X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d785a64b1830b6a5d05561316ef7161ee1c67671..18bee871381a6ce670d9da211f43ab9b55fdc350:/src/surf/HostImpl.cpp

diff --git a/src/surf/HostImpl.cpp b/src/surf/HostImpl.cpp
index c7e5ec9a0d..3ffb283519 100644
--- a/src/surf/HostImpl.cpp
+++ b/src/surf/HostImpl.cpp
@@ -11,10 +11,9 @@
 #include "simgrid/sg_config.h"
 
 #include "network_interface.hpp"
-#include "virtual_machine.hpp"
+#include "src/plugins/vm/VirtualMachineImpl.hpp"
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf,
-                                "Logging specific to the SURF host module");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf, "Logging specific to the SURF host module");
 
 simgrid::surf::HostModel *surf_host_model = nullptr;
 
@@ -25,18 +24,9 @@ simgrid::surf::HostModel *surf_host_model = nullptr;
 namespace simgrid {
 namespace surf {
 
-simgrid::xbt::Extension<simgrid::s4u::Host, HostImpl> HostImpl::EXTENSION_ID;
-
 /*********
  * Model *
  *********/
-HostImpl *HostModel::createHost(const char *name, kernel::routing::NetCard *netElm, Cpu *cpu){
-  xbt_dynar_t storageList = (xbt_dynar_t)xbt_lib_get_or_null(storage_lib, name, ROUTING_STORAGE_HOST_LEVEL);
-
-  HostImpl *host = new simgrid::surf::HostImpl(surf_host_model, name, storageList, cpu);
-  XBT_DEBUG("Create host %s with %ld mounted disks", name, xbt_dynar_length(host->p_storage));
-  return host;
-}
 
 /* Each VM has a dummy CPU action on the PM layer. This CPU action works as the
  * constraint (capacity) of the VM in the PM layer. If the VM does not have any
@@ -45,12 +35,9 @@ HostImpl *HostModel::createHost(const char *name, kernel::routing::NetCard *netE
 void HostModel::adjustWeightOfDummyCpuActions()
 {
   /* iterate for all virtual machines */
-  for (VMModel::vm_list_t::iterator iter =
-         VMModel::ws_vms.begin();
-       iter !=  VMModel::ws_vms.end(); ++iter) {
+  for (s4u::VirtualMachine* ws_vm : vm::VirtualMachineImpl::allVms_) {
 
-    VirtualMachine *ws_vm = &*iter;
-    Cpu *cpu = ws_vm->p_cpu;
+    Cpu* cpu = ws_vm->pimpl_cpu;
 
     int is_active = lmm_constraint_used(cpu->getModel()->getMaxminSystem(), cpu->getConstraint());
 
@@ -60,37 +47,28 @@ void HostModel::adjustWeightOfDummyCpuActions()
 
       /* FIXME: we should use lmm_update_variable_weight() ? */
       /* FIXME: If we assign 1.05 and 0.05, the system makes apparently wrong values. */
-      ws_vm->action_->setPriority(1);
+      ws_vm->pimpl_vm_->action_->setPriority(1);
 
     } else {
       /* no task exits on this VM */
       XBT_DEBUG("set the weight of the dummy CPU action on PM to 0");
 
-      ws_vm->action_->setPriority(0);
+      ws_vm->pimpl_vm_->action_->setPriority(0);
     }
   }
 }
 
-Action *HostModel::executeParallelTask(int host_nb,
-    sg_host_t *host_list,
-    double *flops_amount,
-    double *bytes_amount,
-    double rate)
+Action* HostModel::executeParallelTask(int host_nb, simgrid::s4u::Host** host_list, double* flops_amount,
+                                       double* bytes_amount, double rate)
 {
 #define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
-  Action *action =nullptr;
-  if ((host_nb == 1)
-      && (cost_or_zero(bytes_amount, 0) == 0.0)){
+  Action* action = nullptr;
+  if ((host_nb == 1) && (cost_or_zero(bytes_amount, 0) == 0.0)) {
     action = host_list[0]->pimpl_cpu->execution_start(flops_amount[0]);
-  } else if ((host_nb == 1)
-           && (cost_or_zero(flops_amount, 0) == 0.0)) {
-    action = surf_network_model->communicate(host_list[0]->pimpl_netcard,
-                                         host_list[0]->pimpl_netcard,
-                       bytes_amount[0], rate);
-  } else if ((host_nb == 2)
-             && (cost_or_zero(flops_amount, 0) == 0.0)
-             && (cost_or_zero(flops_amount, 1) == 0.0)) {
-    int i,nb = 0;
+  } else if ((host_nb == 1) && (cost_or_zero(flops_amount, 0) == 0.0)) {
+    action = surf_network_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate);
+  } else if ((host_nb == 2) && (cost_or_zero(flops_amount, 0) == 0.0) && (cost_or_zero(flops_amount, 1) == 0.0)) {
+    int i, nb = 0;
     double value = 0.0;
 
