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wallet: Add method to retrieve outpoints from the utxoset

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Signed-off-by: Christian Decker <decker.christian@gmail.com>
This commit is contained in:
Christian Decker 2018-03-05 23:15:54 +01:00 • committed by Rusty Russell
parent 1de124277b
commit 387ba76920
2 changed files with 48 additions and 0 deletions
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35
wallet/wallet.c
View file

@ -1891,3 +1891,38 @@ void wallet_utxoset_add(struct wallet *w, const struct bitcoin_tx *tx,
outpointfilter_add(w->utxoset_outpoints, &txid, outnum);
}
struct outpoint *wallet_outpoint_for_scid(struct wallet *w, tal_t *ctx,
const struct short_channel_id *scid)
{
sqlite3_stmt *stmt;
struct outpoint *op;
stmt = db_prepare(w->db, "SELECT"
" txid,"
" spendheight,"
" scriptpubkey,"
" satoshis "
"FROM utxoset "
"WHERE blockheight = ?"
" AND txindex = ?"
" AND outnum = ?");
sqlite3_bind_int(stmt, 1, short_channel_id_blocknum(scid));
sqlite3_bind_int(stmt, 2, short_channel_id_txnum(scid));
sqlite3_bind_int(stmt, 3, short_channel_id_outnum(scid));
if (sqlite3_step(stmt) != SQLITE_ROW)
return NULL;
op = tal(ctx, struct outpoint);
op->blockheight = short_channel_id_blocknum(scid);
op->txindex = short_channel_id_txnum(scid);
op->outnum = short_channel_id_outnum(scid);
sqlite3_column_sha256_double(stmt, 0, &op->txid.shad);
op->spendheight = sqlite3_column_int(stmt, 1);
op->scriptpubkey = tal_arr(op, u8, sqlite3_column_bytes(stmt, 2));
memcpy(op->scriptpubkey, sqlite3_column_blob(stmt, 2), sqlite3_column_bytes(stmt, 2));
op->satoshis = sqlite3_column_int64(stmt, 3);
return op;
}

13
wallet/wallet.h
View file

@ -108,6 +108,16 @@ struct wallet_payment {
struct short_channel_id *route_channels;
};
struct outpoint {
struct bitcoin_txid txid;
u32 blockheight;
u32 txindex;
u32 outnum;
u64 satoshis;
u8 *scriptpubkey;
u32 spendheight;
};
/**
* wallet_new - Constructor for a new sqlite3 based wallet
*
@ -711,6 +721,9 @@ void wallet_blocks_rollback(struct wallet *w, u32 height);
void wallet_outpoint_spend(struct wallet *w, const u32 blockheight,
const struct bitcoin_txid *txid, const u32 outnum);
struct outpoint *wallet_outpoint_for_scid(struct wallet *w, tal_t *ctx,
const struct short_channel_id *scid);
void wallet_utxoset_add(struct wallet *w, const struct bitcoin_tx *tx,
const u32 outnum, const u32 blockheight,
const u32 txindex, const u8 *scriptpubkey,