forked from Imagelibrary/rtems
132 lines
2.9 KiB
C
132 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2013, 2016 embedded brains GmbH. All rights reserved.
|
|
*
|
|
* embedded brains GmbH
|
|
* Dornierstr. 4
|
|
* 82178 Puchheim
|
|
* Germany
|
|
* <rtems@embedded-brains.de>
|
|
*
|
|
* 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/chain.h>
|
|
#include <rtems/rtems/intr.h>
|
|
|
|
RTEMS_INTERRUPT_LOCK_DEFINE( static, chain_lock, "Chains" )
|
|
|
|
static void chain_acquire( rtems_interrupt_lock_context *lock_context )
|
|
{
|
|
rtems_interrupt_lock_acquire( &chain_lock, lock_context );
|
|
}
|
|
|
|
static void chain_release( rtems_interrupt_lock_context *lock_context )
|
|
{
|
|
rtems_interrupt_lock_release( &chain_lock, lock_context );
|
|
}
|
|
|
|
void rtems_chain_extract( rtems_chain_node *node )
|
|
{
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
_Chain_Extract_unprotected( node );
|
|
chain_release( &lock_context );
|
|
}
|
|
|
|
rtems_chain_node *rtems_chain_get( rtems_chain_control *chain )
|
|
{
|
|
rtems_chain_node *node;
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
node = _Chain_Get_unprotected( chain );
|
|
chain_release( &lock_context );
|
|
|
|
return node;
|
|
}
|
|
|
|
void rtems_chain_insert( rtems_chain_node *after_node, rtems_chain_node *node )
|
|
{
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
_Chain_Insert_unprotected( after_node, node );
|
|
chain_release( &lock_context );
|
|
}
|
|
|
|
void rtems_chain_append(
|
|
rtems_chain_control *chain,
|
|
rtems_chain_node *node
|
|
)
|
|
{
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
_Chain_Append_unprotected( chain, node );
|
|
chain_release( &lock_context );
|
|
}
|
|
|
|
void rtems_chain_prepend(
|
|
rtems_chain_control *chain,
|
|
rtems_chain_node *node
|
|
)
|
|
{
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
_Chain_Prepend_unprotected( chain, node );
|
|
chain_release( &lock_context );
|
|
}
|
|
|
|
bool rtems_chain_append_with_empty_check(
|
|
rtems_chain_control *chain,
|
|
rtems_chain_node *node
|
|
)
|
|
{
|
|
bool was_empty;
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
was_empty = _Chain_Append_with_empty_check_unprotected( chain, node );
|
|
chain_release( &lock_context );
|
|
|
|
return was_empty;
|
|
}
|
|
|
|
bool rtems_chain_prepend_with_empty_check(
|
|
rtems_chain_control *chain,
|
|
rtems_chain_node *node
|
|
)
|
|
{
|
|
bool was_empty;
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
was_empty = _Chain_Prepend_with_empty_check_unprotected( chain, node );
|
|
chain_release( &lock_context );
|
|
|
|
return was_empty;
|
|
}
|
|
|
|
bool rtems_chain_get_with_empty_check(
|
|
rtems_chain_control *chain,
|
|
rtems_chain_node **node
|
|
)
|
|
{
|
|
bool is_empty_now;
|
|
rtems_interrupt_lock_context lock_context;
|
|
|
|
chain_acquire( &lock_context );
|
|
is_empty_now = _Chain_Get_with_empty_check_unprotected( chain, node );
|
|
chain_release( &lock_context );
|
|
|
|
return is_empty_now;
|
|
}
|