     for (i = 0; i < host_nb * host_nb; i++) {
@@ -100,16 +78,18 @@ Action *HostModel::executeParallelTask(int host_nb,
       }
     }
     if (nb == 1) {
-      action = surf_network_model->communicate(host_list[0]->pimpl_netcard,
-					       host_list[1]->pimpl_netcard,
-					       value, rate);
+      action = surf_network_model->communicate(host_list[0], host_list[1], value, rate);
     } else if (nb == 0) {
-       xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the ptask model");
-    } else {       
-       xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider using the ptask model");
+      xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the "
+              "ptask model");
+    } else {
+      xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider "
+              "using the ptask model");
     }
-  } else 
-    xbt_die("This model only accepts one of the following. You should consider using the ptask model for the other cases.\n - execution with one host only and no communication\n - Self-comms with one host only\n - Communications with two hosts and no computation");
+  } else
+    xbt_die("This model only accepts one of the following. You should consider using the ptask model for the other "
+            "cases.\n - execution with one host only and no communication\n - Self-comms with one host only\n - "
+            "Communications with two hosts and no computation");
 #undef cost_or_zero
   xbt_free(host_list);
   return action;
@@ -118,80 +98,30 @@ Action *HostModel::executeParallelTask(int host_nb,
 /************
  * Resource *
  ************/
-
-
-void HostImpl::classInit()
-{
-  if (!EXTENSION_ID.valid()) {
-    EXTENSION_ID = simgrid::s4u::Host::extension_create<simgrid::surf::HostImpl>();
-  }
-}
-
-HostImpl::HostImpl(simgrid::surf::HostModel *model, const char *name, xbt_dynar_t storage, Cpu *cpu)
- : Resource(model, name)
- , PropertyHolder(nullptr)
- , p_storage(storage), p_cpu(cpu)
-{
-  p_params.ramsize = 0;
-}
-
-HostImpl::HostImpl(simgrid::surf::HostModel *model, const char *name, lmm_constraint_t constraint,
-                 xbt_dynar_t storage, Cpu *cpu)
- : Resource(model, name, constraint)
- , PropertyHolder(nullptr)
- , p_storage(storage), p_cpu(cpu)
+HostImpl::HostImpl(s4u::Host* host, xbt_dynar_t storage) : storage_(storage), piface_(host)
 {
-  p_params.ramsize = 0;
+  piface_->pimpl_ = this;
 }
 
 /** @brief use destroy() instead of this destructor */
-HostImpl::~HostImpl()
-{
-}
+HostImpl::~HostImpl() = default;
 
-void HostImpl::attach(simgrid::s4u::Host* host)
+simgrid::surf::Storage* HostImpl::findStorageOnMountList(const char* mount)
 {
-  if (piface != nullptr)
-    xbt_die("Already attached to host %s", host->name().c_str());
-  host->extension_set(this);
-  piface = host;
-}
-
-bool HostImpl::isOn() const {
-  return p_cpu->isOn();
-}
-bool HostImpl::isOff() const {
-  return p_cpu->isOff();
-}
-void HostImpl::turnOn(){
-  if (isOff()) {
-    p_cpu->turnOn();
-    simgrid::s4u::Host::onStateChange(*this->piface);
-  }
-}
-void HostImpl::turnOff(){
-  if (isOn()) {
-    p_cpu->turnOff();
-    simgrid::s4u::Host::onStateChange(*this->piface);
-  }
-}
-
-simgrid::surf::Storage *HostImpl::findStorageOnMountList(const char* mount)
-{
-  simgrid::surf::Storage *st = nullptr;
+  simgrid::surf::Storage* st = nullptr;
   s_mount_t mnt;
   unsigned int cursor;
 
