namespace s4u {
simgrid::xbt::Extension<Disk, FileSystemDiskExt> FileSystemDiskExt::EXTENSION_ID;
-simgrid::xbt::Extension<Storage, FileSystemStorageExt> FileSystemStorageExt::EXTENSION_ID;
simgrid::xbt::Extension<Host, FileDescriptorHostExt> FileDescriptorHostExt::EXTENSION_ID;
-Storage* File::find_local_storage_on(Host* host)
-{
- Storage* st = nullptr;
- size_t longest_prefix_length = 0;
- XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath_.c_str(), host->get_cname());
-
- for (auto const& mnt : host->get_mounted_storages()) {
- XBT_DEBUG("See '%s'", mnt.first.c_str());
- mount_point_ = fullpath_.substr(0, mnt.first.length());
-
- if (mount_point_ == mnt.first && mnt.first.length() > longest_prefix_length) {
- /* The current mount name is found in the full path and is bigger than the previous*/
- longest_prefix_length = mnt.first.length();
- st = mnt.second;
- }
- }
- if (longest_prefix_length > 0) { /* Mount point found, split fullpath_ into mount_name and path+filename*/
- mount_point_ = fullpath_.substr(0, longest_prefix_length);
- path_ = fullpath_.substr(longest_prefix_length, fullpath_.length());
- } else
- xbt_die("Can't find mount point for '%s' on '%s'", fullpath_.c_str(), host->get_cname());
-
- return st;
-}
-
Disk* File::find_local_disk_on(const Host* host)
{
Disk* d = nullptr;
kernel::actor::simcall([this, &host, userdata] {
this->set_data(userdata);
// this cannot fail because we get a xbt_die if the mountpoint does not exist
- if (not host->get_mounted_storages().empty()) {
- local_storage_ = find_local_storage_on(host);
- }
- if (not host->get_disks().empty()) {
- local_disk_ = find_local_disk_on(host);
- }
+ local_disk_ = find_local_disk_on(host);
// assign a file descriptor id to the newly opened File
auto* ext = host->extension<simgrid::s4u::FileDescriptorHostExt>();
XBT_DEBUG("\tOpen file '%s'", path_.c_str());
std::map<std::string, sg_size_t, std::less<>>* content = nullptr;
- if (local_storage_)
- content = local_storage_->extension<FileSystemStorageExt>()->get_content();
-
- if (local_disk_)
- content = local_disk_->extension<FileSystemDiskExt>()->get_content();
+ content = local_disk_->extension<FileSystemDiskExt>()->get_content();
// if file does not exist create an empty file
if (content) {
void File::dump() const
{
- if (local_storage_)
- XBT_INFO("File Descriptor information:\n"
- "\t\tFull path: '%s'\n"
- "\t\tSize: %llu\n"
- "\t\tMount point: '%s'\n"
- "\t\tStorage Id: '%s'\n"
- "\t\tStorage Type: '%s'\n"
- "\t\tFile Descriptor Id: %d",
- get_path(), size_, mount_point_.c_str(), local_storage_->get_cname(), local_storage_->get_type(), desc_id);
- if (local_disk_)
- XBT_INFO("File Descriptor information:\n"
- "\t\tFull path: '%s'\n"
- "\t\tSize: %llu\n"
- "\t\tMount point: '%s'\n"
- "\t\tDisk Id: '%s'\n"
- "\t\tHost Id: '%s'\n"
- "\t\tFile Descriptor Id: %d",
- get_path(), size_, mount_point_.c_str(), local_disk_->get_cname(), local_disk_->get_host()->get_cname(),
- desc_id);
+ XBT_INFO("File Descriptor information:\n"
+ "\t\tFull path: '%s'\n"
+ "\t\tSize: %llu\n"
+ "\t\tMount point: '%s'\n"
+ "\t\tDisk Id: '%s'\n"
+ "\t\tHost Id: '%s'\n"
+ "\t\tFile Descriptor Id: %d",
+ get_path(), size_, mount_point_.c_str(), local_disk_->get_cname(), local_disk_->get_host()->get_cname(),
+ desc_id);
}
sg_size_t File::read(sg_size_t size)
sg_size_t to_read = std::min(size, size_ - current_position_);
sg_size_t read_size = 0;
- if (local_storage_) {
- /* Find the host where the file is physically located and read it */
- host = local_storage_->get_host();
- XBT_DEBUG("READ %s on disk '%s'", get_path(), local_storage_->get_cname());
- read_size = local_storage_->read(to_read);
- }
-
- if (local_disk_) {
- /* Find the host where the file is physically located and read it */
- host = local_disk_->get_host();
- XBT_DEBUG("READ %s on disk '%s'", get_path(), local_disk_->get_cname());
- read_size = local_disk_->read(to_read);
- }
+ /* Find the host where the file is physically located and read it */
