On 11/21/2017 04:12 PM, Winston Chang wrote:
Thanks - I'll find another way to send messages to the main thread for printing.
The CRAN synchronicity and Bioconductor BiocParallel packages provide inter-process locks that you could use to surround writes (instead of sending message to the main thread), also easy enough to incorporate at the C level using the BH package as source for relevant boost header.
Martin
-Winston On Tue, Nov 21, 2017 at 12:42 PM, <luke-tier...@uiowa.edu> wrote:On Tue, 21 Nov 2017, Winston Chang wrote:Is it safe to call Rprintf and REprintf from a background thread? I'm working on a package that makes calls to fprintf(stderr, ...) on a background thread when errors happen, but when I run R CMD check, it says: Compiled code should not call entry points which might terminate R nor write to stdout/stderr instead of to the console, nor the system RNG. Is it safe to replace these calls with REprintf()?Only if you enjoy race conditions or segfaults. Rprintf and REprintf are not thread-safe. Best, luke-Winston ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel-- Luke Tierney Ralph E. Wareham Professor of Mathematical Sciences University of Iowa Phone: 319-335-3386 Department of Statistics and Fax: 319-335-3017 Actuarial Science 241 Schaeffer Hall email: luke-tier...@uiowa.edu Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
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