-  XBT_DEBUG("Search for storage name '%s' on '%s'", mount, getName());
-  xbt_dynar_foreach(p_storage,cursor,mnt)
-  {
-    XBT_DEBUG("See '%s'",mnt.name);
-    if(!strcmp(mount,mnt.name)){
+  XBT_DEBUG("Search for storage name '%s' on '%s'", mount, piface_->cname());
+  xbt_dynar_foreach (storage_, cursor, mnt) {
+    XBT_DEBUG("See '%s'", mnt.name);
+    if (!strcmp(mount, mnt.name)) {
       st = static_cast<simgrid::surf::Storage*>(mnt.storage);
       break;
     }
   }
-  if(!st) xbt_die("Can't find mount '%s' for '%s'", mount, getName());
+  if (!st)
+    xbt_die("Can't find mount '%s' for '%s'", mount, piface_->cname());
   return st;
 }
 
@@ -200,11 +130,11 @@ xbt_dict_t HostImpl::getMountedStorageList()
   s_mount_t mnt;
   unsigned int i;
   xbt_dict_t storage_list = xbt_dict_new_homogeneous(nullptr);
-  char *storage_name = nullptr;
+  char* storage_name      = nullptr;
 
-  xbt_dynar_foreach(p_storage,i,mnt){
-    storage_name = (char *)static_cast<simgrid::surf::Storage*>(mnt.storage)->getName();
-    xbt_dict_set(storage_list,mnt.name,storage_name,nullptr);
+  xbt_dynar_foreach (storage_, i, mnt) {
+    storage_name = (char*)static_cast<simgrid::surf::Storage*>(mnt.storage)->getName();
+    xbt_dict_set(storage_list, mnt.name, storage_name, nullptr);
   }
   return storage_list;
 }
@@ -212,205 +142,180 @@ xbt_dict_t HostImpl::getMountedStorageList()
 xbt_dynar_t HostImpl::getAttachedStorageList()
 {
   xbt_lib_cursor_t cursor;
-  char *key;
-  void **data;
+  char* key;
+  void** data;
   xbt_dynar_t result = xbt_dynar_new(sizeof(void*), nullptr);
-  xbt_lib_foreach(storage_lib, cursor, key, data) {
-    if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != nullptr) {
-    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));
-    if(!strcmp((const char*)storage->p_attach,this->getName())){
-      xbt_dynar_push_as(result, void *, (void*)storage->getName());
+  xbt_lib_foreach(storage_lib, cursor, key, data)
+  {
+    if (xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != nullptr) {
+      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));
+      if (!strcmp((const char*)storage->attach_, piface_->cname())) {
+        xbt_dynar_push_as(result, void*, (void*)storage->getName());
+      }
     }
   }
-  }
   return result;
-}
-
-Action *HostImpl::open(const char* fullpath) {
-
-  simgrid::surf::Storage *st = nullptr;
-  s_mount_t mnt;
-  unsigned int cursor;
-  size_t longest_prefix_length = 0;
-  char *path = nullptr;
-  char *file_mount_name = nullptr;
-  char *mount_name = nullptr;
-
-  XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, getName());
-  xbt_dynar_foreach(p_storage,cursor,mnt)
-  {
-    XBT_DEBUG("See '%s'",mnt.name);
-    file_mount_name = (char *) xbt_malloc ((strlen(mnt.name)+1));
-    strncpy(file_mount_name,fullpath,strlen(mnt.name)+1);
-    file_mount_name[strlen(mnt.name)] = '\0';
-
-    if(!strcmp(file_mount_name,mnt.name) && strlen(mnt.name)>longest_prefix_length)
-    {/* The current mount name is found in the full path and is bigger than the previous*/
-      longest_prefix_length = strlen(mnt.name);
-      st = static_cast<simgrid::surf::Storage*>(mnt.storage);
     }
-    free(file_mount_name);
-  }
-  if(longest_prefix_length>0)
-  { /* Mount point found, split fullpath into mount_name and path+filename*/
-  path = (char *) xbt_malloc ((strlen(fullpath)-longest_prefix_length+1));
-  mount_name = (char *) xbt_malloc ((longest_prefix_length+1));
-  strncpy(mount_name, fullpath, longest_prefix_length+1);
-  strncpy(path, fullpath+longest_prefix_length, strlen(fullpath)-longest_prefix_length+1);
-  path[strlen(fullpath)-longest_prefix_length] = '\0';
-  mount_name[longest_prefix_length] = '\0';
-  }
-  else
-    xbt_die("Can't find mount point for '%s' on '%s'", fullpath, getName());
-
-  XBT_DEBUG("OPEN %s on disk '%s'",path, st->getName());
-  Action *action = st->open((const char*)mount_name, (const char*)path);
-  free((char*)path);
-  free((char*)mount_name);
-  return action;
-}
-
-Action *HostImpl::close(surf_file_t fd) {
-  simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
-  XBT_DEBUG("CLOSE %s on disk '%s'",fd->name, st->getName());
-  return st->close(fd);
-}
-
-Action *HostImpl::read(surf_file_t fd, sg_size_t size) {
-  simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
-  XBT_DEBUG("READ %s on disk '%s'",fd->name, st->getName());
-  return st->read(fd, size);
-}
 
