[scheduler]
   cycle point format = %Y%m%dT%H
[scheduling]
    initial cycle point = 20100101T00
    final cycle point   = 20100101T18
    runahead limit = PT18H
    [[special tasks]]
        sequential = "foo"
    [[graph]]
        R1 = monitor:start => foo
        PT6H = foo
[runtime]
    [[foo]]
        script = true
    [[monitor]]
        script = """
        while true; do
            sleep 1
            RUNNING=$(sqlite3 "$CYLC_WORKFLOW_RUN_DIR/log/db" "select count(*) from task_states where name is 'foo' and status is 'running'") || RUNNING=0
            if ((RUNNING>1)); then
                false
            fi
            sleep 1
            FINISHED=$(sqlite3 "$CYLC_WORKFLOW_RUN_DIR/log/db" "select count(*) from task_states where name is 'foo' and status is 'succeeded'") || FINISHED=0
            if ((FINISHED==4)); then
                break
            fi
        done
"""
