-/*******************************************************************************
-
- Copyright (c) 2009, Charles McGarvey
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-*******************************************************************************/
+/*] Copyright (c) 2009-2010, Charles McGarvey [**************************
+**] All rights reserved.
+*
+* vi:ts=4 sw=4 tw=75
+*
+* Distributable under the terms and conditions of the 2-clause BSD license;
+* see the file COPYING for a complete text of the license.
+*
+**************************************************************************/
#include <cerrno>
#include <ctime>
Scalar Timer::gNextFire = std::numeric_limits<Scalar>::max();
-std::map<unsigned,Timer&> Timer::gTimers;
+std::map<unsigned,Timer*> Timer::gTimers;
unsigned Timer::getNewID()
{
mFunction = function;
- if (mode == ABSOLUTEE)
+ if (mode == ACTUAL)
{
mAbsolute = seconds;
}
}
mId = getNewID();
- gTimers.insert(std::pair<unsigned,Timer&>(mId, *this));
+ gTimers.insert(std::pair<unsigned,Timer*>(mId, this));
if (mAbsolute < gNextFire) gNextFire = mAbsolute;
}
Scalar Timer::findNextFire()
{
- std::map<unsigned,Timer&>::iterator it;
+ std::map<unsigned,Timer*>::iterator it;
Scalar nextFire = std::numeric_limits<Scalar>::max();
for (it = gTimers.begin(); it != gTimers.end(); ++it)
{
- Scalar absolute = (*it).second.mAbsolute;
+ Scalar absolute = (*it).second->mAbsolute;
if (absolute < nextFire) nextFire = absolute;
}
}
+void Timer::fireIfExpired()
+{
+ fireIfExpired(getTicks());
+}
+
void Timer::fireIfExpired(Scalar t)
{
- std::map<unsigned,Timer&>::iterator it;
+ std::map<unsigned,Timer*>::iterator it;
if (gNextFire > t) return;
for (it = gTimers.begin(); it != gTimers.end(); ++it)
{
- Timer& timer = (*it).second;
- if (timer.isExpired()) timer.fire();
+ Timer* timer = (*it).second;
+ if (timer->isExpired()) timer->fire();
}
}
#if HAVE_CLOCK_GETTIME
-// Since the monotonic clock will provide us with the time since the computer
-// started, the number of seconds since that time could easily become so large
-// that it cannot be accurately stored in a float (even with as little two days
-// uptime), therefore we need to start from a more recent reference (when the
-// program starts). Of course this isn't much of an issue if scalar is a
-// double-precision number.
+// Since the monotonic clock will provide us with the time since the
+// computer started, the number of seconds since that time could easily
+// become so large that it cannot be accurately stored in a float (even
+// with as little two days uptime), therefore we need to start from a more
+// recent reference (when the program starts). Of course this isn't much
+// of an issue if scalar is a double-precision number.
static time_t setReference_()
{
int result = clock_gettime(CLOCK_MONOTONIC, &ts);
ASSERT(result == 0 && "cannot access clock");
- return Scalar(ts.tv_sec - reference) + Scalar(ts.tv_nsec) / 1000000000.0;
+ return Scalar(ts.tv_sec - reference) +
+ Scalar(ts.tv_nsec) / 1000000000.0;
}
-void Timer::sleep(Scalar seconds, bool absolute)
+void Timer::sleep(Scalar seconds, Mode mode)
{
struct timespec ts;
int ret;
- if (absolute) seconds -= getTicks();
+ if (mode == ACTUAL) seconds -= getTicks();
ts.tv_sec = time_t(seconds);
ts.tv_nsec = long((seconds - Scalar(ts.tv_sec)) * 1000000000.0);
#else // ! HAVE_CLOCK_GETTIME
-// If we don't have posix timers, we'll have to use a different timing method.
-// SDL only promises centisecond accuracy, but that's better than a kick in the
-// butt.
+// If we don't have posix timers, we'll have to use a different timing
+// method. SDL only promises centisecond accuracy, but that's better than
+// a kick in the pants.
Scalar Timer::getTicks()
{
return Scalar(ms / 1000) + Scalar(ms % 1000) / 1000.0;
}
-void Timer::sleep(Scalar seconds, bool absolute)
+void Timer::sleep(Scalar seconds, Mode mode)
{
- if (absolute) seconds -= getTicks();
+ if (mode == ACTUAL) seconds -= getTicks();
SDL_Delay(Uint32(cml::clamp(int(seconds * 1000.0), 0, 1000)));
}
} // namespace Mf
-/** vim: set ts=4 sw=4 tw=80: *************************************************/
-