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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2018, 2019 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.
*/
/*
* This file must be compatible to general purpose POSIX system, e.g. Linux,
* FreeBSD. It may be used for utility programs.
*/
#ifndef _RTEMS_RECORDCLIENT_H
#define _RTEMS_RECORDCLIENT_H
#include "recorddata.h"
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @addtogroup RTEMSRecord
*
* @{
*/
#define RTEMS_RECORD_CLIENT_MAXIMUM_CPU_COUNT 32
typedef enum {
RTEMS_RECORD_CLIENT_SUCCESS,
RTEMS_RECORD_CLIENT_ERROR_INVALID_MAGIC,
RTEMS_RECORD_CLIENT_ERROR_UNKNOWN_FORMAT,
RTEMS_RECORD_CLIENT_ERROR_UNSUPPORTED_VERSION,
RTEMS_RECORD_CLIENT_ERROR_UNSUPPORTED_CPU
} rtems_record_client_status;
typedef rtems_record_client_status ( *rtems_record_client_handler )(
uint32_t seconds,
uint32_t nanoseconds,
uint32_t cpu,
rtems_record_event event,
uint64_t data,
void *arg
);
typedef struct {
struct {
uint64_t bt;
uint32_t time_at_bt;
uint32_t time_last;
uint32_t time_accumulated;
} uptime;
uint32_t tail[ 2 ];
uint32_t head[ 2 ];
size_t index;
} rtems_record_client_per_cpu;
typedef struct rtems_record_client_context {
uint64_t to_bt_scaler;
rtems_record_client_per_cpu per_cpu[ RTEMS_RECORD_CLIENT_MAXIMUM_CPU_COUNT ];
uint64_t data;
uint32_t cpu;
uint32_t event;
uint32_t count;
union {
rtems_record_item_32 format_32;
rtems_record_item_64 format_64;
} item;
size_t todo;
void *pos;
rtems_record_client_status ( *consume )(
struct rtems_record_client_context *,
const void *,
size_t
);
rtems_record_client_handler handler;
void *handler_arg;
uint32_t header[ 2 ];
} rtems_record_client_context;
/**
* @brief Initializes a record client.
*
* The record client consumes a record item stream produces by the record
* server.
*
* @param ctx The record client context to initialize.
* @param handler The handler is invoked for each received record item.
* @param arg The handler argument.
*/
void rtems_record_client_init(
rtems_record_client_context *ctx,
rtems_record_client_handler handler,
void *arg
);
/**
* @brief Runs the record client to consume new stream data.
*
* @param ctx The record client context.
* @param buf The buffer with new stream data.
* @param n The size of the buffer.
*/
rtems_record_client_status rtems_record_client_run(
rtems_record_client_context *ctx,
const void *buf,
size_t n
);
/** @} */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _RTEMS_RECORDCLIENT_H */
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