Start to get rid of storage examples in MSG

[simgrid.git] / examples / c / io-disk-raw / io-disk-raw.c

diff --git a/examples/c/io-disk-raw/io-disk-raw.c b/examples/c/io-disk-raw/io-disk-raw.c
new file mode 100644 (file)
index 0000000..4349974
--- /dev/null
+++ b/examples/c/io-disk-raw/io-disk-raw.c
@@ -0,0 +1,91 @@
+/* Copyright (c) 2006-2020. 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. */
+
+#include "simgrid/actor.h"
+#include "simgrid/disk.h"
+#include "simgrid/engine.h"
+#include "simgrid/forward.h"
+#include "simgrid/host.h"
+#include "xbt/dict.h"
+#include "xbt/log.h"
+#include "xbt/sysdep.h"
+
+#include <stddef.h>
+#include <stdlib.h>
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(disk, "Messages specific for this simulation");
+
+static void host(XBT_ATTRIB_UNUSED int argc, XBT_ATTRIB_UNUSED char* argv[])
+{
+  const char* host_name = sg_host_get_name(sg_host_self());
+
+  /* - Display information on the disks mounted by the current host */
+  XBT_INFO("*** Storage info on %s ***", host_name);
+
+  /* - Retrieve all disks from current host */
+  unsigned int disk_count;
+  sg_disk_t* disk_list;
+  sg_host_disks(sg_host_self(), &disk_count, &disk_list);
+
+  for (unsigned int i = 0; i < disk_count; i++)
+    XBT_INFO("Disk name: %s (read: %.0f B/s -- write: %.0f B/s ", sg_disk_name(disk_list[i]),
+             sg_disk_read_bandwidth(disk_list[i]), sg_disk_write_bandwidth(disk_list[i]));
+
+  /* - Write 400,000 bytes on Disk1 */
+  sg_disk_t disk  = disk_list[0];
+  sg_size_t write = sg_disk_write(disk, 400000);
+  XBT_INFO("Wrote %llu bytes on '%s'", write, sg_disk_name(disk));
+
+  /*  - Now read 200,000 bytes */
+  sg_size_t read = sg_disk_read(disk, 200000);
+  XBT_INFO("Read %llu bytes on '%s'", read, sg_disk_name(disk));
+
+  /* - Attach some user data to disk1 */
+  XBT_INFO("*** Get/set data for storage element: Disk1 ***");
+
+  char* data = (char*)sg_disk_data(disk);
+
+  XBT_INFO("Get storage data: '%s'", data ? data : "No user data");
+
+  sg_disk_data_set(disk, xbt_strdup("Some user data"));
+  data = (char*)sg_disk_data(disk);
+  XBT_INFO("Set and get data: '%s'", data);
+  free(data);
+  free(disk_list);
+}
+
+int main(int argc, char* argv[])
+{
+  simgrid_init(&argc, argv);
+  simgrid_load_platform(argv[1]);
+
+  simgrid_register_function("host", host);
+
+  size_t host_count;
+  sg_host_t* hosts;
+  simgrid_get_all_hosts(&host_count, &hosts);
+
+  for (long i = 0; i < host_count; i++) {
+    XBT_INFO("*** %s properties ****", sg_host_get_name(hosts[i]));
+    xbt_dict_t props         = sg_host_get_properties(hosts[i]);
+    xbt_dict_cursor_t cursor = NULL;
+    char* key;
+    void* data;
+    xbt_dict_foreach (props, cursor, key, data)
+      XBT_INFO("  %s -> %s", key, (char*)data);
+    xbt_dict_free(&props);
+  }
+
+  free(hosts);
+
+  sg_actor_t actor = sg_actor_init("", sg_host_by_name("bob"));
+  sg_actor_start(actor, host, 0, NULL);
+
+  simgrid_run();
+
+  XBT_INFO("Simulated time %g", simgrid_get_clock());
+
+  return 0;
+}