From: Øyvind Harboe Date: Tue, 15 Dec 2009 13:57:38 +0000 (+0100) Subject: ecos: crisper implementation of timeval_ms() X-Git-Tag: v0.4.0-rc1~32 X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=commitdiff_plain;h=c8b8a34bb5e98660c4ce3683fb64af31b494d55c ecos: crisper implementation of timeval_ms() A crisper/faster implementation under eCos that makes profiling a tad easier. Signed-off-by: Øyvind Harboe --- diff --git a/src/helper/Makefile.am b/src/helper/Makefile.am index 244ada7cd8..3ec4f31a06 100644 --- a/src/helper/Makefile.am +++ b/src/helper/Makefile.am @@ -7,9 +7,9 @@ METASOURCES = AUTO noinst_LTLIBRARIES = libhelper.la if ECOSBOARD -CONFIGFILES = +CONFIGFILES = time_support_ecos.c else -CONFIGFILES = options.c jim.c jim-eventloop.c +CONFIGFILES = options.c jim.c jim-eventloop.c time_support_common.c endif diff --git a/src/helper/time_support.c b/src/helper/time_support.c index 693528fe19..19343157c9 100644 --- a/src/helper/time_support.c +++ b/src/helper/time_support.c @@ -29,7 +29,6 @@ #include "time_support.h" - /* calculate difference between two struct timeval values */ int timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y) { @@ -73,16 +72,6 @@ int timeval_add_time(struct timeval *result, long sec, long usec) return 0; } -int64_t timeval_ms() -{ - struct timeval now; - int retval = gettimeofday(&now, NULL); - if (retval < 0) - return retval; - return (int64_t)now.tv_sec * 1000 + now.tv_usec / 1000; -} - - int duration_start(struct duration *duration) { return gettimeofday(&duration->start, NULL); diff --git a/src/helper/time_support_common.c b/src/helper/time_support_common.c new file mode 100644 index 0000000000..1ad3676c88 --- /dev/null +++ b/src/helper/time_support_common.c @@ -0,0 +1,42 @@ +/*************************************************************************** + * Copyright (C) 2006 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * Copyright (C) 2007,2008 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * Copyright (C) 2008 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "time_support.h" + +/* simple and low overhead fetching of ms counter. Use only + * the difference between ms counters returned from this fn. + */ +int64_t timeval_ms() +{ + struct timeval now; + int retval = gettimeofday(&now, NULL); + if (retval < 0) + return retval; + return (int64_t)now.tv_sec * 1000 + now.tv_usec / 1000; +} diff --git a/src/helper/time_support_ecos.c b/src/helper/time_support_ecos.c new file mode 100644 index 0000000000..b0911fce66 --- /dev/null +++ b/src/helper/time_support_ecos.c @@ -0,0 +1,43 @@ +/*************************************************************************** + * Copyright (C) 2006 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * Copyright (C) 2007,2008 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * Copyright (C) 2008 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "time_support.h" + +#include + +int64_t timeval_ms() +{ + /* Faster/less noisy implementation of getting ms when + * profiling + */ + static const int ms_per_tick = + (CYGNUM_HAL_RTC_NUMERATOR / CYGNUM_HAL_RTC_DENOMINATOR) / 1000000; + cyg_tick_count_t cur_time = cyg_current_time(); + return ((int)cur_time) * ms_per_tick; +}