1 /* Copyright (c) 2015-2019. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/plugins/file_system.h"
7 #include "simgrid/s4u/Actor.hpp"
8 #include "simgrid/s4u/Engine.hpp"
9 #include "src/surf/HostImpl.hpp"
10 #include "src/surf/xml/platf_private.hpp"
11 #include "xbt/config.hpp"
14 #include <boost/algorithm/string.hpp>
15 #include <boost/algorithm/string/join.hpp>
16 #include <boost/algorithm/string/split.hpp>
20 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_file, "S4U files");
21 int sg_storage_max_file_descriptors = 1024;
25 simgrid::xbt::Extension<Disk, FileSystemDiskExt> FileSystemDiskExt::EXTENSION_ID;
26 simgrid::xbt::Extension<Storage, FileSystemStorageExt> FileSystemStorageExt::EXTENSION_ID;
27 simgrid::xbt::Extension<Host, FileDescriptorHostExt> FileDescriptorHostExt::EXTENSION_ID;
29 File::File(const std::string& fullpath, void* userdata) : File(fullpath, Host::current(), userdata){};
31 File::File(const std::string& fullpath, sg_host_t host, void* userdata) : fullpath_(fullpath)
33 this->set_data(userdata);
34 // this cannot fail because we get a xbt_die if the mountpoint does not exist
35 if (not host->get_mounted_storages().empty()) {
36 Storage* st = nullptr;
37 size_t longest_prefix_length = 0;
38 XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath_.c_str(), host->get_cname());
40 for (auto const& mnt : host->get_mounted_storages()) {
41 XBT_DEBUG("See '%s'", mnt.first.c_str());
42 mount_point_ = fullpath_.substr(0, mnt.first.length());
44 if (mount_point_ == mnt.first && mnt.first.length() > longest_prefix_length) {
45 /* The current mount name is found in the full path and is bigger than the previous*/
46 longest_prefix_length = mnt.first.length();
50 if (longest_prefix_length > 0) { /* Mount point found, split fullpath_ into mount_name and path+filename*/
51 mount_point_ = fullpath_.substr(0, longest_prefix_length);
52 path_ = fullpath_.substr(longest_prefix_length, fullpath_.length());
54 xbt_die("Can't find mount point for '%s' on '%s'", fullpath_.c_str(), host->get_cname());
58 if (not host->get_disks().empty()) {
60 size_t longest_prefix_length = 0;
61 for (auto const& disk : host->get_disks()) {
62 std::string current_mount;
63 if (disk->get_host() != host)
64 current_mount = disk->extension<FileSystemDiskExt>()->get_mount_point(disk->get_host());
66 current_mount = disk->extension<FileSystemDiskExt>()->get_mount_point();
67 mount_point_ = fullpath_.substr(0, current_mount.length());
68 if (mount_point_ == current_mount && current_mount.length() > longest_prefix_length) {
69 /* The current mount name is found in the full path and is bigger than the previous*/
70 longest_prefix_length = current_mount.length();
73 if (longest_prefix_length > 0) { /* Mount point found, split fullpath_ into mount_name and path+filename*/
74 mount_point_ = fullpath_.substr(0, longest_prefix_length);
75 if (mount_point_ == std::string("/"))
78 path_ = fullpath_.substr(longest_prefix_length, fullpath_.length());
79 XBT_DEBUG("%s + %s", mount_point_.c_str(), path_.c_str());
81 xbt_die("Can't find mount point for '%s' on '%s'", fullpath_.c_str(), host->get_cname());
86 // assign a file descriptor id to the newly opened File
87 FileDescriptorHostExt* ext = host->extension<simgrid::s4u::FileDescriptorHostExt>();
88 if (ext->file_descriptor_table == nullptr) {
89 ext->file_descriptor_table.reset(new std::vector<int>(sg_storage_max_file_descriptors));
90 std::iota(ext->file_descriptor_table->rbegin(), ext->file_descriptor_table->rend(), 0); // Fill with ..., 1, 0.
