#include "simgrid/s4u/File.hpp"
#include "simgrid/s4u/Host.hpp"
#include "simgrid/s4u/Storage.hpp"
+#include "simgrid/simix.hpp"
+#include "src/surf/FileImpl.hpp"
#include "src/surf/HostImpl.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_file,"S4U files");
namespace simgrid {
namespace s4u {
-File::File(const char* fullpath, void* userdata) : File(fullpath, Host::current(), userdata){};
+File::File(std::string fullpath, void* userdata) : File(fullpath, Host::current(), userdata){};
-File::File(const char* fullpath, sg_host_t host, void* userdata) : path_(fullpath), userdata_(userdata)
+File::File(std::string fullpath, sg_host_t host, void* userdata) : path_(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;
std::string path;
- XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, host->cname());
+ XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath.c_str(), host->getCname());
- for (auto mnt : host->mountedStorages()) {
+ for (auto const& mnt : host->getMountedStorages()) {
XBT_DEBUG("See '%s'", mnt.first.c_str());
- mount_point = std::string(fullpath).substr(0, mnt.first.size());
+ 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*/
}
}
if (longest_prefix_length > 0) { /* Mount point found, split fullpath into mount_name and path+filename*/
- mount_point = std::string(fullpath).substr(0, longest_prefix_length);
- path = std::string(fullpath).substr(longest_prefix_length, strlen(fullpath));
+ 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, host->cname());
+ xbt_die("Can't find mount point for '%s' on '%s'", fullpath.c_str(), host->getCname());
- pimpl_ = simcall_file_open(mount_point.c_str(), path.c_str(), st);
- host_ = host;
- storage_type = st->type();
- storageId = st->name();
+ pimpl_ =
+ simgrid::simix::kernelImmediate([this, st, path] { return new simgrid::surf::FileImpl(st, path, mount_point); });
+ onStorage = st;
}
File::~File()
{
- simcall_file_close(pimpl_, host_);
+ simgrid::simix::kernelImmediate([this] { delete pimpl_; });
}
sg_size_t File::read(sg_size_t size)
{
- return simcall_file_read(pimpl_, size, Host::current());
+ XBT_DEBUG("READ %s on disk '%s'", getPath(), onStorage->getCname());
+ // 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 = onStorage->read(std::min(size, this->size() - this->tell()));
+ pimpl_->incrPosition(read_size);
+ return read_size;
}
sg_size_t File::write(sg_size_t size)
{
- return simcall_file_write(pimpl_,size, Host::current());
-}
+ XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu'", getPath(), onStorage->getCname(), size, this->size());
+ // If the storage is full before even starting to write
+ if (onStorage->getSizeUsed() >= onStorage->getSize())
+ return 0;
+ /* Substract the part of the file that might disappear from the used sized on the storage element */
+ onStorage->decrUsedSize(this->size() - this->tell());
-sg_size_t File::write(sg_size_t size, sg_host_t host)
-{
- return simcall_file_write(pimpl_, size, host);
+ sg_size_t write_size = onStorage->write(size);
+ pimpl_->incrPosition(write_size);
+ pimpl_->setSize(this->tell());
+
+ onStorage->getContent()->erase(pimpl_->getName());
+ onStorage->getContent()->insert({pimpl_->getName(), this->size()});
+
+ return write_size;
}
sg_size_t File::size()
{
- return simcall_file_get_size(pimpl_);
+ return simgrid::simix::kernelImmediate([this] { return pimpl_->size(); });
}
-void File::seek(sg_size_t pos)
+void File::seek(sg_offset_t pos)
{
- simcall_file_seek(pimpl_,pos,SEEK_SET);
+ simgrid::simix::kernelImmediate([this, pos] { pimpl_->seek(pos, SEEK_SET); });
}
-sg_size_t File::tell()
+void File::seek(sg_offset_t pos, int origin)
{
- return simcall_file_tell(pimpl_);
+ simgrid::simix::kernelImmediate([this, pos, origin] { pimpl_->seek(pos, origin); });
}
-void File::move(const char* fullpath)
+sg_size_t File::tell()
{
- simcall_file_move(pimpl_,fullpath);
+ return simgrid::simix::kernelImmediate([this] { return pimpl_->tell(); });
}
-void File::unlink()
+void File::move(std::string fullpath)
{
- simcall_file_unlink(pimpl_, Host::current());
+ simgrid::simix::kernelImmediate([this, fullpath] { pimpl_->move(fullpath); });
}
-void File::unlink(sg_host_t host)
+int File::unlink()
{
- simcall_file_unlink(pimpl_, host);
+ return simgrid::simix::kernelImmediate([this] { return pimpl_->unlink(); });
}
}} // namespace simgrid::s4u