+/* **************************** Public C interface *************************** */
+void sg_comm_detach(sg_comm_t comm, void (*clean_function)(void*))
+{
+ comm->detach(clean_function);
+ comm->unref();
+}
+void sg_comm_unref(sg_comm_t comm)
+{
+ comm->unref();
+}
+int sg_comm_test(sg_comm_t comm)
+{
+ bool finished = comm->test();
+ if (finished)
+ comm->unref();
+ return finished;
+}
+
+sg_error_t sg_comm_wait(sg_comm_t comm)
+{
+ return sg_comm_wait_for(comm, -1);
+}
+
+sg_error_t sg_comm_wait_for(sg_comm_t comm, double timeout)
+{
+ sg_error_t status = SG_OK;
+
+ simgrid::s4u::CommPtr s4u_comm(comm, false);
+ try {
+ s4u_comm->wait_for(timeout);
+ } catch (const simgrid::TimeoutException&) {
+ status = SG_ERROR_TIMEOUT;
+ } catch (const simgrid::CancelException&) {
+ status = SG_ERROR_CANCELED;
+ } catch (const simgrid::NetworkFailureException&) {
+ status = SG_ERROR_NETWORK;
+ }
+ return status;
+}
+
+void sg_comm_wait_all(sg_comm_t* comms, size_t count)
+{
+ sg_comm_wait_all_for(comms, count, -1);
+}
+
+size_t sg_comm_wait_all_for(sg_comm_t* comms, size_t count, double timeout)
+{
+ std::vector<simgrid::s4u::CommPtr> s4u_comms;
+ for (size_t i = 0; i < count; i++)
+ s4u_comms.emplace_back(comms[i], false);
+
+ size_t pos = simgrid::s4u::Comm::wait_all_for(s4u_comms, timeout);
+ for (size_t i = pos; i < count; i++)
+ s4u_comms[i]->add_ref();
+ return pos;
+}
+
+ssize_t sg_comm_wait_any(sg_comm_t* comms, size_t count)
+{
+ return sg_comm_wait_any_for(comms, count, -1);
+}
+
+ssize_t sg_comm_wait_any_for(sg_comm_t* comms, size_t count, double timeout)
+{
+ std::vector<simgrid::s4u::CommPtr> s4u_comms;
+ for (size_t i = 0; i < count; i++)
+ s4u_comms.emplace_back(comms[i], false);
+
+ ssize_t pos = simgrid::s4u::Comm::wait_any_for(s4u_comms, timeout);
+ for (size_t i = 0; i < count; i++) {
+ if (pos != -1 && static_cast<size_t>(pos) != i)
+ s4u_comms[i]->add_ref();
+ }
+ return pos;
+}