92 xbt_assert(not ext->file_descriptor_table->empty(), "Too much files are opened! Some have to be closed.");
93 desc_id = ext->file_descriptor_table->back();
94 ext->file_descriptor_table->pop_back();
96 XBT_DEBUG("\tOpen file '%s'", path_.c_str());
97 std::map<std::string, sg_size_t>* content = nullptr;
99 content = local_storage_->extension<FileSystemStorageExt>()->get_content();
102 content = local_disk_->extension<FileSystemDiskExt>()->get_content();
104 // if file does not exist create an empty file
106 auto sz = content->find(path_);
107 if (sz != content->end()) {
111 content->insert({path_, size_});
112 XBT_DEBUG("File '%s' was not found, file created.", path_.c_str());
119 Host::current()->extension<simgrid::s4u::FileDescriptorHostExt>()->file_descriptor_table->push_back(desc_id);
125 XBT_INFO("File Descriptor information:\n"
126 "\t\tFull path: '%s'\n"
128 "\t\tMount point: '%s'\n"
129 "\t\tStorage Id: '%s'\n"
130 "\t\tStorage Type: '%s'\n"
131 "\t\tFile Descriptor Id: %d",
132 get_path(), size_, mount_point_.c_str(), local_storage_->get_cname(), local_storage_->get_type(), desc_id);
134 XBT_INFO("File Descriptor information:\n"
135 "\t\tFull path: '%s'\n"
137 "\t\tMount point: '%s'\n"
138 "\t\tDisk Id: '%s'\n"
139 "\t\tHost Id: '%s'\n"
140 "\t\tFile Descriptor Id: %d",
141 get_path(), size_, mount_point_.c_str(), local_disk_->get_cname(), local_disk_->get_host()->get_cname(),
145 sg_size_t File::read(sg_size_t size)
147 if (size_ == 0) /* Nothing to read, return */
149 sg_size_t read_size = 0;
150 Host* host = nullptr;
151 if (local_storage_) {
152 /* Find the host where the file is physically located and read it */
153 host = local_storage_->get_host();
154 XBT_DEBUG("READ %s on disk '%s'", get_path(), local_storage_->get_cname());
155 // if the current position is close to the end of the file, we may not be able to read the requested size
156 read_size = local_storage_->read(std::min(size, size_ - current_position_));
157 current_position_ += read_size;
161 /* Find the host where the file is physically located and read it */
162 host = local_disk_->get_host();
163 XBT_DEBUG("READ %s on disk '%s'", get_path(), local_disk_->get_cname());
164 // if the current position is close to the end of the file, we may not be able to read the requested size
165 read_size = local_disk_->read(std::min(size, size_ - current_position_));
166 current_position_ += read_size;
169 if (host && host->get_name() != Host::current()->get_name() && read_size > 0) {
170 /* the file is hosted on a remote host, initiate a communication between src and dest hosts for data transfer */
171 XBT_DEBUG("File is on %s remote host, initiate data transfer of %llu bytes.", host->get_cname(), read_size);
172 host->send_to(Host::current(), read_size);
178 /** @brief Write into a file (local or remote)
180 * @param size of the file to write
181 * @return the number of bytes successfully write or -1 if an error occurred
183 sg_size_t File::write(sg_size_t size, int write_inside)
185 if (size == 0) /* Nothing to write, return */
187 sg_size_t write_size = 0;
188 Host* host = nullptr;
190 /* Find the host where the file is physically located (remote or local)*/
192 host = local_storage_->get_host();
194 host = local_disk_->get_host();
196 if (host && host->get_name() != Host::current()->get_name()) {
197 /* the file is hosted on a remote host, initiate a communication between src and dest hosts for data transfer */
198 XBT_DEBUG("File is on %s remote host, initiate data transfer of %llu bytes.", host->get_cname(), size);
199 Host::current()->send_to(host, size);
202 if (local_storage_) {
203 XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu' '%llu:%llu'", get_path(), local_storage_->get_cname(), size,
204 size_, sg_storage_get_size_used(local_storage_), sg_storage_get_size(local_storage_));
205 // If the storage is full before even starting to write
206 if (sg_storage_get_size_used(local_storage_) >= sg_storage_get_size(local_storage_))
208 if (write_inside == 0) {
209 /* Subtract the part of the file that might disappear from the used sized on the storage element */
210 local_storage_->extension<FileSystemStorageExt>()->decr_used_size(size_ - current_position_);
211 write_size = local_storage_->write(size);
