File::File(const std::string& fullpath, const_sg_host_t host, void* userdata) : fullpath_(fullpath)
{
- kernel::actor::simcall([this, &host, userdata] {
+ kernel::actor::simcall_answered([this, &host, userdata] {
this->set_data(userdata);
// this cannot fail because we get a xbt_die if the mountpoint does not exist
local_disk_ = find_local_disk_on(host);
desc_id = ext->file_descriptor_table->back();
ext->file_descriptor_table->pop_back();
- XBT_DEBUG("\tOpen file '%s'", path_.c_str());
std::map<std::string, sg_size_t, std::less<>>* content = nullptr;
content = local_disk_->extension<FileSystemDiskExt>()->get_content();
auto sz = content->find(path_);
if (sz != content->end()) {
size_ = sz->second;
+ XBT_DEBUG("\tOpen file '%s', size %llu", path_.c_str(), size_);
} else {
size_ = 0;
content->insert({path_, size_});
});
}
-File::~File()
-{
- std::vector<int>* desc_table =
- Host::current()->extension<simgrid::s4u::FileDescriptorHostExt>()->file_descriptor_table.get();
- kernel::actor::simcall([this, desc_table] { desc_table->push_back(this->desc_id); });
-}
+File::~File() = default;
File* File::open(const std::string& fullpath, void* userdata)
{
return new File(fullpath, userdata);
}
+File* File::open(const std::string& fullpath, const_sg_host_t host, void* userdata)
+{
+ return new File(fullpath, host, userdata);
+}
+
+void File::close()
+{
+ std::vector<int>* desc_table =
+ Host::current()->extension<simgrid::s4u::FileDescriptorHostExt>()->file_descriptor_table.get();
+ kernel::actor::simcall_answered([this, desc_table] { desc_table->push_back(this->desc_id); });
+ delete this;
+}
+
void File::dump() const
{
XBT_INFO("File Descriptor information:\n"
sg_size_t write_size = 0;
/* Find the host where the file is physically located (remote or local)*/
- Host* host = local_disk_->get_host();
-
- if (host && host->get_name() != Host::current()->get_name()) {
+ if (Host* host = local_disk_->get_host(); 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);
Comm::sendto(Host::current(), host, size);
// 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) {
+ if (not write_inside)
/* Subtract 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_;
- }
- kernel::actor::simcall([this] {
- std::map<std::string, sg_size_t, std::less<>>* content = local_disk_->extension<FileSystemDiskExt>()->get_content();
-
- content->erase(path_);
- content->insert({path_, size_});
- });
+ write_size = local_disk_->write(size);
+ update_position(current_position_ + write_size);
return write_size;
}
{
switch (origin) {
case SEEK_SET:
- current_position_ = offset;
- break;
+ update_position(offset);
+ break;
case SEEK_CUR:
- current_position_ += offset;
+ update_position(current_position_ + offset);
break;
case SEEK_END:
- current_position_ = size_ + offset;
+ update_position(size_ + offset);
break;
default:
break;
}
}
+void File::update_position(sg_offset_t position)
+{
+ xbt_assert(position >= 0, "Error in seek, cannot seek before file %s", get_path());
+ current_position_ = position;
+ if(current_position_>size_){
+ XBT_DEBUG("Updating size of file %s from %llu to %llu", path_.c_str(), size_, position);
+ local_disk_->extension<FileSystemDiskExt>()->incr_used_size(current_position_-size_);
+ size_ = current_position_;
+
+ kernel::actor::simcall_answered([this] {
+ std::map<std::string, sg_size_t, std::less<>>* content = local_disk_->extension<FileSystemDiskExt>()->get_content();
+ content->erase(path_);
+ content->insert({path_, size_});
+ });
+ }
+}
+
sg_size_t File::tell() const
{
return current_position_;
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(), name);
+ XBT_DEBUG("UNLINK %s of size %llu on disk '%s'", path_.c_str(), size_, name);
local_disk_->extension<FileSystemDiskExt>()->decr_used_size(size_);
-
// Remove the file from storage
content->erase(path_);
}
/* Create file on remote host, write it and close it */
- File fd(fullpath, dst_host, nullptr);
- fd.write(read_size);
+ auto* fd = File::open(fullpath, dst_host, nullptr);
+ fd->write(read_size);
+ fd->close();
return 0;
}
FileSystemDiskExt::FileSystemDiskExt(const Disk* ptr)
{
- const char* size_str = ptr->get_property("size");
- std::string dummyfile;
- if (size_str)
+ if (const char* size_str = ptr->get_property("size")) {
+ std::string dummyfile;
size_ = xbt_parse_get_size(dummyfile, -1, size_str, "disk size " + ptr->get_name());
+ }
- const char* current_mount_str = ptr->get_property("mount");
- if (current_mount_str)
+ if (const char* current_mount_str = ptr->get_property("mount"))
mount_point_ = std::string(current_mount_str);
else
mount_point_ = std::string("/");
- const char* content_str = ptr->get_property("content");
- if (content_str)
+ if (const char* content_str = ptr->get_property("content"))
content_.reset(parse_content(content_str));
}
return parse_content;
}
+void FileSystemDiskExt::add_remote_mount(Host* host, const std::string& mount_point)
+{
+ remote_mount_points_.try_emplace(host, mount_point);
+}
+
void FileSystemDiskExt::decr_used_size(sg_size_t size)
{
- simgrid::kernel::actor::simcall([this, size] { used_size_ -= size; });
+ simgrid::kernel::actor::simcall_answered([this, size] { used_size_ -= size; });
}
void FileSystemDiskExt::incr_used_size(sg_size_t size)
{
- simgrid::kernel::actor::simcall([this, size] { used_size_ += size; });
+ simgrid::kernel::actor::simcall_answered([this, size] { used_size_ += size; });
}
}
}
void sg_file_unlink(sg_file_t fd)
{
fd->unlink();
- delete fd;
+ fd->close();
}
/**
