-/* 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 <functional>
#include <stdexcept>
-#include <unordered_map>
+#include <map>
-#include <simgrid/simix.hpp>
-
-#include "xbt/log.h"
+#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.h"
-#include "src/simix/smx_process_private.h"
-#include "src/simix/smx_private.hpp"
+#include "src/simix/ActorImpl.hpp"
+#include "src/simix/smx_private.h"
+#include "src/surf/HostImpl.hpp"
#include "src/surf/cpu_interface.hpp"
-#include "src/surf/host_interface.hpp"
+#include "xbt/log.h"
-#include "simgrid/s4u/host.hpp"
-#include "simgrid/s4u/storage.hpp"
+XBT_LOG_EXTERNAL_CATEGORY(surf_route);
+
+std::map<std::string, simgrid::s4u::Host*> host_list; // FIXME: move it to Engine
-int MSG_HOST_LEVEL;
-int SD_HOST_LEVEL;
-int SIMIX_HOST_LEVEL;
-int ROUTING_HOST_LEVEL;
-int USER_HOST_LEVEL;
+int USER_HOST_LEVEL = -1;
namespace simgrid {
+
+namespace xbt {
+template class Extendable<simgrid::s4u::Host>;
+}
+
namespace s4u {
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;
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);
+}
+
+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::instance()->netpointUnregister(pimpl_netpoint);
+ delete pimpl_cpu;
+ delete mounts;
}
-Host::~Host() {
- if (mounts != NULL)
- delete mounts;
+/** @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 (!currentlyDestroying_) {
+ currentlyDestroying_ = true;
+ onDestruction(*this);
+ host_list.erase(name_);
+ delete this;
+ }
}
-Host *Host::by_name(std::string name) {
- Host* host = Host::by_name_or_null(name.c_str());
- // TODO, raise an exception instead?
- if (host == nullptr)
- xbt_die("No such host: %s", name.c_str());
- return host;
+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)
+{
+ if (host_list.find(name) == host_list.end())
+ return nullptr;
+ return host_list.at(name);
}
Host *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 SIMIX_process_get_host(smx_proc);
+ 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 Host::turnOn() {
- simgrid::simix::kernel(std::bind(SIMIX_host_on, this));
+ if (isOff()) {
+ simgrid::simix::kernelImmediate([this] {
+ this->extension<simgrid::simix::Host>()->turnOn();
+ this->pimpl_cpu->turnOn();
+ onStateChange(*this);
+ });
+ }
}
void Host::turnOff() {
- simgrid::simix::simcall<void>(SIMCALL_HOST_OFF, this);
+ if (isOn()) {
+ smx_actor_t self = SIMIX_process_self();
+ simgrid::simix::kernelImmediate([this, self] {
+ SIMIX_host_off(this, self);
+ onStateChange(*this);
+ });
+ }
}
bool Host::isOn() {
- return this->pimpl_cpu->isOn();
+ return this->pimpl_cpu->isOn();
}
-int Host::getNbPStates() const {
- return this->pimpl_cpu->getNbPStates();
+int Host::pstatesCount() const {
+ return this->pimpl_cpu->getNbPStates();
+}
+
+/**
+ * \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* 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):", cname(), dest->cname(),
+ (latency == nullptr ? -1 : *latency));
+ for (auto link : *links)
+ XBT_CDEBUG(surf_route, "Link %s", link->cname());
+ }
}
-boost::unordered_map<std::string, Storage*> &Host::mountedStorages() {
- if (mounts == NULL) {
- mounts = new boost::unordered_map<std::string, Storage*> ();
+boost::unordered_map<std::string, Storage*> const& Host::mountedStorages() {
+ if (mounts == nullptr) {
+ mounts = new boost::unordered_map<std::string, Storage*> ();
- xbt_dict_t dict = this->getMountedStorageList();
+ xbt_dict_t dict = this->mountedStoragesAsDict();
- xbt_dict_cursor_t cursor;
- char *mountname;
- char *storagename;
- xbt_dict_foreach(dict, cursor, mountname, storagename) {
- mounts->insert({mountname, &Storage::byName(storagename)});
- }
- xbt_dict_free(&dict);
- }
+ xbt_dict_cursor_t cursor;
+ char *mountname;
+ char *storagename;
+ xbt_dict_foreach(dict, cursor, mountname, storagename) {
+ mounts->insert({mountname, &Storage::byName(storagename)});
+ }
+ xbt_dict_free(&dict);
+ }
- return *mounts;
+ return *mounts;
}
/** Get the properties assigned to a host */
-xbt_dict_t Host::getProperties() {
- return simgrid::simix::kernel([&] {
- simgrid::surf::Host* surf_host = this->extension<simgrid::surf::Host>();
- return surf_host->getProperties();
