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wallet: Add function to retrieve the latest groupid for a payment

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When doing things like `waitsendpay` without specifying the `groupid`
we likely want to use the latest `groupid` we created, since that's
the one in flight. This adds a function to quickly retrieve that.
This commit is contained in:
Christian Decker 2021-09-30 13:17:42 +02:00 • committed by Rusty Russell
parent db84b984e5
commit 0bb0d8a707
2 changed files with 26 additions and 0 deletions
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17
wallet/wallet.c
View file

@ -3018,6 +3018,23 @@ void wallet_payment_delete(struct wallet *wallet,
db_exec_prepared_v2(take(stmt));
}
u64 wallet_payment_get_groupid(struct wallet *wallet,
const struct sha256 *payment_hash)
{
struct db_stmt *stmt;
u64 groupid = 0;
stmt = db_prepare_v2(
wallet->db, SQL("SELECT MAX(groupid) FROM payments WHERE payment_hash = ?"));
db_bind_sha256(stmt, 0, payment_hash);
db_query_prepared(stmt);
if (db_step(stmt) && !db_column_is_null(stmt, 0)) {
groupid = db_column_u64(stmt, 0);
}
tal_free(stmt);
return groupid;
}
void wallet_payment_delete_by_hash(struct wallet *wallet,
const struct sha256 *payment_hash)
{

9
wallet/wallet.h
View file

@ -1050,6 +1050,15 @@ wallet_payment_by_hash(const tal_t *ctx, struct wallet *wallet,
const struct sha256 *payment_hash,
u64 partid);
/**
* Retrieve maximum groupid for a given payment_hash.
*
* Useful to either wait on the latest payment that was iniated with
* the hash or start a new one by incrementing the groupid.
*/
u64 wallet_payment_get_groupid(struct wallet *wallet,
const struct sha256 *payment_hash);
/**
* wallet_payment_set_status - Update the status of the payment
*