+ host = local_disk_->get_host();
+ XBT_DEBUG("READ %s on disk '%s'", get_path(), local_disk_->get_cname());
+ read_size = local_disk_->read(to_read);
current_position_ += read_size;
* @param size of the file to write
* @return the number of bytes successfully write or -1 if an error occurred
*/
-sg_size_t File::write_on_disk(sg_size_t size, bool write_inside)
+sg_size_t File::write(sg_size_t size, bool write_inside)
{
+ if (size == 0) /* Nothing to write, return */
+ return 0;
+
sg_size_t write_size = 0;
/* Find the host where the file is physically located (remote or local)*/
Host* host = local_disk_->get_host();
}
XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu' '%llu:%llu'", get_path(), local_disk_->get_cname(), size, size_,
sg_disk_get_size_used(local_disk_), sg_disk_get_size(local_disk_));
- // If the storage is full before even starting to write
+ // If the disk is full before even starting to write
if (sg_disk_get_size_used(local_disk_) >= sg_disk_get_size(local_disk_))
return 0;
if (not write_inside) {
return write_size;
}
-sg_size_t File::write_on_storage(sg_size_t size, bool write_inside)
-{
- sg_size_t write_size = 0;
- /* Find the host where the file is physically located (remote or local)*/
- Host* host = local_storage_->get_host();
-
- if (host && host->get_name() != Host::current()->get_name()) {
- /* the file is hosted on a remote host, initiate a communication between src and dest hosts for data transfer */
- XBT_DEBUG("File is on %s remote host, initiate data transfer of %llu bytes.", host->get_cname(), size);
- Host::current()->sendto(host, size);
- }
-
- XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu' '%llu:%llu'", get_path(), local_storage_->get_cname(), size, size_,
- sg_storage_get_size_used(local_storage_), sg_storage_get_size(local_storage_));
- // If the storage is full before even starting to write
- if (sg_storage_get_size_used(local_storage_) >= sg_storage_get_size(local_storage_))
- return 0;
- if (not write_inside) {
- /* Subtract the part of the file that might disappear from the used sized on the storage element */
- local_storage_->extension<FileSystemStorageExt>()->decr_used_size(size_ - current_position_);
- write_size = local_storage_->write(size);
- local_storage_->extension<FileSystemStorageExt>()->incr_used_size(write_size);
- current_position_ += write_size;
- size_ = current_position_;
- } else {
- write_size = local_storage_->write(size);
- current_position_ += write_size;
- if (current_position_ > size_)
- size_ = current_position_;
- }
- kernel::actor::simcall([this] {
- std::map<std::string, sg_size_t, std::less<>>* content =
- local_storage_->extension<FileSystemStorageExt>()->get_content();
-
- content->erase(path_);
- content->insert({path_, size_});
- });
-
- return write_size;
-}
-
-sg_size_t File::write(sg_size_t size, bool write_inside)
-{
- if (size == 0) /* Nothing to write, return */
- return 0;
-
- if (local_disk_)
- return write_on_disk(size, write_inside);
- if (local_storage_)
- return write_on_storage(size, write_inside);
-
- return 0;
-}
-
sg_size_t File::size() const
{
return size_;
/* Check if the new full path is on the same mount point */
if (fullpath.compare(0, mount_point_.length(), mount_point_) == 0) {
std::map<std::string, sg_size_t, std::less<>>* content = nullptr;
- if (local_storage_)
- content = local_storage_->extension<FileSystemStorageExt>()->get_content();
- if (local_disk_)
- content = local_disk_->extension<FileSystemDiskExt>()->get_content();
+ content = local_disk_->extension<FileSystemDiskExt>()->get_content();
if (content) {
auto sz = content->find(path_);
if (sz != content->end()) { // src file exists
/* Check if the file is on local storage */
std::map<std::string, sg_size_t, std::less<>>* content = nullptr;
const char* name = "";
- if (local_storage_) {
- content = local_storage_->extension<FileSystemStorageExt>()->get_content();
- name = local_storage_->get_cname();
- }
- if (local_disk_) {
- content = local_disk_->extension<FileSystemDiskExt>()->get_content();
