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wallet: Add primitives to store onchaind transactions in the DB

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Signed-off-by: Christian Decker <decker.christian@gmail.com>
This commit is contained in:
Christian Decker 2018-04-03 16:57:28 +02:00
parent d2dc93e3cb
commit 876d698f3c
2 changed files with 95 additions and 1 deletions
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75
wallet/wallet.c
View file

@ -11,6 +11,7 @@
#include <lightningd/log.h>
#include <lightningd/peer_control.h>
#include <lightningd/peer_htlcs.h>
#include <onchaind/gen_onchain_wire.h>
#include <string.h>
#define SQLITE_MAX_UINT 0x7FFFFFFFFFFFFFFF
@ -2277,3 +2278,77 @@ 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)
{
sqlite3_stmt *stmt;
stmt = db_prepare(w->db, "INSERT INTO channeltxs ("
" channel_id"
", type"
", transaction_id"
", input_num"
", blockheight"
") VALUES (?, ?, ?, ?, ?);");
sqlite3_bind_int(stmt, 1, chan->dbid);
sqlite3_bind_int(stmt, 2, type);
sqlite3_bind_sha256(stmt, 3, &txid->shad.sha);
sqlite3_bind_int(stmt, 4, input_num);
sqlite3_bind_int(stmt, 5, blockheight);
db_exec_prepared(w->db, stmt);
}
u32 *wallet_onchaind_channels(struct wallet *w,
const tal_t *ctx)
{
sqlite3_stmt *stmt;
size_t count = 0;
u32 *channel_ids = tal_arr(ctx, u32, 0);
stmt = db_prepare(w->db, "SELECT DISTINCT(channel_id) FROM channeltxs WHERE type = ?;");
sqlite3_bind_int(stmt, 1, WIRE_ONCHAIN_INIT);
while (sqlite3_step(stmt) == SQLITE_ROW) {
count++;
tal_resize(&channel_ids, count);
channel_ids[count-1] = sqlite3_column_int64(stmt, 0);
}
return channel_ids;
}
struct channeltx *wallet_channeltxs_get(struct wallet *w, const tal_t *ctx,
u32 channel_id)
{
sqlite3_stmt *stmt;
size_t count = 0;
struct channeltx *res = tal_arr(ctx, struct channeltx, 0);
stmt = db_prepare(w->db,
"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 channel_id = ? "
"ORDER BY c.id ASC;");
sqlite3_bind_int(stmt, 1, channel_id);
while (sqlite3_step(stmt) == SQLITE_ROW) {
count++;
tal_resize(&res, count);
res[count-1].channel_id = channel_id;
res[count-1].type = sqlite3_column_int(stmt, 0);
res[count-1].blockheight = sqlite3_column_int(stmt, 1);
res[count-1].tx = sqlite3_column_tx(ctx, stmt, 2);
res[count-1].input_num = sqlite3_column_int(stmt, 3);
res[count-1].depth = sqlite3_column_int(stmt, 4);
sqlite3_column_sha256(stmt, 5, &res[count-1].txid.shad.sha);
}
return res;
}

21
wallet/wallet.h
View file

@ -128,7 +128,7 @@ struct channel_stats {
u64 out_msatoshi_offered, out_msatoshi_fulfilled;
};
struct onchaindtx {
struct channeltx {
u32 channel_id;
int type;
u32 blockheight;
@ -846,4 +846,23 @@ struct bitcoin_txid *wallet_transactions_by_height(const tal_t *ctx,
struct wallet *w,
const u32 blockheight);
/**
* Store transactions of interest in the database to replay on restart
*/
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(struct wallet *w,
const tal_t *ctx);
/**
* Get transactions that we'd like to replay for a channel.
*/
struct channeltx *wallet_channeltxs_get(struct wallet *w, const tal_t *ctx,
u32 channel_id);
#endif /* LIGHTNING_WALLET_WALLET_H */