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give simgrid::Host a p_cpu field instead of relying on extensions for non-optional...
[simgrid.git] / src / simgrid / host.cpp
1 /* Copyright (c) 2013-2015. The SimGrid Team.
2  * All rights reserved.                                                     */
3
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. */
6
7 #include "xbt/dict.h"
8 #include "simgrid/host.h"
9 #include "simgrid/Host.hpp"
10 #include "surf/surf.h" // routing_get_network_element_type FIXME:killme
11
12 size_t sg_host_count()
13 {
14   return xbt_dict_length(host_list);
15 }
16
17 const char *sg_host_get_name(sg_host_t host)
18 {
19         return host->getName().c_str();
20 }
21
22 void* sg_host_extension_get(sg_host_t host, size_t ext)
23 {
24   return host->extension(ext);
25 }
26
27 size_t sg_host_extension_create(void(*deleter)(void*))
28 {
29   return simgrid::Host::extension_create(deleter);
30 }
31
32 sg_host_t sg_host_by_name(const char *name)
33 {
34   return simgrid::Host::by_name_or_null(name);
35 }
36
37 sg_host_t sg_host_by_name_or_create(const char *name)
38 {
39   return simgrid::Host::by_name_or_create(name);
40 }
41
42 xbt_dynar_t sg_hosts_as_dynar(void)
43 {
44         xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t),NULL);
45
46   xbt_dict_cursor_t cursor = nullptr;
47   const char* name = nullptr;
48   simgrid::Host* host = nullptr;
49         xbt_dict_foreach(host_list, cursor, name, host)
50                 if(routing_get_network_element_type(name) == SURF_NETWORK_ELEMENT_HOST)
51                         xbt_dynar_push(res, &host);
52         return res;
53 }
54
55 // ========= Layering madness ==============
56
57 int MSG_HOST_LEVEL;
58 int SD_HOST_LEVEL;
59 int SIMIX_HOST_LEVEL;
60 int ROUTING_HOST_LEVEL;
61 int USER_HOST_LEVEL;
62
63 #include "src/msg/msg_private.h" // MSG_host_priv_free. FIXME: killme
64 #include "src/simdag/private.h" // __SD_workstation_destroy. FIXME: killme
65 #include "src/simix/smx_host_private.h" // SIMIX_host_destroy. FIXME: killme
66 #include "src/surf/cpu_interface.hpp"
67 #include "src/surf/surf_routing.hpp"
68
69 void sg_host_init()
70 {
71   MSG_HOST_LEVEL = simgrid::Host::extension_create([](void *p) {
72     __MSG_host_priv_free((msg_host_priv_t) p);
73   });
74
75   ROUTING_HOST_LEVEL = simgrid::Host::extension_create([](void *p) {
76           delete static_cast<simgrid::surf::RoutingEdge*>(p);
77   });
78
79   SD_HOST_LEVEL = simgrid::Host::extension_create(__SD_workstation_destroy);
80   SIMIX_HOST_LEVEL = simgrid::Host::extension_create(SIMIX_host_destroy);
81   USER_HOST_LEVEL = simgrid::Host::extension_create(NULL);
82 }
83
84 // ========== User data Layer ==========
85 void *sg_host_user(sg_host_t host) {
86   return host->extension(USER_HOST_LEVEL);
87 }
88 void sg_host_user_set(sg_host_t host, void* userdata) {
89   host->extension_set(USER_HOST_LEVEL,userdata);
90 }
91 void sg_host_user_destroy(sg_host_t host) {
92   host->extension_set(USER_HOST_LEVEL, nullptr);
93 }
94
95 // ========== MSG Layer ==============
96 msg_host_priv_t sg_host_msg(sg_host_t host) {
97         return (msg_host_priv_t) host->extension(MSG_HOST_LEVEL);
98 }
99 void sg_host_msg_set(sg_host_t host, msg_host_priv_t smx_host) {
100   host->extension_set(MSG_HOST_LEVEL, smx_host);
101 }
102 void sg_host_msg_destroy(sg_host_t host) {
103   host->extension_set(MSG_HOST_LEVEL, nullptr);
104 }
105 // ========== SimDag Layer ==============
