static int bitcui_init(void) {
int res;
bitcui_set_status("ui starting..");
btcui->poll = poll_create();
res = bitcui_notify_init(&btcui->eventFd, &btcui->notifyFd);
ASSERT(res == 0);
fx_init();
ncui_init();
bitcui_log_init();
poll_callback_device(btcui->poll, STDIN_FILENO, 1, 0, 1, ncui_input_cb, NULL);
poll_callback_time(btcui->poll, 1 * 1000 * 1000 / 2, TRUE, ncui_time_cb,
NULL);
return 0;
}
void bitcui_stop(void) {
bitcui_set_status("Exiting..");
bitcui_req_exit();
if (btcui->inuse == 1) {
int res;
Log(LGPFX " stopping ui thread.\n");
res = pthread_join(btcui->tid, NULL);
ASSERT(res == 0);
Log(LGPFX " ui thread stopped: %d\n", res);
}
ASSERT(btcui->lock);
mutex_free(btcui->lock);
btcui->lock = NULL;
ASSERT(btcui->cv);
condvar_free(btcui->cv);
memset(btcui, 0, sizeof *btcui);
}
static int
blockset_open_file(struct blockstore *blockStore,
struct blockset *bs)
{
uint64 offset;
mtime_t ts;
int res;
res = file_open(bs->filename, 0 /* R/O */, 0 /* !unbuf */, &bs->desc);
if (res) {
return res;
}
bs->filesize = file_getsize(bs->desc);
if (bs->filesize < 0) {
return errno;
}
if (bs->filesize > 0) {
char *s = print_size(bs->filesize);
char *name = file_getname(bs->filename);
Log(LGPFX" reading file %s -- %s -- %llu headers.\n",
name, s, bs->filesize / sizeof(btc_block_header));
free(name);
free(s);
}
ts = time_get();
offset = 0;
while (offset < bs->filesize) {
btc_block_header buf[10000];
size_t numRead;
size_t numBytes;
int numHeaders;
int i;
numBytes = MIN(bs->filesize - offset, sizeof buf);
res = file_pread(bs->desc, offset, buf, numBytes, &numRead);
if (res != 0) {
break;
}
if (btc->stop != 0) {
res = 1;
NOT_TESTED();
break;
}
numHeaders = numRead / sizeof(btc_block_header);
for (i = 0; i < numHeaders; i++) {
struct blockentry *be;
uint256 hash;
be = blockstore_alloc_entry(buf + i);
be->written = 1;
hash256_calc(buf + i, sizeof buf[0], &hash);
if (!blockstore_validate_chkpt(&hash, blockStore->height + 1)) {
return 1;
}
blockstore_add_entry(blockStore, be, &hash);
if (i == numHeaders - 1) {
bitcui_set_status("loading headers .. %llu%%",
(offset + numBytes) * 100 / bs->filesize);
}
if (i == numHeaders - 1 ||
(numBytes < sizeof buf && i > numHeaders - 256)) {
bitcui_set_last_block_info(&hash, blockStore->height,
be->header.timestamp);
}
}
offset += numRead;
}
ts = time_get() - ts;
char hashStr[80];
char *latStr;
uint256_snprintf_reverse(hashStr, sizeof hashStr, &blockStore->best_hash);
Log(LGPFX" loaded blocks up to %s\n", hashStr);
latStr = print_latency(ts);
Log(LGPFX" this took %s\n", latStr);
free(latStr);
return res;
}
int
txdb_craft_tx(struct txdb *txdb,
const struct btc_tx_desc *tx_desc,
btc_msg_tx *tx)
{
struct buff *buf;
char hashStr[80];
uint256 txHash;
uint64 change;
uint32 numCoins;
bool relevant;
mtime_t ts;
int res;
res = 0;
relevant = 0;
tx->version = 1;
txdb_prepare_txout(tx_desc, tx);
/*
* In order to properly size 'tx->txIn', we need to determine how many coins
* we're going to use. Right now, let's just vastly overestimate.
