pay: Add hook for triggering storage of payments.

lightningd/pay.c

@@ -365,6 +365,12 @@ static void report_routing_failure(struct log *log,
 	tal_free(tmpctx);
 }
 
+void payment_store(struct lightningd *ld,
+		   const struct sha256 *payment_hash)
+{
+	wallet_payment_store(ld->wallet, payment_hash);
+}
+
 void payment_failed(struct lightningd *ld, const struct htlc_out *hout,
 		    const char *localfail)
 {
@@ -449,7 +455,7 @@ void payment_failed(struct lightningd *ld, const struct htlc_out *hout,
 	}
 
 	/* Save to DB */
-	wallet_payment_store(ld->wallet, &hout->payment_hash);
+	payment_store(ld, &hout->payment_hash);
 	wallet_payment_set_status(ld->wallet, &hout->payment_hash,
 				  PAYMENT_FAILED, NULL);
 	wallet_payment_set_failinfo(ld->wallet,

lightningd/pay.h

@@ -69,4 +69,7 @@ void payment_succeeded(struct lightningd *ld, struct htlc_out *hout,
 void payment_failed(struct lightningd *ld, const struct htlc_out *hout,
 		    const char *localfail);
 
+/* Inform payment system to save the payment. */
+void payment_store(struct lightningd *ld, const struct sha256 *payment_hash);
+
 #endif /* LIGHTNING_LIGHTNINGD_PAY_H */

lightningd/peer_htlcs.c

@@ -900,8 +900,8 @@ static bool update_out_htlc(struct channel *channel,
 
 		/* For our own HTLCs, we commit payment to db lazily */
 		if (hout->origin_htlc_id == 0)
-			wallet_payment_store(ld->wallet,
-					     &hout->payment_hash);
+			payment_store(ld,
+				      &hout->payment_hash);
 	}
 
 	if (!htlc_out_update_state(channel, hout, newstate))