// our feet by the sp master. Also accessing other Thread objects is
// unsafe because if we are exiting there is a chance are already freed.
lock_release(sp->lock);
+
+ // Try to reparent to another split point
+ for (int i = 0; i < Threads.size(); i++)
+ {
+ Thread* th = &Threads[i];
+ int spCnt = th->splitPointsCnt;
+ SplitPoint* latest = &th->splitPoints[spCnt ? spCnt - 1 : 0];
+
+ // Find the first split point with still all slaves running
+ // where we are available as a possible slave.
+ if ( this->is_available_to(th)
+ && spCnt > 0
+ && !latest->cutoff
+ && latest->slavesMask == latest->allSlavesMask
+ && !single_bit(latest->allSlavesMask))
+ {
+ lock_grab(latest->lock);
+ lock_grab(Threads.splitLock);
+
+ // Retest all under lock protection, we are in the middle
+ // of a race storm here !
+ if ( this->is_available_to(th)
+ && spCnt == th->splitPointsCnt
+ && !latest->cutoff
+ && latest->slavesMask == latest->allSlavesMask
+ && !single_bit(latest->allSlavesMask))
+ {
+ latest->slavesMask |= 1ULL << idx; // allSlavesMask is not updated
+ curSplitPoint = latest;
+ is_searching = true;
+ }
+
+ lock_release(Threads.splitLock);
+ lock_release(latest->lock);
+
+ break; // Exit anyhow, only one try (enough in 99% of cases)
+ }
+ }
}
}
}