/**************************************************************************/ /* thread_jandroid.cpp */ /**************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /**************************************************************************/ /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /**************************************************************************/ #include "thread_jandroid.h" #include "core/os/thread.h" #include <android/log.h> static JavaVM *java_vm = nullptr; static thread_local JNIEnv *env = nullptr; // The logic here need to improve, init_thread/term_tread are designed to work with Thread::callback // Calling init_thread from setup_android_thread and get_jni_env to setup an env we're keeping and not detaching // could cause issues on app termination. // // We should be making sure that any thread started calls a nice cleanup function when it's done, // especially now that we use many more threads. static void init_thread() { if (env) { // thread never detached! just keep using... return; } java_vm->AttachCurrentThread(&env, nullptr); } static void term_thread() { java_vm->DetachCurrentThread(); // this is no longer valid, must called init_thread to re-establish env = nullptr; } void init_thread_jandroid(JavaVM *p_jvm, JNIEnv *p_env) { java_vm = p_jvm; env = p_env; Thread::_set_platform_functions({ .init = init_thread, .term = &term_thread }); } void setup_android_thread() { if (!env) { // !BAS! see remarks above init_thread(); } } JNIEnv *get_jni_env() { if (!env) { // !BAS! see remarks above init_thread(); } return env; }