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Eli Zaretskii authored
Avoid overflow in w32 implementation of interval timers. When possible, for ITIMER_PROF count only times the main thread actually executes. src/w32proc.c <struct itimer_data>: 'expire' and 'reload' are now ULONGLONG types. Likewise for all the other data which was previously clock_t. (GetThreadTimes_Proc): New typedef. (w32_get_timer_time): New function, returns a suitable time value for the timer. (timer_loop): Enter critical section when accessing ULONGLONG values of the itimer_data struct, as these accesses are no longer atomic. Call 'w32_get_timer_time' instead of 'clock'. (init_timers): Initialize s_pfn_Get_Thread_Times. (start_timer_thread): Don't assign itimer->caller_thread here. (getitimer): Assign itimer->caller_thread here. (setitimer): Always call getitimer to get the value of ticks_now.
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