-/* Copyright (c) 2006-2014. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2006-2017. 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 <string>
+#include <functional>
+#include <stdexcept>
+
+#include <map>
+
+#include "simgrid/s4u/Engine.hpp"
+#include "simgrid/s4u/Host.hpp"
+#include "simgrid/s4u/Storage.hpp"
+#include "simgrid/simix.hpp"
+#include "src/kernel/routing/NetPoint.hpp"
+#include "src/msg/msg_private.hpp"
+#include "src/simix/ActorImpl.hpp"
+#include "src/simix/smx_private.hpp"
+#include "src/surf/HostImpl.hpp"
+#include "src/surf/cpu_interface.hpp"
#include "xbt/log.h"
-#include "msg/msg_private.h"
-#include "simix/smx_process_private.h"
-#include "simgrid/s4u/host.hpp"
+XBT_LOG_EXTERNAL_CATEGORY(surf_route);
+
+int USER_HOST_LEVEL = -1;
+
+namespace simgrid {
+
+namespace xbt {
+template class Extendable<simgrid::s4u::Host>;
+}
+
+namespace s4u {
-using namespace simgrid;
+std::map<std::string, simgrid::s4u::Host*> host_list; // FIXME: move it to Engine
-boost::unordered_map<std::string, simgrid::s4u::Host*> *simgrid::s4u::Host::hosts
- = new boost::unordered_map<std::string, simgrid::s4u::Host*>();
+simgrid::xbt::signal<void(Host&)> Host::onCreation;
+simgrid::xbt::signal<void(Host&)> Host::onDestruction;
+simgrid::xbt::signal<void(Host&)> Host::onStateChange;
+simgrid::xbt::signal<void(Host&)> Host::onSpeedChange;
-s4u::Host::Host(const char*name) {
- p_sghost = sg_host_by_name(name);
- if (p_sghost==NULL)
- xbt_die("No such host: %s",name); //FIXME: raise an exception
+Host::Host(const char* name)
+ : name_(name)
+{
+ xbt_assert(Host::by_name_or_null(name) == nullptr, "Refusing to create a second host named '%s'.", name);
+ host_list[name_] = this;
+ new simgrid::surf::HostImpl(this);
}
-s4u::Host *s4u::Host::byName(std::string name) {
- s4u::Host * res = NULL;
- try {
- res = hosts->at(name);
- } catch (std::out_of_range& e) {}
+Host::~Host()
+{
+ xbt_assert(currentlyDestroying_, "Please call h->destroy() instead of manually deleting it.");
+
+ delete pimpl_;
+ if (pimpl_netpoint != nullptr) // not removed yet by a children class
+ simgrid::s4u::Engine::getInstance()->netpointUnregister(pimpl_netpoint);
+ delete pimpl_cpu;
+ delete mounts;
+}
- if (res==NULL) {
- res = new s4u::Host(name.c_str());
- hosts->insert({name,res});
- }
- return res;
+/** @brief Fire the required callbacks and destroy the object
+ *
+ * Don't delete directly an Host, call h->destroy() instead.
+ *
+ * This is cumbersome but this is the simplest solution to ensure that the
+ * onDestruction() callback receives a valid object (because of the destructor
+ * order in a class hierarchy).
+ */
+void Host::destroy()
+{
+ if (not currentlyDestroying_) {
+ currentlyDestroying_ = true;
+ onDestruction(*this);
+ host_list.erase(name_);
+ delete this;
+ }
}
-s4u::Host *s4u::Host::current(){
- smx_process_t smx_proc = SIMIX_process_self();
- if (smx_proc == NULL)
- xbt_die("Cannot call Host::current() from the maestro context");
- return s4u::Host::byName(SIMIX_host_get_name(SIMIX_process_get_host(smx_proc)));
+Host* Host::by_name(std::string name)
+{
+ return host_list.at(name); // Will raise a std::out_of_range if the host does not exist
+}
+Host* Host::by_name_or_null(const char* name)
+{
+ return by_name_or_null(std::string(name));
+}
+Host* Host::by_name_or_null(std::string name)
+{
+ auto host = host_list.find(name);
+ return host == host_list.end() ? nullptr : host->second;
}
-const char* s4u::Host::getName() {
- return sg_host_name(p_sghost);
+Host *Host::current(){
+ smx_actor_t smx_proc = SIMIX_process_self();
+ if (smx_proc == nullptr)
+ xbt_die("Cannot call Host::current() from the maestro context");
+ return smx_proc->host;
}
-void s4u::Host::turnOn() {
- simcall_host_on(p_sghost);
+void Host::turnOn() {
+ if (isOff()) {
+ simgrid::simix::kernelImmediate([this] {
+ this->extension<simgrid::simix::Host>()->turnOn();
+ this->pimpl_cpu->turnOn();
+ onStateChange(*this);
+ });
+ }
}
-void s4u::Host::turnOff() {
- simcall_host_off(p_sghost);
+
+void Host::turnOff() {
+ if (isOn()) {
+ smx_actor_t self = SIMIX_process_self();
+ simgrid::simix::kernelImmediate([this, self] {
+ SIMIX_host_off(this, self);
+ onStateChange(*this);
+ });
+ }
}
-bool s4u::Host::isOn() {
- return simcall_host_get_state(p_sghost);
+
+bool Host::isOn() {
+ return this->pimpl_cpu->isOn();
+}
+
+int Host::getPstatesCount() const
+{
+ return this->pimpl_cpu->getNbPStates();
+}
+
+/**
+ * \brief Return the list of actors attached to an host.
