Help! Multi thread problems

[tq00oqi]

import appuifw, thread, e32, os

t1,t2=0,0

def a():
global t1
t1=os.getpid()
while True:
print "thanks"

def b():
global t2
t2=os.getpid()
while True:
print "abc"

def start():
thread.start_new_thread(a,())
thread.start_new_thread(b,())


def stop():
os.popen("kill -9 "+str(t1))

appuifw.app.menu=[(u"Start", start),
(u"stop", stop)]

app_lock = e32.Ao_lock()
app_lock.wait()

here is an example code which simply starts two thread a() and b() when you select start from the menu, and stop a() when you select stop from the menu. However, my problem is how can I kill thread a(). Functions like os.kill,os.popen etc are just not available in pys60. Any ideas? It doesn't seem to be a difficult problem but i just can't find the answer on the web.

[sajisoft]

Quite easy.Just put a condition variable .Try something like this:

import appuifw, thread, e32, os

t1,t2=0,0
running_a = 1
running_b = 1
def a():
    global t1, running_a
    t1=os.getpid()
    while running_a == 1:
        print "thanks"

def b():
    global t2, running_b
    t2=os.getpid()
    while running_b == 1:
        print "abc"
    
def start():
    thread.start_new_thread(a,())
    thread.start_new_thread(b,())
    
    
def stop():
    global running_a, running_b
    running_a = 0 //exits the thread a
    running_b = 0 //exits the thread b

appuifw.app.menu=[(u"Start", start),
                  (u"stop", stop)]

app_lock = e32.Ao_lock()
app_lock.wait()

Thats it. Hope it helps u..

Best Regards,
SajiSoft

[tq00oqi]

Quite easy.Just put a condition variable .Try something like this:

import appuifw, thread, e32, os

t1,t2=0,0
running_a = 1
running_b = 1
def a():
    global t1, running_a
    t1=os.getpid()
    while running_a == 1:
        print "thanks"

def b():
    global t2, running_b
    t2=os.getpid()
    while running_b == 1:
        print "abc"
    
def start():
    thread.start_new_thread(a,())
    thread.start_new_thread(b,())
    
    
def stop():
    global running_a, running_b
    running_a = 0 //exits the thread a
    running_b = 0 //exits the thread b

appuifw.app.menu=[(u"Start", start),
                  (u"stop", stop)]

app_lock = e32.Ao_lock()
app_lock.wait()

Thats it. Hope it helps u..

Best Regards,
SajiSoft

Wow, you really solved my problem. You also remind me my concurrency lesson in the uni. Thank you very much.