-/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef SIMGRID_S4U_FILE_HPP
-#define SIMGRID_S4U_FILE_HPP
-
-#include "simgrid/plugins/file_system.h"
-#include <xbt/Extendable.hpp>
-#include <xbt/base.h>
-
-#include <simgrid/simix.h>
-#include <string>
-
-namespace simgrid {
-namespace s4u {
-
-/** @brief A simulated file
- *
- * Used to simulate the time it takes to access to a file, but does not really store any information.
- *
- * They are located on @ref simgrid::s4u::Storage that are accessed from a given @ref simgrid::s4u::Host through
- * mountpoints.
- * For now, you cannot change the mountpoints programatically, and must declare them from your platform file.
- */
-class XBT_PUBLIC File {
-public:
- File(std::string fullpath, void* userdata);
- File(std::string fullpath, sg_host_t host, void* userdata);
- ~File();
-
- /** Retrieves the path to the file */
- const char* getPath() { return fullpath_.c_str(); }
-
- /** Simulates a local read action. Returns the size of data actually read */
- sg_size_t read(sg_size_t size);
-
- /** Simulates a write action. Returns the size of data actually written. */
- sg_size_t write(sg_size_t size);
-
- /** Allows to store user data on that host */
- void setUserdata(void* data) { userdata_ = data; }
- /** Retrieves the previously stored data */
- void* getUserdata() { return userdata_; }
-
- sg_size_t size();
- void seek(sg_offset_t pos); /** Sets the file head to the given position. */
- void seek(sg_offset_t pos, int origin); /** Sets the file head to the given position from a given origin. */
- sg_size_t tell(); /** Retrieves the current file position */
-
- /** Rename a file. WARNING: It is forbidden to move the file to another mount point */
- void move(std::string fullpath);
- int remoteCopy(sg_host_t host, const char* fullpath);
- int remoteMove(sg_host_t host, const char* fullpath);
-
- int unlink(); /** Remove a file from the contents of a disk */
- void dump();
-
- int desc_id = 0;
- Storage* localStorage;
- std::string mount_point_;
-
-private:
- sg_size_t size_;
- std::string path_;
- std::string fullpath_;
- sg_size_t current_position_ = SEEK_SET;
- void* userdata_ = nullptr;
-};
-
-class XBT_PUBLIC FileSystemStorageExt {
-public:
- static simgrid::xbt::Extension<Storage, FileSystemStorageExt> EXTENSION_ID;
- explicit FileSystemStorageExt(Storage* ptr);
- ~FileSystemStorageExt();
- std::map<std::string, sg_size_t>* parseContent(std::string filename);
- std::map<std::string, sg_size_t>* getContent() { return content_; }
- sg_size_t getSize() { return size_; }
- sg_size_t getUsedSize() { return usedSize_; }
- void decrUsedSize(sg_size_t size) { usedSize_ -= size; }
- void incrUsedSize(sg_size_t size) { usedSize_ += size; }
-private:
- std::map<std::string, sg_size_t>* content_;
- sg_size_t usedSize_ = 0;
- sg_size_t size_ = 0;
-};
-
-class XBT_PUBLIC FileDescriptorHostExt {
-public:
- static simgrid::xbt::Extension<Host, FileDescriptorHostExt> EXTENSION_ID;
- FileDescriptorHostExt() = default;
- ~FileDescriptorHostExt() { delete file_descriptor_table; }
- std::vector<int>* file_descriptor_table = nullptr; // Created lazily on need
-};
-}
-} // namespace simgrid::s4u
-
-#endif /* SIMGRID_S4U_HOST_HPP */