1 /* Copyright (c) 2013-2014. 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. */
7 #include "host_interface.hpp"
9 #include "simix/smx_private.h"
10 #include "cpu_cas01.hpp"
11 #include "simgrid/sg_config.h"
13 #include "network_interface.hpp"
14 #include "vm_interface.hpp"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf,
17 "Logging specific to the SURF host module");
19 HostModel *surf_host_model = NULL;
25 surf_callback(void, Host*) hostCreatedCallbacks;
26 surf_callback(void, Host*) hostDestructedCallbacks;
27 surf_callback(void, Host*, e_surf_resource_state_t, e_surf_resource_state_t) hostStateChangedCallbacks;
28 surf_callback(void, HostAction*, e_surf_action_state_t, e_surf_action_state_t) hostActionStateChangedCallbacks;
30 void host_parse_init(sg_platf_host_cbarg_t host)
32 surf_host_model->createHost(host->id);
35 void host_add_traces(){
36 surf_host_model->addTraces();
42 HostModel::HostModel(const char *name)
46 HostModel::HostModel()
49 HostModel::~HostModel() {
52 /* Each VM has a dummy CPU action on the PM layer. This CPU action works as the
53 * constraint (capacity) of the VM in the PM layer. If the VM does not have any
54 * active task, the dummy CPU action must be deactivated, so that the VM does
55 * not get any CPU share in the PM layer. */
56 void HostModel::adjustWeightOfDummyCpuActions()
58 /* iterate for all virtual machines */
59 for (VMModel::vm_list_t::iterator iter =
60 VMModel::ws_vms.begin();
61 iter != VMModel::ws_vms.end(); ++iter) {
64 CpuCas01 *cpu_cas01 = static_cast<CpuCas01*>(ws_vm->p_cpu);
65 xbt_assert(cpu_cas01, "cpu-less host");
67 int is_active = lmm_constraint_used(cpu_cas01->getModel()->getMaxminSystem(), cpu_cas01->getConstraint());
68 // int is_active_old = constraint_is_active(cpu_cas01);
71 /* some tasks exist on this VM */
72 XBT_DEBUG("set the weight of the dummy CPU action on PM to 1");
74 /* FIXME: we should use lmm_update_variable_weight() ? */
75 /* FIXME: If we assign 1.05 and 0.05, the system makes apparently wrong values. */
76 ws_vm->p_action->setPriority(1);
79 /* no task exits on this VM */
80 XBT_DEBUG("set the weight of the dummy CPU action on PM to 0");
82 ws_vm->p_action->setPriority(0);
90 Host::Host(Model *model, const char *name, xbt_dict_t props,
91 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu)
92 : Resource(model, name, props)
93 , p_storage(storage), p_netElm(netElm), p_cpu(cpu)
96 surf_callback_emit(hostCreatedCallbacks, this);
99 Host::Host(Model *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint,
100 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu)
101 : Resource(model, name, props, constraint)
102 , p_storage(storage), p_netElm(netElm), p_cpu(cpu)
104 p_params.ramsize = 0;
105 surf_callback_emit(hostCreatedCallbacks, this);
109 surf_callback_emit(hostDestructedCallbacks, this);
112 void Host::setState(e_surf_resource_state_t state){
113 e_surf_resource_state_t old = Resource::getState();
114 Resource::setState(state);
115 surf_callback_emit(hostStateChangedCallbacks, this, old, state);
116 p_cpu->setState(state);
120 return p_cpu->getCore();
123 double Host::getSpeed(double load){
124 return p_cpu->getSpeed(load);
127 double Host::getAvailableSpeed(){
128 return p_cpu->getAvailableSpeed();
131 double Host::getCurrentPowerPeak()
