From 7b9012671abdbe1d3b831099ea052f5682ba82e2 Mon Sep 17 00:00:00 2001
From: wheremyfoodat <44909372+wheremyfoodat@users.noreply.github.com>
Date: Mon, 30 Oct 2023 19:01:26 +0200
Subject: [PATCH] Add libuv

---
 .gitmodules       |  6 ++++++
 CMakeLists.txt    | 11 ++++++++++-
 src/lua.cpp       |  7 +++++++
 third_party/libuv |  1 +
 third_party/luv   |  1 +
 5 files changed, 25 insertions(+), 1 deletion(-)
 create mode 160000 third_party/libuv
 create mode 160000 third_party/luv

diff --git a/.gitmodules b/.gitmodules
index 8a6cac49..93bb8f9d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -43,3 +43,9 @@
 [submodule "third_party/hydra_core"]
 	path = third_party/hydra_core
 	url = https://github.com/hydra-emu/core
+[submodule "third_party/luv"]
+	path = third_party/luv
+	url = https://github.com/luvit/luv
+[submodule "third_party/libuv"]
+	path = third_party/libuv
+	url = https://github.com/libuv/libuv
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8a718fbb..52ddb495 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -245,6 +245,15 @@ set(THIRD_PARTY_SOURCE_FILES third_party/imgui/imgui.cpp
                              third_party/xxhash/xxhash.c
 )
 
+if(ENABLE_LUAJIT)
+    # Build luv and libuv for TCP Lua server usage
+    include_directories(third_party/luv/src)
+    include_directories(third_party/luv/deps/lua-compat-5.3/c-api)
+    include_directories(third_party/libuv/include)
+    set(THIRD_PARTY_SOURCE_FILES ${THIRD_PARTY_SOURCE_FILES} third_party/luv/src/luv.c)
+
+    add_subdirectory(third_party/libuv)
+endif()
 
 if(ENABLE_QT_GUI)
     include_directories(third_party/duckstation)
@@ -399,7 +408,7 @@ endif()
 
 if(ENABLE_LUAJIT)
     target_compile_definitions(Alber PUBLIC "PANDA3DS_ENABLE_LUA=1")
-    target_link_libraries(Alber PRIVATE libluajit)
+    target_link_libraries(Alber PRIVATE libluajit uv)
 endif()
 
 if(ENABLE_OPENGL)
diff --git a/src/lua.cpp b/src/lua.cpp
index 729b6581..f7e0b719 100644
--- a/src/lua.cpp
+++ b/src/lua.cpp
@@ -1,6 +1,10 @@
 #ifdef PANDA3DS_ENABLE_LUA
 #include "lua_manager.hpp"
 
+extern "C" {
+	#include "luv.h"
+}
+
 void LuaManager::initialize() {
 	L = luaL_newstate();  // Open Lua
 
@@ -11,6 +15,9 @@ void LuaManager::initialize() {
 	}
 
 	luaL_openlibs(L);
+	lua_pushstring(L, "luv");
+	luaopen_luv(L);
+	lua_settable(L, LUA_GLOBALSINDEX);
 	initializeThunks();
 
 	initialized = true;
diff --git a/third_party/libuv b/third_party/libuv
new file mode 160000
index 00000000..b8368a14
--- /dev/null
+++ b/third_party/libuv
@@ -0,0 +1 @@
+Subproject commit b8368a1441fd4ebdaaae70b67136c80b1a98be32
diff --git a/third_party/luv b/third_party/luv
new file mode 160000
index 00000000..3e55ac43
--- /dev/null
+++ b/third_party/luv
@@ -0,0 +1 @@
+Subproject commit 3e55ac4331d06aa5f43016a142aa2aaa23264105