-/* 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/Actor.hpp"
#include "simgrid/s4u/Disk.hpp"
#include "simgrid/s4u/Io.hpp"
-#include "simgrid/s4u/Storage.hpp"
#include "src/kernel/activity/IoImpl.hpp"
+#include "src/kernel/actor/ActorImpl.hpp"
#include "xbt/log.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_io, s4u_activity, "S4U asynchronous IOs");
-
namespace simgrid {
namespace s4u {
+xbt::signal<void(Io const&)> Io::on_start;
+xbt::signal<void(Io const&)> Io::on_completion;
-Io::Io(sg_disk_t disk, sg_size_t size, OpType type) : disk_(disk), size_(size), type_(type)
+Io::Io(kernel::activity::IoImplPtr pimpl)
{
- Activity::set_remaining(size_);
- pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+ pimpl_ = pimpl;
}
-Io::Io(sg_storage_t storage, sg_size_t size, OpType type) : storage_(storage), size_(size), type_(type)
+IoPtr Io::init()
{
- Activity::set_remaining(size_);
- pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+ auto pimpl = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+ return IoPtr(pimpl->get_iface());
}
Io* Io::start()
{
- kernel::actor::simcall([this] {
- if (storage_) {
- (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_))
- .set_name(get_name())
- .set_storage(storage_->get_impl())
- .set_size(size_)
- .set_type(type_)
- .start();
- } else {
- (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_))
- .set_name(get_name())
- .set_disk(disk_->get_impl())
- .set_size(size_)
- .set_type(type_)
- .start();
- }
- });
+ 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::cancel()
{
- simgrid::kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->cancel(); });
+ kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->cancel(); });
state_ = State::CANCELED;
+ on_completion(*this);
return this;
}
Io* Io::wait()
{
- simcall_io_wait(pimpl_);
- state_ = State::FINISHED;
- return this;
+ return this->wait_for(-1);
}
-Io* Io::wait_for(double)
+Io* Io::wait_for(double timeout)
{
- THROW_UNIMPLEMENTED;
+ if (state_ == State::INITED)
+ vetoable_start();
+
+ kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self();
+ kernel::actor::simcall_blocking([this, issuer, timeout] { this->get_impl()->wait_for(issuer, timeout); });
+ state_ = State::FINISHED;
+ this->release_dependencies();
+
+ on_completion(*this);
+ return this;
}
-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;
+}
+
+IoPtr Io::set_op_type(OpType type)
+{
+ 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;
}
/** @brief Returns the amount of flops that remain to be done */
-double Io::get_remaining()
+double Io::get_remaining() const
{
return kernel::actor::simcall(
[this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
}
-sg_size_t Io::get_performed_ioops()
+sg_size_t Io::get_performed_ioops() const
{
- return kernel::actor::simcall(
- [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops(); });
+ return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
+}
+
+bool Io::is_assigned() const
+{
+ return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_disk() != nullptr;
}
} // namespace s4u
