X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7a3a100990355eb757dc81106b5aac6daed0b8e1..aad6b6c4c7b1454dd284f822ba6f52e790f42c6e:/include/simgrid/plugins/file_system.h diff --git a/include/simgrid/plugins/file_system.h b/include/simgrid/plugins/file_system.h index cee6835de9..af744b03b9 100644 --- a/include/simgrid/plugins/file_system.h +++ b/include/simgrid/plugins/file_system.h @@ -1,5 +1,4 @@ -/* Copyright (c) 2017-2018. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2017-2023. 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. */ @@ -7,60 +6,145 @@ #ifndef SIMGRID_PLUGINS_FILE_SYSTEM_H_ #define SIMGRID_PLUGINS_FILE_SYSTEM_H_ +#include #include #include +#include -SG_BEGIN_DECL() +#ifdef __cplusplus +#include +#include +#include +#include +#endif /* C++ */ + +// C interface +//////////////// + +SG_BEGIN_DECL XBT_PUBLIC void sg_storage_file_system_init(); XBT_PUBLIC sg_file_t sg_file_open(const char* fullpath, void* data); XBT_PUBLIC sg_size_t sg_file_read(sg_file_t fd, sg_size_t size); XBT_PUBLIC sg_size_t sg_file_write(sg_file_t fd, sg_size_t size); XBT_PUBLIC void sg_file_close(sg_file_t fd); -XBT_PUBLIC const char* sg_file_get_name(sg_file_t fd); -XBT_PUBLIC sg_size_t sg_file_get_size(sg_file_t fd); -XBT_PUBLIC void sg_file_dump(sg_file_t fd); -XBT_PUBLIC void* sg_file_get_data(sg_file_t fd); +XBT_PUBLIC const char* sg_file_get_name(const_sg_file_t fd); +XBT_PUBLIC sg_size_t sg_file_get_size(const_sg_file_t fd); +XBT_PUBLIC void sg_file_dump(const_sg_file_t fd); +XBT_PUBLIC void* sg_file_get_data(const_sg_file_t fd); XBT_PUBLIC void sg_file_set_data(sg_file_t fd, void* data); XBT_PUBLIC void sg_file_seek(sg_file_t fd, sg_offset_t offset, int origin); -XBT_PUBLIC sg_size_t sg_file_tell(sg_file_t fd); -XBT_PUBLIC void sg_file_move(sg_file_t fd, const char* fullpath); +XBT_PUBLIC sg_size_t sg_file_tell(const_sg_file_t fd); +XBT_PUBLIC void sg_file_move(const_sg_file_t fd, const char* fullpath); XBT_PUBLIC void sg_file_unlink(sg_file_t fd); XBT_PUBLIC int sg_file_rcopy(sg_file_t file, sg_host_t host, const char* fullpath); XBT_PUBLIC int sg_file_rmove(sg_file_t file, sg_host_t host, const char* fullpath); -XBT_PUBLIC sg_size_t sg_storage_get_size_free(sg_storage_t st); -XBT_PUBLIC sg_size_t sg_storage_get_size_used(sg_storage_t st); -XBT_PUBLIC sg_size_t sg_storage_get_size(sg_storage_t st); -XBT_PUBLIC xbt_dict_t sg_storage_get_content(sg_storage_t storage); - -XBT_PUBLIC xbt_dict_t sg_host_get_storage_content(sg_host_t host); - -#define MSG_file_open(fullpath, data) sg_file_open(fullpath, data) -#define MSG_file_read(fd, size) sg_file_read(fd, size) -#define MSG_file_write(fd, size) sg_file_write(fd, size) -#define MSG_file_close(fd) sg_file_close(fd) -#define MSG_file_get_name(fd) sg_file_get_name(fd) -#define MSG_file_get_size(fd) sg_file_get_size(fd) -#define MSG_file_dump(fd) sg_file_dump(fd) -#define MSG_file_get_data(fd) sg_file_get_data(fd) -#define MSG_file_set_data(fd, data) sg_file_set_data(fd, data) -#define MSG_file_seek(fd, offset, origin) sg_file_seek(fd, offset, origin) -#define MSG_file_tell(fd) sg_file_tell(fd) -#define MSG_file_move(fd, fullpath) sg_file_get_size(fd, fullpath) -#define MSG_file_unlink(fd) sg_file_unlink(fd) -#define MSG_file_rcopy(file, host, fullpath) sg_file_rcopy(file, host, fullpath) -#define MSG_file_rmove(file, host, fullpath) sg_file_rmove(file, host, fullpath) - -#define MSG_storage_file_system_init() sg_storage_file_system_init() -#define MSG_storage_get_free_size(st) sg_storage_get_size_free(st) -#define MSG_storage_get_used_size(st) sg_storage_get_size_used(st) -#define MSG_storage_get_size(st) sg_storage_get_size(st) -#define