1 files changed, 9 insertions, 172 deletions

diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 94f2025a0..9cf288b08 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -4,26 +4,16 @@
 
 #pragma once
 
-#include <algorithm>
-#include <array>
 #include <cstddef>
 #include <string>
-#include <vector>
+#include <utility>
 #include <boost/smart_ptr/intrusive_ptr.hpp>
 #include "common/common_types.h"
-#include "core/hle/result.h"
 
 namespace Kernel {
 
 using Handle = u32;
 
-class Thread;
-
-enum KernelHandle : Handle {
-    CurrentThread = 0xFFFF8000,
-    CurrentProcess = 0xFFFF8001,
-};
-
 enum class HandleType : u32 {
     Unknown,
     Event,
@@ -121,170 +111,17 @@ inline void intrusive_ptr_release(Object* object) {
 template <typename T>
 using SharedPtr = boost::intrusive_ptr<T>;
 
-/// Class that represents a Kernel object that a thread can be waiting on
-class WaitObject : public Object {
-public:
-    /**
-     * Check if the specified thread should wait until the object is available
-     * @param thread The thread about which we're deciding.
-     * @return True if the current thread should wait due to this object being unavailable
-     */
-    virtual bool ShouldWait(Thread* thread) const = 0;
-
-    /// Acquire/lock the object for the specified thread if it is available
-    virtual void Acquire(Thread* thread) = 0;
-
-    /**
-     * Add a thread to wait on this object
-     * @param thread Pointer to thread to add
-     */
-    virtual void AddWaitingThread(SharedPtr<Thread> thread);
-
-    /**
-     * Removes a thread from waiting on this object (e.g. if it was resumed already)
-     * @param thread Pointer to thread to remove
-     */
-    virtual void RemoveWaitingThread(Thread* thread);
-
-    /**
-     * Wake up all threads waiting on this object that can be awoken, in priority order,
-     * and set the synchronization result and output of the thread.
-     */
-    virtual void WakeupAllWaitingThreads();
-
-    /// Obtains the highest priority thread that is ready to run from this object's waiting list.
-    SharedPtr<Thread> GetHighestPriorityReadyThread();
-
-    /// Get a const reference to the waiting threads list for debug use
-    const std::vector<SharedPtr<Thread>>& GetWaitingThreads() const;
-
-private:
-    /// Threads waiting for this object to become available
-    std::vector<SharedPtr<Thread>> waiting_threads;
-};
-
 /**
- * This class allows the creation of Handles, which are references to objects that can be tested
- * for validity and looked up. Here they are used to pass references to kernel objects to/from the
- * emulated process. it has been designed so that it follows the same handle format and has
- * approximately the same restrictions as the handle manager in the CTR-OS.
- *
- * Handles contain two sub-fields: a slot index (bits 31:15) and a generation value (bits 14:0).
- * The slot index is used to index into the arrays in this class to access the data corresponding
- * to the Handle.
- *
- * To prevent accidental use of a freed Handle whose slot has already been reused, a global counter
- * is kept and incremented every time a Handle is created. This is the Handle's "generation". The
- * value of the counter is stored into the Handle as well as in the handle table (in the
- * "generations" array). When looking up a handle, the Handle's generation must match with the
- * value stored on the class, otherwise the Handle is considered invalid.
- *
- * To find free slots when allocating a Handle without needing to scan the entire object array, the
- * generations field of unallocated slots is re-purposed as a linked list of indices to free slots.
- * When a Handle is created, an index is popped off the list and used for the new Handle. When it
- * is destroyed, it is again pushed onto the list to be re-used by the next allocation. It is
- * likely that this allocation strategy differs from the one used in CTR-OS, but this hasn't been
- * verified and isn't likely to cause any problems.
