forked from Imagelibrary/rtems
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @brief RTEMS LibIO Initialization
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* @ingroup LibIO
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*/
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/*
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* COPYRIGHT (c) 1989-2010.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/libio_.h>
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#include <pthread.h>
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#include <rtems/sysinit.h>
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#include <rtems/score/apimutex.h>
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/*
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* File descriptor Table Information
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*/
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static API_Mutex_Control rtems_libio_mutex = API_MUTEX_INITIALIZER( "_Libio" );
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void rtems_libio_lock( void )
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{
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_API_Mutex_Lock( &rtems_libio_mutex );
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}
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void rtems_libio_unlock( void )
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{
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_API_Mutex_Unlock( &rtems_libio_mutex );
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}
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void *rtems_libio_iop_free_head;
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void **rtems_libio_iop_free_tail = &rtems_libio_iop_free_head;
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static void rtems_libio_init( void )
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{
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uint32_t i;
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rtems_libio_t *iop;
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if (rtems_libio_number_iops > 0)
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{
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iop = rtems_libio_iop_free_head = &rtems_libio_iops[0];
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for (i = 0 ; (i + 1) < rtems_libio_number_iops ; i++, iop++)
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iop->data1 = iop + 1;
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iop->data1 = NULL;
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rtems_libio_iop_free_tail = &iop->data1;
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}
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}
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RTEMS_SYSINIT_ITEM(
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rtems_libio_init,
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RTEMS_SYSINIT_LIBIO,
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RTEMS_SYSINIT_ORDER_MIDDLE
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);
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