gsys: Add Model, ModelAccessKey and ModelUnit stubs

lib/gsys/src/gsys/gsysModelAccessKey.cpp

@@ -0,0 +1,61 @@
+#include "gsys/gsysModelAccessKey.h"
+#include <basis/seadRawPrint.h>
+#include <prim/seadMemUtil.h>
+#include <prim/seadScopedLock.h>
+#include "gsys/gsysModel.h"
+
+namespace gsys {
+
+IModelAccesssHandle::IModelAccesssHandle() = default;
+
+IModelAccesssHandle::~IModelAccesssHandle() {
+    ;
+}
+
+bool IModelAccesssHandle::search(const Model* p_model, const sead::SafeString& name) {
+    SEAD_ASSERT(p_model != nullptr);
+    SEAD_ASSERT_MSG(!sead::MemUtil::isStack(name.cstr()), "String[%s] is on stack.", name.cstr());
+
+    if (mModel != p_model) {
+        remove();
+        p_model->add_(this);
+        mModel = p_model;
+    }
+
+    mName = name;
+    return search();
+}
+
+void IModelAccesssHandle::remove() {
+    if (!mModel)
+        return;
+
+    auto lock = sead::makeScopedLock(mModel->getCS());
+    if (!mListNode.isLinked())
+        return;
+
+    SEAD_ASSERT(mModel != nullptr);
+    mModel->remove_(this);
+    mModel = nullptr;
+    removeImpl_();
+}
+
+bool IModelAccesssHandle::search() {
+    if (!mListNode.isLinked())
+        return false;
+
+    SEAD_ASSERT(mModel != nullptr);
+    return searchImpl_();
+}
+
+BoneAccessKeyEx::BoneAccessKeyEx() = default;
+
+BoneAccessKeyEx::~BoneAccessKeyEx() {
+    remove();
+}
+
+void BoneAccessKeyEx::removeImpl_() {
+    mKey.reset();
+}
+
+}  // namespace gsys