* under the terms of the license (GNU LGPL) which comes with this package. */
#include <string>
-#include <unordered_map>
+#include <vector>
#include "simgrid/plugins/file_system.h"
#include "simgrid/s4u.hpp"
class MyHost {
public:
- void show_info(std::unordered_map<std::string, simgrid::s4u::Storage*> const& mounts)
+ void show_info(std::vector<simgrid::s4u::Disk*> const& disks)
{
XBT_INFO("Storage info on %s:", simgrid::s4u::Host::current()->get_cname());
- for (auto const& kv : mounts) {
- std::string mountpoint = kv.first;
- simgrid::s4u::Storage* storage = kv.second;
+ for (auto const& d : disks) {
+ const char* mountpoint = d->get_property("mount");
// Retrieve disk's information
- XBT_INFO(" %s (%s) Used: %llu; Free: %llu; Total: %llu.", storage->get_cname(), mountpoint.c_str(),
- sg_storage_get_size_used(storage), sg_storage_get_size_free(storage), sg_storage_get_size(storage));
+ XBT_INFO(" %s (%s) Used: %llu; Free: %llu; Total: %llu.", d->get_cname(), mountpoint, sg_disk_get_size_used(d),
+ sg_disk_get_size_free(d), sg_disk_get_size(d));
}
}
void operator()()
{
- std::unordered_map<std::string, simgrid::s4u::Storage*> const& mounts =
- simgrid::s4u::Host::current()->get_mounted_storages();
+ std::vector<simgrid::s4u::Disk*> const& disks = simgrid::s4u::Host::current()->get_disks();
- show_info(mounts);
+ show_info(disks);
// Open an non-existing file to create it
std::string filename = "/home/tmp/data.txt";
XBT_INFO("Create a %llu bytes file named '%s' on /sd1", write, filename.c_str());
// check that sizes have changed
- show_info(mounts);
+ show_info(disks);
// Now retrieve the size of created file and read it completely
const sg_size_t file_size = file->size();
write = file->write(100000); // Write 100,000 bytes
XBT_INFO("Write %llu bytes on %s", write, filename.c_str());
- simgrid::s4u::Storage* storage = simgrid::s4u::Storage::by_name("Disk4");
-
// Now rename file from ./tmp/data.txt to ./tmp/simgrid.readme
std::string newpath = "/home/tmp/simgrid.readme";
XBT_INFO("Move '%s' to '%s'", file->get_path(), newpath.c_str());
// Close the file
delete file;
- // Now attach some user data to disk1
- XBT_INFO("Get/set data for storage element: %s", storage->get_cname());
- XBT_INFO(" Uninitialized storage data: '%s'", static_cast<char*>(storage->get_data()));
-
- storage->set_data(new std::string("Some user data"));
- std::string* storage_data = static_cast<std::string*>(storage->get_data());
- XBT_INFO(" Set and get data: '%s'", storage_data->c_str());
-
- delete storage_data;
+ show_info(disks);
// Reopen the file and then unlink it
file = new simgrid::s4u::File("/home/tmp/simgrid.readme", nullptr);
file->unlink();
delete file; // Unlinking the file on "disk" does not free the object
- show_info(mounts);
+ show_info(disks);
}
};
simgrid::s4u::Engine e(&argc, argv);
sg_storage_file_system_init();
e.load_platform(argv[1]);
- simgrid::s4u::Actor::create("host", simgrid::s4u::Host::by_name("denise"), MyHost());
+ simgrid::s4u::Actor::create("host", simgrid::s4u::Host::by_name("bob"), MyHost());
e.run();
return 0;
#include "simgrid/plugins/file_system.h"
#include "simgrid/s4u/Actor.hpp"
#include "src/surf/HostImpl.hpp"
+#include "src/surf/xml/platf_private.hpp"
#include "xbt/config.hpp"
#include <algorithm>
namespace simgrid {
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;
File::File(const std::string& fullpath, sg_host_t host, void* userdata) : fullpath_(fullpath), userdata_(userdata)
{
// this cannot fail because we get a xbt_die if the mountpoint does not exist
- 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 (not host->get_mounted_storages().empty()) {
+ 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());
- 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;
+ local_storage_ = st;
+ }
+ if (not host->get_disks().empty()) {
+ Disk* d = nullptr;
+ size_t longest_prefix_length = 0;
+ for (auto const& disk : host->get_disks()) {
+ const char* current_mount_str = disk->get_property("mount");
+ if (current_mount_str) {
