static int host(int argc, char *argv[]){
const char* host_name = MSG_host_get_name(MSG_host_self());
/* - Display information on the disks mounted by the current host */
XBT_INFO("*** Storage info on %s ***", host_name);
xbt_dict_cursor_t cursor = NULL;
char* mount_name;
char* storage_name;
msg_storage_t storage = NULL;
/* - Retrieve all mount points of current host */
xbt_dict_t storage_list = MSG_host_get_mounted_storage_list(MSG_host_self());
xbt_dict_foreach(storage_list,cursor,mount_name,storage_name) {
/* - For each disk mounted on host:
- Retrieve disk's information */
XBT_INFO("Storage name: %s, mount name: %s", storage_name, mount_name);
storage = MSG_storage_get_by_name(storage_name);
sg_size_t free_size = MSG_storage_get_free_size(storage);
sg_size_t used_size = MSG_storage_get_used_size(storage);
sg_size_t size = MSG_storage_get_size(storage);
XBT_INFO("Total size: %llu bytes", size);
XBT_INFO("Free size: %llu bytes", free_size);
XBT_INFO("Used size: %llu bytes", used_size);
}
void storage_info(msg_host_t host)
{
const char* host_name = MSG_host_get_name(host);
XBT_INFO("*** Storage info on %s ***", host_name);
xbt_dict_cursor_t cursor = NULL;
char* mount_name;
char* storage_name;
msg_storage_t storage;
xbt_dict_t storage_list = MSG_host_get_mounted_storage_list(MSG_host_self());
xbt_dict_foreach(storage_list,cursor,mount_name,storage_name)
{
XBT_INFO("\tStorage name: %s, mount name: %s", storage_name, mount_name);
storage = MSG_storage_get_by_name(storage_name);
sg_size_t free_size = MSG_storage_get_free_size(storage);
sg_size_t used_size = MSG_storage_get_used_size(storage);
XBT_INFO("\t\tFree size: %llu bytes", free_size);
XBT_INFO("\t\tUsed size: %llu bytes", used_size);
display_storage_properties(storage);
dump_storage_by_name(storage_name);
}
JNIEXPORT jlong JNICALL Java_org_simgrid_msg_Storage_getFreeSize(JNIEnv * env,jobject jstorage) {
msg_storage_t storage = jstorage_get_native(env, jstorage);
if (!storage) {
jxbt_throw_notbound(env, "storage", jstorage);
return -1;
}
return (jlong) MSG_storage_get_free_size(storage);
}
}
xbt_dict_free(&storage_list);
/* - Create a 200,000 bytes file named './tmp/data.txt' on /sd1 */
char* file_name = xbt_strdup("/home/tmp/data.txt");
msg_file_t file = NULL;
sg_size_t write, read, file_size;
/* - Open an non-existing file which amounts to create it. */
file = MSG_file_open(file_name, NULL);
write = MSG_file_write(file, 200000); // Write 200,000 bytes
XBT_INFO("Create a %llu bytes file named '%s' on /sd1", write, file_name);
MSG_file_dump(file);
/* - Check that sizes have changed */
XBT_INFO("Free size: %llu bytes", MSG_storage_get_free_size(storage));
XBT_INFO("Used size: %llu bytes", MSG_storage_get_used_size(storage));
/* - Retrieve the size of created file and read it completely */
file_size = MSG_file_get_size(file);
MSG_file_seek(file, 0, SEEK_SET);
read = MSG_file_read(file, file_size);
XBT_INFO("Read %llu bytes on %s", read, file_name);
/* - Then write 100,000 bytes in tmp/data.txt */
write = MSG_file_write(file, 100000); // Write 100,000 bytes
XBT_INFO("Write %llu bytes on %s", write, file_name);
MSG_file_dump(file);
storage_name = xbt_strdup("Disk4");
storage = MSG_storage_get_by_name(storage_name);
