lightningd: only store channel funding spend txs into db.

Now we do replay, we don't need the others.

Signed-off-by: Rusty Russell <[email protected]>

Author: rustyrussell

lightningd/onchain_control.c

@@ -208,9 +208,8 @@ static enum watch_result onchain_tx_watched(struct lightningd *ld,
 		return KEEP_WATCHING;
 	}
 
-	/* Store the channeltx so we can replay later */
-	wallet_channeltxs_add(ld->wallet, channel,
-			      WIRE_ONCHAIND_DEPTH, txid, 0, blockheight);
+	/* Store so we remember if we crash, and can replay later */
+	wallet_insert_funding_spend(ld->wallet, channel, txid, 0, blockheight);
 
 	onchain_tx_depth(channel, txid, depth);
 	return KEEP_WATCHING;
@@ -245,14 +244,6 @@ static enum watch_result onchain_txo_watched(struct channel *channel,
 					     size_t input_num,
 					     const struct block *block)
 {
-	struct bitcoin_txid txid;
-	bitcoin_txid(tx, &txid);
-
-	/* Store the channeltx so we can replay later */
-	wallet_channeltxs_add(channel->peer->ld->wallet, channel,
-			      WIRE_ONCHAIND_SPENT, &txid, input_num,
-			      block->height);
-
 	onchain_txo_spent(channel, tx, input_num, block->height);
 
 	/* We don't need to keep watching: If this output is double-spent

lightningd/peer_control.c

@@ -2167,8 +2167,8 @@ static enum watch_result funding_spent(struct channel *channel,
 		}
 	}
 
-	wallet_channeltxs_add(channel->peer->ld->wallet, channel,
-			      WIRE_ONCHAIND_INIT, &txid, 0, block->height);
+	wallet_insert_funding_spend(channel->peer->ld->wallet, channel,
+				    &txid, 0, block->height);
 
 	return onchaind_funding_spent(channel, tx, block->height);
 }

lightningd/test/run-invoice-select-inchan.c

@@ -1000,11 +1000,6 @@ void wallet_channel_save(struct wallet *w UNNEEDED, struct channel *chan UNNEEDE
 /* Generated stub for wallet_channel_stats_load */
 void wallet_channel_stats_load(struct wallet *w UNNEEDED, u64 cdbid UNNEEDED, struct channel_stats *stats UNNEEDED)
 { fprintf(stderr, "wallet_channel_stats_load called!\n"); abort(); }
-/* Generated stub for wallet_channeltxs_add */
-void wallet_channeltxs_add(struct wallet *w UNNEEDED, struct channel *chan UNNEEDED,
-			    const int type UNNEEDED, const struct bitcoin_txid *txid UNNEEDED,
-			   const u32 input_num UNNEEDED, const u32 blockheight UNNEEDED)
-{ fprintf(stderr, "wallet_channeltxs_add called!\n"); abort(); }
 /* Generated stub for wallet_delete_peer_if_unused */
 void wallet_delete_peer_if_unused(struct wallet *w UNNEEDED, u64 peer_dbid UNNEEDED)
 { fprintf(stderr, "wallet_delete_peer_if_unused called!\n"); abort(); }
@@ -1028,6 +1023,12 @@ bool wallet_htlcs_load_out_for_channel(struct wallet *wallet UNNEEDED,
 /* Generated stub for wallet_init_channels */
 bool wallet_init_channels(struct wallet *w UNNEEDED)
 { fprintf(stderr, "wallet_init_channels called!\n"); abort(); }
+/* Generated stub for wallet_insert_funding_spend */
+void wallet_insert_funding_spend(struct wallet *w UNNEEDED,
+				 const struct channel *chan UNNEEDED,
+				 const struct bitcoin_txid *txid UNNEEDED,
+				 const u32 input_num UNNEEDED, const u32 blockheight UNNEEDED)
+{ fprintf(stderr, "wallet_insert_funding_spend called!\n"); abort(); }
 /* Generated stub for wallet_offer_find */
 char *wallet_offer_find(const tal_t *ctx UNNEEDED,
 			struct wallet *w UNNEEDED,

wallet/db.c

@@ -1021,6 +1021,7 @@ static struct migration dbmigrations[] = {
     {SQL("ALTER TABLE channels ADD remote_htlc_minimum_msat BIGINT DEFAULT NULL;"), NULL},
     {SQL("ALTER TABLE channels ADD last_stable_connection BIGINT DEFAULT 0;"), NULL},
     {NULL, migrate_initialize_alias_local},
+    /* FIXME: Remove now-unused type column from channeltxs */
 };
 
 /**

wallet/wallet.c

@@ -4722,9 +4722,10 @@ struct bitcoin_txid *wallet_transactions_by_height(const tal_t *ctx,
 	return txids;
 }
 
