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 size_t sg_host_count()
19 return xbt_dict_length(host_list);
21 /** @brief Returns the host list
23 * Uses sg_host_count() to know the array size.
25 * \return an array of \ref sg_host_t containing all the hosts in the platform.
26 * \remark The host order in this array is generally different from the
27 * creation/declaration order in the XML platform (we use a hash table
29 * \see sg_host_count()
31 sg_host_t *sg_host_list() {
32 xbt_assert(sg_host_count() > 0, "There is no host!");
33 return (sg_host_t*)xbt_dynar_to_array(sg_hosts_as_dynar());
36 const char *sg_host_get_name(sg_host_t host)
38 return host->name().c_str();
41 void* sg_host_extension_get(sg_host_t host, size_t ext)
43 return host->extension(ext);
46 size_t sg_host_extension_create(void(*deleter)(void*))
48 return simgrid::s4u::Host::extension_create(deleter);
51 sg_host_t sg_host_by_name(const char *name)
53 return simgrid::s4u::Host::by_name_or_null(name);
56 xbt_dynar_t sg_hosts_as_dynar()
58 xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t),nullptr);
60 xbt_dict_cursor_t cursor = nullptr;
61 const char* name = nullptr;
62 simgrid::s4u::Host* host = nullptr;
63 xbt_dict_foreach(host_list, cursor, name, host)
64 if (host && host->pimpl_netcard && host->pimpl_netcard->isHost())
65 xbt_dynar_push(res, &host);
69 // ========= Layering madness ==============*
71 #include "src/surf/cpu_interface.hpp"
72 #include "src/surf/surf_routing.hpp"
74 // ========== User data Layer ==========
75 void *sg_host_user(sg_host_t host) {
76 return host->extension(USER_HOST_LEVEL);
78 void sg_host_user_set(sg_host_t host, void* userdata) {
79 host->extension_set(USER_HOST_LEVEL,userdata);
81 void sg_host_user_destroy(sg_host_t host) {
82 host->extension_set(USER_HOST_LEVEL, nullptr);
85 // ========== MSG Layer ==============
86 msg_host_priv_t sg_host_msg(sg_host_t host) {
87 return (msg_host_priv_t) host->extension(MSG_HOST_LEVEL);
89 void sg_host_msg_set(sg_host_t host, msg_host_priv_t smx_host) {
90 host->extension_set(MSG_HOST_LEVEL, smx_host);
93 // ========== Simix layer =============
94 #include "src/simix/smx_host_private.h"
95 smx_host_priv_t sg_host_simix(sg_host_t host){
96 return host->extension<simgrid::simix::Host>();
98 void sg_host_simix_set(sg_host_t host, smx_host_priv_t smx_host) {
99 host->extension_set<simgrid::simix::Host>(smx_host);
101 void sg_host_simix_destroy(sg_host_t host) {
102 host->extension_set<simgrid::simix::Host>(nullptr);
105 // ========= storage related functions ============
106 xbt_dict_t sg_host_get_mounted_storage_list(sg_host_t host){
107 return host->extension<simgrid::surf::HostImpl>()->getMountedStorageList();
110 xbt_dynar_t sg_host_get_attached_storage_list(sg_host_t host){
111 return host->extension<simgrid::surf::HostImpl>()->getAttachedStorageList();
115 // =========== user-level functions ===============
116 // ================================================
117 /** @brief Returns the total speed of a host */
118 double sg_host_speed(sg_host_t host)
120 return host->speed();
123 double sg_host_get_available_speed(sg_host_t host)
125 return host->pimpl_cpu->getAvailableSpeed();
128 /** @brief Returns the number of power states for a host.
130 * See also @ref SURF_plugin_energy.
132 int sg_host_get_nb_pstates(sg_host_t host) {
133 return host->pstatesCount();
136 /** @brief Gets the pstate at which that host currently runs.
138 * See also @ref SURF_plugin_energy.
140 int sg_host_get_pstate(sg_host_t host) {
141 return host->pstate();
143 /** @brief Sets the pstate at which that host should run.
145 * See also @ref SURF_plugin_energy.
147 void sg_host_set_pstate(sg_host_t host,int pstate) {
148 host->setPstate(pstate);
151 /** @brief Get the properties of an host */
152 xbt_dict_t sg_host_get_properties(sg_host_t host) {
153 return host->properties();
156 /** \ingroup m_host_management
157 * \brief Returns the value of a given host property
160 * \param name a property name
161 * \return value of a property (or nullptr if property not set)
163 const char *sg_host_get_property_value(sg_host_t host, const char *name)
165 return (const char*) xbt_dict_get_or_null(sg_host_get_properties(host), name);
168 /** @brief Displays debugging information about a host */
169 void sg_host_dump(sg_host_t host)
172 xbt_dict_cursor_t cursor=nullptr;
175 XBT_INFO("Displaying host %s", sg_host_get_name(host));
176 XBT_INFO(" - speed: %.0f", host->speed());
177 XBT_INFO(" - available speed: %.2f", sg_host_get_available_speed(host));
178 props = sg_host_get_properties(host);
180 if (!xbt_dict_is_empty(props)){
181 XBT_INFO(" - properties:");
183 xbt_dict_foreach(props,cursor,key,data) {
184 XBT_INFO(" %s->%s",key,data);