62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
// include/HPtime.hh
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// This file is part of libpbe; see http://svn.chezphil.org/libpbe/
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// (C) 2007-2008 Philip Endecott
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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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// 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 Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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// High-precision time.
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// Convertible to/from a double, representing the time in seconds since the epoch.
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// Resolution is whatever gettimeofday provides, which is at best microseconds.
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#ifndef pbe_HPtime_hh
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#define pbe_HPtime_hh
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#include <sys/time.h>
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#include <time.h>
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namespace pbe {
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class HPtime {
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private:
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double dt;
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public:
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HPtime(): dt(0) {}
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HPtime(const HPtime& t): dt(t.dt) {}
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HPtime(double t): dt(t) {}
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operator double() const { return dt; }
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static HPtime now() {
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struct timeval tv;
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gettimeofday(&tv,NULL);
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return HPtime(tv.tv_sec + tv.tv_usec/1e6);
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}
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};
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};
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#endif
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