-/* Copyright (c) 2007-2022. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2023. 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. */
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ker_network, kernel, "Kernel network-related synchronization");
namespace simgrid::kernel::activity {
-xbt::signal<void(CommImpl const&)> CommImpl::on_start;
-xbt::signal<void(CommImpl const&)> CommImpl::on_completion;
-std::function<void(CommImpl*, void*, size_t)> CommImpl::copy_data_callback_ = &s4u::Comm::copy_pointer_callback;
+unsigned CommImpl::next_id_ = 0;
+
+/* In stateful MC, we need to ignore some private memory that is not relevant to the application state */
+void CommImpl::setup_mc()
+{
+ MC_ignore(&CommImpl::next_id_, sizeof(CommImpl::next_id_));
+}
+
+CommImpl::CommImpl()
+{
+ MC_ignore((void*)&id_, sizeof(id_));
+}
+
+std::function<void(CommImpl*, void*, size_t)> CommImpl::copy_data_callback_ = [](kernel::activity::CommImpl* comm,
+ void* buff, size_t buff_size) {
+ xbt_assert((buff_size == sizeof(void*)), "Cannot copy %zu bytes: must be sizeof(void*)", buff_size);
+ if (comm->dst_buff_ != nullptr) // get_async provided a buffer
+ *(void**)(comm->dst_buff_) = buff;
+ comm->payload_ = buff; // Setup what will be retrieved by s4u::Comm::get_payload()
+};
void CommImpl::set_copy_data_callback(const std::function<void(CommImpl*, void*, size_t)>& callback)
{
CommImpl& CommImpl::detach()
{
detached_ = true;
- EngineImpl::get_instance()->get_maestro()->activities_.emplace_back(this);
+ EngineImpl::get_instance()->get_maestro()->activities_.insert(this);
return *this;
}
{
XBT_DEBUG("Really free communication %p in state %s (detached = %d)", this, get_state_str(), detached_);
- cleanup_surf();
+ clean_action();
if (detached_ && get_state() != State::DONE) {
/* the communication has failed and was detached:
} else if (mbox_) {
mbox_->remove(this);
}
+
+ MC_unignore((void*)&id_, sizeof(id_));
}
/** @brief Starts the simulation of a communication synchro. */
/* Getting the network_model from the origin host
* Valid while we have a single network model, otherwise we would need to change this function to first get the
- * routes and later create the respective surf actions */
+ * routes and later create the respective model actions */
auto net_model = from_->get_netpoint()->get_englobing_zone()->get_network_model();
- surf_action_ = net_model->communicate(from_, to_, size_, rate_, false);
- surf_action_->set_activity(this);
- surf_action_->set_category(get_tracing_category());
- set_start_time(surf_action_->get_start_time());
+ model_action_ = net_model->communicate(from_, to_, size_, rate_, false);
+ model_action_->set_activity(this);
+ model_action_->set_category(get_tracing_category());
+ set_start_time(model_action_->get_start_time());
set_state(State::RUNNING);
- on_start(*this);
- XBT_DEBUG("Starting communication %p from '%s' to '%s' (surf_action: %p; state: %s)", this, from_->get_cname(),
- to_->get_cname(), surf_action_, get_state_str());
+ XBT_DEBUG("Starting communication %p from '%s' to '%s' (model action: %p; state: %s)", this, from_->get_cname(),
+ to_->get_cname(), model_action_, get_state_str());
/* If a link is failed, detect it immediately */
- if (surf_action_->get_state() == resource::Action::State::FAILED) {
+ if (model_action_->get_state() == resource::Action::State::FAILED) {
XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", from_->get_cname(),
to_->get_cname());
set_state(State::LINK_FAILURE);
- post();
+ finish();
} else if ((src_actor_ != nullptr && src_actor_->is_suspended()) ||
(dst_actor_ != nullptr && dst_actor_->is_suspended())) {
"communication",
dst_actor_->get_cname(), dst_actor_->get_host()->get_cname());
- surf_action_->suspend();
+ model_action_->suspend();
}
}
{
size_t buff_size = src_buff_size_;
/* If there is no data to copy then return */
- if (not src_buff_ || not dst_buff_ || copied_)
+ if (not src_buff_ || not dst_buff_size_ || copied_)
return;
XBT_DEBUG("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)", this,
other_comm->clean_fun = observer->get_clean_fun();
} else {
other_comm->clean_fun = nullptr;
- observer->get_issuer()->activities_.emplace_back(other_comm);
+ observer->get_issuer()->activities_.insert(other_comm);
}
/* Setup the communication synchro */
// find a match in the list of already received comms
other_comm = mbox->find_matching_comm(CommImplType::SEND, observer->get_match_fun(), observer->get_payload(),
this_synchro, /*done*/ true, /*remove_matching*/ true);
- if (other_comm && other_comm->surf_action_ && other_comm->get_remaining() < 1e-12) {
+ if (other_comm && other_comm->model_action_ && other_comm->get_remaining() < 1e-12) {
XBT_DEBUG("comm %p has been already sent, and is finished, destroy it", other_comm.get());
other_comm->set_state(State::DONE);
other_comm->set_mailbox(nullptr);
other_comm = std::move(this_synchro);
mbox->push(other_comm);
}
- observer->get_issuer()->activities_.emplace_back(other_comm);
+ observer->get_issuer()->activities_.insert(other_comm);
}
} else {
