Danke! -----Ursprüngliche Nachricht----- Von: Ulrich Klauer [mailto:ulr...@chirlu.de] Gesendet: Montag, 5. August 2013 19:29 An: sox-devel@lists.sourceforge.net Betreff: Re: [SoX-devel] Sox with multiple threads?
Christian Hoene wrote: > One question. Is sox reentrant. Can I fork a sox program and run two > sox chains in parallel? When you call fork(), the address space is duplicated, so unless there are already open files, the processes are completely independent. Re-entrancy, on the other hand, is hardly relevant. I guess what you really mean is thread safety. Unfortunately, libSoX uses some global state and is thus not completely thread-safe; even running two different chains in parallel in a single thread may lead to problems. However, if you a) use the same settings (buffer size etc.) for all chains, b) don't rely on the "subsystem" information in the message handler (either set verbosity to 0 or use a custom handler that doesn't read the subsystem value), c) don't mind a bit of extra randomness (read: race conditions) in the pseudo-random number generator, then it will probably work. Ulrich ---------------------------------------------------------------------------- -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk _______________________________________________ SoX-devel mailing list SoX-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sox-devel ------------------------------------------------------------------------------ Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk _______________________________________________ SoX-devel mailing list SoX-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sox-devel
