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[s4u] Do not use containers of references
[simgrid.git] / src / s4u / s4u_host.cpp
index c9204c3..8701353 100644 (file)
 /* 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 <unordered_map>
+
+#include <simgrid/simix.hpp>
+
 #include "xbt/log.h"
-#include "msg/msg_private.h"
-#include "simix/smx_process_private.h"
+#include "src/msg/msg_private.h"
+#include "src/simix/smx_process_private.h"
+#include "src/simix/smx_private.hpp"
+#include "src/surf/cpu_interface.hpp"
+#include "src/surf/host_interface.hpp"
 
 #include "simgrid/s4u/host.hpp"
+#include "simgrid/s4u/storage.hpp"
 
-using namespace simgrid;
+int MSG_HOST_LEVEL;
+int SD_HOST_LEVEL;
+int SIMIX_HOST_LEVEL;
+int ROUTING_HOST_LEVEL;
+int USER_HOST_LEVEL;
 
-boost::unordered_map<std::string, simgrid::s4u::Host*> *simgrid::s4u::Host::hosts
-               = new boost::unordered_map<std::string, simgrid::s4u::Host*>();
+namespace simgrid {
+namespace s4u {
 
-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
+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)
+  : name_(name)
+{
 }
 
-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() {
+       if (mounts != NULL)
+               delete mounts;
+}
 
-       if (res==NULL) {
-               res = new s4u::Host(name.c_str());
-               hosts->insert({name,res});
-       }
-       return res;
+Host *Host::byName(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;
 }
-s4u::Host *s4u::Host::current(){
+
+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);
+}
 
-       return s4u::Host::byName(SIMIX_host_get_name(SIMIX_process_get_host(smx_proc)));
+void Host::turnOn() {
+       simgrid::simix::kernel(std::bind(SIMIX_host_on, this));
 }
 
-const char* s4u::Host::getName() {
-       return sg_host_name(p_sghost);
+void Host::turnOff() {
+       simgrid::simix::simcall<void>(SIMCALL_HOST_OFF, this);
 }
 
-void s4u::Host::turnOn() {
-       simcall_host_on(p_sghost);
+bool Host::isOn() {
+       return this->pimpl_cpu->isOn();
 }
-void s4u::Host::turnOff() {
-       simcall_host_off(p_sghost);
+
+int Host::getNbPStates() const {
+       return this->pimpl_cpu->getNbPStates();
 }
-bool s4u::Host::isOn() {
-       return simcall_host_get_state(p_sghost);
+
+boost::unordered_map<std::string, Storage*> &Host::mountedStorages() {
+       if (mounts == NULL) {
+               mounts = new boost::unordered_map<std::string, Storage*> ();
+
+               xbt_dict_t dict = this->getMountedStorageList();
+
+               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;
+}
+
+/** 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();
+       });
 }
+
+/** 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;
+  });
+}
+
+/** Get the peak power of a host */
+double Host::getCurrentPowerPeak()
+{
+  return simgrid::simix::kernel([&] {
+    return this->pimpl_cpu->getCurrentPowerPeak();
+  });
+}
+
+/** Get one power peak (in flops/s) of a host at a given pstate */
+double Host::getPowerPeakAt(int pstate_index)
+{
+  return simgrid::simix::kernel([&] {
+    return this->pimpl_cpu->getPowerPeakAt(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);
+}
+
+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 Set the pstate at which the host should run */
+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);
+  });
+}
+
+void Host::setParams(vm_params_t params)
+{
+  simgrid::simix::kernel([&]() {
+    this->extension<simgrid::surf::Host>()->setParams(params);
+  });
+}
+
+/**
+ * \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::getMountedStorageList()
+{
+  return simgrid::simix::kernel([&] {
+    return this->extension<simgrid::surf::Host>()->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::getAttachedStorageList()
+{
+  return simgrid::simix::kernel([&] {
+    return this->extension<simgrid::surf::Host>()->getAttachedStorageList();
+  });
+}
+
+} // namespace simgrid
+} // namespace s4u