1 files changed, 183 insertions, 0 deletions
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
new file mode 100644
index 000000000..3f15da0ac
--- /dev/null
+++ b/src/core/hle/kernel/kernel.h
@@ -0,0 +1,183 @@
+// Copyright 2014 Citra Emulator Project / PPSSPP Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#pragma once
+
+#include "common/common.h"
+
+typedef u32 Handle;
+typedef s32 Result;
+
+namespace Kernel {
+
+enum KernelHandle {
+    CurrentThread   = 0xFFFF8000,
+    CurrentProcess  = 0xFFFF8001,
+};
+
+enum class HandleType : u32 {
+    Unknown         = 0,
+    Port            = 1,
+    Service         = 2,
+    Event           = 3,
+    Mutex           = 4,
+    SharedMemory    = 5,
+    Redirection     = 6,
+    Thread          = 7,
+    Process         = 8,
+    Arbiter         = 9,
+    File            = 10,
+    Semaphore       = 11,
+};
+    
+enum {
+    MAX_NAME_LENGTH     = 0x100,
+    DEFAULT_STACK_SIZE  = 0x4000,
+};
+
+class ObjectPool;
+
+class Object : NonCopyable {
+    friend class ObjectPool;
+    u32 handle;
+public:
+    virtual ~Object() {}
+    Handle GetHandle() const { return handle; }
+    virtual const char* GetTypeName() const { return "[BAD KERNEL OBJECT TYPE]"; }
+    virtual const char* GetName() const { return "[UNKNOWN KERNEL OBJECT]"; }
+    virtual Kernel::HandleType GetHandleType() const = 0;
+
+    /**
+     * Synchronize kernel object 
+     * @param wait Boolean wait set if current thread should wait as a result of sync operation
+     * @return Result of operation, 0 on success, otherwise error code
+     */
+    virtual Result SyncRequest(bool* wait) {
+        ERROR_LOG(KERNEL, "(UNIMPLEMENTED)");
+        return -1;
+    }
+
+    /**
+     * Wait for kernel object to synchronize
+     * @param wait Boolean wait set if current thread should wait as a result of sync operation
+     * @return Result of operation, 0 on success, otherwise error code
+     */
+    virtual Result WaitSynchronization(bool* wait) = 0;
+};
+
+class ObjectPool : NonCopyable {
+public:
+    ObjectPool();
+    ~ObjectPool() {}
+
+    // Allocates a handle within the range and inserts the object into the map.
+    Handle Create(Object* obj, int range_bottom=INITIAL_NEXT_ID, int range_top=0x7FFFFFFF);
+
+    static Object* CreateByIDType(int type);
+
+    template <class T>
+    u32 Destroy(Handle handle) {
+        u32 error;
+        if (Get<T>(handle, error)) {
+            occupied[handle - HANDLE_OFFSET] = false;
+            delete pool[handle - HANDLE_OFFSET];
+        }
+        return error;
+    };
+
+    bool IsValid(Handle handle);
+
+    template <class T>
+    T* Get(Handle handle, u32& outError) {
+        if (handle < HANDLE_OFFSET || handle >= HANDLE_OFFSET + MAX_COUNT || !occupied[handle - HANDLE_OFFSET]) {
+            // Tekken 6 spams 0x80020001 gets wrong with no ill effects, also on the real PSP
+            if (handle != 0 && (u32)handle != 0x80020001) {
+                WARN_LOG(KERNEL, "Kernel: Bad object handle %i (%08x)", handle, handle);
+            }
+            outError = 0;//T::GetMissingErrorCode();
+            return 0;
+        } else {
+            // Previously we had a dynamic_cast here, but since RTTI was disabled traditionally,
+            // it just acted as a static case and everything worked. This means that we will never
+            // see the Wrong type object error below, but we'll just have to live with that danger.
+            T* t = static_cast<T*>(pool[handle - HANDLE_OFFSET]);
+            if (t == 0 || t->GetHandleType() != T::GetStaticHandleType()) {
+                WARN_LOG(KERNEL, "Kernel: Wrong object type for %i (%08x)", handle, handle);
+                outError = 0;//T::GetMissingErrorCode();
+                return 0;
+            }
+            outError = 0;//SCE_KERNEL_ERROR_OK;
+            return t;
+        }
+    }
+
+    // ONLY use this when you know the handle is valid.
+    template <class T>
+    T *GetFast(Handle handle) {
+        const Handle realHandle = handle - HANDLE_OFFSET;
+        _dbg_assert_(KERNEL, realHandle >= 0 && realHandle < MAX_COUNT && occupied[realHandle]);
+        return static_cast<T*>(pool[realHandle]);
+    }
+
+    template <class T, typename ArgT>
+    void Iterate(bool func(T*, ArgT), ArgT arg) {
+        int type = T::GetStaticIDType();
+        for (int i = 0; i < MAX_COUNT; i++)
+        {
+            if (!occupied[i])
+                continue;
+            T* t = static_cast<T*>(pool[i]);
+            if (t->GetIDType() == type) {
+                if (!func(t, arg))
+                    break;
+            }
+        }
+    }
+
+    bool GetIDType(Handle handle, HandleType* type) const {
+        if ((handle < HANDLE_OFFSET) || (handle >= HANDLE_OFFSET + MAX_COUNT) || 
+            !occupied[handle - HANDLE_OFFSET]) {
+            ERROR_LOG(KERNEL, "Kernel: Bad object handle %i (%08x)", handle, handle);
+            return false;
+        }
+        Object* t = pool[handle - HANDLE_OFFSET];
+        *type = t->GetHandleType();
+        return true;
+    }
+
+    Object* &operator [](Handle handle);
+    void List();
+    void Clear();
+    int GetCount();
+
+private:
+    
+    enum {
+        MAX_COUNT       = 0x1000,
+        HANDLE_OFFSET   = 0x100,
+        INITIAL_NEXT_ID = 0x10,
+    };
+
+    Object* pool[MAX_COUNT];
+    bool    occupied[MAX_COUNT];
+    int     next_id;
+};
+
+extern ObjectPool g_object_pool;
+extern Handle g_main_thread;
+
+/// Initialize the kernel
+void Init();
+
+/// Shutdown the kernel
+void Shutdown();
+
+/**
+ * Loads executable stored at specified address
+ * @entry_point Entry point in memory of loaded executable
+ * @return True on success, otherwise false
+ */
+bool LoadExec(u32 entry_point);
+
+} // namespace