1 files changed, 54 insertions, 0 deletions
diff --git a/src/hid_core/resources/shared_memory_holder.cpp b/src/hid_core/resources/shared_memory_holder.cpp
new file mode 100644
index 000000000..ada593d8b
--- /dev/null
+++ b/src/hid_core/resources/shared_memory_holder.cpp
@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/core.h"
+#include "core/hle/kernel/k_shared_memory.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/shared_memory_format.h"
+#include "hid_core/resources/shared_memory_holder.h"
+
+namespace Service::HID {
+SharedMemoryHolder::SharedMemoryHolder() {}
+
+SharedMemoryHolder::~SharedMemoryHolder() {
+    Finalize();
+}
+
+Result SharedMemoryHolder::Initialize(Core::System& system) {
+    shared_memory = Kernel::KSharedMemory::Create(system.Kernel());
+    const Result result = shared_memory->Initialize(
+        system.DeviceMemory(), nullptr, Kernel::Svc::MemoryPermission::None,
+        Kernel::Svc::MemoryPermission::Read, sizeof(SharedMemoryFormat));
+    if (result.IsError()) {
+        return result;
+    }
+    Kernel::KSharedMemory::Register(system.Kernel(), shared_memory);
+
+    is_created = true;
+    is_mapped = true;
+    address = std::construct_at(reinterpret_cast<SharedMemoryFormat*>(shared_memory->GetPointer()));
+    return ResultSuccess;
+}
+
+void SharedMemoryHolder::Finalize() {
+    if (address != nullptr) {
+        shared_memory->Close();
+    }
+    is_created = false;
+    is_mapped = false;
+    address = nullptr;
+}
+
+bool SharedMemoryHolder::IsMapped() {
+    return is_mapped;
+}
+
+SharedMemoryFormat* SharedMemoryHolder::GetAddress() {
+    return address;
+}
+
+Kernel::KSharedMemory* SharedMemoryHolder::GetHandle() {
+    return shared_memory;
+}
+} // namespace Service::HID