On Nov 13 19:04, Bruno Haible via Cygwin wrote: > Corinna Vinschen wrote: > > > And indeed glibc, musl libc, AIX, Android, and even NetBSD implement it > > > in a > > > multithread-safe way. > > > > Our code is from FreeBSD, originally. I checked the latest code from > > FreeBSD. It doesn't lock anything in random() and generates the same > > error when running the same test app. > > > > Why is that ok for FreeBSD? > > It is not OK in FreeBSD, either. This is what I noted in the Gnulib manual: > https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob;f=doc/posix-functions/random.texi > > But it is MT-safe in NetBSD (in the '#ifndef SMALL_RANDOM' branch): > http://cvsweb.netbsd.org/bsdweb.cgi/src/common/lib/libc/stdlib/random.c?rev=1.7&content-type=text/x-cvsweb-markup
Ok, I pushed a patch(*) to make the random(3) functions thread-safe, more or less following NetBSDs lead. If you get a chance, give the next test release cygwin-3.5.0-0.459.gd223f095905a a try. The patch will be part of the next release, 3.4.10. Thanks, Corinna (*) https://sourceware.org/git/?p=newlib-cygwin.git;a=commit;h=06e463223b95 -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
