ecos: crisper implementation of timeval_ms()
A crisper/faster implementation under eCos that makes profiling a tad easier. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
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@ -7,9 +7,9 @@ METASOURCES = AUTO
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noinst_LTLIBRARIES = libhelper.la
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if ECOSBOARD
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CONFIGFILES =
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CONFIGFILES = time_support_ecos.c
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else
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CONFIGFILES = options.c jim.c jim-eventloop.c
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CONFIGFILES = options.c jim.c jim-eventloop.c time_support_common.c
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endif
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@ -29,7 +29,6 @@
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#include "time_support.h"
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/* calculate difference between two struct timeval values */
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int timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y)
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{
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@ -73,16 +72,6 @@ int timeval_add_time(struct timeval *result, long sec, long usec)
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return 0;
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}
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int64_t timeval_ms()
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{
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struct timeval now;
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int retval = gettimeofday(&now, NULL);
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if (retval < 0)
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return retval;
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return (int64_t)now.tv_sec * 1000 + now.tv_usec / 1000;
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}
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int duration_start(struct duration *duration)
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{
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return gettimeofday(&duration->start, NULL);
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@ -0,0 +1,42 @@
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/***************************************************************************
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* Copyright (C) 2006 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* Copyright (C) 2007,2008 Øyvind Harboe *
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* oyvind.harboe@zylin.com *
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* *
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* Copyright (C) 2008 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "time_support.h"
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/* simple and low overhead fetching of ms counter. Use only
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* the difference between ms counters returned from this fn.
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*/
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int64_t timeval_ms()
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{
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struct timeval now;
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int retval = gettimeofday(&now, NULL);
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if (retval < 0)
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return retval;
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return (int64_t)now.tv_sec * 1000 + now.tv_usec / 1000;
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}
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@ -0,0 +1,43 @@
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/***************************************************************************
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* Copyright (C) 2006 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* Copyright (C) 2007,2008 Øyvind Harboe *
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* oyvind.harboe@zylin.com *
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* *
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* Copyright (C) 2008 by Spencer Oliver *
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* spen@spen-soft.co.uk *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "time_support.h"
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#include <cyg/kernel/kapi.h>
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int64_t timeval_ms()
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{
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/* Faster/less noisy implementation of getting ms when
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* profiling
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*/
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static const int ms_per_tick =
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(CYGNUM_HAL_RTC_NUMERATOR / CYGNUM_HAL_RTC_DENOMINATOR) / 1000000;
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cyg_tick_count_t cur_time = cyg_current_time();
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return ((int)cur_time) * ms_per_tick;
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}
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