R Under development (unstable) (2023-06-30 r84625 ucrt) -- "Unsuffered Consequences"
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> source("incl/start.R")
[18:01:05.113] plan(): Setting new future strategy stack:
[18:01:05.115] List of future strategies:
[18:01:05.115] 1. sequential:
[18:01:05.115]    - args: function (..., envir = parent.frame())
[18:01:05.115]    - tweaked: FALSE
[18:01:05.115]    - call: future::plan("sequential")
[18:01:05.130] plan(): nbrOfWorkers() = 1
> options(future.debug = FALSE)
> message("*** cluster() ...")
*** cluster() ...
> 
> message("Library paths: ", paste(sQuote(.libPaths()), collapse = ", "))
Library paths: 'D:/temp/Rtmp67Lu9b/RLIBS_19fe819742e2c', 'D:/RCompile/recent/R/library'
> message("Package path: ", sQuote(system.file(package = "future")))
Package path: 'D:/RCompile/CRANincoming/R-devel/lib/future'
> 
> types <- "PSOCK"
> 
> ## Speed up CRAN checks: Skip on CRAN Windows 32-bit
> if (isWin32) types <- NULL
> 
> if (supportsMulticore() && !on_solaris) types <- c(types, "FORK")
> 
> ## WORKAROUND: covr::package_coverage() -> merge_coverage() -> ... produces
> ## "Error in readRDS(x) : error reading from connection" for type = "FORK".
> ## Is this related to mcparallel() comments in help("package_coverage")?
> ## /HB 2017-05-20
> if (covr_testing) types <- setdiff(types, "FORK")
> 
> ## WORKAROUND: FORK:ed processing gives really odd type="FORK" results on
> ## macOS when running on GitHub Actions. /HB 2020-06-07
> ## This error is also appearing on CRANs' 'r-release-macos-arm64' and
> ## 'M1mac' checks. /HB 2021-08-11
> if (on_macos) types <- setdiff(types, "FORK")
> 
> pid <- Sys.getpid()
> message("Main PID (original): ", pid)
Main PID (original): 100012
> cl <- NULL
> for (type in types) {
+   message(sprintf("Test set #1 with cluster type %s ...", sQuote(type)))
+ 
+   message("Main PID (original): ", pid)
+ 
+   for (cores in 1:availCores) {
+     message(sprintf("Testing with %d cores on type = %s ...",
+                     cores, sQuote(type)))
+     options(mc.cores = cores)
+   
+     ## Set up a cluster with <cores> nodes (explicitly)
+     cl <- parallel::makeCluster(cores, type = type, timeout = 60)
+     print(cl)
+     
+     plan(cluster, workers = cl)
+ 
+     ## Assert that the worker's global environment is "empty"
+     f <- future(ls(envir=globalenv(), all.names=TRUE))
+     v <- value(f)
+     v <- grep("^[.][.][.]future[.]", v, invert = TRUE, value = TRUE)
+     if (length(v) > 0) {
+       stop(sprintf("Stray variables in the global environment of %s: %s",
+            class(f)[1], paste(sQuote(v), collapse = ", ")))
+     }
+ 
+     ## No global variables
+     f <- try(cluster({
+       42L
+     }, workers = cl), silent = FALSE)
+     print(f)
+     stopifnot(inherits(f, "ClusterFuture"))
+   
+     print(resolved(f))
+     y <- value(f)
+     print(y)
+     stopifnot(y == 42L)
+ 
+     ## No global variables
+     f <- try(cluster({
+       42L
+     }, workers = cl), silent = FALSE)
+     print(f)
+     stopifnot(inherits(f, "ClusterFuture"))
+   
+     print(resolved(f))
+     y <- value(f)
+     print(y)
+     stopifnot(y == 42L)
+   
+     ## A global variable
+     a <- 0
+     f <- try(future({
+       b <- 3
+       c <- 2
+       a * b * c
+     }))
+     print(f)
+   
+   
+     ## A cluster future is evaluated in a separate
+     ## R session process.  Changing the value of a global
+     ## variable should not affect the result of the
+     ## future.
+     a <- 7  ## Make sure globals are frozen
+     v <- value(f)
+     print(v)
+     stopifnot(v == 0)
+ 
+     if (!"covr" %in% loadedNamespaces()) {
+       message("*** cluster() with globals and blocking")
+       fs <- list()
+       for (ii in 1:3) {
+         message(sprintf(" - Creating cluster future #%d ...", ii))
+         fs[[ii]] <- future({ ii }, label = sprintf("future-%d", ii))
+       }
+       message(sprintf(" - Resolving %d cluster futures", length(fs)))
+       v <- sapply(fs, FUN = value)
+       stopifnot(all(v == 1:3))
+     }
+   
+   
+     message("*** cluster() and errors")
+     f <- future({
+       stop("Whoops!")
