hle: nvflinger: Add implementation for HosBinderDriverServer service.

src/core/CMakeLists.txt

@@ -553,6 +553,8 @@ add_library(core STATIC
     hle/service/nvflinger/consumer_listener.h
     hle/service/nvflinger/graphic_buffer_producer.cpp
     hle/service/nvflinger/graphic_buffer_producer.h
+    hle/service/nvflinger/hos_binder_driver_server.cpp
+    hle/service/nvflinger/hos_binder_driver_server.h
     hle/service/nvflinger/nvflinger.cpp
     hle/service/nvflinger/nvflinger.h
     hle/service/nvflinger/parcel.h

src/core/hle/service/nvflinger/hos_binder_driver_server.cpp

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#include <mutex>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/hos_binder_driver_server.h"
+
+namespace Service::NVFlinger {
+
+HosBinderDriverServer::HosBinderDriverServer(Core::System& system_)
+    : service_context(system_, "HosBinderDriverServer") {}
+
+HosBinderDriverServer::~HosBinderDriverServer() {}
+
+u64 HosBinderDriverServer::RegisterProducer(std::unique_ptr<android::IBinder>&& binder) {
+    std::lock_guard lk{lock};
+
+    last_id++;
+
+    producers[last_id] = std::move(binder);
+
+    return last_id;
+}
+
+android::IBinder* HosBinderDriverServer::TryGetProducer(u64 id) {
+    std::lock_guard lk{lock};
+
+    if (auto search = producers.find(id); search != producers.end()) {
+        return search->second.get();
+    }
+
+    return {};
+}
+
+} // namespace Service::NVFlinger

src/core/hle/service/nvflinger/hos_binder_driver_server.h

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#pragma once
+
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nvflinger/binder.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::NVFlinger {
+
+class HosBinderDriverServer final {
+public:
+    explicit HosBinderDriverServer(Core::System& system_);
+    ~HosBinderDriverServer();
+
+    u64 RegisterProducer(std::unique_ptr<android::IBinder>&& binder);
+
+    android::IBinder* TryGetProducer(u64 id);
+
+private:
+    KernelHelpers::ServiceContext service_context;
+
+    std::unordered_map<u64, std::unique_ptr<android::IBinder>> producers;
+    std::mutex lock;
+    u64 last_id{};
+};
+
+} // namespace Service::NVFlinger