+ *
+ * \param whereto a vector in which we should push actors living on that host
+ */
+void Host::actorList(std::vector<ActorPtr>* whereto)
+{
+ smx_actor_t actor = NULL;
+ xbt_swag_foreach(actor, this->extension<simgrid::simix::Host>()->process_list)
+ {
+ whereto->push_back(actor->ciface());
+ }
+}
+
+/**
+ * \brief Find a route toward another host
+ *
+ * \param dest [IN] where to
+ * \param links [OUT] where to store the list of links (must exist, cannot be nullptr).
+ * \param latency [OUT] where to store the latency experienced on the path (or nullptr if not interested)
+ * It is the caller responsibility to initialize latency to 0 (we add to provided route)
+ * \pre links!=nullptr
+ *
+ * walk through the routing components tree and find a route between hosts
+ * by calling each "get_route" function in each routing component.
+ */
+void Host::routeTo(Host* dest, std::vector<Link*>* links, double* latency)
+{
+ std::vector<surf::LinkImpl*> linkImpls;
+ this->routeTo(dest, &linkImpls, latency);
+ for (surf::LinkImpl* const& l : linkImpls)
+ links->push_back(&l->piface_);
+}
+
+/** @brief Just like Host::routeTo, but filling an array of link implementations */
+void Host::routeTo(Host* dest, std::vector<surf::LinkImpl*>* links, double* latency)
+{
+ simgrid::kernel::routing::NetZoneImpl::getGlobalRoute(pimpl_netpoint, dest->pimpl_netpoint, links, latency);
+ if (XBT_LOG_ISENABLED(surf_route, xbt_log_priority_debug)) {
+ XBT_CDEBUG(surf_route, "Route from '%s' to '%s' (latency: %f):", getCname(), dest->getCname(),
+ (latency == nullptr ? -1 : *latency));
+ for (auto const& link : *links)
+ XBT_CDEBUG(surf_route, "Link %s", link->cname());
+ }
+}
+
+/** Get the properties assigned to a host */
+std::map<std::string, std::string>* Host::getProperties()
+{
+ return simgrid::simix::kernelImmediate([this] { return this->pimpl_->getProperties(); });
}
+
+/** Retrieve the property value (or nullptr if not set) */
+const char* Host::getProperty(const char* key)
+{
+ return this->pimpl_->getProperty(key);
+}
+
+void Host::setProperty(std::string key, std::string value)
+{
+ simgrid::simix::kernelImmediate([this, key, value] { this->pimpl_->setProperty(key, value); });
+}
+
+/** Get the processes attached to the host */
+void Host::getProcesses(std::vector<ActorPtr>* list)
+{
+ smx_actor_t actor = NULL;
+ xbt_swag_foreach(actor, this->extension<simgrid::simix::Host>()->process_list) {
+ list->push_back(actor->iface());
+ }
+}
+
+/** @brief Get the peak processor speed (in flops/s), at the specified pstate */
+double Host::getPstateSpeed(int pstate_index)
+{
+ return simgrid::simix::kernelImmediate([this, pstate_index] {
+ return this->pimpl_cpu->getPstateSpeed(pstate_index);
+ });
+}
+
+/** @brief Get the peak processor speed (in flops/s), at the current pstate */
+double Host::getSpeed()
+{
+ return pimpl_cpu->getSpeed(1.0);
+}
+
+/** @brief Returns the number of core of the processor. */
+int Host::getCoreCount()
+{
+ return pimpl_cpu->coreCount();
+}
+
+/** @brief Set the pstate at which the host should run */
+void Host::setPstate(int pstate_index)
+{
+ simgrid::simix::kernelImmediate([this, pstate_index] {
+ this->pimpl_cpu->setPState(pstate_index);
+ });
+}
+/** @brief Retrieve the pstate at which the host is currently running */
+int Host::getPstate()
+{
+ return this->pimpl_cpu->getPState();
+}
+
+/**
+ * \ingroup simix_storage_management
+ * \brief Returns the list of storages attached to an host.
+ * \return a vector containing all storages attached to the host
+ */
+void Host::getAttachedStorages(std::vector<const char*>* storages)
+{
+ simgrid::simix::kernelImmediate([this, storages] {
+ this->pimpl_->getAttachedStorageList(storages);
+ });
+}
+
+std::unordered_map<std::string, Storage*> const& Host::getMountedStorages()
+{
+ if (mounts == nullptr) {
+ mounts = new std::unordered_map<std::string, Storage*>();
+ for (auto const& m : this->pimpl_->storage_) {
+ mounts->insert({m.first, &m.second->piface_});
+ }
+ }
+ return *mounts;
+}
+
+void Host::execute(double flops)
+{
+ Host* host_list[1] = {this};
+ double flops_list[1] = {flops};
+ smx_activity_t s = simcall_execution_parallel_start(nullptr /*name*/, 1, host_list, flops_list,
+ nullptr /*comm_sizes */, -1.0, -1 /*timeout*/);
+ simcall_execution_wait(s);
+}
+
+} // namespace simgrid
+} // namespace s4u