+       1
+     })
+     print(f)
+     v <- value(f, signal = FALSE)
+     print(v)
+     stopifnot(inherits(v, "simpleError"))
+   
+     res <- tryCatch(value(f), error = identity)
+     print(res)
+     stopifnot(inherits(res, "error"))
+   
+     ## Error is repeated
+     res <- tryCatch(value(f), error = identity)
+     print(res)
+     stopifnot(inherits(res, "error"))
+   
+     ## Custom error class
+     f <- future({
+       stop(structure(list(message = "boom"),
+                      class = c("MyError", "error", "condition")))
+     })
+     print(f)
+     v <- value(f, signal = FALSE)
+     print(v)
+     stopifnot(inherits(v, "error"), inherits(v, "MyError"))
+   
+     ## Make sure error is signaled
+     res <- tryCatch(value(f), error = identity)
+     stopifnot(inherits(res, "error"), inherits(res, "MyError"))    
+   
+     message("*** cluster() - too large globals ...")
+     ooptsT <- options(future.globals.maxSize = object.size(1:1014))
+   
+     limit <- getOption("future.globals.maxSize")
+     cat(sprintf("Max total size of globals: %g bytes\n", limit))
+   
+     ## A large object
+     a <- 1:1014
+     yTruth <- sum(a)
+     size <- object.size(a)
+     cat(sprintf("a: %g bytes\n", size))
+     f <- future({ sum(a) })
+     print(f)
+     rm(list = "a")
+     v <- value(f)
+     print(v)
+     stopifnot(v == yTruth)
+   
+   
+     ## A too large object
+     a <- 1:1015
+     yTruth <- sum(a)
+     size <- object.size(a)
+     cat(sprintf("a: %g bytes\n", size))
+     res <- tryCatch(f <- future({ sum(a) }), error = identity)
+     rm(list = "a")
+     stopifnot(inherits(res, "error"))
+   
+     ## Undo options changed in this test
+     options(ooptsT)
+   
+     message("*** cluster() - too large globals ... DONE")
+   
+     message("*** cluster() - installed libraries ...")
+     f <- try(cluster({
+       list(
+         libPaths = .libPaths()
+       )
+     }, workers = cl), silent = FALSE)
+     print(f)
+     stopifnot(inherits(f, "ClusterFuture"))
+     v <- value(f)
+     message(paste(capture.output(str(v)), collapse = "\n"))
+     message("*** cluster() - installed packages ... DONE")
+   
+   
+     message("*** cluster() - assert covr workaround ...")
+     f <- try(cluster({
+       future:::hpaste(1:100)
+     }, workers = cl), silent = FALSE)
+     print(f)
+     stopifnot(inherits(f, "ClusterFuture"))
+     v <- value(f)
+     message(v)
+     stopifnot(v == hpaste(1:100))
+     message("*** cluster() - assert covr workaround ... DONE")
+ 
+     ## Assert that the worker's global environment is "empty"
+     f <- future(ls(envir=globalenv(), all.names=TRUE))
+     v <- value(f)
+     v <- grep("^[.][.][.]future[.]", v, invert = TRUE, value = TRUE)
+     if (length(v) > 0) {
+       stop(sprintf("Stray variables in the global environment of %s: %s",
+            class(f)[1], paste(sQuote(v), collapse = ", ")))
+     }
+ 
+     ## Sanity checks
+     pid2 <- Sys.getpid()
+     message("Main PID (original): ", pid)
+     message("Main PID: ", pid2)
+     stopifnot(pid2 == pid)
+ 
+     ## Cleanup
+     parallel::stopCluster(cl)
+   
+     message(sprintf("Testing with %d cores on type = %s ... DONE",
+                     cores, sQuote(type)))
+   } ## for (cores ...)
+ 
+   message("*** cluster() - exceptions ...")
+   
+   res <- tryCatch(cluster(42L, workers = NA), error = identity)
+   print(res)
+   stopifnot(inherits(res, "error"))
+   
+   message("*** cluster() - exceptions ... DONE")
+ 
+   message("*** cluster() - assert registry behavior ...")
