1 #!/usr/bin/python
2 import multiprocessing,time
3
4 def A(cond):
5 name=multiprocessing.current_process().name
6 print "starting",name
7 with cond:
8 print "%s is done and next is ready"%name
9 cond.notify_all()
10
11 def B(cond):
12 name=multiprocessing.current_process().name
13 print "starting",name
14 with cond:
15 cond.wait()
16 print "%s running..."%name
17
18 cond=multiprocessing.Condition()
19 m=multiprocessing.Process(target=A,args=(cond,))
20 n=[multiprocessing.Process(target=B,name="Process2[%d]"%i,args=(cond,)) for i in range(1,3)]
21 for i in n:
22 i.start()
23 time.sleep(2)
24
25 m.start()
26 m.join()
27 for i in n:
28 i.join()
