100% CPU expected?

[vspinu]

With the basic example

ws <- WebSocket$new("ws://echo.websocket.org/")

R takes 100% CPU. Is this expected?

─ Session info ─────────────────────────────────────────────────────────────────────────────────────────────────────
 setting  value                                             
 version  R Under development (unstable) (2018-09-12 r75294)
 os       Ubuntu 18.04.1 LTS                                
 system   x86_64, linux-gnu                                 
 ui       X11                                               
 language                                                   
 collate  en_GB.UTF-8                                       
 ctype    en_GB.UTF-8                                       
 tz       Europe/Amsterdam                                  
 date     2018-10-26                                        

─ Packages ─────────────────────────────────────────────────────────────────────────────────────────────────────────
 package     * version     date       lib source                            
 assertthat    0.2.0       2017-04-11 [1] CRAN (R 3.5.0)                    
 backports     1.1.2       2017-12-13 [1] CRAN (R 3.5.0)                    
 base64enc     0.1-3       2015-07-28 [1] CRAN (R 3.5.0)                    
 callr         3.0.0.9001  2018-10-23 [1] Github (r-lib/callr@d0ea2b6)      
 cli           1.0.1       2018-09-25 [1] CRAN (R 3.6.0)                    
 crayon        1.3.4       2017-09-16 [1] CRAN (R 3.5.0)                    
 debugme       1.1.0       2017-10-22 [1] CRAN (R 3.5.0)                    
 desc          1.2.0       2018-05-01 [1] CRAN (R 3.6.0)                    
 devtools      1.13.6.9000 2018-10-23 [1] Github (r-lib/devtools@d08ab92)   
 digest        0.6.18      2018-10-10 [1] CRAN (R 3.6.0)                    
 fs            1.2.6       2018-08-23 [1] CRAN (R 3.6.0)                    
 glue          1.3.0       2018-07-17 [1] CRAN (R 3.6.0)                    
 later         0.7.5       2018-09-18 [1] CRAN (R 3.6.0)                    
 magrittr      1.5         2014-11-22 [1] CRAN (R 3.5.0)                    
 memoise       1.1.0       2017-04-21 [1] CRAN (R 3.5.0)                    
 pkgbuild      1.0.2.9000  2018-10-23 [1] Github (r-lib/pkgbuild@aec4654)   
 pkgload       1.0.1.9000  2018-10-23 [1] Github (r-lib/pkgload@9b8d9c4)    
 prettyunits   1.0.2       2015-07-13 [1] CRAN (R 3.5.0)                    
 processx      3.2.0       2018-08-16 [1] CRAN (R 3.6.0)                    
 ps            1.2.0       2018-10-16 [1] CRAN (R 3.6.0)                    
 R6            2.3.0       2018-10-04 [1] CRAN (R 3.6.0)                    
 Rcpp          0.12.19     2018-10-01 [1] CRAN (R 3.6.0)                    
 remotes       2.0.0.9000  2018-10-23 [1] Github (r-lib/remotes@2729d0e)    
 rlang         0.3.0.9000  2018-10-24 [1] Github (r-lib/rlang@d1f0efe)      
 rprojroot     1.3-2       2018-01-03 [1] CRAN (R 3.5.0)                    
 sessioninfo   1.1.0       2018-09-25 [1] CRAN (R 3.6.0)                    
 testthat      2.0.0       2017-12-13 [1] CRAN (R 3.5.0)                    
 usethis       1.4.0       2018-08-14 [1] CRAN (R 3.6.0)                    
 websocket   * 0.0.0.9001  2018-10-24 [1] Github (rstudio/websocket@ef78ced)
 withr         2.1.2.9000  2018-10-23 [1] Github (jimhester/withr@be57595)  

[1] /home/vspinu/.lib/3.6.0
[2] /home/vspinu/bin/R-latest/library

[wch]

I'm able to reproduce on my Mac. It is definitely not expected. We'll take a look into it.

[jcheng5]

Thanks for the report! I have prepared a PR on the later package that should fix it.
r-lib/later#76