- name = local_disk_->get_cname();
- }
+ content = local_disk_->extension<FileSystemDiskExt>()->get_content();
+ name = local_disk_->get_cname();
if (not content || content->find(path_) == content->end()) {
XBT_WARN("File %s is not on disk %s. Impossible to unlink", path_.c_str(), name);
} else {
XBT_DEBUG("UNLINK %s on disk '%s'", path_.c_str(), name);
- if (local_storage_)
- local_storage_->extension<FileSystemStorageExt>()->decr_used_size(size_);
-
- if (local_disk_)
- local_disk_->extension<FileSystemDiskExt>()->decr_used_size(size_);
+ local_disk_->extension<FileSystemDiskExt>()->decr_used_size(size_);
// Remove the file from storage
content->erase(path_);
seek(0, SEEK_SET);
- if (local_storage_) {
- src_host = local_storage_->get_host();
- XBT_DEBUG("READ %s on disk '%s'", get_path(), local_storage_->get_cname());
- read_size = local_storage_->read(size_);
- current_position_ += read_size;
-
- /* Find the host that owns the storage where the file has to be copied */
- const Storage* storage_dest = nullptr;
-
- for (auto const& elm : host->get_mounted_storages()) {
- std::string mount_point = std::string(fullpath).substr(0, elm.first.size());
- if (mount_point == elm.first && elm.first.length() > longest_prefix_length) {
- /* The current mount name is found in the full path and is bigger than the previous*/
- longest_prefix_length = elm.first.length();
- storage_dest = elm.second;
- }
- }
+ src_host = local_disk_->get_host();
+ XBT_DEBUG("READ %s on disk '%s'", get_path(), local_disk_->get_cname());
+ read_size = local_disk_->read(size_);
+ current_position_ += read_size;
- if (storage_dest != nullptr) {
- /* Mount point found, retrieve the host the storage is attached to */
- dst_host = storage_dest->get_host();
- } else {
- XBT_WARN("Can't find mount point for '%s' on destination host '%s'", fullpath.c_str(), host->get_cname());
- return -1;
- }
- }
+ const Disk* dst_disk = nullptr;
- if (local_disk_) {
- src_host = local_disk_->get_host();
- XBT_DEBUG("READ %s on disk '%s'", get_path(), local_disk_->get_cname());
- read_size = local_disk_->read(size_);
- current_position_ += read_size;
-
- const Disk* dst_disk = nullptr;
-
- for (auto const& disk : host->get_disks()) {
- std::string current_mount = disk->extension<FileSystemDiskExt>()->get_mount_point();
- std::string mount_point = std::string(fullpath).substr(0, current_mount.length());
- if (mount_point == current_mount && current_mount.length() > longest_prefix_length) {
- /* The current mount name is found in the full path and is bigger than the previous*/
- longest_prefix_length = current_mount.length();
- dst_disk = disk;
- }
+ for (auto const& disk : host->get_disks()) {
+ std::string current_mount = disk->extension<FileSystemDiskExt>()->get_mount_point();
+ std::string mount_point = std::string(fullpath).substr(0, current_mount.length());
+ if (mount_point == current_mount && current_mount.length() > longest_prefix_length) {
+ /* The current mount name is found in the full path and is bigger than the previous*/
+ longest_prefix_length = current_mount.length();
+ dst_disk = disk;
}
+ }
- if (dst_disk == nullptr) {
- XBT_WARN("Can't find mount point for '%s' on destination host '%s'", fullpath.c_str(), host->get_cname());
- return -1;
- }
+ if (dst_disk == nullptr) {
+ XBT_WARN("Can't find mount point for '%s' on destination host '%s'", fullpath.c_str(), host->get_cname());
+ return -1;
}
if (src_host) {
/* Create file on remote host, write it and close it */
File fd(fullpath, dst_host, nullptr);
- if (local_storage_) {
- sg_size_t write_size = fd.local_storage_->write(read_size);
- fd.local_storage_->extension<FileSystemStorageExt>()->incr_used_size(write_size);
- (*(fd.local_storage_->extension<FileSystemStorageExt>()->get_content()))[path_] = size_;
- }
- if (local_disk_)
- fd.write(read_size);
+ fd.write(read_size);
return 0;
}
content_.reset(parse_content(content_str));
}
-FileSystemStorageExt::FileSystemStorageExt(const Storage* ptr) : size_(ptr->get_impl()->size_)