*/
numCoins = hashtable_getnumentries(txdb->hash_txo);
tx->tx_in = safe_calloc(numCoins, sizeof *tx->tx_in);
txdb_print_coins(txdb, 1);
txdb_select_coins(txdb, tx_desc, tx, &change);
/*
* Change! XXX: fix me.
*/
if (change > 0) {
const char *btc_change;
btc_change = wallet_get_change_addr(btc->wallet);
tx->out_count++;
txdb_set_txo(tx, tx->out_count - 1, btc_change, change);
Warning(LGPFX" change: %llu -- %.8f BTC\n", change, change / ONE_BTC);
}
txdb_sign_tx_inputs(txdb, tx);
/*
* Now that the tx is ready, serialize it and check that it's not too big.
*/
btcmsg_print_tx(tx);
buf = buff_alloc();
serialize_tx(buf, tx);
if (buff_curlen(buf) > BTC_TX_MAX_SIZE) {
Warning(LGPFX" tx too large: %zu\n", buff_curlen(buf));
res = 1;
goto exit;
}
hash256_calc(buff_base(buf), buff_curlen(buf), &txHash);
uint256_snprintf_reverse(hashStr, sizeof hashStr, &txHash);
Warning(LGPFX" %s (%zu bytes)\n", hashStr, buff_curlen(buf));
Log_Bytes(LGPFX" TX: ", buff_base(buf), buff_curlen(buf));
if (bitc_testing) {
Warning("TESTING! Not saving/relaying tx.\n");
goto exit;
}
ts = time(NULL);
res = txdb_remember_tx(txdb, 0 /* save to disk */, ts,
buff_base(buf), buff_curlen(buf),
&txHash, NULL, &relevant);
txdb_save_tx_label(tx_desc, hashStr);
txdb_export_tx_info(txdb);
res = peergroup_new_tx_broadcast(btc->peerGroup, buf,
ts + 2 * 60 * 60, &txHash);
if (res) {
Warning(LGPFX" failed to transmit tx: %d\n", res);
bitcui_set_status("got errors while broadcasting tx");
}
exit:
buff_free(buf);
/*
* XXX: We should mark the coins used by this tx as "reserved", so that we
* do not attempt to use conflicting coins in subsequent TXs.
*/
return res;
}
static int
txdb_remember_tx(struct txdb *txdb,
bool alreadySaved,
mtime_t ts,
const uint8 *buf,
size_t len,
const uint256 *txHash,
const uint256 *blkHash,
bool *relevant)
{
struct tx_entry *txe;
char hashStr[80];
int res;
ASSERT(txHash);
ASSERT(relevant);
*relevant = 0;
/*
* We always store the tx in the memory pool, that way we know quickly
* whether we've already seen it.
*/
res = txdb_add_to_hashtable(txdb, buf, len, txHash, blkHash, ts, &txe);
if (res) {
NOT_TESTED();
return res;
}
uint256_snprintf_reverse(hashStr, sizeof hashStr, txHash);
txdb_process_tx_entry(txdb, txHash, blkHash, &txe->tx, &txe->relevant);
if (txe->relevant == 0) {
Warning(LGPFX" tx %s not relevant (%u)\n",
hashStr, hashtable_getnumentries(txdb->hash_tx));
return 0;
}
if (alreadySaved) {
return 0;
}
/*
* OK -- this transaction is relevant to our wallet.
*/
*relevant = 1;
Warning(LGPFX" tx %s ok (%u)\n", hashStr, hashtable_getnumentries(txdb->hash_tx));
res = txdb_save_tx(txdb, blkHash, txHash, ts, buf, len);
if (res == 0) {
txdb->tx_seq++;
}
txdb_export_tx_info(txdb);
if (bitc_state_ready()) {
int64 value = txdb_get_tx_credit(&txe->tx) - txdb_get_tx_debit(&txe->tx);
bitcui_set_status("New payment %s: %.8f BTC",
value > 0 ? "received" : "made",
1.0 * value / ONE_BTC);
}
return res;
}