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 smx_host_priv_t sg_host_simix(sg_host_t host){
95 return (smx_host_priv_t) host->extension(SIMIX_HOST_LEVEL);
97 void sg_host_simix_set(sg_host_t host, smx_host_priv_t smx_host) {
98 host->extension_set(SIMIX_HOST_LEVEL, smx_host);
100 void sg_host_simix_destroy(sg_host_t host) {
101 host->extension_set(SIMIX_HOST_LEVEL, nullptr);
104 // ========= storage related functions ============
105 xbt_dict_t sg_host_get_mounted_storage_list(sg_host_t host){
106 return host->extension<simgrid::surf::HostImpl>()->getMountedStorageList();
109 xbt_dynar_t sg_host_get_attached_storage_list(sg_host_t host){
110 return host->extension<simgrid::surf::HostImpl>()->getAttachedStorageList();
114 // =========== user-level functions ===============
115 // ================================================
116 /** @brief Returns the total speed of a host */
117 double sg_host_speed(sg_host_t host)
119 return host->speed();
122 double sg_host_get_available_speed(sg_host_t host)
124 return host->pimpl_cpu->getAvailableSpeed();
127 /** @brief Returns the number of power states for a host.
129 * See also @ref SURF_plugin_energy.
131 int sg_host_get_nb_pstates(sg_host_t host) {
132 return host->pstatesCount();
135 /** @brief Gets the pstate at which that host currently runs.
137 * See also @ref SURF_plugin_energy.
139 int sg_host_get_pstate(sg_host_t host) {
140 return host->pstate();
142 /** @brief Sets the pstate at which that host should run.
144 * See also @ref SURF_plugin_energy.
146 void sg_host_set_pstate(sg_host_t host,int pstate) {
147 host->setPstate(pstate);
150 /** @brief Get the properties of an host */
151 xbt_dict_t sg_host_get_properties(sg_host_t host) {
152 return host->properties();
155 /** \ingroup m_host_management
156 * \brief Returns the value of a given host property
159 * \param name a property name
160 * \return value of a property (or nullptr if property not set)
162 const char *sg_host_get_property_value(sg_host_t host, const char *name)
164 return (const char*) xbt_dict_get_or_null(sg_host_get_properties(host), name);
167 /** @brief Displays debugging information about a host */
168 void sg_host_dump(sg_host_t host)
171 xbt_dict_cursor_t cursor=nullptr;
174 XBT_INFO("Displaying host %s", sg_host_get_name(host));
175 XBT_INFO(" - speed: %.0f", host->speed());
176 XBT_INFO(" - available speed: %.2f", sg_host_get_available_speed(host));
177 props = sg_host_get_properties(host);
179 if (!xbt_dict_is_empty(props)){
180 XBT_INFO(" - properties:");
182 xbt_dict_foreach(props,cursor,key,data) {
183 XBT_INFO(" %s->%s",key,data);