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/*
* COPYRIGHT (c) 2010
* Bharath Suri<bharath.s.jois@gmail.com>.
*
* 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.
*
* $Id$
*/
/* Includes */
#include <bsp.h>
#include <tmacros.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <rtems.h>
#include <rtems/libio.h>
#define NUM_OPEN_REQ 26
void test_main(void)
{
int status = -1;
int fd = 0;
int index = 0;
int num_opens = 0;
puts("\n\n*** FIFO / PIPE OPEN TEST - 4 ***");
puts(
"\n\nConfiguration: Pipes configured, \
but number of barriers configured = 2\n"
);
puts("\n\nCreating directory /tmp");
status = mkdir("/tmp", 0777);
rtems_test_assert(status == 0);
puts("\n\nCreating fifo /tmp/fifo");
status = mkfifo("/tmp/fifo01", 0777);
rtems_test_assert(status == 0);
puts("\n\nAttempt to open the fifo file in RDWR mode\n");
puts("Should be successful and non-negative\
file descriptor expected");
fd = open("/tmp/fifo01", O_RDWR);
rtems_test_assert(fd > 0);
++num_opens;
puts("\n\nClosing the fifo file");
status = close(fd);
rtems_test_assert(status == 0);
puts("\n\nAttempt to open the fifo file in \
RDONLY and NONBLOCK mode\n");
puts("Should be successful and non-negative\
file descriptor expected");
fd = open("/tmp/fifo01", O_RDONLY | O_NONBLOCK);
rtems_test_assert(fd > 0);
++num_opens;
puts("\n\nClosing the fifo file");
status = close(fd);
rtems_test_assert(status == 0);
puts("\n\nAttempt to open the fifo file in \
WRONLY and NONBLOCK mode\n");
puts("Should return with an error ENXIO");
fd = open("/tmp/fifo01", O_WRONLY | O_NONBLOCK);
rtems_test_assert(fd == -1);
rtems_test_assert(errno == ENXIO);
++num_opens;
// Number of attempts to open fifo till now = 3
// Number of attempts to move the static char
// from 'a' -> 'z' = 26
// => Number of opens required = 23
puts("\n\nMultiple opens\n");
for(index = 0; index < NUM_OPEN_REQ - num_opens; ++index) {
fd = open("/tmp/fifo01", O_RDONLY | O_NONBLOCK);
rtems_test_assert(fd > 0);
status = close(fd);
rtems_test_assert(status == 0);
printf("%d... ", index+1);
}
puts("\n\nRemove the entry /tmp/fifo01");
status = unlink("/tmp/fifo01");
rtems_test_assert(status == 0);
puts("\n\nRemove directory /tmp");
status = rmdir("/tmp");
rtems_test_assert(status == 0);
puts("\n\n*** END OF FIFO / PIPE OPEN TEST - 4 ***");
}
rtems_task Init(
rtems_task_argument not_used
)
{
test_main();
rtems_test_exit(0);
}
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 6
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_PIPES_ENABLED
#define CONFIGURE_INIT
#define CONFIGURE_MAXIMUM_BARRIERS 2
#include <rtems/confdefs.h>
/* end of file */
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