212 local_storage_->extension<FileSystemStorageExt>()->incr_used_size(write_size);
213 current_position_ += write_size;
214 size_ = current_position_;
216 write_size = local_storage_->write(size);
217 current_position_ += write_size;
218 if (current_position_ > size_)
219 size_ = current_position_;
221 std::map<std::string, sg_size_t>* content = local_storage_->extension<FileSystemStorageExt>()->get_content();
223 content->erase(path_);
224 content->insert({path_, size_});
228 XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu' '%llu:%llu'", get_path(), local_disk_->get_cname(), size, size_,
229 sg_disk_get_size_used(local_disk_), sg_disk_get_size(local_disk_));
230 // If the storage is full before even starting to write
231 if (sg_disk_get_size_used(local_disk_) >= sg_disk_get_size(local_disk_))
233 if (write_inside == 0) {
234 /* Subtract the part of the file that might disappear from the used sized on the storage element */
235 local_disk_->extension<FileSystemDiskExt>()->decr_used_size(size_ - current_position_);
236 write_size = local_disk_->write(size);
237 local_disk_->extension<FileSystemDiskExt>()->incr_used_size(write_size);
238 current_position_ += write_size;
239 size_ = current_position_;
241 write_size = local_disk_->write(size);
242 current_position_ += write_size;
243 if (current_position_ > size_)
244 size_ = current_position_;
246 std::map<std::string, sg_size_t>* content = local_disk_->extension<FileSystemDiskExt>()->get_content();
248 content->erase(path_);
249 content->insert({path_, size_});
254 sg_size_t File::size()
259 void File::seek(sg_offset_t offset)
261 current_position_ = offset;
264 void File::seek(sg_offset_t offset, int origin)
268 current_position_ = offset;
271 current_position_ += offset;
274 current_position_ = size_ + offset;
281 sg_size_t File::tell()
283 return current_position_;
286 void File::move(const std::string& fullpath)
288 /* Check if the new full path is on the same mount point */
289 if (fullpath.compare(0, mount_point_.length(), mount_point_) == 0) {
290 std::map<std::string, sg_size_t>* content = nullptr;
292 content = local_storage_->extension<FileSystemStorageExt>()->get_content();
294 content = local_disk_->extension<FileSystemDiskExt>()->get_content();
296 auto sz = content->find(path_);
297 if (sz != content->end()) { // src file exists
298 sg_size_t new_size = sz->second;
299 content->erase(path_);
300 std::string path = fullpath.substr(mount_point_.length(), fullpath.length());
301 content->insert({path.c_str(), new_size});
302 XBT_DEBUG("Move file from %s to %s, size '%llu'", path_.c_str(), fullpath.c_str(), new_size);
304 XBT_WARN("File %s doesn't exist", path_.c_str());
308 XBT_WARN("New full path %s is not on the same mount point: %s.", fullpath.c_str(), mount_point_.c_str());
314 /* Check if the file is on local storage */
315 std::map<std::string, sg_size_t>* content = nullptr;
316 const char* name = "";
317 if (local_storage_) {
318 content = local_storage_->extension<FileSystemStorageExt>()->get_content();
319 name = local_storage_->get_cname();
322 content = local_disk_->extension<FileSystemDiskExt>()->get_content();
323 name = local_disk_->get_cname();
326 if (not content || content->find(path_) == content->end()) {
327 XBT_WARN("File %s is not on disk %s. Impossible to unlink", path_.c_str(), name);
330 XBT_DEBUG("UNLINK %s on disk '%s'", path_.c_str(), name);
333 local_storage_->extension<FileSystemStorageExt>()->decr_used_size(size_);
336 local_disk_->extension<FileSystemDiskExt>()->decr_used_size(size_);
338 // Remove the file from storage
339 content->erase(fullpath_);
345 int File::remote_copy(sg_host_t host, const char* fullpath)
347 /* Find the host where the file is physically located and read it */
348 Host* src_host = nullptr;
349 if (local_storage_) {
350 src_host = local_storage_->get_host();
351 XBT_DEBUG("READ %s on disk '%s'", get_path(), local_storage_->get_cname());
355 src_host = local_disk_->get_host();
356 XBT_DEBUG("READ %s on disk '%s'", get_path(), local_disk_->get_cname());
360 // if the current position is close to the end of the file, we may not be able to read the requested size
361 sg_size_t read_size = 0;
363 read_size = local_storage_->read(size_);
365 read_size = local_disk_->read(size_);
367 current_position_ += read_size;
