-/* 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.
+ *
+ * - <b>io/file.c</b> 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 <stdio.h>
#include <stdlib.h>
-#include "msg/msg.h"
-#include "surf/surf_private.h"
+#include "simgrid/msg.h"
int host(int argc, char *argv[]);
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 %zu", MSG_host_get_name(MSG_host_self()), read);
- size_t write = MSG_file_write(NULL,0,0,file);
- XBT_INFO("Host '%s' write %zu", 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<number_of_hosts; i++)
+ unsigned long nb_hosts = xbt_dynar_length(hosts);
+ XBT_INFO("Number of host '%lu'",nb_hosts);
+ for(i = 0 ; i<nb_hosts; i++)
{
char* name_host = bprintf("%d",i);
- MSG_process_create( name_host, host, NULL, host_table[i] );
+ MSG_process_create( name_host, host, NULL, xbt_dynar_get_as(hosts,i,msg_host_t) );
free(name_host);
}
- xbt_free(host_table);
+ xbt_dynar_free(&hosts);
res = MSG_main();
XBT_INFO("Simulation time %g", MSG_get_clock());
- MSG_clean();
if (res == MSG_OK)
return 0;
else
