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Implement Exceptional Signal Handler + Fix Destruction Behavior

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An exceptional signal handler allows us to convert an OS signal into a C++ exception, this allows us to alleviate a lot of crashes that would otherwise occur from signals being thrown during execution of games and be able to handle them gracefully.
This commit is contained in:
◱ PixelyIon
2020-11-03 15:14:09 +05:30
committed by ◱ PixelyIon
parent 3cde568c51
commit 668f623256
45 changed files with 692 additions and 312 deletions
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15
app/src/main/cpp/skyline/jvm.cpp
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@ -8,18 +8,19 @@ namespace skyline {
* @brief A thread-local wrapper over JNIEnv and JavaVM which automatically handles attaching and detaching threads
*/
struct JniEnvironment {
static inline JNIEnv *env{};
JNIEnv *env{};
static inline JavaVM *vm{};
bool attached{};
JniEnvironment(JNIEnv *environment) {
void Initialize(JNIEnv *environment) {
env = environment;
if (env->GetJavaVM(&vm) < 0)
throw exception("Cannot get JavaVM from environment");
attached = true;
}
JniEnvironment() {
if (vm) {
if (vm && !attached) {
vm->AttachCurrentThread(&env, nullptr);
attached = true;
}
@ -31,10 +32,14 @@ namespace skyline {
}
operator JNIEnv *() {
if (!attached)
throw exception("Not attached");
return env;
}
JNIEnv* operator->() {
JNIEnv *operator->() {
if (!attached)
throw exception("Not attached");
return env;
}
};
@ -42,7 +47,7 @@ namespace skyline {
thread_local inline JniEnvironment env;
JvmManager::JvmManager(JNIEnv *environ, jobject instance) : instance(environ->NewGlobalRef(instance)), instanceClass(reinterpret_cast<jclass>(environ->NewGlobalRef(environ->GetObjectClass(instance)))), initializeControllersId(environ->GetMethodID(instanceClass, "initializeControllers", "()V")), vibrateDeviceId(environ->GetMethodID(instanceClass, "vibrateDevice", "(I[J[I)V")), clearVibrationDeviceId(environ->GetMethodID(instanceClass, "clearVibrationDevice", "(I)V")) {
env = JniEnvironment(environ);
env.Initialize(environ);
}
JvmManager::~JvmManager() {