int impact = std::min(active_tasks, ws_vm->pimpl_vm_->coreAmount());
XBT_DEBUG("set the weight of the dummy CPU action of VM%p on PM to %d (#tasks: %d)", ws_vm, impact, active_tasks);
- ws_vm->pimpl_vm_->action_->setPriority(impact);
+ if (impact > 0)
+ ws_vm->pimpl_vm_->action_->setSharingWeight(1. / impact);
+ else
+ ws_vm->pimpl_vm_->action_->setSharingWeight(0.);
}
}
simgrid::surf::StorageImpl* HostImpl::findStorageOnMountList(const char* mount)
{
- XBT_DEBUG("Search for storage name '%s' on '%s'", mount, piface_->cname());
+ XBT_DEBUG("Search for storage name '%s' on '%s'", mount, piface_->getCname());
if (storage_.find(mount) == storage_.end())
- xbt_die("Can't find mount '%s' for '%s'", mount, piface_->cname());
+ xbt_die("Can't find mount '%s' for '%s'", mount, piface_->getCname());
return storage_.at(mount);
}
void HostImpl::getAttachedStorageList(std::vector<const char*>* storages)
{
for (auto s : storage_)
- if (s.second->attach_ == piface_->cname())
- storages->push_back(s.second->piface_.name());
-}
-
-Action* HostImpl::close(surf_file_t fd)
-{
- simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
- XBT_DEBUG("CLOSE %s on disk '%s'", fd->cname(), st->cname());
- return st->close(fd);
+ if (s.second->attach_ == piface_->getCname())
+ storages->push_back(s.second->piface_.getName());
}
Action* HostImpl::read(surf_file_t fd, sg_size_t size)
{
simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
XBT_DEBUG("READ %s on disk '%s'", fd->cname(), st->cname());
- return st->read(fd, size);
-}
-
-Action* HostImpl::write(surf_file_t fd, sg_size_t size)
-{
- simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
- XBT_DEBUG("WRITE %s on disk '%s'", fd->cname(), st->cname());
- return st->write(fd, size);
-}
-
-int HostImpl::unlink(surf_file_t fd)
-{
- if (not fd) {
- XBT_WARN("No such file descriptor. Impossible to unlink");
- return -1;
- } else {
-
- simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
- /* Check if the file is on this storage */
- if (st->content_->find(fd->cname()) == st->content_->end()) {
- XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->cname(), st->cname());
- return -1;
+ if (fd->tell() + size > fd->size()) {
+ if (fd->tell() > fd->size()) {
+ size = 0;
} else {
- XBT_DEBUG("UNLINK %s on disk '%s'", fd->cname(), st->cname());
- st->usedSize_ -= fd->size();
-
- // Remove the file from storage
- st->content_->erase(fd->cname());
-
- return 0;
+ size = fd->size() - fd->tell();
}
- }
-}
+ fd->setPosition(fd->size());
+ } else
+ fd->incrPosition(size);
-int HostImpl::fileSeek(surf_file_t fd, sg_offset_t offset, int origin)
-{
- switch (origin) {
- case SEEK_SET:
- fd->setPosition(offset);
- return 0;
- case SEEK_CUR:
- fd->incrPosition(offset);
- return 0;
- case SEEK_END:
- fd->setPosition(fd->size() + offset);
- return 0;
- default:
- return -1;
- }
+ return st->read(size);
}
-int HostImpl::fileMove(surf_file_t fd, const char* fullpath)
+Action* HostImpl::write(surf_file_t fd, sg_size_t size)
{
- /* Check if the new full path is on the same mount point */
- if (not strncmp(fd->mount(), fullpath, strlen(fd->mount()))) {
- std::map<std::string, sg_size_t>* content = findStorageOnMountList(fd->mount())->content_;
- if (content->find(fd->name()) != content->end()) { // src file exists
- sg_size_t new_size = content->at(fd->name());
- content->erase(fd->name());
- std::string path = std::string(fullpath).substr(strlen(fd->mount()), strlen(fullpath));
- content->insert({path.c_str(), new_size});
- XBT_DEBUG("Move file from %s to %s, size '%llu'", fd->cname(), fullpath, new_size);
- return 0;
- } else {
- XBT_WARN("File %s doesn't exist", fd->cname());
- 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;
+ simgrid::surf::StorageImpl* st = findStorageOnMountList(fd->mount());
+ XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu'", fd->cname(), st->cname(), size, fd->size());
+
+ StorageAction* action = st->write(size);
+ action->file_ = fd;
+ /* Substract the part of the file that might disappear from the used sized on the storage element */
+ st->usedSize_ -= (fd->size() - fd->tell());
+ // If the storage is full before even starting to write
+ if (st->usedSize_ >= st->size_) {
+ action->setState(Action::State::failed);
}
+ return action;
}
}