369 Host* dst_host = host;
370 if (local_storage_) {
371 /* Find the host that owns the storage where the file has to be copied */
372 Storage* storage_dest = nullptr;
373 size_t longest_prefix_length = 0;
375 for (auto const& elm : host->get_mounted_storages()) {
376 std::string mount_point = std::string(fullpath).substr(0, elm.first.size());
377 if (mount_point == elm.first && elm.first.length() > longest_prefix_length) {
378 /* The current mount name is found in the full path and is bigger than the previous*/
379 longest_prefix_length = elm.first.length();
380 storage_dest = elm.second;
384 if (storage_dest != nullptr) {
385 /* Mount point found, retrieve the host the storage is attached to */
386 dst_host = storage_dest->get_host();
388 XBT_WARN("Can't find mount point for '%s' on destination host '%s'", fullpath, host->get_cname());
394 size_t longest_prefix_length = 0;
395 Disk* dst_disk = nullptr;
397 for (auto const& disk : host->get_disks()) {
398 std::string current_mount = disk->extension<FileSystemDiskExt>()->get_mount_point();
399 std::string mount_point = std::string(fullpath).substr(0, current_mount.length());
400 if (mount_point == current_mount && current_mount.length() > longest_prefix_length) {
401 /* The current mount name is found in the full path and is bigger than the previous*/
402 longest_prefix_length = current_mount.length();
407 if (dst_disk == nullptr) {
408 XBT_WARN("Can't find mount point for '%s' on destination host '%s'", fullpath, host->get_cname());
414 XBT_DEBUG("Initiate data transfer of %llu bytes between %s and %s.", read_size, src_host->get_cname(),
415 dst_host->get_cname());
416 src_host->send_to(dst_host, read_size);
419 /* Create file on remote host, write it and close it */
420 File* fd = new File(fullpath, dst_host, nullptr);
421 if (local_storage_) {
422 sg_size_t write_size = fd->local_storage_->write(read_size);
423 fd->local_storage_->extension<FileSystemStorageExt>()->incr_used_size(write_size);
424 (*(fd->local_storage_->extension<FileSystemStorageExt>()->get_content()))[path_] = size_;
427 fd->write(read_size);
432 int File::remote_move(sg_host_t host, const char* fullpath)
434 int res = remote_copy(host, fullpath);
439 FileSystemDiskExt::FileSystemDiskExt(simgrid::s4u::Disk* ptr)
441 const char* size_str = ptr->get_property("size");
443 size_ = surf_parse_get_size(size_str, "disk size", ptr->get_name());
445 const char* current_mount_str = ptr->get_property("mount");
446 if (current_mount_str)
447 mount_point_ = std::string(current_mount_str);
449 mount_point_ = std::string("/");
451 const char* content_str = ptr->get_property("content");
453 content_.reset(parse_content(content_str));
456 FileSystemStorageExt::FileSystemStorageExt(simgrid::s4u::Storage* ptr)
458 content_.reset(parse_content(ptr->get_impl()->content_name_));
459 size_ = ptr->get_impl()->size_;
462 std::map<std::string, sg_size_t>* FileSystemDiskExt::parse_content(const std::string& filename)
464 if (filename.empty())
467 std::map<std::string, sg_size_t>* parse_content = new std::map<std::string, sg_size_t>();
469 std::ifstream* fs = surf_ifsopen(filename);
472 std::vector<std::string> tokens;
474 std::getline(*fs, line);
476 if (line.length() > 0) {
477 boost::split(tokens, line, boost::is_any_of(" \t"), boost::token_compress_on);
478 xbt_assert(tokens.size() == 2, "Parse error in %s: %s", filename.c_str(), line.c_str());
479 sg_size_t size = std::stoull(tokens.at(1));
482 parse_content->insert({tokens.front(), size});
484 } while (not fs->eof());
486 return parse_content;
489 std::map<std::string, sg_size_t>* FileSystemStorageExt::parse_content(const std::string& filename)
491 if (filename.empty())
494 std::map<std::string, sg_size_t>* parse_content = new std::map<std::string, sg_size_t>();
496 std::ifstream* fs = surf_ifsopen(filename);
499 std::vector<std::string> tokens;
501 std::getline(*fs, line);
503 if (line.length() > 0) {
504 boost::split(tokens, line, boost::is_any_of(" \t"), boost::token_compress_on);
505 xbt_assert(tokens.size() == 2, "Parse error in %s: %s", filename.c_str(), line.c_str());
506 sg_size_t size = std::stoull(tokens.at(1));
509 parse_content->insert({tokens.front(), size});
511 } while (not fs->eof());
513 return parse_content;
518 using simgrid::s4u::FileDescriptorHostExt;
