1 /* Copyright (c) 2013-2015. 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 <simgrid/Host.hpp>
11 #include "src/simix/smx_private.h"
12 #include "cpu_cas01.hpp"
13 #include "simgrid/sg_config.h"
15 #include "network_interface.hpp"
16 #include "virtual_machine.hpp"
18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf,
19 "Logging specific to the SURF host module");
21 simgrid::surf::HostModel *surf_host_model = NULL;
23 void host_add_traces(){
24 surf_host_model->addTraces();
34 simgrid::xbt::Extension<simgrid::Host, Host> Host::EXTENSION_ID;
40 /* Each VM has a dummy CPU action on the PM layer. This CPU action works as the
41 * constraint (capacity) of the VM in the PM layer. If the VM does not have any
42 * active task, the dummy CPU action must be deactivated, so that the VM does
43 * not get any CPU share in the PM layer. */
44 void HostModel::adjustWeightOfDummyCpuActions()
46 /* iterate for all virtual machines */
47 for (VMModel::vm_list_t::iterator iter =
48 VMModel::ws_vms.begin();
49 iter != VMModel::ws_vms.end(); ++iter) {
51 VirtualMachine *ws_vm = &*iter;
52 CpuCas01 *cpu_cas01 = static_cast<CpuCas01*>(ws_vm->p_cpu);
53 xbt_assert(cpu_cas01, "cpu-less host");
55 int is_active = lmm_constraint_used(cpu_cas01->getModel()->getMaxminSystem(), cpu_cas01->getConstraint());
56 // int is_active_old = constraint_is_active(cpu_cas01);
59 /* some tasks exist on this VM */
60 XBT_DEBUG("set the weight of the dummy CPU action on PM to 1");
62 /* FIXME: we should use lmm_update_variable_weight() ? */
63 /* FIXME: If we assign 1.05 and 0.05, the system makes apparently wrong values. */
64 ws_vm->p_action->setPriority(1);
67 /* no task exits on this VM */
68 XBT_DEBUG("set the weight of the dummy CPU action on PM to 0");
70 ws_vm->p_action->setPriority(0);
78 simgrid::surf::signal<void(simgrid::surf::Host*)> Host::onCreation;
79 simgrid::surf::signal<void(simgrid::surf::Host*)> Host::onDestruction;
80 simgrid::surf::signal<void(simgrid::surf::Host*, e_surf_resource_state_t, e_surf_resource_state_t)> Host::onStateChange;
82 void Host::classInit()
84 if (!EXTENSION_ID.valid()) {
85 EXTENSION_ID = simgrid::Host::extension_create<simgrid::surf::Host>([](void *h) {
86 static_cast<simgrid::surf::Host*>(h)->destroy();
88 SURF_HOST_LEVEL = EXTENSION_ID.id(); // FIXME: KILLME
92 Host::Host(simgrid::surf::Model *model, const char *name, xbt_dict_t props,
93 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu)
94 : Resource(model, name)
95 , PropertyHolder(props)
96 , p_storage(storage), p_netElm(netElm), p_cpu(cpu)
101 Host::Host(simgrid::surf::Model *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint,
102 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu)
103 : Resource(model, name, constraint)
104 , PropertyHolder(props)
105 , p_storage(storage), p_netElm(netElm), p_cpu(cpu)
107 p_params.ramsize = 0;
110 /** @brief use destroy() instead of this destructor */
113 xbt_assert(currentlyDestroying_, "Don't delete Hosts directly. Call destroy() instead.");
115 /** @brief Fire the require callbacks and destroy the object
117 * Don't delete directly an Host, call h->destroy() instead.