+ std::string current_mount = std::string(current_mount_str);
+ mount_point_ = 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();
+ d = disk;
+ }
+ 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());
+ }
}
+ local_disk_ = d;
}
- 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());
-
- local_storage_ = st;
// assign a file descriptor id to the newly opened File
FileDescriptorHostExt* ext = host->extension<simgrid::s4u::FileDescriptorHostExt>();
ext->file_descriptor_table->pop_back();
XBT_DEBUG("\tOpen file '%s'", path_.c_str());
- std::map<std::string, sg_size_t>* content = local_storage_->extension<FileSystemStorageExt>()->get_content();
+ std::map<std::string, sg_size_t>* content;
+ if (local_storage_)
+ content = local_storage_->extension<FileSystemStorageExt>()->get_content();
+ else
+ content = local_disk_->extension<FileSystemDiskExt>()->get_content();
// if file does not exist create an empty file
auto sz = content->find(path_);
if (sz != content->end()) {
{
if (size_ == 0) /* Nothing to read, return */
return 0;
+ sg_size_t read_size = 0;
+
+ if (local_storage_) {
+ /* Find the host where the file is physically located and read it */
+ Host* host = local_storage_->get_host();
+ XBT_DEBUG("READ %s on disk '%s'", get_path(), local_storage_->get_cname());
+ // if the current position is close to the end of the file, we may not be able to read the requested size
+ read_size = local_storage_->read(std::min(size, size_ - current_position_));
+ current_position_ += read_size;
+
+ if (host->get_name() != Host::current()->get_name() && read_size > 0) {
+ /* 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(), read_size);
+ host->send_to(Host::current(), read_size);
+ }
+ }
- /* Find the host where the file is physically located and read it */
- Host* host = local_storage_->get_host();
- XBT_DEBUG("READ %s on disk '%s'", get_path(), local_storage_->get_cname());
- // if the current position is close to the end of the file, we may not be able to read the requested size
- sg_size_t read_size = local_storage_->read(std::min(size, size_ - current_position_));
- current_position_ += read_size;
-
- if (host->get_name() != Host::current()->get_name() && read_size > 0) {
- /* 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(), read_size);
- host->send_to(Host::current(), read_size);
+ if (local_disk_) {
+ /* Find the host where the file is physically located and read it */
+ XBT_DEBUG("READ %s on disk '%s'", get_path(), local_disk_->get_cname());
+ // if the current position is close to the end of the file, we may not be able to read the requested size
+ read_size = local_disk_->read(std::min(size, size_ - current_position_));
+ current_position_ += read_size;
}
return read_size;
{
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_storage_->get_host();
+ if (local_storage_) {
+ /* Find the host where the file is physically located (remote or local)*/
+ Host* host = local_storage_->get_host();
- if (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()->send_to(host, size);
- }
+ if (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()->send_to(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;
- sg_size_t write_size=0;
- if(write_inside==0){
- /* Substract 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_)
+ 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 (write_inside == 0) {
+ /* Substract 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_;
+ }
+ std::map<std::string, sg_size_t>* content = local_storage_->extension<FileSystemStorageExt>()->get_content();
+
+ content->erase(path_);
+ content->insert({path_, size_});
}
- std::map<std::string, sg_size_t>* content = local_storage_->extension<FileSystemStorageExt>()->get_content();
- content->erase(path_);
- content->insert({path_, size_});
+ if (local_disk_) {
+ 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 (sg_disk_get_size_used(local_disk_) >= sg_disk_get_size(local_disk_))
+ return 0;
+ if (write_inside == 0) {
