X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/0a9ce6009d2a98f3ef66a8a1b020106f09e5568c..7cee0f64a84b4459068dc23ff23e491a3e3b288b:/include/simgrid/plugins/file_system.h diff --git a/include/simgrid/plugins/file_system.h b/include/simgrid/plugins/file_system.h index bb22a1a63a..1a5ea1cd53 100644 --- a/include/simgrid/plugins/file_system.h +++ b/include/simgrid/plugins/file_system.h @@ -1,5 +1,4 @@ -/* Copyright (c) 2017. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2017-2018. 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. */ @@ -9,13 +8,155 @@ #include #include +#include + +// C interface +//////////////// +typedef sg_file_t msg_file_t; // MSG backwards compatibility 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 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 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(void) sg_storage_file_system_init(); +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() +// C++ interface +////////////////// + +#ifdef __cplusplus +#include + +#include +#include + +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* get_path() { 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 set_userdata(void* data) { userdata_ = data; } + /** Retrieves the previously stored data */ + void* get_userdata() { 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 remote_copy(sg_host_t host, const char* fullpath); + int remote_move(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* local_storage_; + 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 EXTENSION_ID; + explicit FileSystemStorageExt(Storage* ptr); + ~FileSystemStorageExt(); + std::map* parse_content(std::string filename); + std::map* get_content() { return content_; } + sg_size_t get_size() { return size_; } + sg_size_t get_used_size() { return used_size_; } + void decr_used_size(sg_size_t size) { used_size_ -= size; } + void incr_used_size(sg_size_t size) { used_size_ += size; } + +private: + std::map* content_; + sg_size_t used_size_ = 0; + sg_size_t size_ = 0; +}; + +class XBT_PUBLIC FileDescriptorHostExt { +public: + static simgrid::xbt::Extension EXTENSION_ID; + FileDescriptorHostExt() = default; + ~FileDescriptorHostExt() { delete file_descriptor_table; } + std::vector* file_descriptor_table = nullptr; // Created lazily on need +}; +} // namespace s4u +} // namespace simgrid +#endif #endif