public function executeWithLockedSend(Send $send, callable $func, $timeout = 60)
{
return DB::transaction(function () use($send, $func, $timeout) {
return RecordLock::acquireAndExecute('xchain.send' . $send['id'], function () use($send, $func) {
$locked_send = Send::where('id', $send['id'])->first();
$out = $func($locked_send);
// update $send in memory from any changes made to $locked_send
$send->setRawAttributes($locked_send->getAttributes());
return $out;
}, $timeout);
});
}
public function close(PaymentAddress $payment_address, $from, $to, APICall $api_call)
{
RecordLock::acquireAndExecute($payment_address['uuid'], function () use($payment_address, $from, $to, $api_call) {
return DB::transaction(function () use($payment_address, $from, $to, $api_call) {
// from account
$from_account = $this->account_repository->findByName($from, $payment_address['id']);
if (!$from_account) {
throw new AccountException('ERR_FROM_ACCOUNT_NOT_FOUND', 404, "unable to find `from` account");
}
// check for unconfirmed or sending funds
$all_balances_by_asset = $this->ledger_entry_repository->accountBalancesByAsset($from_account, null);
if (isset($all_balances_by_asset['unconfirmed'])) {
foreach ($all_balances_by_asset['unconfirmed'] as $asset => $quantity) {
if ($quantity > 0) {
throw new AccountException('ERR_ACCOUNT_HAS_UNCONFIRMED_FUNDS', 400, "Cannot close an account with unconfirmed funds");
}
}
}
if (isset($all_balances_by_asset['sending'])) {
foreach ($all_balances_by_asset['sending'] as $asset => $quantity) {
if ($quantity > 0) {
throw new AccountException('ERR_ACCOUNT_HAS_SENDING_FUNDS', 400, "Cannot close an account with sending funds");
}
}
}
// to account
$to_account = $this->account_repository->findByName($to, $payment_address['id']);
if (!$to_account) {
// create one
$to_account = $this->account_repository->create(['name' => $to, 'payment_address_id' => $payment_address['id'], 'user_id' => $payment_address['user_id']]);
}
// move all balances
// accountBalancesByAsset
foreach ($all_balances_by_asset as $type_string => $balances) {
$type = LedgerEntry::typeStringToInteger($type_string);
$txid = null;
foreach ($balances as $asset => $quantity) {
if ($quantity < 0) {
throw new Exception("Attempt to transfer negative quantity for account {$from_account['name']} ({$from_account['uuid']})", 1);
}
if ($quantity > 0) {
$this->ledger_entry_repository->transfer($quantity, $asset, $from_account, $to_account, $type, $txid, $api_call);
}
}
}
// close the account
$this->account_repository->update($from_account, ['active' => false]);
// done
return;
});
}, self::SEND_LOCK_TIMEOUT);
}