133 return p_cpu->getCurrentPowerPeak();
136 double Host::getPowerPeakAt(int pstate_index)
138 return p_cpu->getPowerPeakAt(pstate_index);
141 int Host::getNbPstates()
143 return p_cpu->getNbPstates();
146 void Host::setPstate(int pstate_index)
148 p_cpu->setPstate(pstate_index);
150 int Host::getPstate()
152 return p_cpu->getPstate();
155 xbt_dict_t Host::getProperties()
157 return p_cpu->getProperties();
160 Storage *Host::findStorageOnMountList(const char* mount)
166 XBT_DEBUG("Search for storage name '%s' on '%s'", mount, getName());
167 xbt_dynar_foreach(p_storage,cursor,mnt)
169 XBT_DEBUG("See '%s'",mnt.name);
170 if(!strcmp(mount,mnt.name)){
171 st = static_cast<Storage*>(mnt.storage);
175 if(!st) xbt_die("Can't find mount '%s' for '%s'", mount, getName());
179 xbt_dict_t Host::getMountedStorageList()
183 xbt_dict_t storage_list = xbt_dict_new_homogeneous(NULL);
184 char *storage_name = NULL;
186 xbt_dynar_foreach(p_storage,i,mnt){
187 storage_name = (char *)static_cast<Storage*>(mnt.storage)->getName();
188 xbt_dict_set(storage_list,mnt.name,storage_name,NULL);
193 xbt_dynar_t Host::getAttachedStorageList()
195 xbt_lib_cursor_t cursor;
198 xbt_dynar_t result = xbt_dynar_new(sizeof(void*), NULL);
199 xbt_lib_foreach(storage_lib, cursor, key, data) {
200 if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
201 Storage *storage = static_cast<Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
202 if(!strcmp((const char*)storage->p_attach,this->getName())){
203 xbt_dynar_push_as(result, void *, (void*)storage->getName());
210 Action *Host::open(const char* fullpath) {
215 size_t longest_prefix_length = 0;
217 char *file_mount_name = NULL;
218 char *mount_name = NULL;
220 XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, getName());
221 xbt_dynar_foreach(p_storage,cursor,mnt)
223 XBT_DEBUG("See '%s'",mnt.name);
224 file_mount_name = (char *) xbt_malloc ((strlen(mnt.name)+1));
225 strncpy(file_mount_name,fullpath,strlen(mnt.name)+1);
226 file_mount_name[strlen(mnt.name)] = '\0';
228 if(!strcmp(file_mount_name,mnt.name) && strlen(mnt.name)>longest_prefix_length)
229 {/* The current mount name is found in the full path and is bigger than the previous*/
230 longest_prefix_length = strlen(mnt.name);
231 st = static_cast<Storage*>(mnt.storage);
233 free(file_mount_name);
235 if(longest_prefix_length>0)
236 { /* Mount point found, split fullpath into mount_name and path+filename*/
237 path = (char *) xbt_malloc ((strlen(fullpath)-longest_prefix_length+1));
238 mount_name = (char *) xbt_malloc ((longest_prefix_length+1));
239 strncpy(mount_name, fullpath, longest_prefix_length+1);
240 strncpy(path, fullpath+longest_prefix_length, strlen(fullpath)-longest_prefix_length+1);
241 path[strlen(fullpath)-longest_prefix_length] = '\0';
242 mount_name[longest_prefix_length] = '\0';
245 xbt_die("Can't find mount point for '%s' on '%s'", fullpath, getName());
247 XBT_DEBUG("OPEN %s on disk '%s'",path, st->getName());
248 Action *action = st->open((const char*)mount_name, (const char*)path);
250 free((char*)mount_name);
254 Action *Host::close(surf_file_t fd) {
255 Storage *st = findStorageOnMountList(fd->mount);
256 XBT_DEBUG("CLOSE %s on disk '%s'",fd->name, st->getName());
257 return st->close(fd);
