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test_that("tree ids are inherited", {
skip_on_cran()
skip_if_no_ps()
px <- get_tool("px")
p <- process$new(px, c("sleep", "10"))
on.exit(p$kill(), add = TRUE)
ep <- ps::ps_handle(p$get_pid())
ev <- paste0("PROCESSX_", get_private(p)$tree_id)
## On Windows, if the process hasn't been initialized yet,
## this will return ERROR_PARTIAL_COPY (System error 299).
## Until this is fixed in ps, we just retry a couple of times.
env <- "failed"
deadline <- Sys.time() + 3
while (TRUE) {
if (Sys.time() >= deadline) break
tryCatch({
env <- ps::ps_environ(ep)[[ev]]
break },
error = function(e) e)
Sys.sleep(0.05)
}
expect_true(Sys.time() < deadline)
expect_equal(env, "YES")
})
test_that("tree ids are inherited if env is specified", {
skip_on_cran()
skip_if_no_ps()
px <- get_tool("px")
p <- process$new(px, c("sleep", "10"), env = c(FOO = "bar"))
on.exit(p$kill(), add = TRUE)
ep <- ps::ps_handle(p$get_pid())
ev <- paste0("PROCESSX_", get_private(p)$tree_id)
## On Windows, if the process hasn't been initialized yet,
## this will return ERROR_PARTIAL_COPY (System error 299).
## Until this is fixed in ps, we just retry a couple of times.
env <- "failed"
deadline <- Sys.time() + 3
while (TRUE) {
if (Sys.time() >= deadline) break
tryCatch({
env <- ps::ps_environ(ep)[[ev]]
break },
error = function(e) e)
Sys.sleep(0.05)
}
expect_true(Sys.time() < deadline)
expect_equal(ps::ps_environ(ep)[[ev]], "YES")
expect_equal(ps::ps_environ(ep)[["FOO"]], "bar")
})
test_that("kill_tree", {
skip_on_cran()
skip_if_no_ps()
px <- get_tool("px")
p <- process$new(px, c("sleep", "100"))
on.exit(p$kill(), add = TRUE)
res <- p$kill_tree()
expect_true(any(c("px", "px.exe") %in% names(res)))
expect_true(p$get_pid() %in% res)
deadline <- Sys.time() + 1
while (p$is_alive() && Sys.time() < deadline) Sys.sleep(0.05)
expect_true(Sys.time() < deadline)
expect_false(p$is_alive())
})
test_that("kill_tree with children", {
skip_on_cran()
skip_if_no_ps()
# temporarily
if (getRversion() >= "4.0.0" && is_windows()) {
skip("Fails on Windows & new R")
}
tmp <- tempfile()
on.exit(unlink(tmp), add = TRUE)
p <- callr::r_bg(
function(px, tmp) {
processx::run(px, c("outln", "ok", "sleep", "100"),
stdout_callback = function(x, p) cat(x, file = tmp, append = TRUE))
},
args = list(px = get_tool("px"), tmp = tmp)
)
deadline <- Sys.time() + 5
while (!file.exists(tmp) && Sys.time() < deadline) Sys.sleep(0.05)
expect_true(Sys.time() < deadline)
res <- p$kill_tree()
expect_true(any(c("px", "px.exe") %in% names(res)))
expect_true(any(c("R", "Rterm.exe") %in% names(res)))
expect_true(p$get_pid() %in% res)
deadline <- Sys.time() + 1
while (p$is_alive() && Sys.time() < deadline) Sys.sleep(0.05)
expect_true(Sys.time() < deadline)
expect_false(p$is_alive())
})
test_that("kill_tree and orphaned children", {
skip_on_cran()
skip_if_no_ps()
tmp <- tempfile()
on.exit(unlink(tmp), add = TRUE)
p1 <- callr::r_bg(
function(px, tmp) {
p <- processx::process$new(px, c("outln", "ok", "sleep", "100"),
stdout = tmp, cleanup = FALSE)
list(pid = p$get_pid(), create_time = p$get_start_time(),
id = p$.__enclos_env__$private$tree_id)
},
args = list(px = get_tool("px"), tmp = tmp)
)
p1$wait()
pres <- p1$get_result()
ps <- ps::ps_handle(pres$pid)
expect_true(ps::ps_is_running(ps))
deadline <- Sys.time() + 2
while ((!file.exists(tmp) || file_size(tmp) == 0) &&
Sys.time() < deadline) Sys.sleep(0.05)
expect_true(Sys.time() < deadline)
res <- p1$kill_tree(pres$id)
expect_true(any(c("px", "px.exe") %in% names(res)))
deadline <- Sys.time() + 1
while (ps::ps_is_running(ps) && Sys.time() < deadline) Sys.sleep(0.05)
expect_true(Sys.time() < deadline)
expect_false(ps::ps_is_running(ps))
})
test_that("cleanup_tree option", {
skip_on_cran()
skip_if_no_ps()
px <- get_tool("px")
p <- process$new(px, c("sleep", "100"), cleanup_tree = TRUE)
on.exit(try(p$kill(), silent = TRUE), add = TRUE)
ps <- p$as_ps_handle()
rm(p)
gc()
gc()
deadline <- Sys.time() + 1
while (ps::ps_is_running(ps) && Sys.time() < deadline) Sys.sleep(0.05)
expect_true(Sys.time() < deadline)
expect_false(ps::ps_is_running(ps))
})
test_that("cleanup_tree stress test", {
skip_on_cran()
skip_if_no_ps()
do <- function() {
px <- get_tool("px")
p <- process$new(px, c("sleep", "100"), cleanup_tree = TRUE)
on.exit(try(p$kill(), silent = TRUE), add = TRUE)
ps <- p$as_ps_handle()
rm(p)
gc()
gc()
deadline <- Sys.time() + 1
while (ps::ps_is_running(ps) && Sys.time() < deadline) Sys.sleep(0.05)
expect_true(Sys.time() < deadline)
expect_false(ps::ps_is_running(ps))
}
for (i in 1:50) do()
})
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