From b3a43430aa1e6ac33025d86cde777e79be30ef99 Mon Sep 17 00:00:00 2001 From: Bastiaan Olij Date: Tue, 9 Mar 2021 21:19:57 +1100 Subject: Fixes on android: - creating Vulkan context instead of OpenGL - checking for validity of ENV in wrapper classes - fix for access to JavaVM from threads --- platform/android/thread_jandroid.cpp | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) (limited to 'platform/android/thread_jandroid.cpp') diff --git a/platform/android/thread_jandroid.cpp b/platform/android/thread_jandroid.cpp index afcc7294f2..ba379c8d43 100644 --- a/platform/android/thread_jandroid.cpp +++ b/platform/android/thread_jandroid.cpp @@ -30,17 +30,34 @@ #include "thread_jandroid.h" +#include + #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DetachCurrentThread(); + + // this is no longer valid, must called init_thread to re-establish + env = nullptr; } void init_thread_jandroid(JavaVM *p_jvm, JNIEnv *p_env) { @@ -50,9 +67,17 @@ void init_thread_jandroid(JavaVM *p_jvm, JNIEnv *p_env) { } void setup_android_thread() { - init_thread(); + if (!env) { + // !BAS! see remarks above + init_thread(); + } } JNIEnv *get_jni_env() { + if (!env) { + // !BAS! see remarks above + init_thread(); + } + return env; } -- cgit v1.2.3