519 using simgrid::s4u::FileSystemDiskExt;
520 using simgrid::s4u::FileSystemStorageExt;
522 static void on_disk_creation(simgrid::s4u::Disk& d)
524 d.extension_set(new FileSystemDiskExt(&d));
526 static void on_storage_creation(simgrid::s4u::Storage& st)
528 st.extension_set(new FileSystemStorageExt(&st));
531 static void on_host_creation(simgrid::s4u::Host& host)
533 host.extension_set<FileDescriptorHostExt>(new FileDescriptorHostExt());
536 static void on_platform_created()
538 for (auto const& host : simgrid::s4u::Engine::get_instance()->get_all_hosts()) {
539 const char* remote_disk_str = host->get_property("remote_disk");
540 if (remote_disk_str) {
541 std::vector<std::string> tokens;
542 boost::split(tokens, remote_disk_str, boost::is_any_of(":"));
543 std::string mount_point = tokens[0];
544 simgrid::s4u::Host* remote_host = simgrid::s4u::Host::by_name_or_null(tokens[2]);
545 xbt_assert(remote_host, "You're trying to access a host that does not exist. Please check your platform file");
547 simgrid::s4u::Disk* disk = nullptr;
548 for (auto const& d : remote_host->get_disks())
549 if (d->get_name() == tokens[1]) {
554 xbt_assert(disk, "You're trying to mount a disk that does not exist. Please check your platform file");
555 disk->extension<FileSystemDiskExt>()->add_remote_mount(remote_host, mount_point);
556 host->add_disk(disk);
558 XBT_DEBUG("Host '%s' wants to mount a remote disk: %s of %s mounted on %s", host->get_cname(), disk->get_cname(),
559 remote_host->get_cname(), mount_point.c_str());
560 XBT_DEBUG("Host '%s' now has %zu disks", host->get_cname(), host->get_disks().size());
565 static void on_simulation_end()
567 XBT_DEBUG("Simulation is over, time to unregister remote disks if any");
568 for (auto const& host : simgrid::s4u::Engine::get_instance()->get_all_hosts()) {
569 const char* remote_disk_str = host->get_property("remote_disk");
570 if (remote_disk_str) {
571 std::vector<std::string> tokens;
572 boost::split(tokens, remote_disk_str, boost::is_any_of(":"));
573 XBT_DEBUG("Host '%s' wants to unmount a remote disk: %s of %s mounted on %s", host->get_cname(),
574 tokens[1].c_str(), tokens[2].c_str(), tokens[0].c_str());
575 host->remove_disk(tokens[1]);
576 XBT_DEBUG("Host '%s' now has %zu disks", host->get_cname(), host->get_disks().size());
581 /* **************************** Public interface *************************** */
582 void sg_storage_file_system_init()
584 sg_storage_max_file_descriptors = 1024;
585 simgrid::config::bind_flag(sg_storage_max_file_descriptors, "storage/max_file_descriptors",
586 "Maximum number of concurrently opened files per host. Default is 1024");
588 if (not FileSystemStorageExt::EXTENSION_ID.valid()) {
589 FileSystemStorageExt::EXTENSION_ID = simgrid::s4u::Storage::extension_create<FileSystemStorageExt>();
590 simgrid::s4u::Storage::on_creation.connect(&on_storage_creation);
593 if (not FileSystemDiskExt::EXTENSION_ID.valid()) {
594 FileSystemDiskExt::EXTENSION_ID = simgrid::s4u::Disk::extension_create<FileSystemDiskExt>();
595 simgrid::s4u::Disk::on_creation.connect(&on_disk_creation);
598 if (not FileDescriptorHostExt::EXTENSION_ID.valid()) {
599 FileDescriptorHostExt::EXTENSION_ID = simgrid::s4u::Host::extension_create<FileDescriptorHostExt>();
600 simgrid::s4u::Host::on_creation.connect(&on_host_creation);
602 simgrid::s4u::Engine::on_platform_created.connect(&on_platform_created);
603 simgrid::s4u::Engine::on_simulation_end.connect(&on_simulation_end);
606 sg_file_t sg_file_open(const char* fullpath, void* data)
608 return new simgrid::s4u::File(fullpath, data);
611 sg_size_t sg_file_read(sg_file_t fd, sg_size_t size)
613 return fd->read(size);
616 sg_size_t sg_file_write(sg_file_t fd, sg_size_t size)
618 return fd->write(size);
621 void sg_file_close(sg_file_t fd)
626 const char* sg_file_get_name(sg_file_t fd)
628 xbt_assert((fd != nullptr), "Invalid file descriptor");
629 return fd->get_path();
632 sg_size_t sg_file_get_size(sg_file_t fd)
637 void sg_file_dump(sg_file_t fd)
642 void* sg_file_get_data(sg_file_t fd)
644 return fd->get_data();
647 void sg_file_set_data(sg_file_t fd, void* data)
653 * @brief Set the file position indicator in the sg_file_t by adding offset bytes
654 * to the position specified by origin (either SEEK_SET, SEEK_CUR, or SEEK_END).
