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); } }