[sim] Move WPILib C++ sim implementations out of line (#2598)

This makes the sim classes consistent with the rest of the WPILibC classes.

wpilibc/src/main/native/cpp/simulation/DutyCycleSim.cpp

@@ -0,0 +1,85 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2019-2020 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "frc/simulation/DutyCycleSim.h"
+
+#include <memory>
+#include <stdexcept>
+#include <utility>
+
+#include <hal/simulation/DutyCycleData.h>
+
+#include "frc/DutyCycle.h"
+
+using namespace frc;
+using namespace frc::sim;
+
+DutyCycleSim::DutyCycleSim(const DutyCycle& dutyCycle)
+    : m_index{dutyCycle.GetFPGAIndex()} {}
+
+DutyCycleSim DutyCycleSim::CreateForChannel(int channel) {
+  int index = HALSIM_FindDutyCycleForChannel(channel);
+  if (index < 0) throw std::out_of_range("no duty cycle found for channel");
+  return DutyCycleSim{index};
+}
+
+DutyCycleSim DutyCycleSim::CreateForIndex(int index) {
+  return DutyCycleSim{index};
+}
+
+std::unique_ptr<CallbackStore> DutyCycleSim::RegisterInitializedCallback(
+    NotifyCallback callback, bool initialNotify) {
+  auto store = std::make_unique<CallbackStore>(
+      m_index, -1, callback, &HALSIM_CancelDutyCycleInitializedCallback);
+  store->SetUid(HALSIM_RegisterDutyCycleInitializedCallback(
+      m_index, &CallbackStoreThunk, store.get(), initialNotify));
+  return store;
+}
+
+bool DutyCycleSim::GetInitialized() const {
+  return HALSIM_GetDutyCycleInitialized(m_index);
+}
+
+void DutyCycleSim::SetInitialized(bool initialized) {
+  HALSIM_SetDutyCycleInitialized(m_index, initialized);
+}
+
+std::unique_ptr<CallbackStore> DutyCycleSim::RegisterFrequencyCallback(
+    NotifyCallback callback, bool initialNotify) {
+  auto store = std::make_unique<CallbackStore>(
+      m_index, -1, callback, &HALSIM_CancelDutyCycleFrequencyCallback);
+  store->SetUid(HALSIM_RegisterDutyCycleFrequencyCallback(
+      m_index, &CallbackStoreThunk, store.get(), initialNotify));
+  return store;
+}
+
+int DutyCycleSim::GetFrequency() const {
+  return HALSIM_GetDutyCycleFrequency(m_index);
+}
+
+void DutyCycleSim::SetFrequency(int count) {
+  HALSIM_SetDutyCycleFrequency(m_index, count);
+}
+
+std::unique_ptr<CallbackStore> DutyCycleSim::RegisterOutputCallback(
+    NotifyCallback callback, bool initialNotify) {
+  auto store = std::make_unique<CallbackStore>(
+      m_index, -1, callback, &HALSIM_CancelDutyCycleOutputCallback);
+  store->SetUid(HALSIM_RegisterDutyCycleOutputCallback(
+      m_index, &CallbackStoreThunk, store.get(), initialNotify));
+  return store;
+}
+
+double DutyCycleSim::GetOutput() const {
+  return HALSIM_GetDutyCycleOutput(m_index);
+}
+
+void DutyCycleSim::SetOutput(double period) {
+  HALSIM_SetDutyCycleOutput(m_index, period);
+}
+
+void DutyCycleSim::ResetData() { HALSIM_ResetDutyCycleData(m_index); }