#include <fcntl.h>
#include <unistd.h>
+#include <errno.h>
#include <lib/base/eerror.h>
+#include <lib/base/elock.h>
eSocketNotifier::eSocketNotifier(eMainloop *context, int fd, int requested, bool startnow): context(*context), fd(fd), state(0), requested(requested)
{
bActive = true;
bSingleShot = singleShot;
interval = msek;
- gettimeofday(&nextActivation, 0);
-// eDebug("this = %p\nnow sec = %d, usec = %d\nadd %d msec", this, nextActivation.tv_sec, nextActivation.tv_usec, msek);
+ gettimeofday(&nextActivation, 0);
+ nextActivation.tv_sec -= context.getTimerOffset();
nextActivation += (msek<0 ? 0 : msek);
+// eDebug("this = %p\nnow sec = %d, usec = %d\nadd %d msec", this, nextActivation.tv_sec, nextActivation.tv_usec, msek);
+// eDebug("next Activation sec = %d, usec = %d", nextActivation.tv_sec, nextActivation.tv_usec );
+ context.addTimer(this);
+}
+
+void eTimer::startLongTimer( int seconds )
+{
+ if (bActive)
+ stop();
+
+ bActive = bSingleShot = true;
+ interval = 0;
+ gettimeofday(&nextActivation, 0);
+ nextActivation.tv_sec -= context.getTimerOffset();
+// eDebug("this = %p\nnow sec = %d, usec = %d\nadd %d msec", this, nextActivation.tv_sec, nextActivation.tv_usec, msek);
+ if ( seconds > 0 )
+ nextActivation.tv_sec += seconds;
// eDebug("next Activation sec = %d, usec = %d", nextActivation.tv_sec, nextActivation.tv_usec );
context.addTimer(this);
}
nextActivation -= interval; // sub old interval
}
else
- bActive=true; // then activate Timer
+ bActive=true; // then activate Timer
interval = msek; // set new Interval
nextActivation += interval; // calc nextActivation
void eTimer::activate() // Internal Funktion... called from eApplication
{
- timeval now;
- gettimeofday(&now, 0);
-// eDebug("this = %p\nnow sec = %d, usec = %d\nnextActivation sec = %d, usec = %d", this, now.tv_sec, now.tv_usec, nextActivation.tv_sec, nextActivation.tv_usec );
-// eDebug("Timer emitted");
context.removeTimer(this);
if (!bSingleShot)
/*emit*/ timeout();
}
+inline void eTimer::recalc( int offset )
+{
+ nextActivation.tv_sec += offset;
+}
+
// mainloop
+ePtrList<eMainloop> eMainloop::existing_loops;
+
+void eMainloop::setTimerOffset( int difference )
+{
+ singleLock s(recalcLock);
+ if (!TimerList)
+ timer_offset=0;
+ else
+ {
+ if ( timer_offset )
+ eDebug("time_offset %d avail.. add new offset %d than new is %d",
+ timer_offset, difference, timer_offset+difference);
+ timer_offset+=difference;
+ }
+}
void eMainloop::addSocketNotifier(eSocketNotifier *sn)
{
void eMainloop::processOneEvent()
{
-// process pending timers...
+ /* notes:
+ - we should use epoll(4)
+ - timer are checked twice. there was a strong reason for it, but i can't remember. (FIXME)
+ - for each time, we gettimeofday() and check wether the timer should fire.
+ we should do this all better - we know how long the poll last, so we know which
+ timers should fire. Problem is that a timer handler could have required so
+ much time that another timer fired.
+
+ A probably structure could look
+
+ while (1)
+ {
+ time = gettimeofday()
+ timeout = calculate_pending_timers(time);
+
+ doPoll(timeout or infinite);
+
+ if (poll_had_results)
+ handle_poll_handler();
+ else
+ fire_timers(time + timeout)
+ }
+
+ the gettimeofday() call is required because fire_timers could last more
+ than nothing.
+
+ when poll did no timeout, we don't handle timers, as this will be done
+ in the next iteration (without adding overhead - we had to get the new
+ time anyway
+ */
+
+ // first, process pending timers...
long usec=0;
+ if ( TimerList )
+ doRecalcTimers();
while (TimerList && (usec = timeout_usec( TimerList.begin()->getNextActivation() ) ) <= 0 )
+ {
TimerList.begin()->activate();
+ doRecalcTimers();
+ }
int fdAnz = notifiers.size();
- pollfd* pfd = new pollfd[fdAnz]; // make new pollfd array
+ pollfd pfd[fdAnz];
// fill pfd array
std::map<int,eSocketNotifier*>::iterator it(notifiers.begin());
pfd[i].events = it->second->getRequested();
}
- int ret=poll(pfd, fdAnz, TimerList ? usec / 1000 : -1); // milli .. not micro seks
+ // to the poll. When there are no timers, we have an infinite timeout
+ int ret=poll(pfd, fdAnz, TimerList ? usec / 1000 : -1); // convert to ms
if (ret>0)
{
-// eDebug("bin aussem poll raus und da war was");
+ // eDebug("bin aussem poll raus und da war was");
for (int i=0; i < fdAnz ; i++)
{
if( notifiers.find(pfd[i].fd) == notifiers.end())
if ( pfd[i].revents & req )
{
notifiers[pfd[i].fd]->activate(pfd[i].revents);
-
if (!--ret)
break;
- } else if (pfd[i].revents & (POLLERR|POLLHUP|POLLNVAL))
+ }
+ else if (pfd[i].revents & (POLLERR|POLLHUP|POLLNVAL))
eDebug("poll: unhandled POLLERR/HUP/NVAL for fd %d(%d)", pfd[i].fd,pfd[i].revents);
}
}
else if (ret<0)
- eDebug("poll made error");
-
- // check Timers...
- while ( TimerList && timeout_usec( TimerList.begin()->getNextActivation() ) <= 0 )
- TimerList.begin()->activate();
-
- delete [] pfd;
+ {
+ /* when we got a signal, we get EINTR. we do not care,
+ because we check current time in timers anyway. */
+ if (errno != EINTR)
+ eDebug("poll made error");
+ }
}
-
int eMainloop::exec()
{
if (!loop_level)
{
app_quit_now = false;
+ app_exit_loop = false;
enter_loop();
}
return retval;
void eMainloop::enter_loop()
{
loop_level++;
-
// Status der vorhandenen Loop merken
bool old_exit_loop = app_exit_loop;
-
+
app_exit_loop = false;
while (!app_exit_loop && !app_quit_now)
- {
processOneEvent();
- }
// wiederherstellen der vorherigen app_exit_loop
app_exit_loop = old_exit_loop;
- loop_level--;
+ --loop_level;
if (!loop_level)
{
- // do something here on exit the last loop
+ // do something here on exit the last loop
}
}
void eMainloop::exit_loop() // call this to leave the current loop
{
- app_exit_loop = true;
+ app_exit_loop = true;
}
void eMainloop::quit( int ret ) // call this to leave all loops
app_quit_now = true;
}
+inline void eMainloop::doRecalcTimers()
+{
+ singleLock s(recalcLock);
+ if ( timer_offset )
+ {
+ for (ePtrList<eTimer>::iterator it(TimerList); it != TimerList.end(); ++it )
+ it->recalc( timer_offset );
+ timer_offset=0;
+ }
+}
+
eApplication* eApp = 0;
git.cweiske.de / enigma2.git / blobdiff