uid_t YChatDB::addUser(const string& username, const string& password) {
Storage* uind_store = get_user_index_table();
Storage* user_store = get_user_table();
if (uind_store == NULL || user_store == NULL) return 0;
Transaction txn;
uid_t uid = 0;
try {
if (!inc_and_get_curr_max_uid(uind_store, txn, uid)) {
txn.abort();
return 0;
}
OctetsStream key, value;
key << username, value << password << uid;
uind_store->insert(key, value, txn);
User user(uid, username);
OctetsStream key2, value2;
key2 << uid, value2 << user.toString();
user_store->insert(key2, value2, txn);
} catch (...) {
txn.abort();
return 0;
}
return uid;
}
bool JsonDbBtree::getOne(const QByteArray &key, QByteArray *value)
{
bool inTransaction = mBtree->isWriting();
Transaction *txn = inTransaction ? mBtree->writeTransaction() : mBtree->beginWrite();
bool ok = txn->get(key, value);
if (!inTransaction)
txn->abort();
return ok;
}
