Bugfix in msg/io example

[simgrid.git] / examples / msg / io / file.c

diff --git a/examples/msg/io/file.c b/examples/msg/io/file.c
index 69e45db..ed8e91a 100644 (file)
--- a/examples/msg/io/file.c
+++ b/examples/msg/io/file.c
@@ -4,6 +4,22 @@
 /* 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/user/Install/simgrid/doc/simgrid/examples/platforms/g5k.xml"
+#define FILENAME2 "/home/user/Install/simgrid/doc/simgrid/examples/platforms/One_cluster_no_backbone.xml"
+#define FILENAME3 "/home/user/Install/simgrid/doc/simgrid/examples/platforms/g5k_cabinets.xml"
+#define FILENAME4 "/home/user/Install/simgrid/doc/simgrid/examples/platforms/nancy.xml"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include "msg/msg.h"
@@ -16,23 +32,38 @@ XBT_LOG_NEW_DEFAULT_CATEGORY(io_file,
 
 int host(int argc, char *argv[])
 {
-  m_file_t file;
-  char* mount = bprintf("C:");
+  msg_file_t file = NULL;
+  s_msg_stat_t stat;
+  void *ptr = NULL;
+  char* mount = bprintf("/home");
+  size_t read,write;
+
+  if(!strcmp(MSG_process_get_name(MSG_process_self()),"0"))
+    file = MSG_file_open(mount,FILENAME1,"rw");
+  else if(!strcmp(MSG_process_get_name(MSG_process_self()),"1"))
+    file = MSG_file_open(mount,FILENAME2,"rw");
+  else if(!strcmp(MSG_process_get_name(MSG_process_self()),"2"))
+    file = MSG_file_open(mount,FILENAME3,"rw");
+  else if(!strcmp(MSG_process_get_name(MSG_process_self()),"3"))
+    file = MSG_file_open(mount,FILENAME4,"rw");
+  else xbt_die("FILENAME NOT DEFINED %s",MSG_process_get_name(MSG_process_self()));
+
+  XBT_INFO("\tOpen file '%s'",file->name);
 
-  file = MSG_file_open(mount,"test.txt","rw");
-  XBT_INFO("Host '%s' open %p",MSG_host_get_name(MSG_host_self()), file);
+  read = MSG_file_read(ptr,10000000,sizeof(char*),file);     // Read for 10Mo
+  XBT_INFO("\tHaving read  %zu \ton %s",read,file->name);
 
-  size_t read = MSG_file_read(mount,NULL,0,0,file);
-  XBT_INFO("Host '%s' read %zu", MSG_host_get_name(MSG_host_self()), read);
+  write = MSG_file_write(ptr,100000,sizeof(char*),file);  // Write for 100Ko
+  XBT_INFO("\tHaving write %zu \ton %s",write,file->name);
 
-  size_t write = MSG_file_write(mount,NULL,0,0,file);
-  XBT_INFO("Host '%s' write %zu", MSG_host_get_name(MSG_host_self()), write);
+  read = MSG_file_read(ptr,10000000,sizeof(char*),file);     // Read for 10Mo
+  XBT_INFO("\tHaving read  %zu \ton %s",read,file->name);
 
-  int res = MSG_file_stat(mount,0,NULL);
-  XBT_INFO("Host '%s' stat %d",MSG_host_get_name(MSG_host_self()), res);
+  MSG_file_stat(file,&stat);
+  XBT_INFO("\tFile %s Size %d",file->name,(int)stat.size);
 
-  res = MSG_file_close(mount,file);
-  XBT_INFO("Host '%s' close %d",MSG_host_get_name(MSG_host_self()), res);
+  XBT_INFO("\tClose file '%s'",file->name);
+  MSG_file_close(file);
 
   free(mount);
   return 0;