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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @brief RTEMS LibIO Initialization
* @ingroup LibIO
*/
/*
* COPYRIGHT (c) 1989-2010.
* 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 <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;
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;
}
}
RTEMS_SYSINIT_ITEM(
rtems_libio_init,
RTEMS_SYSINIT_LIBIO,
RTEMS_SYSINIT_ORDER_MIDDLE
);
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