121 if (!currentlyDestroying_) {
122 currentlyDestroying_ = true;
128 void Host::attach(simgrid::Host* host)
130 if (p_host != nullptr)
131 xbt_die("Already attached to host %s", host->getName().c_str());
132 host->extension_set(this);
137 e_surf_resource_state_t Host::getState() {
138 return p_cpu->getState();
140 void Host::setState(e_surf_resource_state_t state){
141 e_surf_resource_state_t old = Resource::getState();
142 Resource::setState(state);
143 onStateChange(this, old, state);
144 p_cpu->setState(state);
147 Action *Host::execute(double size) {
148 return p_cpu->execute(size);
150 Action *Host::sleep(double duration) {
151 return p_cpu->sleep(duration);
155 simgrid::surf::Storage *Host::findStorageOnMountList(const char* mount)
157 simgrid::surf::Storage *st = NULL;
161 XBT_DEBUG("Search for storage name '%s' on '%s'", mount, getName());
162 xbt_dynar_foreach(p_storage,cursor,mnt)
164 XBT_DEBUG("See '%s'",mnt.name);
165 if(!strcmp(mount,mnt.name)){
166 st = static_cast<simgrid::surf::Storage*>(mnt.storage);
170 if(!st) xbt_die("Can't find mount '%s' for '%s'", mount, getName());
174 xbt_dict_t Host::getMountedStorageList()
178 xbt_dict_t storage_list = xbt_dict_new_homogeneous(NULL);
179 char *storage_name = NULL;
181 xbt_dynar_foreach(p_storage,i,mnt){
182 storage_name = (char *)static_cast<simgrid::surf::Storage*>(mnt.storage)->getName();
183 xbt_dict_set(storage_list,mnt.name,storage_name,NULL);
188 xbt_dynar_t Host::getAttachedStorageList()
190 xbt_lib_cursor_t cursor;
193 xbt_dynar_t result = xbt_dynar_new(sizeof(void*), NULL);
194 xbt_lib_foreach(storage_lib, cursor, key, data) {
195 if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
196 simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
197 if(!strcmp((const char*)storage->p_attach,this->getName())){
198 xbt_dynar_push_as(result, void *, (void*)storage->getName());
205 Action *Host::open(const char* fullpath) {
207 simgrid::surf::Storage *st = NULL;
210 size_t longest_prefix_length = 0;
212 char *file_mount_name = NULL;
213 char *mount_name = NULL;
215 XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, getName());
216 xbt_dynar_foreach(p_storage,cursor,mnt)
218 XBT_DEBUG("See '%s'",mnt.name);
219 file_mount_name = (char *) xbt_malloc ((strlen(mnt.name)+1));
220 strncpy(file_mount_name,fullpath,strlen(mnt.name)+1);
221 file_mount_name[strlen(mnt.name)] = '\0';
223 if(!strcmp(file_mount_name,mnt.name) && strlen(mnt.name)>longest_prefix_length)
224 {/* The current mount name is found in the full path and is bigger than the previous*/
225 longest_prefix_length = strlen(mnt.name);
226 st = static_cast<simgrid::surf::Storage*>(mnt.storage);
228 free(file_mount_name);
230 if(longest_prefix_length>0)
231 { /* Mount point found, split fullpath into mount_name and path+filename*/
232 path = (char *) xbt_malloc ((strlen(fullpath)-longest_prefix_length+1));
233 mount_name = (char *) xbt_malloc ((longest_prefix_length+1));
234 strncpy(mount_name, fullpath, longest_prefix_length+1);
235 strncpy(path, fullpath+longest_prefix_length, strlen(fullpath)-longest_prefix_length+1);
236 path[strlen(fullpath)-longest_prefix_length] = '\0';
237 mount_name[longest_prefix_length] = '\0';
240 xbt_die("Can't find mount point for '%s' on '%s'", fullpath, getName());
242 XBT_DEBUG("OPEN %s on disk '%s'",path, st->getName());
243 Action *action = st->open((const char*)mount_name, (const char*)path);
245 free((char*)mount_name);