+   
+   ## Explicitly created clusters are *not* added to the registry
+   cl <- parallel::makeCluster(1L, type = type, timeout = 60)
+   plan(cluster, workers = cl)
+   clR <- ClusterRegistry("get")
+   stopifnot(is.null(clR))
+   
+   ## ... and therefore changing plans shouldn't change anything
+   plan(sequential)
+   clR <- ClusterRegistry("get")
+   stopifnot(is.null(clR))
+ 
+   ## Cleanup
+   print(cl)
+   str(cl)
+   parallel::stopCluster(cl)
+   
+   message("*** cluster() - assert registry behavior ... DONE")
+ 
+   ## Sanity checks
+   pid2 <- Sys.getpid()
+   message("Main PID (original): ", pid)
+   message("Main PID: ", pid2)
+   stopifnot(pid2 == pid)
+ 
+   ## Cleanup
+   plan(sequential)
+ 
+   cl1 <- parallel::makeCluster(1L, type = type, timeout = 60)
+   plan(cluster, workers = cl1)
+   f1 <- future(1)
+ 
+   ## Cleanup
+   print(cl1)
+   str(cl1)
+   parallel::stopCluster(cl1)
+ 
+   message(sprintf("Test set #1 with cluster type %s ... DONE", sQuote(type)))
+ } ## for (type ...)
Test set #1 with cluster type 'PSOCK' ...
Main PID (original): 100012
Testing with 1 cores on type = 'PSOCK' ...
socket cluster with 1 nodes on host 'localhost'
ClusterFuture:
Label: '<none>'
Expression:
{
    42L
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] TRUE
[1] 42
ClusterFuture:
Label: '<none>'
Expression:
{
    42L
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] TRUE
[1] 42
ClusterFuture:
Label: '<none>'
Expression:
{
    b <- 3
    c <- 2
    a * b * c
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: 1 objects totaling 56 bytes (numeric 'a' of 56 bytes)
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] 0
*** cluster() with globals and blocking
 - Creating cluster future #1 ...
 - Creating cluster future #2 ...
 - Creating cluster future #3 ...
 - Resolving 3 cluster futures
*** cluster() and errors
ClusterFuture:
Label: '<none>'
Expression:
{
    stop("Whoops!")
    1
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
<simpleError in withCallingHandlers({    {        stop("Whoops!")        1    }}, immediateCondition = function(cond) {    sendCondition <- ...future.makeSendCondition()    sendCondition(cond)    muffleCondition <- function (cond, pattern = "^muffle")     {        inherits <- base::inherits        invokeRestart <- base::invokeRestart        is.null <- base::is.null        muffled <- FALSE        if (inherits(cond, "message")) {            muffled <- grepl(pattern, "muffleMessage")            if (muffled)                 invokeRestart("muffleMessage")        }        else if (inherits(cond, "warning")) {            muffled <- grepl(pattern, "muffleWarning")            if (muffled)                 invokeRestart("muffleWarning")        }        else if (inherits(cond, "condition")) {            if (!is.null(pattern)) {                computeRestarts <- base::computeRestarts                grepl <- base::grepl                restarts <- computeRestarts(cond)                for (restart in restarts) {                  name <- restart$name                  if (is.null(name))                     next                  if (!grepl(pattern, name))                     next                  invokeRestart(restart)                  muffled <- TRUE                  break                }            }        }        invisible(muffled)    }    muffleCondition(cond)}): Whoops!>
<simpleError in withCallingHandlers({    {        stop("Whoops!")        1    }}, immediateCondition = function(cond) {    sendCondition <- ...future.makeSendCondition()    sendCondition(cond)    muffleCondition <- function (cond, pattern = "^muffle")     {        inherits <- base::inherits        invokeRestart <- base::invokeRestart        is.null <- base::is.null        muffled <- FALSE        if (inherits(cond, "message")) {            muffled <- grepl(pattern, "muffleMessage")            if (muffled)                 invokeRestart("muffleMessage")        }        else if (inherits(cond, "warning")) {            muffled <- grepl(pattern, "muffleWarning")            if (muffled)                 invokeRestart("muffleWarning")        }        else if (inherits(cond, "condition")) {            if (!is.null(pattern)) {                computeRestarts <- base::computeRestarts                grepl <- base::grepl                restarts <- computeRestarts(cond)                for (restart in restarts) {                  name <- restart$name                  if (is.null(name))                     next                  if (!grepl(pattern, name))                     next                  invokeRestart(restart)                  muffled <- TRUE                  break                }            }        }        invisible(muffled)    }    muffleCondition(cond)}): Whoops!>
<simpleError in withCallingHandlers({    {        stop("Whoops!")        1    }}, immediateCondition = function(cond) {    sendCondition <- ...future.makeSendCondition()    sendCondition(cond)    muffleCondition <- function (cond, pattern = "^muffle")     {        inherits <- base::inherits        invokeRestart <- base::invokeRestart        is.null <- base::is.null        muffled <- FALSE        if (inherits(cond, "message")) {            muffled <- grepl(pattern, "muffleMessage")            if (muffled)                 invokeRestart("muffleMessage")        }        else if (inherits(cond, "warning")) {            muffled <- grepl(pattern, "muffleWarning")            if (muffled)                 invokeRestart("muffleWarning")        }        else if (inherits(cond, "condition")) {            if (!is.null(pattern)) {                computeRestarts <- base::computeRestarts                grepl <- base::grepl                restarts <- computeRestarts(cond)                for (restart in restarts) {                  name <- restart$name                  if (is.null(name))                     next                  if (!grepl(pattern, name))                     next                  invokeRestart(restart)                  muffled <- TRUE                  break                }            }        }        invisible(muffled)    }    muffleCondition(cond)}): Whoops!>
ClusterFuture:
Label: '<none>'
Expression:
{
    stop(structure(list(message = "boom"), class = c("MyError", 
        "error", "condition")))
