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set testmodule [file normalize tests/modules/fork.so]
proc count_log_message {pattern} {
set status [catch {exec grep -c $pattern < [srv 0 stdout]} result]
if {$status == 1} {
set result 0
}
return $result
}
start_server {tags {"modules"}} {
r module load $testmodule
test {Module fork} {
# the argument to fork.create is the exitcode on termination
# the second argument to fork.create is passed to usleep
r fork.create 3 100000 ;# 100ms
wait_for_condition 20 100 {
[r fork.exitcode] != -1
} else {
fail "fork didn't terminate"
}
r fork.exitcode
} {3}
test {Module fork kill} {
# use a longer time to avoid the child exiting before being killed
r fork.create 3 100000000 ;# 100s
wait_for_condition 20 100 {
[count_log_message "fork child started"] == 2
} else {
fail "fork didn't start"
}
# module fork twice
assert_error {Fork failed} {r fork.create 0 1}
assert {[count_log_message "Can't fork for module: File exists"] eq "1"}
r fork.kill
assert {[count_log_message "Received SIGUSR1 in child"] eq "1"}
# check that it wasn't printed again (the print belong to the previous test)
assert {[count_log_message "fork child exiting"] eq "1"}
}
test "Unload the module - fork" {
assert_equal {OK} [r module unload fork]
}
}
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