int16 RmvTime(uint32 tm)
{
D(bug("RmvTime %08lx\n", tm));
// Find descriptor
int i = find_desc(tm);
if (i < 0) {
D(bug("WARNING: RmvTime(%08lx): Descriptor not found\n", tm));
return 0;
}
// Task active?
if (ReadMacInt16(tm + qType) & 0x8000) {
// Yes, make task inactive and remove it from the Time Manager queue
WriteMacInt16(tm + qType, ReadMacInt16(tm + qType) & 0x7fff);
dequeue_tm(tm);
// Compute remaining time
tm_time_t remaining, current;
timer_current_time(current);
timer_sub_time(remaining, desc[i].wakeup, current);
WriteMacInt32(tm + tmCount, timer_host2mac_time(remaining));
} else
WriteMacInt32(tm + tmCount, 0);
D(bug(" tmCount %ld\n", ReadMacInt32(tm + tmCount)));
// Free descriptor
free_desc(i);
return 0;
}
int16 RmvTime(uint32 tm)
{
D(bug("RmvTime %08lx\n", tm));
// Find descriptor
TMDesc *desc = find_desc(tm);
if (!desc) {
printf("WARNING: RmvTime(%08lx): Descriptor not found\n", (long unsigned int)tm);
return 0;
}
// Task active?
#if PRECISE_TIMING_BEOS
while (acquire_sem(wakeup_time_sem) == B_INTERRUPTED) ;
suspend_thread(timer_thread);
#endif
#ifdef PRECISE_TIMING_MACH
semaphore_wait(wakeup_time_sem);
thread_suspend(timer_thread);
#endif
#if PRECISE_TIMING_POSIX
timer_thread_suspend();
pthread_mutex_lock(&wakeup_time_lock);
#endif
if (ReadMacInt16(tm + qType) & 0x8000) {
// Yes, make task inactive and remove it from the Time Manager queue
WriteMacInt16(tm + qType, ReadMacInt16(tm + qType) & 0x7fff);
dequeue_tm(tm);
#if PRECISE_TIMING
// Look for next task to be called and set wakeup_time
wakeup_time = wakeup_time_max;
for (TMDesc *d = tmDescList; d; d = d->next)
if ((ReadMacInt16(d->task + qType) & 0x8000))
if (timer_cmp_time(d->wakeup, wakeup_time) < 0)
wakeup_time = d->wakeup;
#endif
// Compute remaining time
tm_time_t remaining, current;
timer_current_time(current);
timer_sub_time(remaining, desc->wakeup, current);
WriteMacInt32(tm + tmCount, timer_host2mac_time(remaining));
} else
WriteMacInt32(tm + tmCount, 0);
D(bug(" tmCount %ld\n", ReadMacInt32(tm + tmCount)));
#if PRECISE_TIMING_BEOS
release_sem(wakeup_time_sem);
thread_info info;
do {
resume_thread(timer_thread); // This will unblock the thread
get_thread_info(timer_thread, &info);
} while (info.state == B_THREAD_SUSPENDED); // Sometimes, resume_thread() doesn't work (BeOS bug?)
#endif
#ifdef PRECISE_TIMING_MACH
semaphore_signal(wakeup_time_sem);
thread_abort(timer_thread);
thread_resume(timer_thread);
#endif
#if PRECISE_TIMING_POSIX
pthread_mutex_unlock(&wakeup_time_lock);
timer_thread_resume();
assert(suspend_count == 0);
#endif
// Free descriptor
free_desc(desc);
return 0;
}
void sheepshaver_state::dump_descs(void)
{
for (TMDesc *d = tmDescList; d; d = d->next) {
printf("desc: task %08x wakeup %u next %p\n", d->task, timer_host2mac_time(d->wakeup), d->next);
}
}
