1 /* Copyright (c) 2013-2016. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "simgrid/host.h"
9 #include <xbt/Extendable.hpp>
10 #include <simgrid/s4u/host.hpp>
12 #include "src/surf/HostImpl.hpp"
13 #include "surf/surf.h" // routing_get_network_element_type FIXME:killme
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sg_host, sd, "Logging specific to sg_hosts");
17 extern std::unordered_map<simgrid::xbt::string, simgrid::s4u::Host*>
18 host_list; // FIXME: don't dupplicate the content of s4u::Host this way
25 size_t sg_host_count()
27 return host_list.size();
29 /** @brief Returns the host list
31 * Uses sg_host_count() to know the array size.
33 * \return an array of \ref sg_host_t containing all the hosts in the platform.
34 * \remark The host order in this array is generally different from the
35 * creation/declaration order in the XML platform (we use a hash table
37 * \see sg_host_count()
39 sg_host_t *sg_host_list() {
40 xbt_assert(sg_host_count() > 0, "There is no host!");
41 return (sg_host_t*)xbt_dynar_to_array(sg_hosts_as_dynar());
44 const char *sg_host_get_name(sg_host_t host)
46 return host->name().c_str();
49 void* sg_host_extension_get(sg_host_t host, size_t ext)
51 return host->extension(ext);
54 size_t sg_host_extension_create(void(*deleter)(void*))
56 return simgrid::s4u::Host::extension_create(deleter);
59 sg_host_t sg_host_by_name(const char *name)
61 return simgrid::s4u::Host::by_name_or_null(name);
64 static int hostcmp_voidp(const void* pa, const void* pb)
66 return strcmp((*static_cast<simgrid::s4u::Host* const*>(pa))->name().c_str(),
67 (*static_cast<simgrid::s4u::Host* const*>(pb))->name().c_str());
70 xbt_dynar_t sg_hosts_as_dynar()
72 xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t),nullptr);
74 for (auto kv : host_list) {
75 simgrid::s4u::Host* host = kv.second;
76 if (host && host->pimpl_netcard && host->pimpl_netcard->isHost())
77 xbt_dynar_push(res, &host);
79 xbt_dynar_sort(res, hostcmp_voidp);
83 // ========= Layering madness ==============*
85 #include "src/surf/cpu_interface.hpp"
86 #include "src/surf/surf_routing.hpp"
88 // ========== User data Layer ==========
89 void *sg_host_user(sg_host_t host) {
90 return host->extension(USER_HOST_LEVEL);
92 void sg_host_user_set(sg_host_t host, void* userdata) {
93 host->extension_set(USER_HOST_LEVEL,userdata);
95 void sg_host_user_destroy(sg_host_t host) {
96 host->extension_set(USER_HOST_LEVEL, nullptr);
99 // ========== MSG Layer ==============
100 msg_host_priv_t sg_host_msg(sg_host_t host) {
101 return (msg_host_priv_t) host->extension(MSG_HOST_LEVEL);
103 void sg_host_msg_set(sg_host_t host, msg_host_priv_t smx_host) {
104 host->extension_set(MSG_HOST_LEVEL, smx_host);
107 // ========== Simix layer =============
108 #include "src/simix/smx_host_private.h"
109 smx_host_priv_t sg_host_simix(sg_host_t host){
110 return host->extension<simgrid::simix::Host>();
113 // ========= storage related functions ============
114 xbt_dict_t sg_host_get_mounted_storage_list(sg_host_t host){
115 return host->pimpl_->getMountedStorageList();
118 xbt_dynar_t sg_host_get_attached_storage_list(sg_host_t host){
119 return host->pimpl_->getAttachedStorageList();
123 // =========== user-level functions ===============
124 // ================================================
125 /** @brief Returns the total speed of a host */
126 double sg_host_speed(sg_host_t host)
128 return host->speed();
131 double sg_host_get_available_speed(sg_host_t host)
133 return host->pimpl_cpu->getAvailableSpeed();
136 /** @brief Returns the number of power states for a host.
138 * See also @ref SURF_plugin_energy.
140 int sg_host_get_nb_pstates(sg_host_t host) {
141 return host->pstatesCount();
144 /** @brief Gets the pstate at which that host currently runs.
146 * See also @ref SURF_plugin_energy.
148 int sg_host_get_pstate(sg_host_t host) {
149 return host->pstate();
151 /** @brief Sets the pstate at which that host should run.
153 * See also @ref SURF_plugin_energy.
155 void sg_host_set_pstate(sg_host_t host,int pstate) {
156 host->setPstate(pstate);
159 /** @brief Get the properties of an host */
160 xbt_dict_t sg_host_get_properties(sg_host_t host) {
161 return host->properties();
164 /** \ingroup m_host_management
165 * \brief Returns the value of a given host property
168 * \param name a property name
169 * \return value of a property (or nullptr if property not set)
171 const char *sg_host_get_property_value(sg_host_t host, const char *name)
173 return (const char*) xbt_dict_get_or_null(sg_host_get_properties(host), name);
176 /** @brief Displays debugging information about a host */
177 void sg_host_dump(sg_host_t host)
180 xbt_dict_cursor_t cursor=nullptr;
183 XBT_INFO("Displaying host %s", sg_host_get_name(host));
184 XBT_INFO(" - speed: %.0f", host->speed());
185 XBT_INFO(" - available speed: %.2f", sg_host_get_available_speed(host));
186 props = sg_host_get_properties(host);
188 if (!xbt_dict_is_empty(props)){
189 XBT_INFO(" - properties:");
191 xbt_dict_foreach(props,cursor,key,data) {
192 XBT_INFO(" %s->%s",key,data);