--- /dev/null
+/* Copyright (c) 2007-2022. The SimGrid Team. All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#ifndef SIMGRID_KERNEL_ACTIVITY_SYNCHRO_RAW_HPP
+#define SIMGRID_KERNEL_ACTIVITY_SYNCHRO_RAW_HPP
+
+#include "src/kernel/activity/ActivityImpl.hpp"
+
+#include <functional>
+
+namespace simgrid {
+namespace kernel {
+namespace activity {
+
+/** Used to implement mutexes, semaphores and conditions */
+class XBT_PUBLIC SynchroImpl : public ActivityImpl_T<SynchroImpl> {
+ sg_host_t host_ = nullptr;
+ double timeout_ = -1;
+ std::function<void()> finish_callback_;
+
+public:
+ explicit SynchroImpl(const std::function<void()>& finish_callback) : finish_callback_(finish_callback) {}
+ SynchroImpl& set_host(s4u::Host* host);
+ SynchroImpl& set_timeout(double timeout) override;
+
+ SynchroImpl* start();
+ void suspend() override;
+ void resume() override;
+ void cancel() override;
+ void post() override;
+ void set_exception(actor::ActorImpl* issuer) override;
+ void finish() override;
+};
+} // namespace activity
+} // namespace kernel
+} // namespace simgrid
+
+#endif