stub

src/cmd/cron.go

@@ -0,0 +1,10 @@
+package cmd
+
+import (
+	"context"
+	"io"
+)
+
+func cron(ctx context.Context) error {
+	return io.EOF
+}

src/cmd/main.go

@@ -2,9 +2,27 @@ package cmd
 
 import (
 	"context"
-	"io"
+	"fmt"
+	"show-rss/src/pool"
 )
 
 func Main(ctx context.Context) error {
-	return io.EOF
+	ctx, can := context.WithCancel(ctx)
+	defer can()
+
+	foos := map[string]func() error{
+		"server": func() error { return server(ctx) },
+		"cron":   func() error { return cron(ctx) },
+	}
+	p := pool.New(len(foos))
+	defer p.Wait(ctx)
+
+	for k, foo := range foos {
+		foo := foo
+		if err := p.Go(ctx, k, foo); err != nil {
+			return fmt.Errorf("failed to go %s: %v", k, err)
+		}
+	}
+
+	return p.Wait(ctx)
 }

src/cmd/server.go

@@ -0,0 +1,10 @@
+package cmd
+
+import (
+	"context"
+	"io"
+)
+
+func server(ctx context.Context) error {
+	return io.EOF
+}