mirror of https://github.com/Icinga/icinga2.git
114 lines
2.0 KiB
C++
114 lines
2.0 KiB
C++
#include <functional>
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#include <algorithm>
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#include "i2-base.h"
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using namespace icinga;
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using std::list;
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using std::bind2nd;
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using std::equal_to;
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static time_t g_NextCall;
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list<Timer::WeakRefType> Timer::Timers;
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Timer::Timer(void)
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{
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m_Interval = 0;
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}
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time_t Timer::GetNextCall(void)
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{
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if (g_NextCall < time(NULL))
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Timer::RescheduleTimers();
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return g_NextCall;
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}
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void Timer::RescheduleTimers(void)
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{
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/* Make sure we wake up at least once every 30 seconds */
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g_NextCall = time(NULL) + 30;
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for (list<Timer::WeakRefType>::iterator i = Timers.begin(); i != Timers.end(); i++) {
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Timer::RefType timer = i->lock();
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if (timer == NULL)
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continue;
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if (timer->m_Next < g_NextCall)
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g_NextCall = timer->m_Next;
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}
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}
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void Timer::CallExpiredTimers(void)
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{
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time_t now;
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time(&now);
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for (list<Timer::WeakRefType>::iterator i = Timers.begin(); i != Timers.end(); ) {
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Timer::RefType timer = Timer::RefType(*i);
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i++;
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if (timer == NULL)
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continue;
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if (timer->m_Next <= now) {
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timer->Call();
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timer->Reschedule(now + timer->GetInterval());
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}
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}
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}
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void Timer::StopAllTimers(void)
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{
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for (list<Timer::WeakRefType>::iterator i = Timers.begin(); i != Timers.end(); ) {
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Timer::RefType timer = Timer::RefType(*i);
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i++;
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if (timer == NULL)
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continue;
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timer->Stop();
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}
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}
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/* Note: the timer delegate must not call Disable() on any other timers than
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* the timer that originally invoked the delegate */
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void Timer::Call(void)
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{
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TimerEventArgs::RefType ea = new_object<TimerEventArgs>();
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ea->Source = shared_from_this();
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ea->UserArgs = m_UserArgs;
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OnTimerExpired(ea);
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}
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void Timer::SetInterval(unsigned int interval)
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{
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m_Interval = interval;
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}
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unsigned int Timer::GetInterval(void) const
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{
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return m_Interval;
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}
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void Timer::Start(void)
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{
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Stop();
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Timers.push_front(static_pointer_cast<Timer>(shared_from_this()));
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Reschedule(time(NULL) + m_Interval);
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}
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void Timer::Stop(void)
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{
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Timers.remove_if(weak_ptr_eq_raw<Timer>(this));
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}
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void Timer::Reschedule(time_t next)
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{
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m_Next = next;
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RescheduleTimers();
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}
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