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/**
* @file
*
* @brief RTEMS LibIO Initialization
* @ingroup LibIO
*/
/*
* COPYRIGHT (c) 1989-2010.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/libio_.h> /* libio_.h pulls in rtems */
#include <rtems.h>
#include <rtems/assoc.h> /* assoc.h not included by rtems.h */
#include <stdio.h> /* O_RDONLY, et.al. */
#include <fcntl.h> /* O_RDONLY, et.al. */
#include <errno.h>
#include <errno.h>
#include <string.h> /* strcmp */
#include <unistd.h>
#include <stdlib.h> /* calloc() */
#include <rtems/libio.h> /* libio.h not pulled in by rtems */
#include <rtems/sysinit.h>
/*
* File descriptor Table Information
*/
rtems_id rtems_libio_semaphore;
rtems_libio_t *rtems_libio_iop_freelist;
static void rtems_libio_init( void )
{
rtems_status_code rc;
uint32_t i;
rtems_libio_t *iop;
int eno;
if (rtems_libio_number_iops > 0)
{
iop = rtems_libio_iop_freelist = &rtems_libio_iops[0];
for (i = 0 ; (i + 1) < rtems_libio_number_iops ; i++, iop++)
iop->data1 = iop + 1;
iop->data1 = NULL;
}
/*
* Create the posix key for user environment.
*/
eno = pthread_key_create(
&rtems_current_user_env_key,
rtems_libio_free_user_env
);
if (eno != 0) {
_Internal_error( INTERNAL_ERROR_LIBIO_USER_ENV_KEY_CREATE_FAILED );
}
/*
* Create the binary semaphore used to provide mutual exclusion
* on the IOP Table.
*/
rc = rtems_semaphore_create(
RTEMS_LIBIO_SEM,
1,
RTEMS_BINARY_SEMAPHORE | RTEMS_INHERIT_PRIORITY | RTEMS_PRIORITY,
RTEMS_NO_PRIORITY,
&rtems_libio_semaphore
);
if ( rc != RTEMS_SUCCESSFUL ) {
_Internal_error( INTERNAL_ERROR_LIBIO_SEM_CREATE_FAILED );
}
}
RTEMS_SYSINIT_ITEM(
rtems_libio_init,
RTEMS_SYSINIT_LIBIO,
RTEMS_SYSINIT_ORDER_MIDDLE
);
RTEMS_SYSINIT_ITEM(
rtems_libio_post_driver,
RTEMS_SYSINIT_STD_FILE_DESCRIPTORS,
RTEMS_SYSINIT_ORDER_MIDDLE
);
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