MSG_storage_get_content(st) sg_storage_get_content(st) - -#define MSG_host_get_storage_content(st) sg_host_get_storage_content(st) - -SG_END_DECL() +XBT_PUBLIC sg_size_t sg_disk_get_size_free(const_sg_disk_t d); +XBT_PUBLIC sg_size_t sg_disk_get_size_used(const_sg_disk_t d); +XBT_PUBLIC sg_size_t sg_disk_get_size(const_sg_disk_t d); +XBT_PUBLIC const char* sg_disk_get_mount_point(const_sg_disk_t d); + +SG_END_DECL + +// C++ interface +////////////////// + +#ifdef __cplusplus + +namespace simgrid { + +extern template class XBT_PUBLIC xbt::Extendable; + +namespace s4u { + +/** @brief A simulated file + * @ingroup plugin_filesystem + * + * 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::Disk that are accessed from a given @ref simgrid::s4u::Host + */ +class XBT_PUBLIC File : public xbt::Extendable { + sg_size_t size_ = 0; + std::string path_; + std::string fullpath_; + sg_size_t current_position_ = SEEK_SET; + int desc_id = 0; + const Disk* local_disk_ = nullptr; + std::string mount_point_; + + const Disk* find_local_disk_on(const Host* host); + +protected: + File(const std::string& fullpath, void* userdata); + File(const std::string& fullpath, const_sg_host_t host, void* userdata); + File(const File&) = delete; + File& operator=(const File&) = delete; + ~File(); +public: + static File* open(const std::string& fullpath, void* userdata); + static File* open(const std::string& fullpath, const_sg_host_t host, void* userdata); + void close(); + + /** Retrieves the path to the file */ + const char* get_path() const { 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, bool write_inside = false); + + sg_size_t size() const; + 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() const; /** Retrieves the current file position */ + void update_position(sg_offset_t); /** set new position in file, grow it if necessary, and increased usage */ + + /** Rename a file. WARNING: It is forbidden to move the file to another mount point */ + void move(const std::string& fullpath) const; + int remote_copy(sg_host_t host, const std::string& fullpath); + int remote_move(sg_host_t host, const std::string& fullpath); + + int unlink() const; /** Remove a file from the contents of a disk */ + void dump() const; +}; + +class XBT_PUBLIC FileSystemDiskExt { + std::unique_ptr>> content_; + std::map remote_mount_points_; + std::string mount_point_; + sg_size_t used_size_ = 0; + sg_size_t size_ = static_cast(500 * 1024) * 1024 * 1024; + +public: + static simgrid::xbt::Extension EXTENSION_ID; + explicit FileSystemDiskExt(const Disk* ptr); + FileSystemDiskExt(const FileSystemDiskExt&) = delete; + FileSystemDiskExt& operator=(const FileSystemDiskExt&) = delete; + std::map>* parse_content(const std::string& filename); + std::map>* get_content() const { return content_.get(); } + const char* get_mount_point() const { return mount_point_.c_str(); } + const char* get_mount_point(s4u::Host* remote_host) { return remote_mount_points_[remote_host].c_str(); } + void add_remote_mount(Host* host, const std::string& mount_point); + sg_size_t get_size() const { return size_; } + sg_size_t get_used_size() const { return used_size_; } + void decr_used_size(sg_size_t size); + void incr_used_size(sg_size_t size); +}; + +class XBT_PUBLIC FileDescriptorHostExt { +public: + static simgrid::xbt::Extension EXTENSION_ID; + FileDescriptorHostExt() = default; + FileDescriptorHostExt(const FileDescriptorHostExt&) = delete; + FileDescriptorHostExt& operator=(const FileDescriptorHostExt&) = delete; + std::unique_ptr> file_descriptor_table = nullptr; // Created lazily on need +}; +} // namespace s4u +} // namespace simgrid +#endif #endif