-void wallet_channeltxs_add(struct wallet *w, struct channel *chan,
-			   const int type, const struct bitcoin_txid *txid,
-			   const u32 input_num, const u32 blockheight)
+void wallet_insert_funding_spend(struct wallet *w,
+				 const struct channel *chan,
+				 const struct bitcoin_txid *txid,
+				 const u32 input_num, const u32 blockheight)
 {
 	struct db_stmt *stmt;
 	stmt = db_prepare_v2(w->db, SQL("INSERT INTO channeltxs ("
@@ -4735,72 +4736,15 @@ void wallet_channeltxs_add(struct wallet *w, struct channel *chan,
 					", blockheight"
 					") VALUES (?, ?, ?, ?, ?);"));
 	db_bind_int(stmt, chan->dbid);
-	db_bind_int(stmt, type);
-	db_bind_sha256(stmt, &txid->shad.sha);
+	/* FIXME: This is WIRE_ONCHAIND_INIT, accidentally leaked into db! */
+	db_bind_int(stmt, 5001);
+	db_bind_txid(stmt, txid);
 	db_bind_int(stmt, input_num);
 	db_bind_int(stmt, blockheight);
 
 	db_exec_prepared_v2(take(stmt));
 }
 
-u32 *wallet_onchaind_channels(const tal_t *ctx, struct wallet *w)
-{
-	struct db_stmt *stmt;
-	size_t count = 0;
-	u32 *channel_ids = tal_arr(ctx, u32, 0);
-	stmt = db_prepare_v2(
-	    w->db,
-	    SQL("SELECT DISTINCT(channel_id) FROM channeltxs WHERE type = ?;"));
-	db_bind_int(stmt, WIRE_ONCHAIND_INIT);
-	db_query_prepared(stmt);
-
-	while (db_step(stmt)) {
-		count++;
-		tal_resize(&channel_ids, count);
-		channel_ids[count-1] = db_col_u64(stmt, "DISTINCT(channel_id)");
-	}
-	tal_free(stmt);
-
-	return channel_ids;
-}
-
-struct channeltx *wallet_channeltxs_get(const tal_t *ctx, struct wallet *w,
-					u32 channel_id)
-{
-	struct db_stmt *stmt;
-	size_t count = 0;
-	struct channeltx *res = tal_arr(ctx, struct channeltx, 0);
-	stmt = db_prepare_v2(
-	    w->db, SQL("SELECT"
-		       "  c.type"
-		       ", c.blockheight"
-		       ", t.rawtx"
-		       ", c.input_num"
-		       ", c.blockheight - t.blockheight + 1 AS depth"
-		       ", t.id as txid "
-		       "FROM channeltxs c "
-		       "JOIN transactions t ON t.id = c.transaction_id "
-		       "WHERE c.channel_id = ? "
-		       "ORDER BY c.id ASC;"));
-	db_bind_int(stmt, channel_id);
-	db_query_prepared(stmt);
-
-	while (db_step(stmt)) {
-		count++;
-		tal_resize(&res, count);
-
-		res[count-1].channel_id = channel_id;
-		res[count-1].type = db_col_int(stmt, "c.type");
-		res[count-1].blockheight = db_col_int(stmt, "c.blockheight");
-		res[count-1].tx = db_col_tx(ctx, stmt, "t.rawtx");
-		res[count-1].input_num = db_col_int(stmt, "c.input_num");
-		res[count-1].depth = db_col_int(stmt, "depth");
-		db_col_txid(stmt, "txid", &res[count-1].txid);
-	}
-	tal_free(stmt);
-	return res;
-}
-
 struct bitcoin_tx *wallet_get_funding_spend(const tal_t *ctx,
 					    struct wallet *w,
 					    u64 channel_id,

wallet/wallet.h

@@ -1221,22 +1221,13 @@ struct bitcoin_txid *wallet_transactions_by_height(const tal_t *ctx,
 						   const u32 blockheight);
 
 /**
- * Store transactions of interest in the database to replay on restart
+ * Store funding txid spend to start replay on restart
+ * Note that tx should already be saved by wallet_transaction_add!
  */
-void wallet_channeltxs_add(struct wallet *w, struct channel *chan,
-			    const int type, const struct bitcoin_txid *txid,
-			   const u32 input_num, const u32 blockheight);
-
-/**
- * List channels for which we had an onchaind running
- */
-u32 *wallet_onchaind_channels(const tal_t *ctx, struct wallet *w);
-
-/**
- * Get transactions that we'd like to replay for a channel.
- */
-struct channeltx *wallet_channeltxs_get(const tal_t *ctx, struct wallet *w,
-					u32 channel_id);
+void wallet_insert_funding_spend(struct wallet *w,
+				 const struct channel *chan,
+				 const struct bitcoin_txid *txid,
+				 const u32 input_num, const u32 blockheight);
 
 /**
  * Get the transaction which spend funding for this channel, if any.