Moved code to scan files in parallel at upper level to ease reuse

src/libs/core/include/core/IJob.hpp

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "core/LiteralString.hpp"
+
+namespace lms::core
+{
+    class IJob
+    {
+    public:
+        virtual ~IJob() = default;
+
+        virtual LiteralString getName() const = 0;
+        virtual void run() = 0;
+    };
+} // namespace lms::core

src/libs/core/include/core/IJobScheduler.hpp

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <functional>
+#include <memory>
+#include <vector>
+
+#include "core/LiteralString.hpp"
+
+namespace lms::core
+{
+    class IJob;
+    class IJobScheduler
+    {
+    public:
+        virtual ~IJobScheduler() = default;
+
+        using ShouldAbortCallback = std::function<bool()>;
+        virtual void setShouldAbortCallback(ShouldAbortCallback callback) = 0;
+
+        virtual std::size_t getThreadCount() const = 0;
+        virtual void scheduleJob(std::unique_ptr<IJob> job) = 0;
+
+        virtual std::size_t getJobsDoneCount() const = 0;
+        virtual size_t popJobsDone(std::vector<std::unique_ptr<IJob>>& jobs, std::size_t maxCount) = 0;
+
+        virtual void waitUntilJobCountAtMost(std::size_t maxOngoingJobs) = 0;
+        virtual void wait() = 0;
+    };
+
+    std::unique_ptr<IJobScheduler> createJobScheduler(core::LiteralString name, std::size_t threadCount);
+} // namespace lms::core