////////////////////////////////////////////////////////////////////////////
//
// Copyright 2017 Realm Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////

#ifndef REALM_OS_BINDING_CALLBACK_THREAD_OBSERVER_HPP
#define REALM_OS_BINDING_CALLBACK_THREAD_OBSERVER_HPP

#include <exception>

namespace realm {
// Interface for bindings interested in registering callbacks before/after the ObjectStore thread runs.
// This is for example helpful to attach/detach the pthread to the JavaVM in order to be able to perform JNI calls.
class BindingCallbackThreadObserver {
public:
    // This method is called just before the thread is started
    virtual void did_create_thread() = 0;

    // This method is called just before the thread is being destroyed
    virtual void will_destroy_thread() = 0;

    // This method is called with any exception throws by client.run().
    virtual void handle_error(std::exception const& e) = 0;
};

extern BindingCallbackThreadObserver* g_binding_callback_thread_observer;
}

#endif // REALM_OS_BINDING_CALLBACK_THREAD_OBSERVER_HPP