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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>
#include <pthread.h>
#include <rtems/sysinit.h>
#include <rtems/score/apimutex.h>
/*
* File descriptor Table Information
*/
static API_Mutex_Control rtems_libio_mutex = API_MUTEX_INITIALIZER( "_Libio" );
void rtems_libio_lock( void )
{
_API_Mutex_Lock( &rtems_libio_mutex );
}
void rtems_libio_unlock( void )
{
_API_Mutex_Unlock( &rtems_libio_mutex );
}
void *rtems_libio_iop_free_head;
void **rtems_libio_iop_free_tail = &rtems_libio_iop_free_head;
static void rtems_libio_init( void )
{
uint32_t i;
rtems_libio_t *iop;
int eno;
if (rtems_libio_number_iops > 0)
{
iop = rtems_libio_iop_free_head = &rtems_libio_iops[0];
for (i = 0 ; (i + 1) < rtems_libio_number_iops ; i++, iop++)
iop->data1 = iop + 1;
iop->data1 = NULL;
rtems_libio_iop_free_tail = &iop->data1;
}
/*
* 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 );
}
}
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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