-Action *HostImpl::write(surf_file_t fd, sg_size_t size) {
-  simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
-  XBT_DEBUG("WRITE %s on disk '%s'",fd->name, st->getName());
-  return st->write(fd, size);
-}
-
-int HostImpl::unlink(surf_file_t fd) {
-  if (!fd){
-    XBT_WARN("No such file descriptor. Impossible to unlink");
-    return -1;
-  } else {
-
-    simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
-    /* Check if the file is on this storage */
-    if (!xbt_dict_get_or_null(st->p_content, fd->name)){
-      XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name,
-          st->getName());
-      return -1;
-    } else {
-      XBT_DEBUG("UNLINK %s on disk '%s'",fd->name, st->getName());
-      st->m_usedSize -= fd->size;
-
-      // Remove the file from storage
-      xbt_dict_remove(st->p_content, fd->name);
-
-      xbt_free(fd->name);
-      xbt_free(fd->mount);
-      xbt_free(fd);
-      return 0;
+    Action* HostImpl::open(const char* fullpath)
+    {
+
+      simgrid::surf::Storage* st = nullptr;
+      s_mount_t mnt;
+      unsigned int cursor;
+      size_t longest_prefix_length = 0;
+      char* path                   = nullptr;
+      char* file_mount_name        = nullptr;
+      char* mount_name             = nullptr;
+
+      XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, piface_->cname());
+      xbt_dynar_foreach (storage_, cursor, mnt) {
+        XBT_DEBUG("See '%s'", mnt.name);
+        file_mount_name = (char*)xbt_malloc((strlen(mnt.name) + 1));
+        strncpy(file_mount_name, fullpath, strlen(mnt.name) + 1);
+        file_mount_name[strlen(mnt.name)] = '\0';
+
+        if (!strcmp(file_mount_name, mnt.name) &&
+            strlen(mnt.name) > longest_prefix_length) { /* The current mount name is found in the full path and is
+                                                           bigger than the previous*/
+          longest_prefix_length = strlen(mnt.name);
+          st                    = static_cast<simgrid::surf::Storage*>(mnt.storage);
+        }
+        free(file_mount_name);
+      }
+      if (longest_prefix_length > 0) { /* Mount point found, split fullpath into mount_name and path+filename*/
+        path       = (char*)xbt_malloc((strlen(fullpath) - longest_prefix_length + 1));
+        mount_name = (char*)xbt_malloc((longest_prefix_length + 1));
+        strncpy(mount_name, fullpath, longest_prefix_length + 1);
+        strncpy(path, fullpath + longest_prefix_length, strlen(fullpath) - longest_prefix_length + 1);
+        path[strlen(fullpath) - longest_prefix_length] = '\0';
+        mount_name[longest_prefix_length]              = '\0';
+      } else
+        xbt_die("Can't find mount point for '%s' on '%s'", fullpath, piface_->cname());
+
+      XBT_DEBUG("OPEN %s on disk '%s'", path, st->getName());
+      Action* action = st->open((const char*)mount_name, (const char*)path);
+      free((char*)path);
+      free((char*)mount_name);
+      return action;
     }
-  }
-}
 
