mirror of https://git.suyu.dev/suyu/suyu
Kernel: Moved Wait and Acquire to WaitObject, added way to retrieve a WaitObject safely.
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@ -60,26 +60,34 @@ class Object : NonCopyable {
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public:
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virtual ~Object() {}
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Handle GetHandle() const { return handle; }
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virtual std::string GetTypeName() const { return "[BAD KERNEL OBJECT TYPE]"; }
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virtual std::string GetName() const { return "[UNKNOWN KERNEL OBJECT]"; }
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virtual Kernel::HandleType GetHandleType() const = 0;
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/**
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* Check if this object is available
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* @return True if the current thread should wait due to this object being unavailable
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* Check if a thread can wait on the object
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* @return True if a thread can wait on the object, otherwise false
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*/
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virtual ResultVal<bool> Wait() {
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LOG_ERROR(Kernel, "(UNIMPLEMENTED)");
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return UnimplementedFunction(ErrorModule::Kernel);
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bool IsWaitable() const {
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switch (GetHandleType()) {
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case HandleType::Event:
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case HandleType::Mutex:
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case HandleType::Thread:
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case HandleType::Semaphore:
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case HandleType::Timer:
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return true;
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case HandleType::Unknown:
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case HandleType::Port:
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case HandleType::SharedMemory:
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case HandleType::Redirection:
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case HandleType::Process:
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case HandleType::AddressArbiter:
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return false;
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}
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/**
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* Acquire/lock the this object if it is available
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* @return True if we were able to acquire this object, otherwise false
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*/
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virtual ResultVal<bool> Acquire() {
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LOG_ERROR(Kernel, "(UNIMPLEMENTED)");
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return UnimplementedFunction(ErrorModule::Kernel);
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return false;
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}
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private:
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@ -107,6 +115,24 @@ using SharedPtr = boost::intrusive_ptr<T>;
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class WaitObject : public Object {
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public:
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/**
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* Check if this object is available
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* @return True if the current thread should wait due to this object being unavailable
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*/
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virtual ResultVal<bool> Wait() {
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LOG_ERROR(Kernel, "(UNIMPLEMENTED)");
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return UnimplementedFunction(ErrorModule::Kernel);
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}
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/**
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* Acquire/lock the this object if it is available
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* @return True if we were able to acquire this object, otherwise false
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*/
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virtual ResultVal<bool> Acquire() {
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LOG_ERROR(Kernel, "(UNIMPLEMENTED)");
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return UnimplementedFunction(ErrorModule::Kernel);
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}
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/**
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* Add a thread to wait on this object
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* @param thread Pointer to thread to add
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@ -186,13 +212,13 @@ public:
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/**
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* Looks up a handle.
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* @returns Pointer to the looked-up object, or `nullptr` if the handle is not valid.
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* @return Pointer to the looked-up object, or `nullptr` if the handle is not valid.
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*/
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SharedPtr<Object> GetGeneric(Handle handle) const;
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/**
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* Looks up a handle while verifying its type.
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* @returns Pointer to the looked-up object, or `nullptr` if the handle is not valid or its
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* @return Pointer to the looked-up object, or `nullptr` if the handle is not valid or its
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* type differs from the handle type `T::HANDLE_TYPE`.
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*/
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template <class T>
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@ -204,6 +230,19 @@ public:
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return nullptr;
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}
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/**
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* Looks up a handle while verifying that it is an object that a thread can wait on
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* @return Pointer to the looked-up object, or `nullptr` if the handle is not valid or it is
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* not a waitable object.
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*/
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SharedPtr<WaitObject> GetWaitObject(Handle handle) const {
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SharedPtr<Object> object = GetGeneric(handle);
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if (object != nullptr && object->IsWaitable()) {
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return boost::static_pointer_cast<WaitObject>(std::move(object));
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}
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return nullptr;
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}
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/// Closes all handles held in this table.
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void Clear();
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@ -210,7 +210,7 @@ void WaitCurrentThread_Sleep() {
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ChangeThreadState(thread, ThreadStatus(THREADSTATUS_WAIT | (thread->status & THREADSTATUS_SUSPEND)));
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}
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void WaitCurrentThread_WaitSynchronization(WaitObject* wait_object, bool wait_all) {
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void WaitCurrentThread_WaitSynchronization(SharedPtr<WaitObject> wait_object, bool wait_all) {
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Thread* thread = GetCurrentThread();
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thread->wait_all = wait_all;
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thread->wait_address = 0;
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@ -136,7 +136,7 @@ void WaitCurrentThread_Sleep();
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* @param wait_object Kernel object that we are waiting on
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* @param wait_all If true, wait on all objects before resuming (for WaitSynchronizationN only)
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*/
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void WaitCurrentThread_WaitSynchronization(WaitObject* wait_object, bool wait_all=false);
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void WaitCurrentThread_WaitSynchronization(SharedPtr<WaitObject> wait_object, bool wait_all = false);
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/**
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* Waits the current thread from an ArbitrateAddress call
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@ -115,7 +115,7 @@ static Result CloseHandle(Handle handle) {
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/// Wait for a handle to synchronize, timeout after the specified nanoseconds
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static Result WaitSynchronization1(Handle handle, s64 nano_seconds) {
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Kernel::WaitObject* object = static_cast<Kernel::WaitObject*>(Kernel::g_handle_table.GetGeneric(handle).get());
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auto object = Kernel::g_handle_table.GetWaitObject(handle);
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if (object == nullptr)
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return InvalidHandle(ErrorModule::Kernel).raw;
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@ -163,7 +163,7 @@ static Result WaitSynchronizationN(s32* out, Handle* handles, s32 handle_count,
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if (handle_count != 0) {
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bool selected = false; // True once an object has been selected
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for (int i = 0; i < handle_count; ++i) {
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Kernel::WaitObject* object = static_cast<Kernel::WaitObject*>(Kernel::g_handle_table.GetGeneric(handles[i]).get());
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auto object = Kernel::g_handle_table.GetWaitObject(handles[i]);
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if (object == nullptr)
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return InvalidHandle(ErrorModule::Kernel).raw;
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