260 Action *Host::read(surf_file_t fd, sg_size_t size) {
261 Storage *st = findStorageOnMountList(fd->mount);
262 XBT_DEBUG("READ %s on disk '%s'",fd->name, st->getName());
263 return st->read(fd, size);
266 Action *Host::write(surf_file_t fd, sg_size_t size) {
267 Storage *st = findStorageOnMountList(fd->mount);
268 XBT_DEBUG("WRITE %s on disk '%s'",fd->name, st->getName());
269 return st->write(fd, size);
272 int Host::unlink(surf_file_t fd) {
274 XBT_WARN("No such file descriptor. Impossible to unlink");
278 Storage *st = findStorageOnMountList(fd->mount);
279 /* Check if the file is on this storage */
280 if (!xbt_dict_get_or_null(st->p_content, fd->name)){
281 XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name,
285 XBT_DEBUG("UNLINK %s on disk '%s'",fd->name, st->getName());
286 st->m_usedSize -= fd->size;
288 // Remove the file from storage
289 xbt_dict_remove(st->p_content, fd->name);
299 sg_size_t Host::getSize(surf_file_t fd){
303 xbt_dynar_t Host::getInfo( surf_file_t fd)
305 Storage *st = findStorageOnMountList(fd->mount);
306 sg_size_t *psize = xbt_new(sg_size_t, 1);
308 xbt_dynar_t info = xbt_dynar_new(sizeof(void*), NULL);
309 xbt_dynar_push_as(info, sg_size_t *, psize);
310 xbt_dynar_push_as(info, void *, fd->mount);
311 xbt_dynar_push_as(info, void *, (void *)st->getName());
312 xbt_dynar_push_as(info, void *, st->p_typeId);
313 xbt_dynar_push_as(info, void *, st->p_contentType);
318 sg_size_t Host::fileTell(surf_file_t fd){
319 return fd->current_position;
322 int Host::fileSeek(surf_file_t fd, sg_offset_t offset, int origin){
326 fd->current_position = offset;
329 fd->current_position += offset;
332 fd->current_position = fd->size + offset;
339 int Host::fileMove(surf_file_t fd, const char* fullpath){
340 /* Check if the new full path is on the same mount point */
341 if(!strncmp((const char*)fd->mount, fullpath, strlen(fd->mount))) {
342 sg_size_t *psize, *new_psize;
344 xbt_dict_get_or_null(findStorageOnMountList(fd->mount)->p_content,
346 new_psize = xbt_new(sg_size_t, 1);
348 if (psize){// src file exists
349 xbt_dict_remove(findStorageOnMountList(fd->mount)->p_content, fd->name);
350 char *path = (char *) xbt_malloc ((strlen(fullpath)-strlen(fd->mount)+1));
351 strncpy(path, fullpath+strlen(fd->mount),
352 strlen(fullpath)-strlen(fd->mount)+1);
353 xbt_dict_set(findStorageOnMountList(fd->mount)->p_content, path,
355 XBT_DEBUG("Move file from %s to %s, size '%llu'",fd->name, fullpath, *psize);
359 XBT_WARN("File %s doesn't exist", fd->name);
363 XBT_WARN("New full path %s is not on the same mount point: %s. Action has been canceled.",
364 fullpath, fd->mount);
369 xbt_dynar_t Host::getVms()
371 xbt_dynar_t dyn = xbt_dynar_new(sizeof(VM*), NULL);
373 /* iterate for all virtual machines */
374 for (VMModel::vm_list_t::iterator iter =
375 VMModel::ws_vms.begin();
376 iter != VMModel::ws_vms.end(); ++iter) {
379 if (this == ws_vm->p_subWs)
380 xbt_dynar_push(dyn, &ws_vm);
386 void Host::getParams(ws_params_t params)
391 void Host::setParams(ws_params_t params)
393 /* may check something here. */
401 void HostAction::setState(e_surf_action_state_t state){
402 e_surf_action_state_t old = getState();
403 Action::setState(state);
404 surf_callback_emit(hostActionStateChangedCallbacks, this, old, state);