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source("incl/start.R")
library("listenv")
message("*** remote() ...")
## No global variables
f <- try(remote({
42L
}, workers = "localhost"), silent = FALSE)
print(f)
stopifnot(inherits(f, "ClusterFuture"))
print(resolved(f))
y <- value(f)
print(y)
stopifnot(y == 42L)
plan(remote, workers = "localhost")
## No global variables
f <- try(future({
42L
}), 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)
message("*** remote() - exceptions ...")
res <- try(remote(42L, workers = TRUE), silent = TRUE)
print(res)
stopifnot(inherits(res, "try-error"))
message("*** remote() - exceptions ... DONE")
message("*** remote() ... DONE")
source("incl/end.R")
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