656 * @param fd : file object that identifies the stream
657 * @param offset : number of bytes to offset from origin
658 * @param origin : Position used as reference for the offset. It is specified by one of the following constants defined
659 * in \<stdio.h\> exclusively to be used as arguments for this function (SEEK_SET = beginning of file,
660 * SEEK_CUR = current position of the file pointer, SEEK_END = end of file)
662 void sg_file_seek(sg_file_t fd, sg_offset_t offset, int origin)
664 fd->seek(offset, origin);
667 sg_size_t sg_file_tell(sg_file_t fd)
672 void sg_file_move(sg_file_t fd, const char* fullpath)
677 void sg_file_unlink(sg_file_t fd)
684 * @brief Copy a file to another location on a remote host.
685 * @param file : the file to move
686 * @param host : the remote host where the file has to be copied
687 * @param fullpath : the complete path destination on the remote host
688 * @return If successful, the function returns 0. Otherwise, it returns -1.
690 int sg_file_rcopy(sg_file_t file, sg_host_t host, const char* fullpath)
692 return file->remote_copy(host, fullpath);
696 * @brief Move a file to another location on a remote host.
697 * @param file : the file to move
698 * @param host : the remote host where the file has to be moved
699 * @param fullpath : the complete path destination on the remote host
700 * @return If successful, the function returns 0. Otherwise, it returns -1.
702 int sg_file_rmove(sg_file_t file, sg_host_t host, const char* fullpath)
704 return file->remote_move(host, fullpath);
707 sg_size_t sg_disk_get_size_free(sg_disk_t d)
709 return d->extension<FileSystemDiskExt>()->get_size() - d->extension<FileSystemDiskExt>()->get_used_size();
712 sg_size_t sg_disk_get_size_used(sg_disk_t d)
714 return d->extension<FileSystemDiskExt>()->get_used_size();
717 sg_size_t sg_disk_get_size(sg_disk_t d)
719 return d->extension<FileSystemDiskExt>()->get_size();
722 const char* sg_disk_get_mount_point(sg_disk_t d)
724 return d->extension<FileSystemDiskExt>()->get_mount_point();
727 sg_size_t sg_storage_get_size_free(sg_storage_t st)
729 return st->extension<FileSystemStorageExt>()->get_size() - st->extension<FileSystemStorageExt>()->get_used_size();
732 sg_size_t sg_storage_get_size_used(sg_storage_t st)
734 return st->extension<FileSystemStorageExt>()->get_used_size();
737 sg_size_t sg_storage_get_size(sg_storage_t st)
739 return st->extension<FileSystemStorageExt>()->get_size();
742 xbt_dict_t sg_storage_get_content(sg_storage_t storage)
744 std::map<std::string, sg_size_t>* content = storage->extension<simgrid::s4u::FileSystemStorageExt>()->get_content();
745 // Note: ::operator delete is ok here (no destructor called) since the dict elements are of POD type sg_size_t.
746 xbt_dict_t content_as_dict = xbt_dict_new_homogeneous(::operator delete);
748 for (auto const& entry : *content) {
749 sg_size_t* psize = new sg_size_t;
750 *psize = entry.second;
751 xbt_dict_set(content_as_dict, entry.first.c_str(), psize);
753 return content_as_dict;
756 xbt_dict_t sg_host_get_storage_content(sg_host_t host)
758 xbt_assert((host != nullptr), "Invalid parameters");
759 xbt_dict_t contents = xbt_dict_new_homogeneous(nullptr);
760 for (auto const& elm : host->get_mounted_storages())
761 xbt_dict_set(contents, elm.first.c_str(), sg_storage_get_content(elm.second));