# perf.h

    00001 /*
    00002  * Copyright (c) 2001, Swedish Institute of Computer Science.
    00003  * All rights reserved.
    00004  *
    00005  * Redistribution and use in source and binary forms, with or without
    00006  * modification, are permitted provided that the following conditions
    00007  * are met:
    00008  * 1. Redistributions of source code must retain the above copyright
    00009  *    notice, this list of conditions and the following disclaimer.
    00010  * 2. Redistributions in binary form must reproduce the above copyright
    00011  *    notice, this list of conditions and the following disclaimer in the
    00012  *    documentation and/or other materials provided with the distribution.
    00013  * 3. Neither the name of the Institute nor the names of its contributors
    00014  *    may be used to endorse or promote products derived from this software
    00015  *    without specific prior written permission.
    00016  *
    00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
    00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
    00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    00027  * SUCH DAMAGE.
    00028  *
    00029  * This file is part of the lwIP TCP/IP stack.
    00030  *
    00031  * Author: Adam Dunkels <adam@sics.se>
    00032  *
    00033  * $Id$
    00034  */
    00035 #ifndef __ARCH_PERF_H__
    00036 #define __ARCH_PERF_H__
    00037
    00038 #include <ubixos/times.h>
    00039
    00040 #ifdef PERF
    00041 #define PERF_START  { \
    00042                          unsigned long __c1l, __c1h, __c2l, __c2h; \
    00043                          __asm__(".byte 0x0f, 0x31" : "=a" (__c1l), "=d" (__c1h))
    00044 #define PERF_STOP(x)   __asm__(".byte 0x0f, 0x31" : "=a" (__c2l), "=d" (__c2h)); \
    00045                        perf_print(__c1l, __c1h, __c2l, __c2h, x);}
    00046
    00047 /*#define PERF_START do { \
    00048                      struct tms __perf_start, __perf_end; \
    00049                      times(&__perf_start)
    00050 #define PERF_STOP(x) times(&__perf_end); \
    00051                      perf_print_times(&__perf_start, &__perf_end, x);\
    00052                      } while(0)*/
    00053 #else /* PERF */
    00054 #define PERF_START    /* null definition */
    00055 #define PERF_STOP(x)  /* null definition */
    00056 #endif /* PERF */
    00057
    00058 void perf_print(unsigned long c1l, unsigned long c1h,
    00059                 unsigned long c2l, unsigned long c2h,
    00060                 char *key);
    00061
    00062 void perf_print_times(struct tms *start, struct tms *end, char *key);
    00063
    00064 void perf_init(char *fname);
    00065
    00066 #endif /* __ARCH_PERF_H__ */