X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/50c07172efbd6c3b73c787c2c200048d3205b640..1784bdccf796c18fbf46d8359c0d6b9bddb4b195:/src/msg/msg_io.c diff --git a/src/msg/msg_io.c b/src/msg/msg_io.c index 6c8817e1e2..d0b77c5251 100644 --- a/src/msg/msg_io.c +++ b/src/msg/msg_io.c @@ -1,8 +1,8 @@ -/* Copyright (c) 2004 - 2013. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2004-2014. 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" @@ -11,13 +11,55 @@ 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){ + + msg_file_priv_t priv = MSG_file_priv(fd); + xbt_dynar_t info = simcall_file_get_info(priv->simdata->smx_file); + sg_size_t *psize; + + priv->content_type = xbt_dynar_pop_as(info, char *); + priv->storage_type = xbt_dynar_pop_as(info, char *); + priv->storageId = xbt_dynar_pop_as(info, char *); + priv->mount_point = xbt_dynar_pop_as(info, char *); + psize = xbt_dynar_pop_as(info, sg_size_t*); + priv->size = *psize; + xbt_free(psize); + 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) +{ + msg_file_priv_t priv = MSG_file_priv(fd); + priv->data = 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) +{ + msg_file_priv_t priv = MSG_file_priv(fd); + return priv->data; +} /** \ingroup msg_file_management * \brief Display information related to a file descriptor @@ -26,13 +68,20 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_io, msg, */ void MSG_file_dump (msg_file_t fd){ - THROW_UNIMPLEMENTED; /* Update the cached information first */ -// fd->info = __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\t Storage Id: '%s'" -// "\n\t\t Content Type: '%s'", fd->fullname, fd->info->size, NULL,NULL,NULL); -// fd->info->mount_point, fd->info->storageId, fd->info->content_type); + __MSG_file_get_info(fd); + + msg_file_priv_t priv = MSG_file_priv(fd); + XBT_INFO("File Descriptor information:\n" + "\t\tFull name: '%s'\n" + "\t\tSize: %llu\n" + "\t\tMount point: '%s'\n" + "\t\tStorage Id: '%s'\n" + "\t\tStorage Type: '%s'\n" + "\t\tContent Type: '%s'", + priv->fullname, priv->size, priv->mount_point, + priv->storageId, priv->storage_type, + priv->content_type); } /** \ingroup msg_file_management @@ -42,9 +91,10 @@ void MSG_file_dump (msg_file_t fd){ * \param fd is a the file descriptor * \return the number of bytes successfully read */ -size_t MSG_file_read(size_t size, msg_file_t fd) +sg_size_t MSG_file_read(msg_file_t fd, sg_size_t size) { - return simcall_file_read(size, fd->simdata->smx_file); + msg_file_priv_t priv = MSG_file_priv(fd); + return simcall_file_read(priv->simdata->smx_file, size); } /** \ingroup msg_file_management @@ -54,26 +104,39 @@ size_t MSG_file_read(size_t size, msg_file_t fd) * \param fd is a the file descriptor * \return the number of bytes successfully write */ -size_t MSG_file_write(size_t size, msg_file_t fd) +sg_size_t MSG_file_write(msg_file_t fd, sg_size_t size) { - return simcall_file_write(size, fd->simdata->smx_file); + msg_file_priv_t priv = MSG_file_priv(fd); + return simcall_file_write(priv->simdata->smx_file, size); } /** \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 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* fullname) +msg_file_t MSG_file_open(const char* mount,const char* fullname, void* data) +{ + msg_file_priv_t priv = xbt_new(s_msg_file_priv_t, 1); + priv->data = data; + priv->fullname = xbt_strdup(fullname); + priv->simdata = xbt_new0(s_simdata_file_t,1); + priv->simdata->smx_file = simcall_file_open(mount, fullname); + xbt_lib_set(file_lib, fullname, MSG_FILE_LEVEL, priv); + return (msg_file_t) xbt_lib_get_elm_or_null(file_lib, fullname); +} + +/** + * \brief Frees private data of a file (internal call only) + */ +void __MSG_file_priv_free(msg_file_priv_t priv) { - msg_file_t file = xbt_new(s_msg_file_t,1); - file->fullname = xbt_strdup(fullname); - file->simdata = xbt_new0(s_simdata_file_t,1); - file->simdata->smx_file = simcall_file_open(mount, fullname); - return file; + xbt_free(&priv->simdata->smx_file); + free(priv); } /** \ingroup msg_file_management @@ -84,10 +147,9 @@ msg_file_t MSG_file_open(const char* mount, const char* fullname) */ int MSG_file_close(msg_file_t fd) { - int res = simcall_file_close(fd->simdata->smx_file); - free(fd->fullname); - xbt_free(fd->simdata); - xbt_free(fd); + msg_file_priv_t priv = MSG_file_priv(fd); + int res = simcall_file_close(priv->simdata->smx_file); + xbt_lib_unset(file_lib, priv->fullname, MSG_FILE_LEVEL, 1); return res; } @@ -99,18 +161,20 @@ int MSG_file_close(msg_file_t fd) */ int MSG_file_unlink(msg_file_t fd) { - return simcall_file_unlink(fd->simdata->smx_file); + msg_file_priv_t priv = MSG_file_priv(fd); + int res = simcall_file_unlink(priv->simdata->smx_file); + return res; } /** \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) + * \return the size of the file (as a #sg_size_t) */ - -size_t