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
<MyError: boom>
*** cluster() - too large globals ...
Max total size of globals: 4104 bytes
a: 4104 bytes
ClusterFuture:
Label: '<none>'
Expression:
{
    sum(a)
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: 1 objects totaling 4.01 KiB (integer 'a' of 4.01 KiB)
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] 514605
a: 4112 bytes
*** cluster() - too large globals ... DONE
*** cluster() - installed libraries ...
ClusterFuture:
Label: '<none>'
Expression:
{
    list(libPaths = .libPaths())
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
List of 1
 $ libPaths: chr [1:2] "D:/temp/Rtmp67Lu9b/RLIBS_19fe819742e2c" "D:/RCompile/recent/R/library"
*** cluster() - installed packages ... DONE
*** cluster() - assert covr workaround ...
ClusterFuture:
Label: '<none>'
Expression:
{
    future:::hpaste(1:100)
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100
*** cluster() - assert covr workaround ... DONE
Main PID (original): 100012
Main PID: 100012
Testing with 1 cores on type = 'PSOCK' ... DONE
Testing with 2 cores on type = 'PSOCK' ...
socket cluster with 2 nodes on host 'localhost'
ClusterFuture:
Label: '<none>'
Expression:
{
    42L
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] TRUE
[1] 42
ClusterFuture:
Label: '<none>'
Expression:
{
    42L
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] TRUE
[1] 42
ClusterFuture:
Label: '<none>'
Expression:
{
    b <- 3
    c <- 2
    a * b * c
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: 1 objects totaling 56 bytes (numeric 'a' of 56 bytes)
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] 0
*** cluster() with globals and blocking
 - Creating cluster future #1 ...
 - Creating cluster future #2 ...
 - Creating cluster future #3 ...
 - Resolving 3 cluster futures
*** cluster() and errors
ClusterFuture:
Label: '<none>'
Expression:
{
    stop("Whoops!")
    1
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
<simpleError in withCallingHandlers({    {        stop("Whoops!")        1    }}, immediateCondition = function(cond) {    sendCondition <- ...future.makeSendCondition()    sendCondition(cond)    muffleCondition <- function (cond, pattern = "^muffle")     {        inherits <- base::inherits        invokeRestart <- base::invokeRestart        is.null <- base::is.null        muffled <- FALSE        if (inherits(cond, "message")) {            muffled <- grepl(pattern, "muffleMessage")            if (muffled)                 invokeRestart("muffleMessage")        }        else if (inherits(cond, "warning")) {            muffled <- grepl(pattern, "muffleWarning")            if (muffled)                 invokeRestart("muffleWarning")        }        else if (inherits(cond, "condition")) {            if (!is.null(pattern)) {                computeRestarts <- base::computeRestarts                grepl <- base::grepl                restarts <- computeRestarts(cond)                for (restart in restarts) {                  name <- restart$name                  if (is.null(name))                     next                  if (!grepl(pattern, name))                     next                  invokeRestart(restart)                  muffled <- TRUE                  break                }            }        }        invisible(muffled)    }    muffleCondition(cond)}): Whoops!>
<simpleError in withCallingHandlers({    {        stop("Whoops!")        1    }}, immediateCondition = function(cond) {    sendCondition <- ...future.makeSendCondition()    sendCondition(cond)    muffleCondition <- function (cond, pattern = "^muffle")     {        inherits <- base::inherits        invokeRestart <- base::invokeRestart        is.null <- base::is.null        muffled <- FALSE        if (inherits(cond, "message")) {            muffled <- grepl(pattern, "muffleMessage")            if (muffled)                 invokeRestart("muffleMessage")        }        else if (inherits(cond, "warning")) {            muffled <- grepl(pattern, "muffleWarning")            if (muffled)                 invokeRestart("muffleWarning")        }        else if (inherits(cond, "condition")) {            if (!is.null(pattern)) {                computeRestarts <- base::computeRestarts                grepl <- base::grepl                restarts <- computeRestarts(cond)                for (restart in restarts) {                  name <- restart$name                  if (is.null(name))                     next                  if (!grepl(pattern, name))                     next                  invokeRestart(restart)                  muffled <- TRUE                  break                }            }        }        invisible(muffled)    }    muffleCondition(cond)}): Whoops!>