106 SD_workstation_priv_t sg_host_sd(sg_host_t host) {
107   return (SD_workstation_priv_t) host->extension(SD_HOST_LEVEL);
108 }
109 void sg_host_sd_set(sg_host_t host, SD_workstation_priv_t smx_host) {
110   host->extension_set(SD_HOST_LEVEL, smx_host);
111 }
112 void sg_host_sd_destroy(sg_host_t host) {
113   host->extension_set(SD_HOST_LEVEL, nullptr);
114 }
115
116 // ========== Simix layer =============
117 smx_host_priv_t sg_host_simix(sg_host_t host){
118   return (smx_host_priv_t) host->extension(SIMIX_HOST_LEVEL);
119 }
120 void sg_host_simix_set(sg_host_t host, smx_host_priv_t smx_host) {
121   host->extension_set(SIMIX_HOST_LEVEL, smx_host);
122 }
123 void sg_host_simix_destroy(sg_host_t host) {
124   host->extension_set(SIMIX_HOST_LEVEL, nullptr);
125 }
126
127 // ========== SURF CPU ============
128 surf_cpu_t sg_host_surfcpu(sg_host_t host) {
129         return host->p_cpu;
130 }
131 void sg_host_surfcpu_set(sg_host_t host, surf_cpu_t cpu) {
132   host->p_cpu = cpu;
133 }
134 void sg_host_surfcpu_destroy(sg_host_t host) {
135   host->p_cpu = nullptr;
136 }
137 // ========== RoutingEdge ============
138 surf_RoutingEdge *sg_host_edge(sg_host_t host) {
139         return (surf_RoutingEdge*) host->extension(ROUTING_HOST_LEVEL);
140 }
141 void sg_host_edge_set(sg_host_t host, surf_RoutingEdge *edge) {
142   host->extension_set(ROUTING_HOST_LEVEL, edge);
143 }
144 void sg_host_edge_destroy(sg_host_t host, int do_callback) {
145   host->extension_set(ROUTING_HOST_LEVEL, nullptr, do_callback);
146 }
147
148 // =========== user-level functions ===============
149 // ================================================
150 double sg_host_get_speed(sg_host_t host){
151   return surf_host_get_speed(host, 1.0);
152 }
153
154 double sg_host_get_available_speed(sg_host_t host){
155   return surf_host_get_available_speed(host);
156 }
157 /** @brief Returns the number of core of the processor. */
158 int sg_host_get_core(sg_host_t host) {
159         return surf_host_get_core(host);
160 }
161 /** @brief Returns the state of a host.
162  *  @return 1 if the host is active or 0 if it has crashed.
163  */
164 int sg_host_get_state(sg_host_t host) {
165         return surf_host_get_state(surf_host_resource_priv(host));
166 }
167
168 /** @brief Returns the total energy consumed by the host (in Joules).
169  *
170  *  See also @ref SURF_plugin_energy.
171  */
172 double sg_host_get_consumed_energy(sg_host_t host) {
173         return surf_host_get_consumed_energy(host);
174 }
175
176 /** @brief Returns the number of power states for a host.
177  *
178  *  See also @ref SURF_plugin_energy.
179  */
180 int sg_host_get_nb_pstates(sg_host_t host) {
181         return surf_host_get_nb_pstates(host);
182 }
183
184 /** @brief Gets the pstate at which that host currently runs.
185  *
186  *  See also @ref SURF_plugin_energy.
187  */
188 int sg_host_get_pstate(sg_host_t host) {
189         return surf_host_get_pstate(host);
190 }
191
192 namespace simgrid {
193
194 Host::Host(std::string const& id)
195   : name_(id)
196 {
197 }
198
199 Host::~Host()
200 {
201 }
202
203 Host* Host::by_name_or_null(const char* name)
204 {
205   return (Host*) xbt_dict_get_or_null(host_list, name);
206 }
207
208 Host* Host::by_name_or_create(const char* name)
209 {
210   Host* host = by_name_or_null(name);
211   if (host == nullptr) {
212     host = new Host(name);
213     xbt_dict_set(host_list, name, host, NULL);
214   }
215   return host;
216 }
217
218 }