first state machine code, exclusive already works

need to make final, parallel, timeouts
2024-07-17 14:16:25 +03:00
parent b35561f74e
commit 3db26a762c
10 changed files with 753 additions and 2 deletions
--- a/libs/main/state_machine/pistatemachine_transition.h
+++ b/libs/main/state_machine/pistatemachine_transition.h
@@ -0,0 +1,84 @@
+/*! \file pistatemachine_transition.h
+ * \ingroup StateMachine
+ * \~\brief
+ * \~english State machine transition
+ * \~russian Переход машины состояний
+ */
+/*
+    PIP - Platform Independent Primitives
+	State machine transition
+    Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef pistatemachine_transition_H
+#define pistatemachine_transition_H
+
+#include "pistatemachine_base.h"
+
+
+//! \ingroup StateMachine
+//! \~\brief
+//! \~english
+//! \~russian
+class PIP_EXPORT PITransitionBase {
+	friend class PIStateMachine;
+	friend class PIStateBase;
+
+public:
+	PITransitionBase(PIStateBase * source, PIStateBase * target, int event_id);
+	~PITransitionBase();
+
+	PIStateMachine * machine() const { return root; }
+	PIStateBase * source() const { return source_state; }
+	PIStateBase * target() const { return target_state; }
+
+	template<typename R, typename... Args>
+	PITransitionBase * addGuard(std::function<R(Args...)> f) {
+		static_assert(std::is_same<R, bool>::value, "guard function should return bool!");
+		piDeleteSafety(guard);
+		guard = PIStateMachineHelpers::makeFunction(f);
+		return this;
+	}
+
+	template<typename L>
+	PITransitionBase * addGuard(L f) {
+		return addGuard(PIStateMachineHelpers::toStdFunction(f));
+	}
+
+	template<typename... Args>
+	bool testGuard(Args... args) {
+		if (!guard) return true;
+		if (guard->formatHash() != PIStateMachineHelpers::Function<Args...>().formatHash()) {
+			piCout << "invalid arguments format!";
+			return false;
+		}
+		return reinterpret_cast<PIStateMachineHelpers::Function<Args...> *>(guard)->func(args...);
+	}
+
+	PITransitionBase * addAction(std::function<void()> a);
+	void makeAction();
+
+	void trigger();
+
+protected:
+	int eventID               = 0;
+	PIStateBase *source_state = nullptr, *target_state = nullptr;
+	PIStateMachine * root                       = nullptr;
+	PIStateMachineHelpers::FunctionBase * guard = nullptr;
+	std::function<void()> action;
+};
+
+#endif