X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6330fa8d1410fba5e1560eeaeddf1a7382eaa369..7d25326366e9764913af94b28b4d343ddf4c239d:/src/msg/msg_io.c diff --git a/src/msg/msg_io.c b/src/msg/msg_io.c index 008c7bf986..8d9fa637fe 100644 --- a/src/msg/msg_io.c +++ b/src/msg/msg_io.c @@ -1,8 +1,8 @@ -/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2004 - 2013. 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. */ + * under the terms of the license (GNU LGPL) which comes with this package. */ #include "msg_private.h" #include "xbt/log.h" @@ -11,80 +11,124 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_io, msg, "Logging specific to MSG (io)"); /** @addtogroup msg_file_management - * \htmlonly \endhtmlonly + * \htmlonly \endhtmlonly * (#msg_file_t) and the functions for managing it. * * \see #msg_file_t */ /********************************* File **************************************/ +void __MSG_file_get_info(msg_file_t fd){ + xbt_dynar_t info = simcall_file_get_info(fd->simdata->smx_file); + fd->info->content_type = xbt_dynar_pop_as(info, char *); + fd->info->storage_type = xbt_dynar_pop_as(info, char *); + fd->info->storageId = xbt_dynar_pop_as(info, char *); + fd->info->mount_point = xbt_dynar_pop_as(info, char *); + fd->info->size = xbt_dynar_pop_as(info, size_t); + + xbt_dynar_free_container(&info); +} + +/** \ingroup msg_file_management + * + * \brief Set the user data of a #msg_file_t. + * + * This functions checks whether some data has already been associated to \a file + or not and attach \a data to \a file if it is possible. + */ +msg_error_t MSG_file_set_data(msg_file_t fd, void *data) +{ + SIMIX_file_set_data(fd->simdata->smx_file,data); + + return MSG_OK; +} + +/** \ingroup msg_file_management + * + * \brief Return the user data of a #msg_file_t. + * + * This functions checks whether \a file is a valid pointer or not and return + the user data associated to \a file if it is possible. + */ +void *MSG_file_get_data(msg_file_t fd) +{ + return SIMIX_file_get_data(fd->simdata->smx_file); +} + +/** \ingroup msg_file_management + * \brief Display information related to a file descriptor + * + * \param fd is a the file descriptor + */ + +void MSG_file_dump (msg_file_t fd){ +// THROW_UNIMPLEMENTED; + /* Update the cached information first */ + __MSG_file_get_info(fd); + XBT_INFO("File Descriptor information:\n\t\tFull name: '%s'" + "\n\t\tSize: %zu\n\t\tMount point: '%s'\n\t\tStorage Id: '%s'" + "\n\t\tStorage Type: '%s'\n\t\tContent Type: '%s'", + fd->fullname, fd->info->size, fd->info->mount_point, fd->info->storageId, + fd->info->storage_type, fd->info->content_type); +} /** \ingroup msg_file_management - * \brief Read elements of a file + * \brief Read a file * - * \param ptr buffer to where the data is copied - * \param size of each element - * \param nmemb is the number of elements of data to read - * \param stream to read - * \return the number of items successfully read + * \param size of the file to read + * \param fd is a the file descriptor + * \return the number of bytes successfully read */ -size_t MSG_file_read(void* ptr, size_t size, size_t nmemb, msg_file_t stream) +size_t MSG_file_read(size_t size, msg_file_t fd) { - return simcall_file_read(ptr, size, nmemb, stream->simdata->smx_file); + return simcall_file_read(size, fd->simdata->smx_file); } /** \ingroup msg_file_management - * \brief Write elements into a file + * \brief Write into a file * - * \param ptr buffer from where the data is copied - * \param size of each element - * \param nmemb is the number of elements of data to write - * \param stream to write - * \return the number of items successfully write + * \param size of the file to write + * \param fd is a the file descriptor + * \return the number of bytes successfully write */ -size_t MSG_file_write(const void* ptr, size_t size, size_t nmemb, msg_file_t stream) +size_t MSG_file_write(size_t size, msg_file_t fd) { - return simcall_file_write(ptr, size, nmemb, stream->simdata->smx_file); + return simcall_file_write(size, fd->simdata->smx_file); } /** \ingroup msg_file_management * \brief Opens the file whose name is the string pointed to by path * * \param mount is the mount point where find the file is located - * \param path is the file location on the storage - * \param mode points to a string beginning with one of the following sequences (Additional characters may follow these sequences.): - * r Open text file for reading. The stream is positioned at the beginning of the file. - * r+ Open for reading and writing. The stream is positioned at the beginning of the file. - * w Truncate file to zero length or create text file for writing. The stream is positioned at the beginning of the file. - * w+ Open for reading and writing. The file is created if it does not exist, otherwise it is truncated. The stream is positioned at the - * beginning of the file. - * a Open for appending (writing at end of file). The file is created if it does not exist. The stream is positioned at the end of the file. - * a+ Open for reading and appending (writing at end of file). The file is created if it does not exist. The initial file position for reading - * is at the beginning of the file, but output is always appended to the end of the file. + * \param fullname is the file location on the storage + * \param data user data to attach to