From: Aaron Patterson <[email protected]> Subject: [Chicken-users] Pipe and thread problem Date: Tue, 23 Oct 2012 14:30:57 -0700
> Hi, I'm trying to simulate reading from a TTY that writes every two > seconds. I want to do this with a pipe and two threads, one thread > writes every N seconds, while the other reads any data available on the > pipe. > > Unfortunately, my code just hangs. After speaking with the fine people > in #chicken, it seems that this may be a bug. We played with different > calls to put the threads to sleep, and different functions to read data, > but they all ended up freezing at some point. The ports obtained from calls to "open-[input|output]-file*" use internally the "stream-port" class (ports on FILE* streams, in this case created via fdopen(3)). These are not thread-aware, AFAICT. Ports created for socket-fd's (tcp.scm) and processes (posixunix.scm, see specifically ##sys#custom-[input|output]-port") apparently do. cheers, felix _______________________________________________ Chicken-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/chicken-users
