-/* Copyright (c) 2018-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2018-2021. 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. */
-#include "simgrid/s4u/Io.hpp"
-#include "simgrid/s4u/Storage.hpp"
-#include "src/kernel/activity/IoImpl.hpp"
-#include "xbt/log.h"
+#include <simgrid/s4u/Disk.hpp>
+#include <simgrid/s4u/Io.hpp>
+#include <xbt/log.h>
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_io, s4u_activity, "S4U asynchronous IOs");
+#include "src/kernel/activity/IoImpl.hpp"
+#include "src/kernel/actor/ActorImpl.hpp"
+#include "src/kernel/actor/SimcallObserver.hpp"
namespace simgrid {
namespace s4u {
+xbt::signal<void(Io const&)> Io::on_start;
+xbt::signal<void(Io const&)> Io::on_completion;
-Io::Io(sg_storage_t storage, sg_size_t size, OpType type) : Activity(), storage_(storage), size_(size), type_(type)
+Io::Io(kernel::activity::IoImplPtr pimpl)
{
- Activity::set_remaining(size_);
- pimpl_ = simix::simcall(
- [this] { return kernel::activity::IoImplPtr(new kernel::activity::IoImpl(name_, storage_->get_impl())); });
+ pimpl_ = pimpl;
}
-Io* Io::start()
+void Io::complete(Activity::State state)
{
- simix::simcall([this] { static_cast<kernel::activity::IoImpl*>(pimpl_.get())->start(size_, type_); });
- state_ = State::STARTED;
- return this;
+ Activity::complete(state);
+ on_completion(*this);
}
-Io* Io::cancel()
+IoPtr Io::init()
{
- simgrid::simix::simcall([this] { static_cast<kernel::activity::IoImpl*>(pimpl_.get())->cancel(); });
- state_ = State::CANCELED;
- return this;
+ auto pimpl = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+ return IoPtr(pimpl->get_iface());
}
-Io* Io::wait()
+Io* Io::start()
{
- simcall_io_wait(pimpl_);
- state_ = State::FINISHED;
+ kernel::actor::simcall(
+ [this] { (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)).set_name(get_name()).start(); });
+
+ if (suspended_)
+ pimpl_->suspend();
+
+ state_ = State::STARTED;
+ on_start(*this);
return this;
}
-Io* Io::wait_for(double)
+ssize_t Io::wait_any_for(const std::vector<IoPtr>& ios, double timeout)
{
- THROW_UNIMPLEMENTED;
- return this;
+ std::vector<kernel::activity::IoImpl*> rios(ios.size());
+ std::transform(begin(ios), end(ios), begin(rios),
+ [](const IoPtr& io) { return static_cast<kernel::activity::IoImpl*>(io->pimpl_.get()); });
+
+ kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
+ kernel::actor::IoWaitanySimcall observer{issuer, rios, timeout};
+ ssize_t changed_pos = kernel::actor::simcall_blocking(
+ [&observer] {
+ kernel::activity::IoImpl::wait_any_for(observer.get_issuer(), observer.get_ios(), observer.get_timeout());
+ },
+ &observer);
+ if (changed_pos != -1)
+ ios.at(changed_pos)->complete(State::FINISHED);
+ return changed_pos;
}
-bool Io::test()
+IoPtr Io::set_disk(const_sg_disk_t disk)
{
- xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED);
+ xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set disk once the Io is started");
- if (state_ == State::FINISHED)
- return true;
+ kernel::actor::simcall(
+ [this, disk] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_disk(disk->get_impl()); });
- if (state_ == State::INITED)
- this->start();
+ // Setting the disk may allow to start the activity, let's try
+ if (state_ == State::STARTING)
+ vetoable_start();
- THROW_UNIMPLEMENTED;
+ return this;
+}
- return false;
+IoPtr Io::set_size(sg_size_t size)
+{
+ xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
+ kernel::actor::simcall(
+ [this, size] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_size(size); });
+ Activity::set_remaining(size);
+ return this;
}
-/** @brief Returns the amount of flops that remain to be done */
-double Io::get_remaining()
+IoPtr Io::set_op_type(OpType type)
{
- return simgrid::simix::simcall(
- [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
+ xbt_assert(state_ == State::INITED || state_ == State::STARTING, "Cannot set size once the Io is started");
+ kernel::actor::simcall(
+ [this, type] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_type(type); });
+ return this;
}
-sg_size_t Io::get_performed_ioops()
+/** @brief Returns the amount of flops that remain to be done */
+double Io::get_remaining() const
{
- return simgrid::simix::simcall(
- [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops(); });
+ return kernel::actor::simcall(
+ [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
}
-void intrusive_ptr_release(simgrid::s4u::Io* i)
+sg_size_t Io::get_performed_ioops() const
{
- if (i->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
- std::atomic_thread_fence(std::memory_order_acquire);
- delete i;
- }
+ return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
}
-void intrusive_ptr_add_ref(simgrid::s4u::Io* i)
+bool Io::is_assigned() const
{
- i->refcount_.fetch_add(1, std::memory_order_relaxed);
+ return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_disk() != nullptr;
}
+
} // namespace s4u
} // namespace simgrid