the file * * \return An #msg_file_t associated to the file */ -msg_file_t MSG_file_open(const char* mount, const char* path, const char* mode) +msg_file_t MSG_file_open(const char* mount, const char* fullname, void* data) { msg_file_t file = xbt_new(s_msg_file_t,1); - file->name = strdup(path); + file->fullname = xbt_strdup(fullname); file->simdata = xbt_new0(s_simdata_file_t,1); - file->simdata->smx_file = simcall_file_open(mount, path, mode); + file->info = xbt_new0(s_file_info_t,1); + file->simdata->smx_file = simcall_file_open(mount, fullname); + SIMIX_file_set_data(file->simdata->smx_file, data); return file; } /** \ingroup msg_file_management * \brief Close the file * - * \param fp is the file to close + * \param fd is the file to close * \return 0 on success or 1 on error */ -int MSG_file_close(msg_file_t fp) +int MSG_file_close(msg_file_t fd) { - int res = simcall_file_close(fp->simdata->smx_file); - free(fp->name); - xbt_free(fp->simdata); - xbt_free(fp); + int res = simcall_file_close(fd->simdata->smx_file); + free(fd->fullname); + xbt_free(fd->simdata); + xbt_free(fd->info); + xbt_free(fd); return res; } @@ -96,11 +140,18 @@ int MSG_file_close(msg_file_t fp) */ int MSG_file_unlink(msg_file_t fd) { - int res = simcall_file_unlink(fd->simdata->smx_file); - free(fd->name); - xbt_free(fd->simdata); - xbt_free(fd); - return res; + return simcall_file_unlink(fd->simdata->smx_file); +} + +/** \ingroup msg_file_management + * \brief Return the size of a file + * + * \param fd is the file descriptor (#msg_file_t) + * \return the size of the file (as a size_t) + */ + +size_t MSG_file_get_size(msg_file_t fd){ + return simcall_file_get_size(fd->simdata->smx_file); } /** \ingroup msg_file_management @@ -126,3 +177,124 @@ xbt_dict_t MSG_file_ls(const char *mount, const char *path) return simcall_file_ls(mount, path); } + +/********************************* Storage **************************************/ + +/** @addtogroup msg_storage_management + * \htmlonly \endhtmlonly + * (#msg_storage_t) and the functions for managing it. + * + */ + + +/* TODO: PV: to comment */ +msg_storage_t __MSG_storage_create(smx_storage_t storage) +{ + const char *name = SIMIX_storage_get_name(storage); + xbt_lib_set(storage_lib,name,MSG_HOST_LEVEL,storage); + return xbt_lib_get_elm_or_null(storage_lib, name); +} + +/* + * \brief Destroys a storage (internal call only) + */ +void __MSG_storage_destroy(msg_storage_priv_t storage) { + + free(storage); +} + +/** \ingroup msg_storage_management + * + * \brief Returns the name of the #msg_storage_t. + * + * This functions checks whether a storage is a valid pointer or not and return its name. + */ +const char *MSG_storage_get_name(msg_storage_t storage) { + return SIMIX_storage_get_name(storage); +} + +/** \ingroup msg_storage_management + * \brief Returns the free space size of a storage element + * \param name the name of a storage + * \return the free space size of the storage element (as a size_t) + */ +size_t MSG_storage_get_free_size(const char* name){ + return simcall_storage_get_free_size(name); +} + +/** \ingroup msg_storage_management + * \brief Returns the used space size of a storage element + * \param name the name of a storage + * \return the used space size of the storage element (as a size_t) + */ +size_t MSG_storage_get_used_size(const char* name){ + return simcall_storage_get_used_size(name); +} + +/** \ingroup msg_storage_management + * \brief Returns a xbt_dict_t consisting of the list of properties assigned to this storage + * \param storage a storage + * \return a dict containing the properties + */ +xbt_dict_t MSG_storage_get_properties(msg_storage_t storage) +{ + xbt_assert((storage != NULL), "Invalid parameters (storage is NULL)"); + return (simcall_storage_get_properties(storage)); +} + +/** \ingroup msg_storage_management + * \brief Finds a msg_storage_t using its name. + * \param name the name of a storage + * \return the corresponding storage + */ +msg_storage_t MSG_storage_get_by_name(const char *name) +{ + return (msg_storage_t) xbt_lib_get_elm_or_null(storage_lib,name); +} + +/** \ingroup msg_storage_management + * \brief Returns a dynar containing all the storage elements declared at a given point of time + * + */ +xbt_dynar_t MSG_storages_as_dynar(void) { + + xbt_lib_cursor_t cursor; + char *key; + void **data; + xbt_dynar_t res = xbt_dynar_new(sizeof(msg_storage_t),NULL); + + xbt_lib_foreach(storage_lib, cursor, key, data) { + if(routing_get_network_element_type(key) == MSG_STORAGE_LEVEL) { + xbt_dictelm_t elm = xbt_dict_cursor_get_elm(cursor); + xbt_dynar_push(res, &elm); + } + } + + return res; +} + +/** \ingroup msg_storage_management + * + * \brief Set the user data of a #msg_storage_t. + * This functions checks whether some data has already been associated to \a storage + or not and attach \a data to \a storage if it is possible. + */ +msg_error_t MSG_storage_set_data(msg_storage_t storage, void *data) +{ + SIMIX_storage_set_data(storage,data); + + return MSG_OK; +} + +/** \ingroup msg_host_management + * + * \brief Returns the user data of a #msg_storage_t. + * + * This functions checks whether \a storage is a valid pointer or not and return + the user data associated to \a storage if it is possible. + */ +void *MSG_storage_get_data(msg_storage_t storage) +{ + return SIMIX_storage_get_data(storage); +} +