MSG_file_get_size(msg_file_t fd){ - return simcall_file_get_size(fd->simdata->smx_file); +sg_size_t MSG_file_get_size(msg_file_t fd){ + msg_file_priv_t priv = MSG_file_priv(fd); + return simcall_file_get_size(priv->simdata->smx_file); } /** \ingroup msg_file_management @@ -137,11 +201,223 @@ xbt_dict_t MSG_file_ls(const char *mount, const char *path) return simcall_file_ls(mount, path); } +/** + * \ingroup msg_file_management + * \brief Set the file position indicator in the msg_file_t by adding offset bytes + * to the position specified by origin (either SEEK_SET, SEEK_CUR, or SEEK_END). + * + * \param fd : file object that identifies the stream + * \param offset : number of bytes to offset from origin + * \param origin : Position used as reference for the offset. It is specified by + * one of the following constants defined in \ exclusively to be used as + * arguments for this function (SEEK_SET = beginning of file, SEEK_CUR = current + * position of the file pointer, SEEK_END = end of file) + * + * \return If successful, the function returns MSG_OK (=0). Otherwise, it returns + * MSG_TASK_CANCELED (=8). + * + */ +msg_error_t MSG_file_seek(msg_file_t fd, sg_size_t offset, int origin) +{ + msg_file_priv_t priv = MSG_file_priv(fd); + return simcall_file_seek(priv->simdata->smx_file, offset, origin); +} + +/** + * \ingroup msg_file_management + * \brief Returns the current value of the position indicator of the file + * + * \param fd : file object that identifies the stream + * \return On success, the current value of the position indicator is returned. + * + */ +sg_size_t MSG_file_tell(msg_file_t fd) +{ + msg_file_priv_t priv = MSG_file_priv(fd); + return simcall_file_tell(priv->simdata->smx_file); +} + +const char *MSG_file_get_name(msg_file_t fd) { + xbt_assert((fd != NULL), "Invalid parameters"); + msg_file_priv_t priv = MSG_file_priv(fd); + return priv->fullname; +} + + +/* + * \brief Destroys a file (internal call only) + */ +void __MSG_file_destroy(msg_file_priv_t file) { + xbt_free(file); +} +/********************************* Storage **************************************/ + +/** @addtogroup msg_storage_management + * \htmlonly \endhtmlonly + * (#msg_storage_t) and the functions for managing it. + * + */ + +msg_storage_t __MSG_storage_create(smx_storage_t storage) +{ + const char *name = SIMIX_storage_get_name(storage); + msg_storage_priv_t storage_private = xbt_new0(s_msg_storage_priv_t, 1); + xbt_lib_set(storage_lib,name,MSG_STORAGE_LEVEL,storage_private); + 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) { + xbt_assert((storage != NULL), "Invalid parameters"); + 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 #sg_size_t) + */ +sg_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 #sg_size_t) + */ +sg_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 Change the value of a given storage property + * + * \param storage a storage + * \param name a property name + * \param value what to change the property to + * \param free_ctn the freeing function to use to kill the value on need + */ +void MSG_storage_set_property_value(msg_storage_t storage, const char *name, char *value,void_f_pvoid_t free_ctn) { + xbt_dict_set(MSG_storage_get_properties(storage), name, value,free_ctn); +} + +/** \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 returns + 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); +} + /** \ingroup msg_storage_management - * \brief Return the free space size of a storage element - * \param sd is the storage descriptor (#msg_storage_t) - * \return the free space size of the storage element (as a size_t) + * + * \brief Returns the content (file list) of a #msg_storage_t. + * \param storage a storage + * \return The content of this storage element as a dict (full path file => size) */ -size_t MSG_storage_get_free_size(msg_storage_t sd){ - return simcall_storage_get_free_size(sd->simdata->smx_storage); +xbt_dict_t MSG_storage_get_content(msg_storage_t storage) +{ + return SIMIX_storage_get_content(storage); +} + +sg_size_t MSG_storage_get_size(msg_storage_t storage) +{ + return SIMIX_storage_get_size(storage); +} + +/** + * \ingroup msg_storage_management + * + * \brief Rename the file in the contents of its associated storage. + */ +msg_error_t MSG_storage_file_rename(msg_storage_t storage, const char* src, const char* dest) +{ + simcall_storage_file_rename(storage, src, dest); + return MSG_OK; +} + +/** + * \ingroup msg_storage_management + * \brief Move a file to another location. Depending on the values of dest, dest, mount, + * and fullname, this move can be local or remote and, within a host, on the same + * mounted disk or between mounted disks. + * + */ +msg_error_t MSG_storage_file_move (msg_file_t fd, msg_host_t dest, char* mount, char* fullname) +{ + THROW_UNIMPLEMENTED; + return MSG_OK; }