<simpleError in withCallingHandlers({    {        stop("Whoops!")        1    }}, immediateCondition = function(cond) {    sendCondition <- ...future.makeSendCondition()    sendCondition(cond)    muffleCondition <- function (cond, pattern = "^muffle")     {        inherits <- base::inherits        invokeRestart <- base::invokeRestart        is.null <- base::is.null        muffled <- FALSE        if (inherits(cond, "message")) {            muffled <- grepl(pattern, "muffleMessage")            if (muffled)                 invokeRestart("muffleMessage")        }        else if (inherits(cond, "warning")) {            muffled <- grepl(pattern, "muffleWarning")            if (muffled)                 invokeRestart("muffleWarning")        }        else if (inherits(cond, "condition")) {            if (!is.null(pattern)) {                computeRestarts <- base::computeRestarts                grepl <- base::grepl                restarts <- computeRestarts(cond)                for (restart in restarts) {                  name <- restart$name                  if (is.null(name))                     next                  if (!grepl(pattern, name))                     next                  invokeRestart(restart)                  muffled <- TRUE                  break                }            }        }        invisible(muffled)    }    muffleCondition(cond)}): Whoops!>
ClusterFuture:
Label: '<none>'
Expression:
{
    stop(structure(list(message = "boom"), class = c("MyError", 
        "error", "condition")))
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
<MyError: boom>
*** cluster() - too large globals ...
Max total size of globals: 4104 bytes
a: 4104 bytes
ClusterFuture:
Label: '<none>'
Expression:
{
    sum(a)
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: 1 objects totaling 4.01 KiB (integer 'a' of 4.01 KiB)
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[1] 514605
a: 4112 bytes
*** cluster() - too large globals ... DONE
*** cluster() - installed libraries ...
ClusterFuture:
Label: '<none>'
Expression:
{
    list(libPaths = .libPaths())
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
List of 1
 $ libPaths: chr [1:2] "D:/temp/Rtmp67Lu9b/RLIBS_19fe819742e2c" "D:/RCompile/recent/R/library"
*** cluster() - installed packages ... DONE
*** cluster() - assert covr workaround ...
ClusterFuture:
Label: '<none>'
Expression:
{
    future:::hpaste(1:100)
}
Lazy evaluation: FALSE
Asynchronous evaluation: TRUE
Local evaluation: TRUE
Environment: R_GlobalEnv
Capture standard output: TRUE
Capture condition classes: 'condition' (excluding 'nothing')
Globals: <none>
Packages: <none>
L'Ecuyer-CMRG RNG seed: <none> (seed = FALSE)
Resolved: TRUE
Value: <not collected>
Conditions captured: <none>
Early signaling: FALSE
Owner process: 8814b79c-2928-00ab-74eb-9a122715a100
Class: 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100
*** cluster() - assert covr workaround ... DONE
Main PID (original): 100012
Main PID: 100012
Testing with 2 cores on type = 'PSOCK' ... DONE
*** cluster() - exceptions ...
<simpleError in UseMethod("as.cluster"): no applicable method for 'as.cluster' applied to an object of class "logical">
*** cluster() - exceptions ... DONE
*** cluster() - assert registry behavior ...
socket cluster with 1 nodes on host 'localhost'
List of 1
 $ :List of 3
  ..$ con : 'sockconn' int 4
  .. ..- attr(*, "conn_id")=<externalptr> 
  ..$ host: chr "localhost"
  ..$ rank: num 0
  ..- attr(*, "class")= chr "SOCKnode"
 - attr(*, "class")= chr [1:2] "SOCKcluster" "cluster"
*** cluster() - assert registry behavior ... DONE
Main PID (original): 100012
Main PID: 100012
socket cluster with 1 nodes on host 'localhost'
List of 1
 $ :List of 3
  ..$ con : 'sockconn' int 4
  .. ..- attr(*, "conn_id")=<externalptr> 
  ..$ host: chr "localhost"
  ..$ rank: num 0
  ..- attr(*, "class")= chr "SOCKnode"
 - attr(*, "class")= chr [1:2] "SOCKcluster" "cluster"
Test set #1 with cluster type 'PSOCK' ... DONE
> 
> library("parallel")
> for (type in types) {
+   if (on_solaris) next
+  
+   message(sprintf("Test set #2 with cluster type %s ...", sQuote(type)))
+ 
+   message("*** cluster() - setDefaultCluster() ...")