- });
+xbt_dict_t Host::properties() {
+ return simgrid::simix::kernelImmediate([this] {
+ return this->pimpl_->getProperties();
+ });
}
-/** Get the processes attached to the host */
-xbt_swag_t Host::getProcessList()
-{
- return simgrid::simix::kernel([&]() {
- return ((smx_host_priv_t)this->extension(SIMIX_HOST_LEVEL))->process_list;
+/** Retrieve the property value (or nullptr if not set) */
+const char*Host::property(const char*key) {
+ return this->pimpl_->getProperty(key);
+}
+void Host::setProperty(const char*key, const char *value){
+ simgrid::simix::kernelImmediate([this, key, value] {
+ this->pimpl_->setProperty(key, value);
});
}
-/** Get the peak power of a host */
-double Host::getCurrentPowerPeak()
+/** Get the processes attached to the host */
+void Host::processes(std::vector<ActorPtr>* list)
{
- return simgrid::simix::kernel([&] {
- return this->pimpl_cpu->getCurrentPowerPeak();
- });
+ smx_actor_t actor = NULL;
+ xbt_swag_foreach(actor, this->extension<simgrid::simix::Host>()->process_list) {
+ list->push_back(actor->iface());
+ }
}
-/** Get one power peak (in flops/s) of a host at a given pstate */
-double Host::getPowerPeakAt(int pstate_index)
+/** @brief Get the peak processor speed (in flops/s), at the specified pstate */
+double Host::getPstateSpeed(int pstate_index)
{
- return simgrid::simix::kernel([&] {
- return this->pimpl_cpu->getPowerPeakAt(pstate_index);
+ return simgrid::simix::kernelImmediate([this, pstate_index] {
+ return this->pimpl_cpu->getPstateSpeed(pstate_index);
});
}
-/** @brief Get the speed of the cpu associated to a host */
-double Host::getSpeed() {
- return pimpl_cpu->getSpeed(1.0);
-}
-/** @brief Returns the number of core of the processor. */
-int Host::getCoreAmount() {
- return pimpl_cpu->getCore();
-}
-
-Host* Host::by_name_or_null(const char* name)
-{
- return (Host*) xbt_dict_get_or_null(host_list, name);
+/** @brief Get the peak processor speed (in flops/s), at the current pstate */
+double Host::speed() {
+ return pimpl_cpu->getSpeed(1.0);
}
-Host* Host::by_name_or_create(const char* name)
-{
- Host* host = by_name_or_null(name);
- if (host == nullptr) {
- host = new Host(name);
- xbt_dict_set(host_list, name, host, NULL);
- }
- return host;
+/** @brief Returns the number of core of the processor. */
+int Host::coreCount() {
+ return pimpl_cpu->coreCount();
}
/** @brief Set the pstate at which the host should run */
-void Host::setPState(int pstate_index)
+void Host::setPstate(int pstate_index)
{
- simgrid::simix::kernel(std::bind(
- &simgrid::surf::Cpu::setPState, pimpl_cpu, pstate_index
- ));
-}
-/** @brief Retrieve the pstate at which the host is currently running */
-int Host::getPState()
-{
- return pimpl_cpu->getPState();
-}
-
-void Host::getParams(vm_params_t params)
-{
- simgrid::simix::kernel([&]() {
- this->extension<simgrid::surf::Host>()->getParams(params);
+ simgrid::simix::kernelImmediate([this, pstate_index] {
+ this->pimpl_cpu->setPState(pstate_index);
});
}
-
-void Host::setParams(vm_params_t params)
+/** @brief Retrieve the pstate at which the host is currently running */
+int Host::pstate()
{
- simgrid::simix::kernel([&]() {
- this->extension<simgrid::surf::Host>()->setParams(params);
- });
+ return this->pimpl_cpu->getPState();
}
/**
* \brief Returns the list of storages mounted on an host.
* \return a dict containing all storages mounted on the host
*/
-xbt_dict_t Host::getMountedStorageList()
+xbt_dict_t Host::mountedStoragesAsDict()
{
- return simgrid::simix::kernel([&] {
- return this->extension<simgrid::surf::Host>()->getMountedStorageList();
+ return simgrid::simix::kernelImmediate([this] {
+ return this->pimpl_->getMountedStorageList();
});
}
* \brief Returns the list of storages attached to an host.
* \return a dict containing all storages attached to the host
*/
-xbt_dynar_t Host::getAttachedStorageList()
+void Host::attachedStorages(std::vector<const char*>* storages)
{
- return simgrid::simix::kernel([&] {
- return this->extension<simgrid::surf::Host>()->getAttachedStorageList();
+ simgrid::simix::kernelImmediate([this, storages] {
+ this->pimpl_->getAttachedStorageList(storages);
});
}
