bool dimOutHandler(void)
{
const auto from = toTicks(Light::dimIn + Light::lightOn);
const auto len = toTicks(Light::dimOut);
light_.fill( uint8_t{255}-curTickToFill(from, len) );
return false;
}
bool dimInHandler(void)
{
const auto from = toTicks(0);
const auto len = toTicks(Light::dimIn);
light_.fill( curTickToFill(from, len) );
return false;
}
/** @brief process next cycle.
* @return true if tisk was the last tick of the cycle, false otherwise.
*/
bool nextTick(void)
{
// pre-condition check
if( not isStarted() )
return false;
// count ticks
tick();
// cycle: dim-in, lights on, dim-out
if( tick_ < toTicks(Light::dimIn) )
return dimInHandler();
if( tick_ < toTicks(Light::dimIn + Light::lightOn) )
return lightOnHandler();
if( tick_ < toTicks(Light::dimIn + Light::lightOn + Light::dimOut) )
return dimOutHandler();
// end of cycle
return stop();
}
int64_t Util::currentTimeTicks(int64_t ticksPerSec) {
int64_t result;
struct timeval now;
int ret = THRIFT_GETTIMEOFDAY(&now, NULL);
assert(ret == 0);
THRIFT_UNUSED_VARIABLE(ret); // squelching "unused variable" warning
toTicks(result, now, ticksPerSec);
return result;
}
const int64_t Util::currentTimeTicks(int64_t ticksPerSec) {
int64_t result;
#if defined(HAVE_CLOCK_GETTIME)
struct timespec now;
int ret = clock_gettime(CLOCK_REALTIME, &now);
assert(ret == 0);
toTicks(result, now, ticksPerSec);
#elif defined(HAVE_GETTIMEOFDAY)
struct timeval now;
int ret = gettimeofday(&now, nullptr);
assert(ret == 0);
toTicks(result, now, ticksPerSec);
#else
#error "No high-precision clock is available."
#endif // defined(HAVE_CLOCK_GETTIME)
return result;
}
int64_t Util::currentTimeTicks(int64_t ticksPerSec) {
int64_t result;
#if defined(HAVE_CLOCK_GETTIME)
struct timespec now;
int ret = clock_gettime(CLOCK_REALTIME, &now);
assert(ret == 0);
ret = ret; //squelching "unused variable" warning
toTicks(result, now, ticksPerSec);
#elif defined(HAVE_GETTIMEOFDAY)
struct timeval now;
int ret = gettimeofday(&now, NULL);
assert(ret == 0);
toTicks(result, now, ticksPerSec);
#else
//#error "No high-precision clock is available."
#endif // defined(HAVE_CLOCK_GETTIME)
return result;
}
const int64_t Util::monotonicTimeTicks(int64_t ticksPerSec) {
#if defined(HAVE_CLOCK_GETTIME)
static bool useRealtime;
if (useRealtime) {
return currentTimeTicks(ticksPerSec);
}
struct timespec now;
int ret = clock_gettime(CLOCK_MONOTONIC, &now);
if (ret != 0) {
// CLOCK_MONOTONIC is probably not supported on this system
assert(errno == EINVAL);
useRealtime = true;
return currentTimeTicks(ticksPerSec);
}
int64_t result;
toTicks(result, now, ticksPerSec);
return result;
#else
return currentTimeTicks(ticksPerSec);
#endif // defined(HAVE_CLOCK_GETTIME)
}