first state machine code, exclusive already works

need to make final, parallel, timeouts

libs/main/state_machine/pistatemachine.h

@@ -0,0 +1,61 @@
+/*! \file pistatemachine.h
+ * \ingroup StateMachine
+ * \~\brief
+ * \~english State machine.
+ * \~russian Машина состояний.
+ */
+/*
+    PIP - Platform Independent Primitives
+	State machine
+    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_H
+#define pistatemachine_H
+
+#include "pistatemachine_state.h"
+#include "pistatemachine_transition.h"
+
+
+//! \ingroup StateMachine
+//! \~\brief
+//! \~english
+//! \~russian
+class PIP_EXPORT PIStateMachine: public PIStateBase {
+public:
+	PIStateMachine(const PIString & n = {});
+
+	bool start();
+
+	template<typename... Args>
+	bool postEvent(int event_id, Args... args) {
+		PIVector<PIStateBase *> active_states;
+		gatherActiveStates(active_states);
+		for (auto * s: active_states) {
+			for (auto * t: s->transitions) {
+				if (t->eventID != event_id) continue;
+				if (t->testGuard(args...)) {
+					t->trigger();
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+};
+
+
+#endif