Shuffling kernel util types to util/.

src/xenia/kernel/util/object_table.h

@@ -0,0 +1,81 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_KERNEL_UTIL_OBJECT_TABLE_H_
+#define XENIA_KERNEL_UTIL_OBJECT_TABLE_H_
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "xenia/base/mutex.h"
+#include "xenia/kernel/xobject.h"
+#include "xenia/xbox.h"
+
+namespace xe {
+namespace kernel {
+namespace util {
+
+class ObjectTable {
+ public:
+  ObjectTable();
+  ~ObjectTable();
+
+  void Reset();
+
+  X_STATUS AddHandle(XObject* object, X_HANDLE* out_handle);
+  X_STATUS DuplicateHandle(X_HANDLE orig, X_HANDLE* out_handle);
+  X_STATUS RetainHandle(X_HANDLE handle);
+  X_STATUS ReleaseHandle(X_HANDLE handle);
+  X_STATUS RemoveHandle(X_HANDLE handle);
+
+  template <typename T>
+  object_ref<T> LookupObject(X_HANDLE handle) {
+    auto object = LookupObject(handle, false);
+    auto result = object_ref<T>(reinterpret_cast<T*>(object));
+    return result;
+  }
+
+  X_STATUS AddNameMapping(const std::string& name, X_HANDLE handle);
+  void RemoveNameMapping(const std::string& name);
+  X_STATUS GetObjectByName(const std::string& name, X_HANDLE* out_handle);
+  template <typename T>
+  std::vector<object_ref<T>> GetObjectsByType(XObject::Type type) {
+    std::vector<object_ref<T>> results;
+    GetObjectsByType(
+        type, reinterpret_cast<std::vector<object_ref<XObject>>*>(&results));
+    return results;
+  }
+
+ private:
+  typedef struct {
+    int handle_ref_count = 0;
+    XObject* object = nullptr;
+  } ObjectTableEntry;
+
+  ObjectTableEntry* LookupTable(X_HANDLE handle);
+  XObject* LookupObject(X_HANDLE handle, bool already_locked);
+  void GetObjectsByType(XObject::Type type,
+                        std::vector<object_ref<XObject>>* results);
+
+  X_HANDLE TranslateHandle(X_HANDLE handle);
+  X_STATUS FindFreeSlot(uint32_t* out_slot);
+
+  xe::global_critical_region global_critical_region_;
+  uint32_t table_capacity_ = 0;
+  ObjectTableEntry* table_ = nullptr;
+  uint32_t last_free_entry_ = 0;
+  std::unordered_map<std::string, X_HANDLE> name_table_;
+};
+
+}  // namespace util
+}  // namespace kernel
+}  // namespace xe
+
+#endif  // XENIA_KERNEL_UTIL_OBJECT_TABLE_H_