+ * Attempts to downcast the given Object pointer to a pointer to T.
+ * @return Derived pointer to the object, or `nullptr` if `object` isn't of type T.
  */
-class HandleTable final : NonCopyable {
-public:
-    HandleTable();
-
-    /**
-     * Allocates a handle for the given object.
-     * @return The created Handle or one of the following errors:
-     *           - `ERR_OUT_OF_HANDLES`: the maximum number of handles has been exceeded.
-     */
-    ResultVal<Handle> Create(SharedPtr<Object> obj);
-
-    /**
-     * Returns a new handle that points to the same object as the passed in handle.
-     * @return The duplicated Handle or one of the following errors:
-     *           - `ERR_INVALID_HANDLE`: an invalid handle was passed in.
-     *           - Any errors returned by `Create()`.
-     */
-    ResultVal<Handle> Duplicate(Handle handle);
-
-    /**
-     * Closes a handle, removing it from the table and decreasing the object's ref-count.
-     * @return `RESULT_SUCCESS` or one of the following errors:
-     *           - `ERR_INVALID_HANDLE`: an invalid handle was passed in.
-     */
-    ResultCode Close(Handle handle);
-
-    /// Checks if a handle is valid and points to an existing object.
-    bool IsValid(Handle handle) const;
-
-    /**
-     * Looks up a handle.
-     * @return Pointer to the looked-up object, or `nullptr` if the handle is not valid.
-     */
-    SharedPtr<Object> GetGeneric(Handle handle) const;
-
-    /**
-     * Looks up a handle while verifying its type.
-     * @return Pointer to the looked-up object, or `nullptr` if the handle is not valid or its
-     *         type differs from the handle type `T::HANDLE_TYPE`.
-     */
-    template <class T>
-    SharedPtr<T> Get(Handle handle) const {
-        SharedPtr<Object> object = GetGeneric(handle);
-        if (object != nullptr && object->GetHandleType() == T::HANDLE_TYPE) {
-            return boost::static_pointer_cast<T>(std::move(object));
-        }
-        return nullptr;
-    }
-
-    /**
-     * Looks up a handle while verifying that it is an object that a thread can wait on
-     * @return Pointer to the looked-up object, or `nullptr` if the handle is not valid or it is
-     *         not a waitable object.
-     */
-    SharedPtr<WaitObject> GetWaitObject(Handle handle) const {
-        SharedPtr<Object> object = GetGeneric(handle);
-        if (object != nullptr && object->IsWaitable()) {
-            return boost::static_pointer_cast<WaitObject>(std::move(object));
-        }
-        return nullptr;
-    }
-
-    /// Closes all handles held in this table.
-    void Clear();
-
-private:
-    /**
-     * This is the maximum limit of handles allowed per process in CTR-OS. It can be further
-     * reduced by ExHeader values, but this is not emulated here.
-     */
-    static const size_t MAX_COUNT = 4096;
-
-    static u16 GetSlot(Handle handle) {
-        return handle >> 15;
-    }
-    static u16 GetGeneration(Handle handle) {
-        return handle & 0x7FFF;
+template <typename T>
+inline SharedPtr<T> DynamicObjectCast(SharedPtr<Object> object) {
+    if (object != nullptr && object->GetHandleType() == T::HANDLE_TYPE) {
+        return boost::static_pointer_cast<T>(std::move(object));
     }
-
-    /// Stores the Object referenced by the handle or null if the slot is empty.
-    std::array<SharedPtr<Object>, MAX_COUNT> objects;
-
-    /**
-     * The value of `next_generation` when the handle was created, used to check for validity. For
-     * empty slots, contains the index of the next free slot in the list.
-     */
-    std::array<u16, MAX_COUNT> generations;
-
-    /**
-     * Global counter of the number of created handles. Stored in `generations` when a handle is
-     * created, and wraps around to 1 when it hits 0x8000.
-     */
-    u16 next_generation;
-
-    /// Head of the free slots linked list.
-    u16 next_free_slot;
-};
-
-extern HandleTable g_handle_table;
+    return nullptr;
+}
 
 /// Initialize the kernel with the specified system mode.
 void Init(u32 system_mode);