+   
+   cl <- makeCluster(1L, type = type, timeout = 60)
+   print(cl)
+   
+   setDefaultCluster(cl)
+   ## FIXME: Make plan(cluster, workers = NULL) work such that
+   ## setDefaultCluster() is actually tested.
+   plan(cluster)
+   
+   pid <- Sys.getpid()
+   message(pid)
+   
+   a %<-% Sys.getpid()
+   message(a)
+   
+   setDefaultCluster(NULL)
+ 
+   ## Cleanup
+   print(cl)
+   str(cl)
+   parallel::stopCluster(cl)
+   
+   message("*** cluster() - setDefaultCluster() ... DONE")
+ 
+   ## Sanity checks
+   pid2 <- Sys.getpid()
+   message("Main PID (original): ", pid)
+   message("Main PID: ", pid2)
+   stopifnot(pid2 == pid)
+ 
+   ## Cleanup
+   plan(sequential)
+ 
+   message(sprintf("Test set #2 with cluster type %s ... DONE", sQuote(type)))
+ } ## for (type ...)
Test set #2 with cluster type 'PSOCK' ...
*** cluster() - setDefaultCluster() ...
socket cluster with 1 nodes on host 'localhost'
100012
14972
socket cluster with 1 nodes on host 'localhost'
List of 1
 $ :List of 3
  ..$ con : 'sockconn' int 4
  .. ..- attr(*, "conn_id")=<externalptr> 
  ..$ host: chr "localhost"
  ..$ rank: num 0
  ..- attr(*, "class")= chr "SOCKnode"
 - attr(*, "class")= chr [1:2] "SOCKcluster" "cluster"
*** cluster() - setDefaultCluster() ... DONE
Main PID (original): 100012
Main PID: 100012
Test set #2 with cluster type 'PSOCK' ... DONE
> 
> ## Sanity checks
> pid2 <- Sys.getpid()
> message("Main PID (original): ", pid)
Main PID (original): 100012
> message("Main PID: ", pid2)
Main PID: 100012
> stopifnot(pid2 == pid)
> 
> message("*** cluster() - exception when re-creating workers ...")
*** cluster() - exception when re-creating workers ...
> ## https://github.com/HenrikBengtsson/future/issues/261
> 
> plan(cluster, workers = "localhost")
> f <- future(1)
> plan(cluster, workers = "localhost", .skip = FALSE)
> res <- tryCatch({
+   value(f)
+ }, FutureError = function(ex) {
+   message(conditionMessage(ex))
+   ex
+ })
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  NAs introduced by coercion
ClusterFuture (<none>) failed to receiving message from cluster RichSOCKnode #1 (PID 130204 on localhost 'localhost'). The reason reported was 'Connection to the worker is corrupt'. Post-mortem diagnostic: No process exists with this PID, i.e. the localhost worker is no longer alive. The socket connection to the worker of ClusterFuture future (<none>) is lost or corrupted: Connection (connection: index=4, description="<-CRANwin3.fb05.statistik.uni-dortmund.de:37898", class="sockconn", mode="a+b", text="binary", opened="opened", can read="yes", can write="yes", id=297, raw_id="<pointer: 0x0000000000000129>") is no longer valid. It differ from the currently registered R connection with the same index 4 (connection: index=4, description="<-CRANwin3.fb05.statistik.uni-dortmund.de:37898", class="sockconn", mode="a+b", text="binary", opened="opened", can read="yes", can write="yes", id=301, raw_id="<pointer: 0x000000000000012d>"). As an example, this may happen if base::closeAllConnections() have been called, for instance via base::sys.save.image() which in turn is called if the R session (pid 100012) is forced to terminate
