loaded htlc_out in
*
* This function looks for HTLCs that are associated with the given
* channel and loads them into the provided maps. One caveat is that
* the `struct htlc_out` instances are not wired up with the
* corresponding `struct htlc_in` in the forwarding case nor are they
* associated with a `struct pay_command` in the case we originated
* the payment. In the former case the corresponding `struct htlc_in`
* may not have been loaded yet. In the latter case the pay_command
* does not exist anymore since we restarted.
*
* Use `wallet_htlcs_reconnect` to wire htlc_out instances to the
* corresponding htlc_in after loading all channels.
*/
bool wallet_htlcs_load_for_channel(struct wallet *wallet,
struct wallet_channel *chan,
struct htlc_in_map *htlcs_in,
struct htlc_out_map *htlcs_out);
#endif /* WALLET_WALLET_H */

9
wallet/wallet_tests.c
View file

@ -301,6 +301,8 @@ static bool test_htlc_crud(const tal_t *ctx)
struct preimage payment_key;
struct wallet_channel chan;
struct wallet *w = create_test_wallet(ctx);
struct htlc_in_map htlcs_in;
struct htlc_out_map htlcs_out;
/* Make sure we have our references correct */
db_exec(__func__, w->db, "INSERT INTO channels (id) VALUES (1);");
@ -333,6 +335,13 @@ static bool test_htlc_crud(const tal_t *ctx)
CHECK_MSG(out.dbid != 0, "HTLC DB ID was not set.");
CHECK_MSG(!wallet_htlc_save_out(w, &chan, &out),
"Saving two HTLCs with the same data must not succeed.");
/* Attempt to load them from the DB again */
htlc_in_map_init(&htlcs_in);
htlc_out_map_init(&htlcs_out);
CHECK_MSG(wallet_htlcs_load_for_channel(w, &chan, &htlcs_in, &htlcs_out),
"Failed loading HTLCs");
return true;
}