kernel: Add basic support for Domain object.

src/core/hle/kernel/domain.cpp

@@ -0,0 +1,44 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/hle/kernel/client_port.h"
+#include "core/hle/kernel/domain.h"
+#include "core/hle/kernel/handle_table.h"
+#include "core/hle/kernel/hle_ipc.h"
+#include "core/hle/kernel/process.h"
+#include "core/hle/kernel/session.h"
+#include "core/hle/kernel/thread.h"
+
+namespace Kernel {
+
+ResultVal<SharedPtr<Domain>> Domain::Create(std::string name) {
+    SharedPtr<Domain> domain(new Domain);
+    domain->name = std::move(name);
+    return MakeResult(std::move(domain));
+}
+
+ResultVal<SharedPtr<Domain>> Domain::CreateFromSession(const Session& session) {
+    auto res = Create(session.port->GetName() + "_Domain");
+    auto& domain = res.Unwrap();
+    domain->request_handlers.push_back(std::move(session.server->hle_handler));
+    Kernel::g_handle_table.ConvertSessionToDomain(session, domain);
+    return res;
+}
+
+ResultCode Domain::SendSyncRequest(SharedPtr<Thread> thread) {
+    Kernel::HLERequestContext context(this);
+    u32* cmd_buf = (u32*)Memory::GetPointer(Kernel::GetCurrentThread()->GetTLSAddress());
+    context.PopulateFromIncomingCommandBuffer(cmd_buf, *Kernel::g_current_process,
+                                              Kernel::g_handle_table);
+
+    auto& domain_message_header = context.GetDomainMessageHeader();
+    if (domain_message_header) {
+        // If there is a DomainMessageHeader, then this is CommandType "Request"
+        const u32 object_id{context.GetDomainMessageHeader()->object_id};
+        return request_handlers[object_id - 1]->HandleSyncRequest(context);
+    }
+    return request_handlers.front()->HandleSyncRequest(context);
+}
+
+} // namespace Kernel