How to use the uwsgi.signal function in uWSGI

def application(e, s):
    s('200 OK', [('Content-Type', 'text/html')])
    if e['PATH_INFO'] == '/30':
        uwsgi.signal(30)
        uwsgi.signal(100)
    else:
        uwsgi.signal(17)
    return "Signal raised"

import uwsgi

# send a raw signal to register with file_monitor subsystem
# uwsgi.signal(10, "/tmp/topolino")
uwsgi.signal(10, "/tmp")
# uwsgi.signal(10, "/root")

# send a raw signal to register with timer subsystem
uwsgi.signal(11, "3")
uwsgi.signal(11, "4")
uwsgi.signal(11, "8")


def application(e, s):
        s('200 Ok', [('Content-Type', 'text/html')])
        return "<h1>Hello World</h1>"

def mess():
    while True:
        for i in xrange(0, 100):
            if uwsgi.ready():
                uwsgi.signal(17)
            print(i)
            time.sleep(0.1)

def application(e, s):
    s('200 OK', [('Content-Type', 'text/html')])
    if e['PATH_INFO'] == '/30':
        uwsgi.signal(30)
        uwsgi.signal(100)
    else:
        uwsgi.signal(17)
    return "Signal raised"

import uwsgi

# send a raw signal to register with file_monitor subsystem
# uwsgi.signal(10, "/tmp/topolino")
uwsgi.signal(10, "/tmp")
# uwsgi.signal(10, "/root")

# send a raw signal to register with timer subsystem
uwsgi.signal(11, "3")
uwsgi.signal(11, "4")
uwsgi.signal(11, "8")


def application(e, s):
        s('200 Ok', [('Content-Type', 'text/html')])
        return "<h1>Hello World</h1>"

def bg_task():
    for i in range(1, 10):
        print "background task", i
        gevent.sleep(1)

    # task ended raise a signal !!!
    uwsgi.signal(17)

import uwsgi

# send a raw signal to register with file_monitor subsystem
# uwsgi.signal(10, "/tmp/topolino")
uwsgi.signal(10, "/tmp")
# uwsgi.signal(10, "/root")

# send a raw signal to register with timer subsystem
uwsgi.signal(11, "3")
uwsgi.signal(11, "4")
uwsgi.signal(11, "8")


def application(e, s):
        s('200 Ok', [('Content-Type', 'text/html')])
        return "<h1>Hello World</h1>"

def sig():
    try:
        uwsgi.signal(int(request.form['signum']))
        flash("uwsgi signal sent")
    except:
        flash("unable to send signal")
    return redirect(url_for('index'))

def controlled_arguments_task(*args, **kwargs):
    if args != ({'key': 'value'}, 2) or kwargs != {'key1': 'value1'}:
        print("We have a problem!")
        open(ghostpath, 'w').close()
    uwsgi.signal(20)