> stopifnot(inherits(res, "FutureError"))
> 
> message("*** cluster() - exception when re-creating workers ... DONE")
*** cluster() - exception when re-creating workers ... DONE
> 
> 
> message("*** cluster() ... DONE")
*** cluster() ... DONE
> 
> ## Sanity checks
> pid2 <- Sys.getpid()
> message("Main PID (original): ", pid)
Main PID (original): 100012
> message("Main PID: ", pid2)
Main PID: 100012
> stopifnot(pid2 == pid)
> 
> source("incl/end.R")
Failed to undo environment variables:
 - Expected environment variables: [n=201] '!ExitCode', 'ALLUSERSPROFILE', 'APPDATA', 'BIBINPUTS', 'BINDIR', 'BSTINPUTS', 'COMMONPROGRAMFILES', 'COMPUTERNAME', 'COMSPEC', 'CURL_CA_BUNDLE', 'CYGWIN', 'CommonProgramFiles(x86)', 'CommonProgramW6432', 'DriverData', 'HOME', 'HOMEDRIVE', 'HOMEPATH', 'JAGS_ROOT', 'JAVA_HOME', 'LANGUAGE', 'LC_COLLATE', 'LC_MONETARY', 'LC_TIME', 'LOCALAPPDATA', 'LOGONSERVER', 'LS_HOME', 'LS_LICENSE_PATH', 'MAKE', 'MAKEFLAGS', 'MAKELEVEL', 'MFLAGS', 'MSMPI_BENCHMARKS', 'MSMPI_BIN', 'MSYS2_ENV_CONV_EXCL', 'NUMBER_OF_PROCESSORS', 'OMP_THREAD_LIMIT', 'OS', 'PATH', 'PATHEXT', 'PROCESSOR_ARCHITECTURE', 'PROCESSOR_IDENTIFIER', 'PROCESSOR_LEVEL', 'PROCESSOR_REVISION', 'PROGRAMFILES', 'PROMPT', 'PSModulePath', 'PUBLIC', 'PWD', 'ProgramData', 'ProgramFiles(x86)', 'ProgramW6432', 'RETICULATE_AUTOCONFIGURE', 'RTOOLS43_HOME', 'R_ARCH', 'R_BROWSER', 'R_BZIPCMD', 'R_CMD', 'R_COMPILED_BY', 'R_CRAN_WEB', 'R_CUSTOM_TOOLS_PATH', 'R_CUSTOM_TOOLS_SOFT', 'R_DOC_DIR', 'R_ENVIRON_USER', 'R_GSCMD', 'R_GZIPCMD', 'R_HOME', 'R_INCLUDE_DIR', 'R_INSTALL_TAR', 'R_LIBS', 'R_LIBS_SITE', 'R_LIBS_USER', 'R_MAX_NUM_DLLS', 'R_OSTYPE', 'R_PAPERSIZE', 'R_PAPERSIZE_USER', 'R_PARALLELLY_MAKENODEPSOCK_AUTOKILL', 'R_PARALLELLY_MAKENODEPSOCK_CONNECTTIMEOUT', 'R_PARALLELLY_MAKENODEPSOCK_RSCRIPT_LABEL', 'R_PARALLELLY_MAKENODEPSOCK_SESSIONINFO_PKGS', 'R_PARALLELLY_MAKENODEPSOCK_TIMEOUT', 'R_PARALLELLY_RANDOM_PORTS', 'R_PARALLEL_PORT', 'R_RD4PDF', 'R_RTOOLS43_PATH', 'R_SCRIPT_LEGACY', 'R_SHARE_DIR', 'R_TESTS', 'R_UNZIPCMD', 'R_USER', 'R_VERSION', 'R_ZIPCMD', 'SED', 'SHLVL', 'SYSTEMDRIVE', 'SYSTEMROOT', 'TAR', 'TAR_OPTIONS', 'TEMP', 'TERM', 'TEXINPUTS', 'TMP', 'TMPDIR', 'USERDOMAIN', 'USERDOMAIN_ROAMINGPROFILE', 'USERNAME', 'USERPROFILE', 