/* 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 "xbt/log.h"
-#include "msg/msg_private.h"
-#include "simix/smx_process_private.h"
+#include <string>
+#include <functional>
+#include <stdexcept>
+
+#include <unordered_map>
#include "simgrid/s4u/host.hpp"
#include "simgrid/s4u/storage.hpp"
+#include "simgrid/simix.hpp"
+#include "src/kernel/routing/NetCard.hpp"
+#include "src/msg/msg_private.h"
+#include "src/simix/ActorImpl.hpp"
+#include "src/simix/smx_private.h"
+#include "src/surf/HostImpl.hpp"
+#include "src/surf/cpu_interface.hpp"
+#include "xbt/log.h"
+
+XBT_LOG_EXTERNAL_CATEGORY(surf_route);
+
+std::unordered_map<std::string, simgrid::s4u::Host*> host_list; // FIXME: move it to Engine
+
+int MSG_HOST_LEVEL = -1;
+int USER_HOST_LEVEL = -1;
namespace simgrid {
+
+namespace xbt {
+template class Extendable<simgrid::s4u::Host>;
+}
+
namespace s4u {
-boost::unordered_map<std::string, Host*> *Host::hosts
- = new boost::unordered_map<std::string, Host*>();
+simgrid::xbt::signal<void(Host&)> Host::onCreation;
+simgrid::xbt::signal<void(Host&)> Host::onDestruction;
+simgrid::xbt::signal<void(Host&)> Host::onStateChange;
-Host::Host(const char*name) {
- p_inferior = sg_host_by_name(name);
- if (p_inferior==NULL)
- xbt_die("No such host: %s",name); //FIXME: raise an exception
-}
-Host::~Host() {
- if (mounts != NULL)
- delete mounts;
+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;
}
-Host *Host::byName(std::string name) {
- 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.");
- if (res==NULL) {
- res = new Host(name.c_str());
- hosts->insert({name,res});
- }
- return res;
+ delete pimpl_;
+ delete pimpl_cpu;
+ delete pimpl_netcard;
+ delete mounts;
}
-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 Host::byName(SIMIX_host_get_name(SIMIX_process_get_host(smx_proc)));
+/** @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;
+ }
}
-const char* Host::name() {
- return sg_host_name(p_inferior);
+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_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() {
- simcall_host_on(p_inferior);
+ if (isOff()) {
+ simgrid::simix::kernelImmediate([&]{
+ this->extension<simgrid::simix::Host>()->turnOn();
+ this->pimpl_cpu->turnOn();
+ });
+ }
}
+
void Host::turnOff() {
- simcall_host_off(p_inferior);
+ if (isOn()) {
+ simgrid::simix::kernelImmediate(std::bind(SIMIX_host_off, this, SIMIX_process_self()));
+ }
}
+
bool Host::isOn() {
- return simcall_host_get_state(p_inferior);
+ return this->pimpl_cpu->isOn();
+}
+
+int Host::pstatesCount() const {
+ return this->pimpl_cpu->getNbPStates();
+}
+
+/**
+ * \brief Find a route toward another host
+ *
+ * \param dest [IN] where to
+ * \param route [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 route!=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)
+{
+ simgrid::kernel::routing::NetZoneImpl::getGlobalRoute(pimpl_netcard, dest->pimpl_netcard, 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->getName());
+ }
}
-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->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_t dict = simcall_host_get_mounted_storage_list(p_inferior);
+ return *mounts;
+}
- 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);
- }
+/** Get the properties assigned to a host */
+xbt_dict_t Host::properties() {
+ return simgrid::simix::kernelImmediate([&] { return this->pimpl_->getProperties(); });
+}
- return *mounts;
+/** 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->pimpl_->setProperty(key, value); });
}
+/** Get the processes attached to the host */
+xbt_swag_t Host::processes()
+{
+ return simgrid::simix::kernelImmediate([&]() {
+ return this->extension<simgrid::simix::Host>()->process_list;
+ });
+}
+
+/** Get the peak power of a host */
+double Host::getPstateSpeedCurrent()
+{
+ return simgrid::simix::kernelImmediate([&] {
+ return this->pimpl_cpu->getPstateSpeedCurrent();
+ });
+}
+
+/** Get one power peak (in flops/s) of a host at a given pstate */
+double Host::getPstateSpeed(int pstate_index)
+{
+ return simgrid::simix::kernelImmediate([&] {
+ return this->pimpl_cpu->getPstateSpeed(pstate_index);
+ });
+}
+
+/** @brief Get the speed of the cpu associated to a host */
+double Host::speed() {
+ return pimpl_cpu->getSpeed(1.0);
+}
+/** @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)
+{
+ simgrid::simix::kernelImmediate(std::bind(
+ &simgrid::surf::Cpu::setPState, pimpl_cpu, pstate_index
+ ));
+}
+/** @brief Retrieve the pstate at which the host is currently running */
+int Host::pstate()
+{
+ return pimpl_cpu->getPState();
+}
+
+/**
+ * \ingroup simix_storage_management
+ * \brief Returns the list of storages mounted on an host.
+ * \return a dict containing all storages mounted on the host
+ */
+xbt_dict_t Host::mountedStoragesAsDict()
+{
+ return simgrid::simix::kernelImmediate([&] { return this->pimpl_->getMountedStorageList(); });
+}
+
+/**
+ * \ingroup simix_storage_management
+ * \brief Returns the list of storages attached to an host.
+ * \return a dict containing all storages attached to the host
+ */
+xbt_dynar_t Host::attachedStorages()
+{
+ return simgrid::simix::kernelImmediate([&] { return this->pimpl_->getAttachedStorageList(); });
+}
} // namespace simgrid
} // namespace s4u
