-/* Copyright (c) 2018-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2018-2023. 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. */
-#include "simgrid/s4u/Disk.hpp"
-#include "simgrid/s4u/Io.hpp"
-#include "simgrid/s4u/Storage.hpp"
+#include <simgrid/s4u/ActivitySet.hpp>
+#include <simgrid/s4u/Disk.hpp>
+#include <simgrid/s4u/Io.hpp>
+#include <xbt/log.h>
+
#include "src/kernel/activity/IoImpl.hpp"
-#include "xbt/log.h"
+#include "src/kernel/actor/ActorImpl.hpp"
+#include "src/kernel/actor/SimcallObserver.hpp"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_io, s4u_activity, "S4U asynchronous I/Os");
+
+namespace simgrid::s4u {
+
+Io::Io(kernel::activity::IoImplPtr pimpl)
+{
+ pimpl_ = pimpl;
+}
-namespace simgrid {
-namespace s4u {
+IoPtr Io::init()
+{
+ auto pimpl = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+ return IoPtr(static_cast<Io*>(pimpl->get_iface()));
+}
+
+IoPtr Io::streamto_init(Host* from, const Disk* from_disk, Host* to, const Disk* to_disk)
+{
+ auto res = Io::init()->set_source(from, from_disk)->set_destination(to, to_disk);
+ res->set_state(State::STARTING);
+ return res;
+}
-Io::Io(sg_disk_t disk, sg_size_t size, OpType type) : disk_(disk), size_(size), type_(type)
+IoPtr Io::streamto_async(Host* from, const Disk* from_disk, Host* to, const Disk* to_disk,
+ uint64_t simulated_size_in_bytes)
{
- Activity::set_remaining(size_);
- pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+ return Io::init()->set_size(simulated_size_in_bytes)->set_source(from, from_disk)->set_destination(to, to_disk);
}
-Io::Io(sg_storage_t storage, sg_size_t size, OpType type) : storage_(storage), size_(size), type_(type)
+void Io::streamto(Host* from, const Disk* from_disk, Host* to, const Disk* to_disk, uint64_t simulated_size_in_bytes)
{
- Activity::set_remaining(size_);
- pimpl_ = kernel::activity::IoImplPtr(new kernel::activity::IoImpl());
+ streamto_async(from, from_disk, to, to_disk, simulated_size_in_bytes)->wait();
}
-Io* Io::start()
+IoPtr Io::set_source(Host* from, const Disk* from_disk)
{
- 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();
- }
+ xbt_assert(state_ == State::INITED || state_ == State::STARTING,
+ "Cannot change the source of an IO stream once it's started (state: %s)", to_c_str(state_));
+ kernel::actor::simcall_object_access(pimpl_.get(), [this, from, from_disk] {
+ boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_host(from);
+ if (from_disk != nullptr)
+ boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_disk(from_disk->get_impl());
});
- state_ = State::STARTED;
+ // Setting 'source' may allow to start the activity, let's try
+ if (state_ == State::STARTING && remains_ <= 0)
+ XBT_DEBUG("This IO has a size of 0 byte. It cannot start yet");
+ else
+ start();
+
return this;
}
-Io* Io::cancel()
+IoPtr Io::set_destination(Host* to, const Disk* to_disk)
{
- simgrid::kernel::actor::simcall([this] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->cancel(); });
- state_ = State::CANCELED;
+ xbt_assert(state_ == State::INITED || state_ == State::STARTING,
+ "Cannot change the source of an IO stream once it's started (state: %s)", to_c_str(state_));
+ kernel::actor::simcall_object_access(pimpl_.get(), [this, to, to_disk] {
+ boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_dst_host(to);
+ if (to_disk != nullptr)
+ boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_dst_disk(to_disk->get_impl());
+ });
+ // Setting 'destination' may allow to start the activity, let's try
+ if (state_ == State::STARTING && remains_ <= 0)
+ XBT_DEBUG("This IO has a size of 0 byte. It cannot start yet");
+ else
+ start();
+
return this;
}
-Io* Io::wait()
+Io* Io::do_start()
{
- simcall_io_wait(pimpl_);
- state_ = State::FINISHED;
+ kernel::actor::simcall_answered(
+ [this] { (*boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)).set_name(get_name()).start(); });
+
+ if (suspended_)
+ pimpl_->suspend();
+
+ state_ = State::STARTED;
+ fire_on_start();
+ fire_on_this_start();
return this;
}
-Io* Io::wait_for(double)
+ssize_t Io::deprecated_wait_any_for(const std::vector<IoPtr>& ios, double timeout) // XBT_ATTRIB_DEPRECATED_v339
{
- THROW_UNIMPLEMENTED;
+ ActivitySet set;
+ for (const auto& io : ios)
+ set.push(io);
+
+ auto* ret = set.wait_any_for(timeout).get();
+ for (size_t i = 0; i < ios.size(); i++)
+ if (ios[i].get() == ret)
+ return i;
+
+ return -1;
}
-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_answered(
+ [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)
+ start();
- THROW_UNIMPLEMENTED;
+ return this;
+}
+
+IoPtr Io::set_priority(double priority)
+{
+ xbt_assert(state_ == State::INITED || state_ == State::STARTING,
+ "Cannot change the priority of an io after its start");
+ kernel::actor::simcall_object_access(pimpl_.get(), [this, priority] {
+ boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_sharing_penalty(1. / priority);
+ });
+ return this;
+}
+
+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_object_access(
+ pimpl_.get(), [this, size] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_size(size); });
+ set_remaining(size);
+ return this;
+}
- // return false
+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_object_access(
+ pimpl_.get(), [this, type] { boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->set_type(type); });
+ return this;
+}
+
+IoPtr Io::update_priority(double priority)
+{
+ kernel::actor::simcall_answered([this, priority] {
+ boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->update_sharing_penalty(1. / priority);
+ });
+ 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_object_access(
+ pimpl_.get(), [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
+}
+
+sg_size_t Io::get_performed_ioops() const
{
- return kernel::actor::simcall(
- [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_remaining(); });
+ return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops();
}
-sg_size_t Io::get_performed_ioops()
+bool Io::is_assigned() const
{
- return kernel::actor::simcall(
- [this]() { return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_performed_ioops(); });
+ if (boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_host() == nullptr) {
+ return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_disk() != nullptr;
+ } else {
+ return boost::static_pointer_cast<kernel::activity::IoImpl>(pimpl_)->get_dst_host() != nullptr;
+ }
}
-} // namespace s4u
-} // namespace simgrid
+} // namespace simgrid::s4u
