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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2018 embedded brains GmbH
*
* 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.
*/
#include <rtems/record.h>
#include <rtems/config.h>
#include <string.h>
rtems_record_context *rtems_record_prepare(
rtems_record_context *context,
unsigned int count
)
{
rtems_record_prepare_inline( context, count );
return context;
}
rtems_record_context *rtems_record_add(
rtems_record_context *context,
rtems_record_event event,
rtems_record_data data
)
{
rtems_record_add_inline( context, event, data );
return context;
}
void rtems_record_commit(
rtems_record_context *context,
rtems_record_event event,
rtems_record_data data
)
{
rtems_record_commit_inline( context, event, data );
}
void rtems_record_produce( rtems_record_event event, rtems_record_data data )
{
rtems_record_context context;
rtems_record_prepare_inline( &context, 1 );
rtems_record_commit_inline( &context, event, data );
}
void rtems_record_drain( rtems_record_visitor visitor, void *arg )
{
rtems_record_item item;
uint32_t cpu_max;
uint32_t cpu_index;
memset( &item, 0, sizeof( item ) );
item.event = RTEMS_RECORD_EVENT_PROCESSOR;
cpu_max = rtems_configuration_get_maximum_processors();
for ( cpu_index = 0; cpu_index < cpu_max; ++cpu_index ) {
Per_CPU_Control *cpu;
Record_Control *control;
unsigned int tail;
unsigned int head;
cpu = _Per_CPU_Get_by_index( cpu_index );
control = cpu->record;
item.data = cpu_index;
tail = _Record_Tail( control );
head = _Atomic_Load_uint( &control->head, ATOMIC_ORDER_ACQUIRE );
if ( tail == head ) {
continue;
}
( *visitor )( &item, 1, arg );
if ( tail < head ) {
( *visitor )( &control->Items[ tail ], head - tail, arg );
} else {
( *visitor )( &control->Items[ tail ], control->mask + 1 - tail, arg );
if ( head > 0 ) {
( *visitor )( &control->Items[ 0 ], head, arg );
}
}
_Atomic_Store_uint(
&control->tail,
head,
ATOMIC_ORDER_RELAXED
);
}
}
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