'WINDIR', '_', '_R_CHECK_AUTOCONF_', '_R_CHECK_BOGUS_RETURN_', '_R_CHECK_BROWSER_NONINTERACTIVE_', '_R_CHECK_BUILD_VIGNETTES_SEPARATELY_', '_R_CHECK_CODETOOLS_PROFILE_', '_R_CHECK_CODE_ASSIGN_TO_GLOBALENV_', '_R_CHECK_CODE_ATTACH_', '_R_CHECK_CODE_CLASS_IS_STRING_', '_R_CHECK_CODE_DATA_INTO_GLOBALENV_', '_R_CHECK_CODE_USAGE_VIA_NAMESPACES_', '_R_CHECK_CODE_USAGE_WITHOUT_LOADING_', '_R_CHECK_CODE_USAGE_WITH_ONLY_BASE_ATTACHED_', '_R_CHECK_CODOC_VARIABLES_IN_USAGES_', '_R_CHECK_COMPACT_DATA2_', '_R_CHECK_COMPILATION_FLAGS_', '_R_CHECK_CONNECTIONS_LEFT_OPEN_', '_R_CHECK_CRAN_INCOMING_', '_R_CHECK_CRAN_INCOMING_CHECK_FILE_URIS_', '_R_CHECK_CRAN_INCOMING_CHECK_URLS_IN_PARALLEL_', '_R_CHECK_CRAN_INCOMING_NOTE_GNU_MAKE_', '_R_CHECK_CRAN_INCOMING_REMOTE_', '_R_CHECK_CRAN_INCOMING_USE_ASPELL_', '_R_CHECK_DATALIST_', '_R_CHECK_DEPRECATED_DEFUNCT_', '_R_CHECK_DOC_SIZES2_', '_R_CHECK_DOT_FIRSTLIB_', '_R_CHECK_DOT_INTERNAL_', '_R_CHECK_EXAMPLE_TIMING_THRESHOLD_', '_R_CHECK_EXECUTABLES_', '_R_CHECK_EXECUTABLES_EXCLUSIONS_', '_R_CHECK_FF_CALLS_', '_R_CHECK_FF_DUP_', '_R_CHECK_FORCE_SUGGESTS_', '_R_CHECK_FUTURE_FILE_TIMESTAMPS_', '_R_CHECK_FUTURE_FILE_TIMESTAMPS_LEEWAY_', '_R_CHECK_HAVE_MYSQL_', '_R_CHECK_HAVE_ODBC_', '_R_CHECK_HAVE_PERL_', '_R_CHECK_HAVE_POSTGRES_', '_R_CHECK_INSTALL_DEPENDS_', '_R_CHECK_INTERNALS2_', '_R_CHECK_LENGTH_1_CONDITION_', '_R_CHECK_LICENSE_', '_R_CHECK_LIMIT_CORES_', '_R_CHECK_MATRIX_DATA_', '_R_CHECK_NATIVE_ROUTINE_REGISTRATION_', '_R_CHECK_NEWS_IN_PLAIN_TEXT_', '_R_CHECK_NO_RECOMMENDED_', '_R_CHECK_NO_STOP_ON_TEST_ERROR_', '_R_CHECK_ORPHANED_', '_R_CHECK_OVERWRITE_REGISTERED_S3_METHODS_', '_R_CHECK_PACKAGES_USED_IGNORE_UNUSED_IMPORTS_', '_R_CHECK_PACKAGES_USED_IN_TESTS_USE_SUBDIRS_', '_R_CHECK_PACKAGE_DATASETS_SUPPRESS_NOTES_', '_R_CHECK_PACKAGE_NAME_', '_R_CHECK_PKG_SIZES_', '_R_CHECK_PKG_SIZES_THRESHOLD_', '_R_CHECK_PRAGMAS_', '_R_CHECK_RD_EXAMPLES_T_AND_F_', '_R_CHECK_RD_LINE_WIDTHS_', '_R_CHECK_RD_MATH_RENDERING_', '_R_CHECK_RD_VALIDATE_RD2HTML_', '_R_CHECK_REPLACING_IMPORTS_', '_R_CHECK_R_DEPENDS_', '_R_CHECK_S3_METHODS_SHOW_POSSIBLE_ISSUES_', '_R_CHECK_SCREEN_DEVICE_', '_R_CHECK_SERIALIZATION_', '_R_CHECK_SHLIB_OPENMP_FLAGS_', '_R_CHECK_SRC_MINUS_W_IMPLICIT_', '_R_CHECK_SUBDIRS_NOCASE_', '_R_CHECK_SUBDIRS_STRICT_', '_R_CHECK_SUGGESTS_ONLY_', '_R_CHECK_SYSTEM_CLOCK_', '_R_CHECK_TESTS_NLINES_', '_R_CHECK_TEST_TIMING_', '_R_CHECK_TIMINGS_', '_R_CHECK_TOPLEVEL_FILES_', '_R_CHECK_UNDOC_USE_ALL_NAMES_', '_R_CHECK_UNSAFE_CALLS_', '_R_CHECK_URLS_SHOW_301_STATUS_', '_R_CHECK_VC_DIRS_', '_R_CHECK_VIGNETTES_NLINES_', '_R_CHECK_VIGNETTES_SKIP_RUN_MAYBE_', '_R_CHECK_VIGNETTE_TIMING_', '_R_CHECK_VIGNETTE_TITLES_', '_R_CHECK_WINDOWS_DEVICE_', '_R_CHECK_XREFS_USE_ALIASES_FROM_CRAN_', '_R_CLASS_MATRIX_ARRAY_', '_R_INSTALL_TIME_PATCHES_', '_R_S3_METHOD_LOOKUP_BASEENV_AFTER_GLOBALENV_', '_R_SHLIB_BUILD_OBJECTS_SYMBOL_TABLES_', 'maj.version', 'nextArg--timingsnextArg--install'
 - Environment variables still there: [n=0] 
 - Environment variables missing: [n=1] 'MAKEFLAGS'
Differences environment variable by environment variable:
List of 3
 $ name    : chr "MAKEFLAGS"
 $ expected: 'Dlist' chr ""
 $ actual  : 'Dlist' chr NA
> 
> proc.time()
   user  system elapsed 
   0.79    0.17    9.06