249 Action *Host::close(surf_file_t fd) {
250 simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
251 XBT_DEBUG("CLOSE %s on disk '%s'",fd->name, st->getName());
252 return st->close(fd);
255 Action *Host::read(surf_file_t fd, sg_size_t size) {
256 simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
257 XBT_DEBUG("READ %s on disk '%s'",fd->name, st->getName());
258 return st->read(fd, size);
261 Action *Host::write(surf_file_t fd, sg_size_t size) {
262 simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
263 XBT_DEBUG("WRITE %s on disk '%s'",fd->name, st->getName());
264 return st->write(fd, size);
267 int Host::unlink(surf_file_t fd) {
269 XBT_WARN("No such file descriptor. Impossible to unlink");
273 simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
274 /* Check if the file is on this storage */
275 if (!xbt_dict_get_or_null(st->p_content, fd->name)){
276 XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name,
280 XBT_DEBUG("UNLINK %s on disk '%s'",fd->name, st->getName());
281 st->m_usedSize -= fd->size;
283 // Remove the file from storage
284 xbt_dict_remove(st->p_content, fd->name);
294 sg_size_t Host::getSize(surf_file_t fd){
298 xbt_dynar_t Host::getInfo( surf_file_t fd)
300 simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
301 sg_size_t *psize = xbt_new(sg_size_t, 1);
303 xbt_dynar_t info = xbt_dynar_new(sizeof(void*), NULL);
304 xbt_dynar_push_as(info, sg_size_t *, psize);
305 xbt_dynar_push_as(info, void *, fd->mount);
306 xbt_dynar_push_as(info, void *, (void *)st->getName());
307 xbt_dynar_push_as(info, void *, st->p_typeId);
308 xbt_dynar_push_as(info, void *, st->p_contentType);
313 sg_size_t Host::fileTell(surf_file_t fd){
314 return fd->current_position;
317 int Host::fileSeek(surf_file_t fd, sg_offset_t offset, int origin){
321 fd->current_position = offset;
324 fd->current_position += offset;
327 fd->current_position = fd->size + offset;
334 int Host::fileMove(surf_file_t fd, const char* fullpath){
335 /* Check if the new full path is on the same mount point */
336 if(!strncmp((const char*)fd->mount, fullpath, strlen(fd->mount))) {
337 sg_size_t *psize, *new_psize;
339 xbt_dict_get_or_null(findStorageOnMountList(fd->mount)->p_content,
341 new_psize = xbt_new(sg_size_t, 1);
343 if (psize){// src file exists
344 xbt_dict_remove(findStorageOnMountList(fd->mount)->p_content, fd->name);
345 char *path = (char *) xbt_malloc ((strlen(fullpath)-strlen(fd->mount)+1));
346 strncpy(path, fullpath+strlen(fd->mount),
347 strlen(fullpath)-strlen(fd->mount)+1);
348 xbt_dict_set(findStorageOnMountList(fd->mount)->p_content, path,
350 XBT_DEBUG("Move file from %s to %s, size '%llu'",fd->name, fullpath, *psize);
354 XBT_WARN("File %s doesn't exist", fd->name);
358 XBT_WARN("New full path %s is not on the same mount point: %s. Action has been canceled.",
359 fullpath, fd->mount);
364 xbt_dynar_t Host::getVms()
366 xbt_dynar_t dyn = xbt_dynar_new(sizeof(simgrid::surf::VirtualMachine*), NULL);
368 /* iterate for all virtual machines */
369 for (simgrid::surf::VMModel::vm_list_t::iterator iter =
370 simgrid::surf::VMModel::ws_vms.begin();
371 iter != simgrid::surf::VMModel::ws_vms.end(); ++iter) {
373 simgrid::surf::VirtualMachine *ws_vm = &*iter;
374 if (this == ws_vm->p_hostPM->extension(simgrid::surf::Host::EXTENSION_ID))
375 xbt_dynar_push(dyn, &ws_vm);
381 void Host::getParams(vm_params_t params)
386 void Host::setParams(vm_params_t params)
388 /* may check something here. */