(Illustration by Gaich Muramatsu)
On Fri, Nov 05, 1999 at 10:05:35AM -0500, Thomas Valentino Crimi wrote: > > Jan, > > How deep are your pthreads patches? I'm considering getting coda to > work on my FreeBSD Alpha machine, but my cursory attempt to get lwm to > work failed (I also had to make numerous long -> time_t changes - is > there any reason to go with longs?). Would you say it's easier to keep > working with lwm or to try to merge ptrheads (#ifdef?) :) Hi Thomas, First I should warn you. At the moment most of the code is not 64-bit clean. An alpha port will therefore involve a lot of work. The pthread patches are only agains LWP. I actually `emulate' LWP behaviour (non-preemptive cooperative threads) by using a run_lock mutex to only allow one thread to run at a time. Unless ofcourse a thread voluntarily give up this mutex in which case it will run completely preemptive. The reason for doing it this way is that most of the code doesn't expect to be preempted, and only a little locking is done. There are also only about 3 threads for which it will make a big difference when they are made preemptive. The rvm_flush thread, which commits pending transactions back to disk, and the rpc2/sftp_SocketListener that handle incoming requests/replies and the filetransfers. But as the API is unmodified it probably suffers from many of the same 64-bit problems as the existing implementation. JanReceived on 1999-11-05 13:19:53