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timer: add a stopwatch for timing a simple operation

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* src/misc/timer.hh (stopwatch): New class, implemented on top
of C++11's std::chrono::high_resolution_clock.
* src/bin/dstar2tgba.cc, src/bin/ltl2tgba.cc, src/bin/ltlcross.cc:
Use it in lieu of gethrxtime(), so we do not need to distribute
gethrxtime anymore.
This commit is contained in:
Alexandre Duret-Lutz 2014-10-26 13:44:47 +01:00
parent 8d947a8782
commit a4f951facc
4 changed files with 41 additions and 17 deletions
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9
src/bin/ltl2tgba.cc
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@ -24,7 +24,6 @@
#include <argp.h>
#include "error.h"
#include "gethrxtime.h"
#include "common_setup.hh"
#include "common_r.hh"
@ -44,6 +43,7 @@
#include "tgbaalgos/translate.hh"
#include "tgba/bddprint.hh"
#include "misc/optionmap.hh"
#include "misc/timer.hh"
const char argp_program_doc[] ="\
Translate linear-time formulas (LTL/PSL) into Büchi automata.\n\n\
@ -223,11 +223,10 @@ namespace
process_formula(const spot::ltl::formula* f,
const char* filename = 0, int linenum = 0)
{
const xtime_t before = gethrxtime();
spot::stopwatch sw;
sw.start();
auto aut = trans.run(&f);
const xtime_t after = gethrxtime();
const double prec = XTIME_PRECISION;
const double translation_time = (after - before) / prec;
const double translation_time = sw.stop();
// This should not happen, because the parser we use can only
// read PSL/LTL formula, but since our ltl::formula* type can