+ /* Substract the part of the file that might disappear from the used sized on the storage element */
+ local_disk_->extension<FileSystemDiskExt>()->decr_used_size(size_ - current_position_);
+ write_size = local_disk_->write(size);
+ local_disk_->extension<FileSystemDiskExt>()->incr_used_size(write_size);
+ current_position_ += write_size;
+ size_ = current_position_;
+ } else {
+ write_size = local_disk_->write(size);
+ current_position_ += write_size;
+ if (current_position_ > size_)
+ size_ = current_position_;
+ }
+ std::map<std::string, sg_size_t>* content = local_disk_->extension<FileSystemDiskExt>()->get_content();
+ content->erase(path_);
+ content->insert({path_, size_});
+ }
return write_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>* content = local_storage_->extension<FileSystemStorageExt>()->get_content();
+ std::map<std::string, sg_size_t>* content;
+ if (local_storage_)
+ content = local_storage_->extension<FileSystemStorageExt>()->get_content();
+ if (local_disk_)
+ content = local_disk_->extension<FileSystemDiskExt>()->get_content();
auto sz = content->find(path_);
if (sz != content->end()) { // src file exists
sg_size_t new_size = sz->second;
int File::unlink()
{
/* Check if the file is on local storage */
- std::map<std::string, sg_size_t>* content = local_storage_->extension<FileSystemStorageExt>()->get_content();
+ std::map<std::string, sg_size_t>* content;
+ const char* name = nullptr;
+ 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();
+ }
if (content->find(path_) == content->end()) {
- XBT_WARN("File %s is not on disk %s. Impossible to unlink", path_.c_str(), local_storage_->get_cname());
+ XBT_WARN("File %s is not on disk %s. Impossible to unlink", path_.c_str(), name);
return -1;
} else {
- XBT_DEBUG("UNLINK %s on disk '%s'", path_.c_str(), local_storage_->get_cname());
- local_storage_->extension<FileSystemStorageExt>()->decr_used_size(size_);
+ 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_);
// Remove the file from storage
content->erase(fullpath_);
return res;
}
+FileSystemDiskExt::FileSystemDiskExt(simgrid::s4u::Disk* ptr)
+{
+ const char* size_str = ptr->get_property("size");
+ const char* content_str = ptr->get_property("content");
+ size_ = size_str ? surf_parse_get_size(size_str, "disk size", ptr->get_name()) : 0;
+ if (content_str)
+ content_.reset(parse_content(content_str));
+}
+
FileSystemStorageExt::FileSystemStorageExt(simgrid::s4u::Storage* ptr)
{
content_.reset(parse_content(ptr->get_impl()->content_name_));
size_ = ptr->get_impl()->size_;
}
+std::map<std::string, sg_size_t>* FileSystemDiskExt::parse_content(const std::string& filename)
+{
+ if (filename.empty())
+ return nullptr;
+
+ std::map<std::string, sg_size_t>* parse_content = new std::map<std::string, sg_size_t>();
+
+ std::ifstream* fs = surf_ifsopen(filename);
+
+ 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());
+ delete fs;
+ return parse_content;
+}
+
std::map<std::string, sg_size_t>* FileSystemStorageExt::parse_content(const std::string& filename)
{
if (filename.empty())
}
}
-using simgrid::s4u::FileSystemStorageExt;
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));
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);
+ }
+
if (not FileDescriptorHostExt::EXTENSION_ID.valid()) {
FileDescriptorHostExt::EXTENSION_ID = simgrid::s4u::Host::extension_create<FileDescriptorHostExt>();
simgrid::s4u::Host::on_creation.connect(&on_host_creation);
return file->remote_move(host, fullpath);
}
+sg_size_t sg_disk_get_size_free(sg_disk_t d)
+{
+ return d->extension<FileSystemDiskExt>()->get_size() - d->extension<FileSystemDiskExt>()->get_used_size();
+}
+
+sg_size_t sg_disk_get_size_used(sg_disk_t d)
+{
+ return d->extension<FileSystemDiskExt>()->get_used_size();
+}
+
+sg_size_t sg_disk_get_size(sg_disk_t d)
+{
+ return d->extension<FileSystemDiskExt>()->get_size();
+}
+
sg_size_t sg_storage_get_size_free(sg_storage_t st)
{
return st->extension<FileSystemStorageExt>()->get_size() - st->extension<FileSystemStorageExt>()->get_used_size();
