LibCore+LibIPC: Move SystemServerTakeover.{h,cpp} to LibCore

This functionality is required by Core::LocalServer and LibIPC depends
on LibCore.

take_over_accepted_socket_from_system_server has also been renamed to
take_over_socket_from_system_server as the socket need not be accepted
before taking it over. :^)

Userland/Libraries/LibCore/CMakeLists.txt

@@ -32,6 +32,7 @@ set(SOURCES
     Stream.cpp
     StandardPaths.cpp
     System.cpp
+    SystemServerTakeover.cpp
     TCPServer.cpp
     TCPSocket.cpp
     TempFile.cpp

Userland/Libraries/LibCore/SystemServerTakeover.cpp

@@ -7,10 +7,12 @@
 #include "SystemServerTakeover.h"
 #include <LibCore/System.h>
 
+namespace Core {
+
 HashMap<String, int> s_overtaken_sockets {};
 bool s_overtaken_sockets_parsed { false };
 
-void parse_sockets_from_system_server()
+static void parse_sockets_from_system_server()
 {
     VERIFY(!s_overtaken_sockets_parsed);
 
@@ -32,7 +34,7 @@ void parse_sockets_from_system_server()
     unsetenv(socket_takeover);
 }
 
-ErrorOr<NonnullOwnPtr<Core::Stream::LocalSocket>> take_over_accepted_socket_from_system_server(String const& socket_path)
+ErrorOr<NonnullOwnPtr<Core::Stream::LocalSocket>> take_over_socket_from_system_server(String const& socket_path)
 {
     if (!s_overtaken_sockets_parsed)
         parse_sockets_from_system_server();
@@ -63,3 +65,5 @@ ErrorOr<NonnullOwnPtr<Core::Stream::LocalSocket>> take_over_accepted_socket_from
 
     return socket;
 }
+
+}

Userland/Libraries/LibCore/SystemServerTakeover.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2022, sin-ack <sin-ack@protonmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibCore/Stream.h>
+
+namespace Core {
+
+ErrorOr<NonnullOwnPtr<Core::Stream::LocalSocket>> take_over_socket_from_system_server(String const& socket_path = {});
+
+}

Userland/Libraries/LibIPC/CMakeLists.txt

@@ -4,7 +4,6 @@ set(SOURCES
     Encoder.cpp
     Message.cpp
     Stub.cpp
-    SystemServerTakeover.cpp
 )
 
 serenity_lib(LibIPC ipc)

Userland/Libraries/LibIPC/SingleServer.h

@@ -7,15 +7,15 @@
 #pragma once
 
 #include <LibCore/System.h>
+#include <LibCore/SystemServerTakeover.h>
 #include <LibIPC/ClientConnection.h>
-#include <LibIPC/SystemServerTakeover.h>
 
 namespace IPC {
 
 template<typename ClientConnectionType>
 ErrorOr<NonnullRefPtr<ClientConnectionType>> take_over_accepted_client_from_system_server()
 {
-    auto socket = TRY(take_over_accepted_socket_from_system_server());
+    auto socket = TRY(Core::take_over_socket_from_system_server());
     return IPC::new_client_connection<ClientConnectionType>(move(socket));
 }
 

Userland/Libraries/LibIPC/SystemServerTakeover.h

@@ -1,12 +0,0 @@
-/*
- * Copyright (c) 2022, sin-ack <sin-ack@protonmail.com>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-#include <LibCore/Stream.h>
-
-void parse_sockets_from_system_server();
-ErrorOr<NonnullOwnPtr<Core::Stream::LocalSocket>> take_over_accepted_socket_from_system_server(String const& socket_path = {});