Replace daemon and scheduler package with service package

cli/daemon.go

@@ -0,0 +1,57 @@
+// Copyright 2018 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package cli // import "miniflux.app/cli"
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"runtime"
+	"syscall"
+	"time"
+
+	"miniflux.app/config"
+	"miniflux.app/logger"
+	"miniflux.app/reader/feed"
+	"miniflux.app/service/scheduler"
+	"miniflux.app/service/httpd"
+	"miniflux.app/storage"
+	"miniflux.app/worker"
+)
+
+func startDaemon(cfg *config.Config, store *storage.Storage) {
+	logger.Info("Starting Miniflux...")
+
+	stop := make(chan os.Signal, 1)
+	signal.Notify(stop, os.Interrupt)
+	signal.Notify(stop, syscall.SIGTERM)
+
+	feedHandler := feed.NewFeedHandler(store)
+	pool := worker.NewPool(feedHandler, cfg.WorkerPoolSize())
+
+	go scheduler.Serve(cfg, store, pool)
+	go showProcessStatistics()
+
+	httpServer := httpd.Serve(cfg, store, pool, feedHandler)
+
+	<-stop
+	logger.Info("Shutting down the process...")
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	httpServer.Shutdown(ctx)
+	logger.Info("Process gracefully stopped")
+}
+
+func showProcessStatistics() {
+	for {
+		var m runtime.MemStats
+		runtime.ReadMemStats(&m)
+		logger.Debug("Sys=%vK, InUse=%vK, HeapInUse=%vK, StackSys=%vK, StackInUse=%vK, GoRoutines=%d, NumCPU=%d",
+			m.Sys/1024, (m.Sys-m.HeapReleased)/1024, m.HeapInuse/1024, m.StackSys/1024, m.StackInuse/1024,
+			runtime.NumGoroutine(), runtime.NumCPU())
+		time.Sleep(30 * time.Second)
+	}
+}