Function GetBerkeleyEnv

src/wallet/bdb.cpp:63–73

* @param[in] env_directory Path to environment directory * @return A shared pointer to the BerkeleyEnvironment object for the wallet directory, never empty because ~BerkeleyEnvironment * erases the weak pointer from the g_dbenvs map. * @post A new BerkeleyEnvironment weak pointer is inserted into g_dbenvs if the directory path key was not already in the map. */

 * @post A new BerkeleyEnvironment weak pointer is inserted into g_dbenvs if the directory path key was not already in the map.
 */
std::shared_ptr<BerkeleyEnvironment> GetBerkeleyEnv(const fs::path& env_directory)
{
    LOCK(cs_db);
    auto inserted = g_dbenvs.emplace(fs::PathToString(env_directory), std::weak_ptr<BerkeleyEnvironment>());
    if (inserted.second) {
        auto env = std::make_shared<BerkeleyEnvironment>(env_directory);
        inserted.first->second = env;
        return env;
    }
    return inserted.first->second.lock();
}

//
// BerkeleyBatch