-sg_size_t HostImpl::getSize(surf_file_t fd){
-  return fd->size;
-}
-
-xbt_dynar_t HostImpl::getInfo( surf_file_t fd)
-{
-  simgrid::surf::Storage *st = findStorageOnMountList(fd->mount);
-  sg_size_t *psize = xbt_new(sg_size_t, 1);
-  *psize = fd->size;
-  xbt_dynar_t info = xbt_dynar_new(sizeof(void*), nullptr);
-  xbt_dynar_push_as(info, sg_size_t *, psize);
-  xbt_dynar_push_as(info, void *, fd->mount);
-  xbt_dynar_push_as(info, void *, (void *)st->getName());
-  xbt_dynar_push_as(info, void *, st->p_typeId);
-  xbt_dynar_push_as(info, void *, st->p_contentType);
-
-  return info;
-}
-
-sg_size_t HostImpl::fileTell(surf_file_t fd){
-  return fd->current_position;
-}
+    Action* HostImpl::close(surf_file_t fd)
+    {
+      simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
+      XBT_DEBUG("CLOSE %s on disk '%s'", fd->name, st->getName());
+      return st->close(fd);
+    }
 
-int HostImpl::fileSeek(surf_file_t fd, sg_offset_t offset, int origin){
-
-  switch (origin) {
-  case SEEK_SET:
-    fd->current_position = offset;
-    return 0;
-  case SEEK_CUR:
-    fd->current_position += offset;
-    return 0;
-  case SEEK_END:
-    fd->current_position = fd->size + offset;
-    return 0;
-  default:
-    return -1;
-  }
-}
+    Action* HostImpl::read(surf_file_t fd, sg_size_t size)
+    {
+      simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
+      XBT_DEBUG("READ %s on disk '%s'", fd->name, st->getName());
+      return st->read(fd, size);
+    }
 
-int HostImpl::fileMove(surf_file_t fd, const char* fullpath){
-  /* Check if the new full path is on the same mount point */
-  if(!strncmp((const char*)fd->mount, fullpath, strlen(fd->mount))) {
-    sg_size_t *psize, *new_psize;
-    psize = (sg_size_t*)
-        xbt_dict_get_or_null(findStorageOnMountList(fd->mount)->p_content,
-                             fd->name);
-    new_psize = xbt_new(sg_size_t, 1);
-    *new_psize = *psize;
-    if (psize){// src file exists
-      xbt_dict_remove(findStorageOnMountList(fd->mount)->p_content, fd->name);
-      char *path = (char *) xbt_malloc ((strlen(fullpath)-strlen(fd->mount)+1));
-      strncpy(path, fullpath+strlen(fd->mount),
-              strlen(fullpath)-strlen(fd->mount)+1);
-      xbt_dict_set(findStorageOnMountList(fd->mount)->p_content, path,
-                   new_psize,nullptr);
-      XBT_DEBUG("Move file from %s to %s, size '%llu'",fd->name, fullpath, *psize);
-      free(path);
-      return 0;
-    } else {
-      XBT_WARN("File %s doesn't exist", fd->name);
-      return -1;
+    Action* HostImpl::write(surf_file_t fd, sg_size_t size)
+    {
+      simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
+      XBT_DEBUG("WRITE %s on disk '%s'", fd->name, st->getName());
+      return st->write(fd, size);
     }
-  } else {
-    XBT_WARN("New full path %s is not on the same mount point: %s. Action has been canceled.",
-             fullpath, fd->mount);
-    return -1;
-  }
-}
 
