Return both simulation and scheduler at init

asynchronix/examples/assembly.rs

@@ -133,12 +133,10 @@ fn main() -> Result<(), SimulationError> {
     let t0 = MonotonicTime::EPOCH;
 
     // Assembly and initialization.
-    let mut simu = SimInit::new()
+    let (mut simu, scheduler) = SimInit::new()
         .add_model(assembly, assembly_mbox, "assembly")
         .init(t0)?;
 
-    let scheduler = simu.scheduler();
-
     // ----------
     // Simulation.
     // ----------

asynchronix/examples/espresso_machine.rs

@@ -366,14 +366,12 @@ fn main() -> Result<(), SimulationError> {
     let t0 = MonotonicTime::EPOCH;
 
     // Assembly and initialization.
-    let mut simu = SimInit::new()
+    let (mut simu, scheduler) = SimInit::new()
         .add_model(controller, controller_mbox, "controller")
         .add_model(pump, pump_mbox, "pump")
         .add_model(tank, tank_mbox, "tank")
         .init(t0)?;
 
-    let scheduler = simu.scheduler();
-
     // ----------
     // Simulation.
     // ----------

asynchronix/examples/external_input.rs

@@ -210,7 +210,8 @@ fn main() -> Result<(), SimulationError> {
     let mut simu = SimInit::new()
         .add_model(listener, listener_mbox, "listener")
         .set_clock(AutoSystemClock::new())
-        .init(t0)?;
+        .init(t0)?
+        .0;
 
     // ----------
     // Simulation.

asynchronix/examples/power_supply.rs

@@ -144,7 +144,8 @@ fn main() -> Result<(), SimulationError> {
         .add_model(load1, load1_mbox, "load1")
         .add_model(load2, load2_mbox, "load2")
         .add_model(load3, load3_mbox, "load3")
-        .init(t0)?;
+        .init(t0)?
+        .0;
 
     // ----------
     // Simulation.

asynchronix/examples/stepper_motor.rs

@@ -206,13 +206,11 @@ fn main() -> Result<(), asynchronix::simulation::SimulationError> {
     let t0 = MonotonicTime::EPOCH;
 
     // Assembly and initialization.
-    let mut simu = SimInit::new()
+    let (mut simu, scheduler) = SimInit::new()
         .add_model(driver, driver_mbox, "driver")
         .add_model(motor, motor_mbox, "motor")
         .init(t0)?;
 
-    let scheduler = simu.scheduler();
-
     // ----------
     // Simulation.
     // ----------