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/*************************************************************************/
/* thread_jandroid.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 <android/log.h>
#include "core/os/thread.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_funcs(nullptr, nullptr, &init_thread, &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;
}
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