-xbt_dynar_t HostImpl::getVms()
-{
-  xbt_dynar_t dyn = xbt_dynar_new(sizeof(simgrid::surf::VirtualMachine*), nullptr);
+    int HostImpl::unlink(surf_file_t fd)
+    {
+      if (!fd) {
+        XBT_WARN("No such file descriptor. Impossible to unlink");
+        return -1;
+      } else {
+
+        simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
+        /* Check if the file is on this storage */
+        if (!xbt_dict_get_or_null(st->content_, fd->name)) {
+          XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name, st->getName());
+          return -1;
+        } else {
+          XBT_DEBUG("UNLINK %s on disk '%s'", fd->name, st->getName());
+          st->usedSize_ -= fd->size;
+
+          // Remove the file from storage
+          xbt_dict_remove(st->content_, fd->name);
+
+          xbt_free(fd->name);
+          xbt_free(fd->mount);
+          xbt_free(fd);
+          return 0;
+        }
+      }
+    }
 
-  /* iterate for all virtual machines */
-  for (simgrid::surf::VMModel::vm_list_t::iterator iter =
-         simgrid::surf::VMModel::ws_vms.begin();
-       iter !=  simgrid::surf::VMModel::ws_vms.end(); ++iter) {
+    sg_size_t HostImpl::getSize(surf_file_t fd)
+    {
+      return fd->size;
+    }
 
-    simgrid::surf::VirtualMachine *ws_vm = &*iter;
-    if (this == ws_vm->getPm()->extension(simgrid::surf::HostImpl::EXTENSION_ID))
-      xbt_dynar_push(dyn, &ws_vm);
-  }
+    xbt_dynar_t HostImpl::getInfo(surf_file_t fd)
+    {
+      simgrid::surf::Storage* st = findStorageOnMountList(fd->mount);
+      sg_size_t* psize           = xbt_new(sg_size_t, 1);
+      *psize                     = fd->size;
+      xbt_dynar_t info           = xbt_dynar_new(sizeof(void*), nullptr);
+      xbt_dynar_push_as(info, sg_size_t*, psize);
+      xbt_dynar_push_as(info, void*, fd->mount);
+      xbt_dynar_push_as(info, void*, (void*)st->getName());
+      xbt_dynar_push_as(info, void*, st->typeId_);
+      xbt_dynar_push_as(info, void*, st->contentType_);
+
+      return info;
+    }
 
-  return dyn;
-}
+    sg_size_t HostImpl::fileTell(surf_file_t fd)
+    {
+      return fd->current_position;
+    }
 
-void HostImpl::getParams(vm_params_t params)
-{
-  *params = p_params;
-}
+    int HostImpl::fileSeek(surf_file_t fd, sg_offset_t offset, int origin)
+    {
+
+      switch (origin) {
+        case SEEK_SET:
+          fd->current_position = offset;
+          return 0;
+        case SEEK_CUR:
+          fd->current_position += offset;
+          return 0;
+        case SEEK_END:
+          fd->current_position = fd->size + offset;
+          return 0;
+        default:
+          return -1;
+      }
+    }
 
-void HostImpl::setParams(vm_params_t params)
-{
-  /* may check something here. */
-  p_params = *params;
-}
+    int HostImpl::fileMove(surf_file_t fd, const char* fullpath)
+    {
+      /* Check if the new full path is on the same mount point */
+      if (!strncmp((const char*)fd->mount, fullpath, strlen(fd->mount))) {
+        sg_size_t* psize = (sg_size_t*)xbt_dict_get_or_null(findStorageOnMountList(fd->mount)->content_, fd->name);
+        if (psize) { // src file exists
+          sg_size_t* new_psize = xbt_new(sg_size_t, 1);
+          *new_psize           = *psize;
+          xbt_dict_remove(findStorageOnMountList(fd->mount)->content_, fd->name);
+          char* path = (char*)xbt_malloc((strlen(fullpath) - strlen(fd->mount) + 1));
+          strncpy(path, fullpath + strlen(fd->mount), strlen(fullpath) - strlen(fd->mount) + 1);
+          xbt_dict_set(findStorageOnMountList(fd->mount)->content_, path, new_psize, nullptr);
+          XBT_DEBUG("Move file from %s to %s, size '%llu'", fd->name, fullpath, *psize);
+          free(path);
+          return 0;
+        } else {
+          XBT_WARN("File %s doesn't exist", fd->name);
+          return -1;
+        }
+      } else {
+        XBT_WARN("New full path %s is not on the same mount point: %s. Action has been canceled.", fullpath, fd->mount);
+        return -1;
+      }
+    }
 
-}}
+    }
+    }