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/*
* COPYRIGHT (c) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* Modifications to support reference counting in the file system are
* Copyright (c) 2012 embedded brains GmbH.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "test_support.h"
#include <tmacros.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <rtems/devfs.h>
#include <rtems/malloc.h>
const char rtems_test_name[] = "DEVFS 2";
/* forward declarations to avoid warnings */
rtems_task Init(rtems_task_argument argument);
rtems_task Init(
rtems_task_argument argument
)
{
int status;
rtems_filesystem_location_info_t *rootloc = &rtems_filesystem_root->location;
const devFS_data *data = rootloc->mt_entry->immutable_fs_info;
devFS_data zero_count_data = {
.nodes = data->nodes,
.count = 0
};
void *opaque;
TEST_BEGIN();
puts( "Init - attempt to create a fifo - expect ENOTSUP" );
status = mkfifo( "/fifo01", 0 );
rtems_test_assert( status == -1 );
rtems_test_assert( errno == ENOTSUP );
/* Manipulate the device table size */
puts( "Init - set device table size to zero" );
rootloc->mt_entry->immutable_fs_info = &zero_count_data;
puts( "Init - attempt to create a node - expect ENOSPC" );
status = mknod( "/node", S_IFBLK, 0LL );
rtems_test_assert( status == -1 );
rtems_test_assert( errno == ENOSPC );
/* Now restore */
puts( "Init - restore device table size" );
rootloc->mt_entry->immutable_fs_info = data;
opaque = rtems_heap_greedy_allocate( NULL, 0 );
puts( "Init - attempt to create a node - expect ENOMEM" );
status = mknod( "/node", S_IFBLK, 0LL );
rtems_test_assert( status == -1 );
rtems_test_assert( errno == ENOMEM );
rtems_heap_greedy_free( opaque );
puts( "Init - attempt to create /node -- OK" );
status = mknod( "/node", S_IFBLK, 0LL );
rtems_test_assert( status == 0 );
puts( "Init - attempt to create /node - expect EEXIST" );
status = mknod( "/node", S_IFBLK, 0LL );
rtems_test_assert( status == -1 );
rtems_test_assert( errno == EEXIST );
TEST_END();
rtems_test_exit(0);
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 5
#define CONFIGURE_USE_DEVFS_AS_BASE_FILESYSTEM
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of file */
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