From 487852f07eb191ef56967b7b7d7f01537a55eabd Mon Sep 17 00:00:00 2001
From: Frédéric Guillot <fred@miniflux.net>
Date: Sun, 11 Nov 2018 15:32:48 -0800
Subject: Replace daemon and scheduler package with service package

---
 cli/cli.go    | 33 ++++++++++++++++-----------------
 cli/daemon.go | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 17 deletions(-)
 create mode 100644 cli/daemon.go

(limited to 'cli')

diff --git a/cli/cli.go b/cli/cli.go
index aa4d4b3..629367a 100644
--- a/cli/cli.go
+++ b/cli/cli.go
@@ -9,7 +9,6 @@ import (
 	"fmt"
 
 	"miniflux.app/config"
-	"miniflux.app/daemon"
 	"miniflux.app/database"
 	"miniflux.app/logger"
 	"miniflux.app/storage"
@@ -17,27 +16,27 @@ import (
 )
 
 const (
-	flagInfoHelp = "Show application information"
-	flagVersionHelp = "Show application version"
-	flagMigrateHelp = "Run SQL migrations"
-	flagFlsuhSessionsHelp = "Flush all sessions (disconnect users)"
-	flagCreateAdminHelp = "Create admin user"
-	flagResetPasswordHelp = "Reset user password"
+	flagInfoHelp            = "Show application information"
+	flagVersionHelp         = "Show application version"
+	flagMigrateHelp         = "Run SQL migrations"
+	flagFlsuhSessionsHelp   = "Flush all sessions (disconnect users)"
+	flagCreateAdminHelp     = "Create admin user"
+	flagResetPasswordHelp   = "Reset user password"
 	flagResetFeedErrorsHelp = "Clear all feed errors for all users"
-	flagDebugModeHelp = "Show debug logs"
+	flagDebugModeHelp       = "Show debug logs"
 )
 
 // Parse parses command line arguments.
 func Parse() {
 	var (
-		flagInfo bool
-		flagVersion bool
-		flagMigrate bool
-		flagFlushSessions bool
-		flagCreateAdmin bool
-		flagResetPassword bool
+		flagInfo            bool
+		flagVersion         bool
+		flagMigrate         bool
+		flagFlushSessions   bool
+		flagCreateAdmin     bool
+		flagResetPassword   bool
 		flagResetFeedErrors bool
-		flagDebugMode bool
+		flagDebugMode       bool
 	)
 
 	flag.BoolVar(&flagInfo, "info", false, flagInfoHelp)
@@ -49,7 +48,7 @@ func Parse() {
 	flag.BoolVar(&flagCreateAdmin, "create-admin", false, flagCreateAdminHelp)
 	flag.BoolVar(&flagResetPassword, "reset-password", false, flagResetPasswordHelp)
 	flag.BoolVar(&flagResetFeedErrors, "reset-feed-errors", false, flagResetFeedErrorsHelp)
-	flag.BoolVar(&flagDebugMode,"debug", false, flagDebugModeHelp)
+	flag.BoolVar(&flagDebugMode, "debug", false, flagDebugModeHelp)
 	flag.Parse()
 
 	cfg := config.NewConfig()
@@ -111,5 +110,5 @@ func Parse() {
 		createAdmin(store)
 	}
 
-	daemon.Run(cfg, store)
+	startDaemon(cfg, store)
 }
diff --git a/cli/daemon.go b/cli/daemon.go
new file mode 100644
index 0000000..436729c
--- /dev/null
+++ b/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)
+	}
+}
\ No newline at end of file
-- 
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