/* Prepare a comm describing us, so that it gets passed to the user-provided filter of other side */
other_comm->set_state(simgrid::kernel::activity::State::READY);
}
- observer->get_issuer()->activities_.emplace_back(other_comm);
+ observer->get_issuer()->activities_.insert(other_comm);
}
observer->set_comm(other_comm.get());
void CommImpl::suspend()
{
/* FIXME: shall we suspend also the timeout synchro? */
- if (surf_action_)
- surf_action_->suspend();
+ if (model_action_)
+ model_action_->suspend();
/* if not created yet, the action will be suspended on creation, in CommImpl::start() */
}
void CommImpl::resume()
{
/*FIXME: check what happen with the timeouts */
- if (surf_action_)
- surf_action_->resume();
+ if (model_action_)
+ model_action_->resume();
/* in the other case, the synchro were not really suspended yet, see CommImpl::suspend() and CommImpl::start() */
}
mbox_->remove(this);
set_state(State::CANCELED);
}
- } else if (not MC_is_active() /* when running the MC there are no surf actions */
+ } else if (not MC_is_active() /* when running the MC there are no model actions */
&& not MC_record_replay_is_active() && (get_state() == State::READY || get_state() == State::RUNNING)) {
- surf_action_->cancel();
- }
-}
-
-/** @brief This is part of the cleanup process, probably an internal command */
-void CommImpl::cleanup_surf()
-{
- clean_action();
-
- if (src_timeout_) {
- src_timeout_->unref();
- src_timeout_ = nullptr;
- }
-
- if (dst_timeout_) {
- dst_timeout_->unref();
- dst_timeout_ = nullptr;
+ model_action_->cancel();
}
}
-void CommImpl::post()
-{
- on_completion(*this);
-
- /* Update synchro state */
- if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FINISHED)
- set_state(State::SRC_TIMEOUT);
- else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FINISHED)
- set_state(State::DST_TIMEOUT);
- else if ((from_ && not from_->is_on()) || (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FAILED))
- set_state(State::SRC_HOST_FAILURE);
- else if ((to_ && not to_->is_on()) || (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FAILED))
- set_state(State::DST_HOST_FAILURE);
- else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
- set_state(State::LINK_FAILURE);
- } else if (get_state() == State::RUNNING) {
- xbt_assert(from_ && from_->is_on());
- xbt_assert(to_ && to_->is_on());
- set_state(State::DONE);
- }
-
- XBT_DEBUG("CommImpl::post(): comm %p, state %s, src_proc %p, dst_proc %p, detached: %d", this, get_state_str(),
- src_actor_.get(), dst_actor_.get(), detached_);
-
- /* destroy the surf actions associated with the Simix communication */
- cleanup_surf();
-
- /* Answer all simcalls associated with the synchro */
- finish();
-}
void CommImpl::set_exception(actor::ActorImpl* issuer)
{
switch (get_state()) {
void CommImpl::finish()
{
- XBT_DEBUG("CommImpl::finish() in state %s", get_state_str());
+ XBT_DEBUG("CommImpl::finish() comm %p, state %s, src_proc %p, dst_proc %p, detached: %d", this, get_state_str(),
+ src_actor_.get(), dst_actor_.get(), detached_);
+
+ if (get_iface()) {
+ const auto& piface = static_cast<const s4u::Comm&>(*get_iface());
+ set_iface(nullptr); // reset iface to protect against multiple trigger of the on_completion signals
+ piface.fire_on_completion_for_real();
+ piface.fire_on_this_completion_for_real();
+ }
+
+ /* Update synchro state */
+ if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FINISHED)
+ set_state(State::SRC_TIMEOUT);
+ else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FINISHED)
+ set_state(State::DST_TIMEOUT);
+ else if ((from_ && not from_->is_on()) ||
+ (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FAILED))
+ set_state(State::SRC_HOST_FAILURE);
+ else if ((to_ && not to_->is_on()) || (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FAILED))
+ set_state(State::DST_HOST_FAILURE);
+ else if (model_action_ && model_action_->get_state() == resource::Action::State::FAILED) {
+ set_state(State::LINK_FAILURE);
+ } else if (get_state() == State::RUNNING) {
+ xbt_assert(from_ && from_->is_on());
+ xbt_assert(to_ && to_->is_on());
+ set_state(State::DONE);
+ }
+ src_timeout_ = nullptr;
+ dst_timeout_ = nullptr;
+
+ /* destroy the model actions associated with the communication activity */
+ clean_action();
+
/* If the synchro is still in a rendez-vous point then remove from it */
if (mbox_)
mbox_->remove(this);
copy_data();
if (detached_)
- EngineImpl::get_instance()->get_maestro()->activities_.remove(this);
+ EngineImpl::get_instance()->get_maestro()->activities_.erase(this);
while (not simcalls_.empty()) {
actor::Simcall* simcall = simcalls_.front();
}
simcall->issuer_->waiting_synchro_ = nullptr;
- simcall->issuer_->activities_.remove(this);
+ simcall->issuer_->activities_.erase(this);
if (detached_) {
if (simcall->issuer_ != dst_actor_ && dst_actor_ != nullptr)
- dst_actor_->activities_.remove(this);
+ dst_actor_->activities_.erase(this);
if (simcall->issuer_ != src_actor_ && src_actor_ != nullptr)
- src_actor_->activities_.remove(this);
+ src_actor_->activities_.erase(this);
}
}
}
