* under the terms of the license (GNU LGPL) which comes with this package. */
#include "src/surf/FileImpl.hpp"
-#include "src/surf/HostImpl.hpp"
+#include "src/surf/StorageImpl.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_file, surf, "Logging specific to the SURF file module");
namespace simgrid {
namespace surf {
+FileImpl::FileImpl(sg_storage_t st, std::string path, std::string mount) : path_(path), mount_point_(mount)
+{
+ XBT_DEBUG("\tOpen file '%s'", path.c_str());
+ location_ = st->getImpl();
+ std::map<std::string, sg_size_t>* content = location_->getContent();
+ // if file does not exist create an empty file
+ auto sz = content->find(path);
+ if (sz != content->end()) {
+ size_ = sz->second;
+ } else {
+ size_ = 0;
+ content->insert({path, size_});
+ XBT_DEBUG("File '%s' was not found, file created.", path.c_str());
+ }
+}
+
+Action* FileImpl::read(sg_size_t size)
+{
+ XBT_DEBUG("READ %s on disk '%s'", getCname(), location_->getCname());
+ if (current_position_ + size > size_) {
+ if (current_position_ > size_) {
+ size = 0;
+ } else {
+ size = size_ - current_position_;
+ }
+ current_position_ = size_;
+ } else
+ current_position_ += size;
+
+ return location_->read(size);
+}
+
+Action* FileImpl::write(sg_size_t size)
+{
+ XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu'", getCname(), location_->getCname(), size, size_);
+
+ StorageAction* action = location_->write(size);
+ action->file_ = this;
+ /* Substract the part of the file that might disappear from the used sized on the storage element */
+ location_->usedSize_ -= (size_ - current_position_);
+ // If the storage is full before even starting to write
+ if (location_->usedSize_ >= location_->getSize()) {
+ action->setState(Action::State::failed);
+ }
+ return action;
+}
+
int FileImpl::seek(sg_offset_t offset, int origin)
{
switch (origin) {
}
}
-int FileImpl::unlink(sg_host_t host)
+int FileImpl::unlink()
{
- simgrid::surf::StorageImpl* st = host->pimpl_->findStorageOnMountList(mount_point_.c_str());
/* Check if the file is on this storage */
- if (st->content_->find(path_) == st->content_->end()) {
- XBT_WARN("File %s is not on disk %s. Impossible to unlink", cname(), st->cname());
+ if (location_->getContent()->find(path_) == location_->getContent()->end()) {
+ XBT_WARN("File %s is not on disk %s. Impossible to unlink", getCname(), location_->getCname());
return -1;
} else {
- XBT_DEBUG("UNLINK %s on disk '%s'", cname(), st->cname());
- st->usedSize_ -= size_;
+ XBT_DEBUG("UNLINK %s on disk '%s'", getCname(), location_->getCname());
+ location_->usedSize_ -= size_;
// Remove the file from storage
- st->content_->erase(path_);
+ location_->getContent()->erase(path_);
return 0;
}
}
-void FileImpl::move(sg_host_t host, const char* fullpath)
+void FileImpl::move(std::string fullpath)
{
/* Check if the new full path is on the same mount point */
- if (not strncmp(mount_point_.c_str(), fullpath, mount_point_.size())) {
- std::map<std::string, sg_size_t>* content = host->pimpl_->findStorageOnMountList(mount_point_.c_str())->content_;
- if (content->find(path_) != content->end()) { // src file exists
- sg_size_t new_size = content->at(path_);
+ if (not strncmp(mount_point_.c_str(), fullpath.c_str(), mount_point_.size())) {
+ std::map<std::string, sg_size_t>* content = location_->getContent();
+ auto sz = content->find(path_);
+ if (sz != content->end()) { // src file exists
+ sg_size_t new_size = sz->second;
content->erase(path_);
- std::string path = std::string(fullpath).substr(mount_point_.size(), strlen(fullpath));
+ std::string path = fullpath.substr(mount_point_.length(), fullpath.length());
content->insert({path.c_str(), new_size});
- XBT_DEBUG("Move file from %s to %s, size '%llu'", path_.c_str(), fullpath, new_size);
+ XBT_DEBUG("Move file from %s to %s, size '%llu'", path_.c_str(), fullpath.c_str(), new_size);
} else {
XBT_WARN("File %s doesn't exist", path_.c_str());
}
} else {
- XBT_WARN("New full path %s is not on the same mount point: %s.", fullpath, mount_point_.c_str());
+ XBT_WARN("New full path %s is not on the same mount point: %s.", fullpath.c_str(), mount_point_.c_str());
}
}
}