int
sysMonitorGetInfo(sys_mon_t *mid, sys_mon_info *info)
{
wait_info winfo;
sysAssert(mid != SYS_MID_NULL);
info->owner = mid->monitor_owner;
if (mid->monitor_owner) {
info->entry_count = mid->entry_count;
}
winfo.mid = mid;
winfo.nwaiters = 0;
winfo.waiters = info->monitor_waiters;
winfo.sz = info->sz_monitor_waiters;
sysThreadEnumerateOver(findWaitersHelper, (void *) &winfo);
info->n_monitor_waiters = winfo.nwaiters;
info->n_condvar_waiters = dumpWaitingQueue(&mid->mwait_queue,
info->condvar_waiters,
info->sz_condvar_waiters);
return SYS_OK;
}
/*
* Wakes up each thread in active thread queue except for the calling
* thread. The mechanism uses thread suspension, and will not wake a
* thread that was already suspended. Must be matched 1-1 with calls
* to sysThreadSingle(). Returns SYS_ERR if not all threads could be
* woken up.
*/
void
sysThreadMulti(void)
{
sysThreadEnumerateOver(threadMultiHelper, sysThreadSelf());
}
/*
* Puts each thread in the active thread queue to sleep except for the
* calling thread. The threads must be later woken up with a corresponding
* call to 'sysThreadMulti'. Returns SYS_OK on success, or SYS_ERR if any
* of the threads could not be suspended.
*/
int
sysThreadSingle(void)
{
return sysThreadEnumerateOver(threadSingleHelper, sysThreadSelf());
}
