src/lwip/standalone/arch/perf.h

/*
 *
 *    Copyright (c) 2020 Project CHIP Authors
 *    Copyright (c) 2014-2017 Nest Labs, Inc.
 *    Copyright (c) 2001-2003 Swedish Institute of Computer Science.
 *    All rights reserved.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

/*
 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
 * All rights reserved.
 *
 * 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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 is part of the lwIP TCP/IP stack.
 *
 * Author: Adam Dunkels <adam@sics.se>
 *
 */
#ifndef __ARCH_PERF_H__
#define __ARCH_PERF_H__

#include <sys/times.h>

#ifdef PERF
#define PERF_START                                                                                                                 \
    {                                                                                                                              \
        unsigned long __c1l, __c1h, __c2l, __c2h;                                                                                  \
        __asm__(".byte 0x0f, 0x31" : "=a"(__c1l), "=d"(__c1h))
#define PERF_STOP(x)                                                                                                               \
    __asm__(".byte 0x0f, 0x31" : "=a"(__c2l), "=d"(__c2h));                                                                        \
    perf_print(__c1l, __c1h, __c2l, __c2h, x);                                                                                     \
    }

/*#define PERF_START do { \
                     struct tms __perf_start, __perf_end; \
                     times(&__perf_start)
#define PERF_STOP(x) times(&__perf_end); \
                     perf_print_times(&__perf_start, &__perf_end, x);\
                     } while(0)*/
#else                /* PERF */
#define PERF_START   /* null definition */
#define PERF_STOP(x) /* null definition */
#endif               /* PERF */

void perf_print(unsigned long c1l, unsigned long c1h, unsigned long c2l, unsigned long c2h, char * key);

void perf_print_times(struct tms * start, struct tms * end, char * key);

void perf_init(char * fname);

#define sys_profile_interval_set_pbuf_highwatermark(x, y)
#define sys_profile_pbuf_allocate(pbuf)
#define sys_profile_pbuf_free(pbuf)
#define sys_profile_pbuf_transfer(x, y)

#endif /* __ARCH_PERF_H__ */