X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/47ac9cef9d5cf9ccf4739355db1e0bb3d90dda33..c2bebbceae24bb9a74fe034c71862c84a6193e7f:/examples/msg/io/file.c
diff --git a/examples/msg/io/file.c b/examples/msg/io/file.c
index c490eb0396..e42f2b6b35 100644
--- a/examples/msg/io/file.c
+++ b/examples/msg/io/file.c
@@ -1,13 +1,28 @@
-/* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2008-2010, 2012-2015. 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. */
+/** @addtogroup MSG_examples
+ *
+ * @subsection MSG_ex_resources Other resource kinds
+ *
+ * This section contains some sparse examples of how to use the other
+ * kind of resources, such as disk or GPU. These resources are quite
+ * experimental for now, but here we go anyway.
+ *
+ * - io/file.c Example with the disk resource
+ */
+
+#define FILENAME1 "/home/doc/simgrid/examples/platforms/g5k.xml"
+#define FILENAME2 "c:\\Windows\\setupact.log"
+#define FILENAME3 "/home/doc/simgrid/examples/platforms/g5k_cabinets.xml"
+#define FILENAME4 "/home/doc/simgrid/examples/platforms/nancy.xml"
+
#include
#include
-#include "msg/msg.h"
-#include "surf/surf_private.h"
+#include "simgrid/msg.h"
int host(int argc, char *argv[]);
@@ -16,48 +31,95 @@ XBT_LOG_NEW_DEFAULT_CATEGORY(io_file,
int host(int argc, char *argv[])
{
- m_file_t file;
- file = MSG_file_open("test.txt","rw");
- XBT_INFO("Host '%s' open %p",MSG_host_get_name(MSG_host_self()), file);
+ msg_file_t file = NULL;
+ sg_size_t read,write;
+ msg_storage_t st;
+ const char* st_name;
+
+ if(!strcmp(MSG_process_get_name(MSG_process_self()),"0")){
+ file = MSG_file_open(FILENAME1, NULL);
+ MSG_file_dump(file);
+ st_name = "Disk4";
+ } else if(!strcmp(MSG_process_get_name(MSG_process_self()),"1")) {
+ file = MSG_file_open(FILENAME2, NULL);
+ st_name = "Disk2";
+ } else if(!strcmp(MSG_process_get_name(MSG_process_self()),"2")){
+ file = MSG_file_open(FILENAME3, NULL);
+ st_name = "Disk3";
+ } else if(!strcmp(MSG_process_get_name(MSG_process_self()),"3")){
+ file = MSG_file_open(FILENAME4, NULL);
+ st_name = "Disk1";
+ }
+ else xbt_die("FILENAME NOT DEFINED %s",MSG_process_get_name(MSG_process_self()));
+
+ const char* filename = MSG_file_get_name(file);
+ XBT_INFO("\tOpen file '%s'",filename);
+ st = MSG_storage_get_by_name(st_name);
+
+ XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
+ filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
+
+ /* Try to read for 10MB */
+ read = MSG_file_read(file, 10000000);
+ XBT_INFO("\tHave read %llu from '%s'",read,filename);
+
+ /* Write 100KB in file from the current position, i.e, end of file or 10MB */
+ write = MSG_file_write(file, 100000);
+ XBT_INFO("\tHave written %llu in '%s'. Size now is: %llu",write,filename,
+ MSG_file_get_size(file));
- size_t read = MSG_file_read(NULL,0,0,file);
- XBT_INFO("Host '%s' read %ld",MSG_host_get_name(MSG_host_self()),read);
- size_t write = MSG_file_write(NULL,0,0,file);
- XBT_INFO("Host '%s' write %ld",MSG_host_get_name(MSG_host_self()), write);
+ XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
+ filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
+
+ /* rewind to the beginning of the file */
+ XBT_INFO("\tComing back to the beginning of the stream for file '%s'",
+ filename);
+ MSG_file_seek(file, 0, SEEK_SET);
+
+ /* Try to read 110KB */
+ read = MSG_file_read(file, 110000);
+ XBT_INFO("\tHave read %llu from '%s' (of size %llu)",read,filename,
+ MSG_file_get_size(file));
+
+ /* rewind once again to the beginning of the file */
+ XBT_INFO("\tComing back to the beginning of the stream for file '%s'",
+ filename);
+ MSG_file_seek(file, 0, SEEK_SET);
+
+ /* Write 110KB in file from the current position, i.e, end of file or 10MB */
+ write = MSG_file_write(file, 110000);
+ XBT_INFO("\tHave written %llu in '%s'. Size now is: %llu", write,filename,
+ MSG_file_get_size(file));
+
+ XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
+ filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
+
+ XBT_INFO("\tClose file '%s'",filename);
+ MSG_file_close(file);
- int res = MSG_file_stat(0,NULL);
- XBT_INFO("Host '%s' stat %d",MSG_host_get_name(MSG_host_self()), res);
- res = MSG_file_close(file);
- XBT_INFO("Host '%s' close %d",MSG_host_get_name(MSG_host_self()), res);
return 0;
}
int main(int argc, char **argv)
{
- int i,res;
- MSG_global_init(&argc, argv);
+ int i,res;
+ MSG_init(&argc, argv);
MSG_create_environment(argv[1]);
- m_host_t *host_table = MSG_get_host_table();
- int number_of_hosts = MSG_get_host_number();
+ xbt_dynar_t hosts = MSG_hosts_as_dynar();
MSG_function_register("host", host);
-
- XBT_INFO("Number of host '%d'",number_of_hosts);
- for(i = 0 ; i