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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef LIBRETRO_THREADS_H
#define LIBRETRO_THREADS_H
/* ScummVM doesn't have a top-level main loop that we can use, so instead we run it in its own thread
* and switch between it and the main thread. Calling these function will block the current thread
* and unblock the other. Each function should be called from the other thread.
*/
void retro_switch_to_emu_thread(void);
void retro_switch_to_main_thread(void);
/* Initialize the emulation thread and any related resources.
*
* This function should be called from the main thread.
*/
bool retro_init_emu_thread(void);
/* Destroy the emulation thread and any related resources. Only call this after the emulation thread
* has finished (or canceled) and joined.
*
* This function should be called from the main thread.
*/
void retro_deinit_emu_thread(void);
/* Returns true if the emulation thread was initialized successfully.
*
* This function should be called from the main thread.
*/
bool retro_emu_thread_initialized(void);
/* Returns true if the emulation thread has exited naturally.
*
* This function can be called from either the main or the emulation thread.
*/
bool retro_emu_thread_exited(void);
/* Returns scummvm_main return code or -1 if not available */
int retro_get_scummvm_res(void);
/* Returns true if the emulation thread was started successfully.
*
* This function should be called from the main thread.
*/
bool retro_emu_thread_started(void);
#endif
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