-{
- content_.reset(parse_content(ptr->get_impl()->content_name_));
-}
-
std::map<std::string, sg_size_t, std::less<>>* FileSystemDiskExt::parse_content(const std::string& filename)
{
if (filename.empty())
return parse_content;
}
-std::map<std::string, sg_size_t, std::less<>>* FileSystemStorageExt::parse_content(const std::string& filename)
-{
- if (filename.empty())
- return nullptr;
-
- auto* parse_content = new std::map<std::string, sg_size_t, std::less<>>();
-
- auto fs = std::unique_ptr<std::ifstream>(surf_ifsopen(filename));
- xbt_assert(not fs->fail(), "Cannot open file '%s' (path=%s)", filename.c_str(),
- (boost::join(surf_path, ":")).c_str());
-
- std::string line;
- std::vector<std::string> tokens;
- do {
- std::getline(*fs, line);
- boost::trim(line);
- if (line.length() > 0) {
- boost::split(tokens, line, boost::is_any_of(" \t"), boost::token_compress_on);
- xbt_assert(tokens.size() == 2, "Parse error in %s: %s", filename.c_str(), line.c_str());
- sg_size_t size = std::stoull(tokens.at(1));
-
- used_size_ += size;
- parse_content->insert({tokens.front(), size});
- }
- } while (not fs->eof());
- return parse_content;
-}
-
-void FileSystemStorageExt::decr_used_size(sg_size_t size)
-{
- simgrid::kernel::actor::simcall([this, size] { used_size_ -= size; });
-}
-
-void FileSystemStorageExt::incr_used_size(sg_size_t size)
-{
- simgrid::kernel::actor::simcall([this, size] { used_size_ += size; });
-}
-
void FileSystemDiskExt::decr_used_size(sg_size_t size)
{
simgrid::kernel::actor::simcall([this, size] { used_size_ -= size; });
using simgrid::s4u::FileDescriptorHostExt;
using simgrid::s4u::FileSystemDiskExt;
-using simgrid::s4u::FileSystemStorageExt;
static void on_disk_creation(simgrid::s4u::Disk& d)
{
d.extension_set(new FileSystemDiskExt(&d));
}
-static void on_storage_creation(simgrid::s4u::Storage& st)
-{
- st.extension_set(new FileSystemStorageExt(&st));
-}
static void on_host_creation(simgrid::s4u::Host& host)
{
simgrid::config::bind_flag(sg_storage_max_file_descriptors, "storage/max_file_descriptors",
"Maximum number of concurrently opened files per host. Default is 1024");
- if (not FileSystemStorageExt::EXTENSION_ID.valid()) {
- FileSystemStorageExt::EXTENSION_ID = simgrid::s4u::Storage::extension_create<FileSystemStorageExt>();
- simgrid::s4u::Storage::on_creation.connect(&on_storage_creation);
- }
-
if (not FileSystemDiskExt::EXTENSION_ID.valid()) {
FileSystemDiskExt::EXTENSION_ID = simgrid::s4u::Disk::extension_create<FileSystemDiskExt>();
simgrid::s4u::Disk::on_creation.connect(&on_disk_creation);
{
return d->extension<FileSystemDiskExt>()->get_mount_point();
}
-
-sg_size_t sg_storage_get_size_free(const_sg_storage_t st)
-{
- return st->extension<FileSystemStorageExt>()->get_size() - st->extension<FileSystemStorageExt>()->get_used_size();
-}
-
-sg_size_t sg_storage_get_size_used(const_sg_storage_t st)
-{
- return st->extension<FileSystemStorageExt>()->get_used_size();
-}
-
-sg_size_t sg_storage_get_size(const_sg_storage_t st)
-{
- return st->extension<FileSystemStorageExt>()->get_size();
-}
-
-xbt_dict_t sg_storage_get_content(const_sg_storage_t storage)
-{
- const std::map<std::string, sg_size_t, std::less<>>* content =
- storage->extension<simgrid::s4u::FileSystemStorageExt>()->get_content();
- // Note: ::operator delete is ok here (no destructor called) since the dict elements are of POD type sg_size_t.
- xbt_dict_t content_as_dict = xbt_dict_new_homogeneous(::operator delete);
-
- for (auto const& entry : *content) {
- auto* psize = new sg_size_t(entry.second);
- xbt_dict_set(content_as_dict, entry.first.c_str(), psize);
- }
- return content_as_dict;
-}
-
-xbt_dict_t sg_host_get_storage_content(sg_host_t host)
-{
- xbt_assert((host != nullptr), "Invalid parameters");
- xbt_dict_t contents = xbt_dict_new_homogeneous(nullptr);
- for (auto const& elm : host->get_mounted_storages())
- xbt_dict_set(contents, elm.first.c_str(), sg_storage_get_content(elm.second));
-
- return contents;
-}
