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5873a060ca
* these are dependencies for gcc 4 Graphite engine build. * CLooG 0.18.0 includes ISL 0.11.1 which is the backend that the build script enables. * PPL is needed by GCC build even if it isn't the chosen backend.
104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
/* Definitions of simple functions for printing timings.
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Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
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Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)
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This file is part of the Parma Polyhedra Library (PPL).
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The PPL is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The PPL is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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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 Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
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For the most up-to-date information see the Parma Polyhedra Library
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site: http://www.cs.unipr.it/ppl/ . */
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#include <ppl-config.h>
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#include "timings.hh"
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#include <cassert>
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#include <ctime>
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#include <iostream>
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#include <iomanip>
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#include <cstring>
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#include <cerrno>
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#include <cstdlib>
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#ifdef PPL_HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#ifdef PPL_HAVE_SYS_RESOURCE_H
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// This should be included after <time.h> and <sys/time.h> so as to make
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// sure we have the definitions for, e.g., `ru_utime'.
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# include <sys/resource.h>
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#endif
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using namespace std;
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#ifdef PPL_HAVE_TIMEVAL
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// To save the time when start_clock is called.
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static struct timeval saved_ru_utime;
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#endif
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void
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start_clock() {
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#if defined(PPL_HAVE_DECL_GETRUSAGE) && defined(PPL_HAVE_TIMEVAL)
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struct rusage rsg;
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if (getrusage(RUSAGE_SELF, &rsg) != 0) {
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cerr << "getrusage failed: " << strerror(errno) << endl;
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exit(1);
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}
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else
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saved_ru_utime = rsg.ru_utime;
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#endif
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}
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void
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print_clock(ostream& s) {
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#if defined(PPL_HAVE_DECL_GETRUSAGE) && defined(PPL_HAVE_TIMEVAL)
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struct rusage rsg;
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if (getrusage(RUSAGE_SELF, &rsg) != 0) {
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cerr << "getrusage failed: " << strerror(errno) << endl;
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exit(1);
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}
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else {
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time_t current_secs = rsg.ru_utime.tv_sec;
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time_t current_usecs = rsg.ru_utime.tv_usec;
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time_t saved_secs = saved_ru_utime.tv_sec;
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time_t saved_usecs = saved_ru_utime.tv_usec;
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time_t secs;
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time_t hsecs;
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secs = current_secs - saved_secs;
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if (current_usecs < saved_usecs) {
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hsecs = (((1000000 + current_usecs) - saved_usecs) + 5000) / 10000;
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if (hsecs < 100)
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--secs;
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else
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hsecs = 0;
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}
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else {
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hsecs = ((current_usecs - saved_usecs) + 5000) / 10000;
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if (hsecs == 100) {
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++secs;
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hsecs = 0;
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}
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}
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assert(hsecs >= 0 && hsecs < 100 && secs >= 0);
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int fill_char = s.fill();
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s << secs << "." << setfill('0') << setw(2) << hsecs;
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s.fill(fill_char);
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}
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#else
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s << "(no clock available)";
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#endif
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}
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