multithreaded module compilation

Crafter.Build-ModuleFile.cppm

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+/*
+Crafter.Build
+Copyright (C) 2024 Catcrafts
+Catcrafts.net
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 3.0 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+
+module;
+#include <string>
+#include <filesystem>
+#include <mutex>
+#include <unordered_map>
+export module Crafter.Build:ModuleFile;
+import :Configuration;
+namespace fs = std::filesystem;
+
+export namespace Crafter::Build {
+    class ModuleFile {
+    public:
+        inline static std::mutex allFilesMutex;
+        std::mutex fileMutex;
+        inline static std::unordered_map<fs::path, ModuleFile*> allFiles;
+        bool needsRecompiling;
+        bool recompiled = false;
+        fs::path path;
+        std::vector<ModuleFile*> dependencies;
+        static ModuleFile* CompileModuleFile(fs::path path, std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target);
+    private:
+        ModuleFile(fs::path path, std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target);
+        void Compile(std::string clangDir, const Configuration& config, fs::path pcmDir, std::string target);
+    };
+}