path: root/testsuites/sptests/spfifo02/init.c

/* SPDX-License-Identifier: BSD-2-Clause */

/*
 *  COPYRIGHT (c) 1989-2014.
 *  On-Line Applications Research Corporation (OAR).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <tmacros.h>
#include "test_support.h"

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <rtems/malloc.h>

const char rtems_test_name[] = "SPFIFO 2";

#define NUM_OPEN_REQ 26

static void create_fifo(void)
{
  int status;

  status = mkfifo("/fifo01", 0777);
  rtems_test_assert(status == 0);
}

static void open_fifo(int expected, int flags)
{
  int fd;

  fd = open("/fifo01", flags);
  printf( "expect status=%d errno=%d/(%s)\n", fd, errno, strerror(errno) );
  if ( expected ) {
    rtems_test_assert(fd == -1);
    rtems_test_assert(errno == expected); 
  } else {
    rtems_test_assert(fd != -1);
    close( fd );
  }
}

static rtems_task Init(
  rtems_task_argument argument
)
{
  void *p;
  int num_opens = 0;
  int index = 0;

  TEST_BEGIN();

  puts( "Creating FIFO" );
  create_fifo();

  p = rtems_heap_greedy_allocate(NULL, 0);
  puts("Opening FIFO.. expect ENOMEM since no memory is available");
  open_fifo(ENOMEM, O_RDWR);
  rtems_heap_greedy_free(p);

  puts( "Opening FIFO in RDWR mode. Expect OK" );
  open_fifo(0, O_RDWR);
  ++num_opens;

  puts( "Opening FIFO in non blocking RDONLY mode. Expect OK");
  open_fifo(0, O_RDONLY | O_NONBLOCK);
  ++num_opens;

  puts( "Opening FIFO in non blocking WRONLY mode. Expect ENXIO");
  open_fifo(ENXIO, O_WRONLY | O_NONBLOCK);
  ++num_opens;

  puts("\nMultiple opens\n");
  index = 0;
  do {

    printf("%d... ", index+1);
    open_fifo(0, O_RDONLY | O_NONBLOCK);
    ++index;
  } while ( index < NUM_OPEN_REQ - num_opens );

  TEST_END();

  rtems_test_exit(0);
}

/* configuration information */

#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_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_MAXIMUM_FILE_DESCRIPTORS 5

#define CONFIGURE_IMFS_ENABLE_MKFIFO

#define CONFIGURE_INIT

#include <rtems/confdefs.h>
/* end of file */