1 /* Copyright (c) 2004 - 2013. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "msg_private.h"
10 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_io, msg,
11 "Logging specific to MSG (io)");
13 /** @addtogroup msg_file_management
14 * \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Files" --> \endhtmlonly
15 * (#msg_file_t) and the functions for managing it.
20 /********************************* File **************************************/
22 /** \ingroup msg_file_management
23 * \brief Read elements of a file
25 * \param ptr buffer to where the data is copied
26 * \param size of each element
27 * \param nmemb is the number of elements of data to read
28 * \param stream to read
29 * \return the number of items successfully read
31 size_t MSG_file_read(void* ptr, size_t size, size_t nmemb, msg_file_t stream)
33 return simcall_file_read(ptr, size, nmemb, stream->simdata->smx_file);
36 /** \ingroup msg_file_management
37 * \brief Write elements into a file
39 * \param ptr buffer from where the data is copied
40 * \param size of each element
41 * \param nmemb is the number of elements of data to write
42 * \param stream to write
43 * \return the number of items successfully write
45 size_t MSG_file_write(const void* ptr, size_t size, size_t nmemb, msg_file_t stream)
47 return simcall_file_write(ptr, size, nmemb, stream->simdata->smx_file);
50 /** \ingroup msg_file_management
51 * \brief Opens the file whose name is the string pointed to by path
53 * \param mount is the mount point where find the file is located
54 * \param path is the file location on the storage
56 * \return An #msg_file_t associated to the file
58 msg_file_t MSG_file_open(const char* mount, const char* path)
60 msg_file_t file = xbt_new(s_msg_file_t,1);
61 file->name = strdup(path);
62 file->simdata = xbt_new0(s_simdata_file_t,1);
63 file->simdata->smx_file = simcall_file_open(mount, path);
67 /** \ingroup msg_file_management
68 * \brief Close the file
70 * \param fd is the file to close
71 * \return 0 on success or 1 on error
73 int MSG_file_close(msg_file_t fd)
75 int res = simcall_file_close(fd->simdata->smx_file);
77 xbt_free(fd->simdata);
82 /** \ingroup msg_file_management
83 * \brief Unlink the file pointed by fd
85 * \param fd is the file descriptor (#msg_file_t)
86 * \return 0 on success or 1 on error
88 int MSG_file_unlink(msg_file_t fd)
90 int res = simcall_file_unlink(fd->simdata->smx_file);
92 xbt_free(fd->simdata);
97 /** \ingroup msg_file_management
98 * \brief Return the size of a file
100 * \param fd is the file descriptor (#msg_file_t)
101 * \return the size of the file (as a size_t)
104 size_t MSG_file_get_size(msg_file_t fd){
105 return simcall_file_get_size(fd->simdata->smx_file);
108 /** \ingroup msg_file_management
109 * \brief Search for file
111 * \param mount is the mount point where find the file is located
112 * \param path the file regex to find
113 * \return a xbt_dict_t of file where key is the name of file and the
114 * value the msg_stat_t corresponding to the key
116 xbt_dict_t MSG_file_ls(const char *mount, const char *path)
118 xbt_assert(path,"You must set path");
119 int size = strlen(path);
120 if(size && path[size-1] != '/')
122 char *new_path = bprintf("%s/",path);
123 XBT_DEBUG("Change '%s' for '%s'",path,new_path);
124 xbt_dict_t dict = simcall_file_ls(mount, new_path);
129 return simcall_file_ls(mount, path);