wip: migrate to mono-repo. SPN has already been moved to spn/

spn/terminal/module.go

@@ -0,0 +1,80 @@
+package terminal
+
+import (
+	"flag"
+	"time"
+
+	"github.com/safing/portbase/modules"
+	"github.com/safing/portbase/rng"
+	"github.com/safing/portmaster/spn/conf"
+	"github.com/safing/portmaster/spn/unit"
+)
+
+var (
+	module    *modules.Module
+	rngFeeder *rng.Feeder = rng.NewFeeder()
+
+	scheduler *unit.Scheduler
+
+	debugUnitScheduling bool
+)
+
+func init() {
+	flag.BoolVar(&debugUnitScheduling, "debug-unit-scheduling", false, "enable debug logs of the SPN unit scheduler")
+
+	module = modules.Register("terminal", nil, start, nil, "base")
+}
+
+func start() error {
+	rngFeeder = rng.NewFeeder()
+
+	scheduler = unit.NewScheduler(getSchedulerConfig())
+	if debugUnitScheduling {
+		// Debug unit leaks.
+		scheduler.StartDebugLog()
+	}
+	module.StartServiceWorker("msg unit scheduler", 0, scheduler.SlotScheduler)
+
+	lockOpRegistry()
+
+	return registerMetrics()
+}
+
+var waitForever chan time.Time
+
+// TimedOut returns a channel that triggers when the timeout is reached.
+func TimedOut(timeout time.Duration) <-chan time.Time {
+	if timeout == 0 {
+		return waitForever
+	}
+	return time.After(timeout)
+}
+
+// StopScheduler stops the unit scheduler.
+func StopScheduler() {
+	if scheduler != nil {
+		scheduler.Stop()
+	}
+}
+
+func getSchedulerConfig() *unit.SchedulerConfig {
+	// Client Scheduler Config.
+	if conf.Client() {
+		return &unit.SchedulerConfig{
+			SlotDuration:            10 * time.Millisecond, // 100 slots per second
+			MinSlotPace:             10,                    // 1000pps - Small starting pace for low end devices.
+			WorkSlotPercentage:      0.9,                   // 90%
+			SlotChangeRatePerStreak: 0.1,                   // 10% - Increase/Decrease quickly.
+			StatCycleDuration:       1 * time.Minute,       // Match metrics report cycle.
+		}
+	}
+
+	// Server Scheduler Config.
+	return &unit.SchedulerConfig{
+		SlotDuration:            10 * time.Millisecond, // 100 slots per second
+		MinSlotPace:             100,                   // 10000pps - Every server should be able to handle this.
+		WorkSlotPercentage:      0.7,                   // 70%
+		SlotChangeRatePerStreak: 0.05,                  // 5%
+		StatCycleDuration:       1 * time.Minute,       // Match metrics report cycle.
+	}
+}