-/*******************************************************************************
-
- 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>
#include <limits>
-#include <stdexcept>
+
+#include <SDL/SDL.h>
#include "Log.hh"
#include "Timer.hh"
#include "config.h"
#endif
-#include <SDL/SDL.h>
-
namespace Mf {
-Scalar Timer::nextFire_ = std::numeric_limits<Scalar>::max();
-std::map<unsigned,Timer&> Timer::timers_;
+Scalar Timer::gNextFire = std::numeric_limits<Scalar>::max();
+std::map<unsigned,Timer*> Timer::gTimers;
unsigned Timer::getNewID()
{
mFunction = function;
- if (mode == ABSOLUTEE)
+ if (mode == ACTUAL)
{
mAbsolute = seconds;
}
}
mId = getNewID();
- timers_.insert(std::pair<unsigned,Timer&>(mId, *this));
+ gTimers.insert(std::pair<unsigned,Timer*>(mId, this));
- if (mAbsolute < nextFire_) nextFire_ = mAbsolute;
+ if (mAbsolute < gNextFire) gNextFire = mAbsolute;
}
}
{
if (mMode != INVALID)
{
- timers_.erase(mId);
+ gTimers.erase(mId);
mMode = INVALID;
- if (isEqual(mAbsolute, nextFire_)) nextFire_ = findNextFire();
+ if (isEqual(mAbsolute, gNextFire)) gNextFire = findNextFire();
}
}
if (isEqual(mAbsolute, t, 1.0)) mAbsolute += mInterval;
else mAbsolute = mInterval + t;
- if (isEqual(absolute, nextFire_)) nextFire_ = findNextFire();
+ if (isEqual(absolute, gNextFire)) gNextFire = findNextFire();
}
else
{
Scalar Timer::findNextFire()
{
- std::map<unsigned,Timer&>::iterator it;
+ std::map<unsigned,Timer*>::iterator it;
Scalar nextFire = std::numeric_limits<Scalar>::max();
- for (it = timers_.begin(); it != timers_.end(); ++it)
+ 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 (nextFire_ > t) return;
+ if (gNextFire > t) return;
- for (it = timers_.begin(); it != timers_.end(); ++it)
+ 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 timer 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_()
{
{
struct timespec ts;
- if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0)
- {
- throw std::runtime_error("cannot access monotonic clock");
- }
+ 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: *************************************************/
-
projects / chaz / yoink / blobdiff