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+#!/usr/bin/perl -w
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+
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+## Author: Alois Mahdal at zxcvb cz
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+# just measuring one second.
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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 3 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, see <http://www.gnu.org/licenses/>.
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+
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+use warnings;
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+
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+use Time::HiRes qw|time|;
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+use POSIX qw|modf|;
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+
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+sub stamp {
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+ my $time = shift;
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+ my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = (localtime($time));
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+ return sprintf "%04i-%02i-%02i %02i:%02i:%02i.%05i",
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+ $year + 1900, $mon + 1, $mday,
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+ $hour, $min, $sec, ( modf $time)[0] * 100000;
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+}
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+
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+
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+while (1) {
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+ print stamp Time::HiRes::time();
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+ print "\n";
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+ sleep 1;
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+}
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