#!/usr/bin/env python
# -*- coding:utf-8 -*-
import threading
import time
def show(arg):
time.sleep(1)
print 'thread'+str(arg)
for i in range(10):
t = threading.Thread(target=show, args=(i,))
t.start()
print 'main thread stop 

import threading
import time
gl_num = 0
def show(arg):
global gl_num
time.sleep(1)
gl_num +=1
print gl_num
for i in range(10):
t = threading.Thread(target=show, args=(i,))
t.start()

print 'main thread stop' 

import threading
import time
gl_num = 0
lock = threading.RLock()
def Func():
lock.acquire()
global gl_num
gl_num +=1
time.sleep(1)
print gl_num
lock.release()
for i in range(10):
t = threading.Thread(target=Func)
t.start() 

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import threading
def do(event):
print 'start'
event.wait()
print 'execute'
event_obj = threading.Event()
for i in range(10):
t = threading.Thread(target=do, args=(event_obj,))
t.start()
event_obj.clear()
inp = raw_input('input:')
if inp == 'true':
event_obj.set() 

from multiprocessing import Process
import threading
import time
def foo(i):
print 'say hi',i
for i in range(10):
p = Process(target=foo,args=(i,))
p.start() 

#!/usr/bin/env python
#coding:utf-8
from multiprocessing import Process
from multiprocessing import Manager
import time
li = []
def foo(i):
li.append(i)
print 'say hi',li
for i in range(10):
p = Process(target=foo,args=(i,))
p.start()
print ('ending',li) 

from multiprocessing import Process,Array
temp = Array('i', [11,22,33,44])
def Foo(i):
temp[i] = 100+i
for item in temp:
print i,'----->',item
for i in range(2):
p = Process(target=Foo,args=(i,))
p.start()

from multiprocessing import Process,Manager
manage = Manager()
dic = manage.dict()
def Foo(i):
dic[i] = 100+i
print dic.values()
for i in range(2):
p = Process(target=Foo,args=(i,))
p.start()
p.join() 
'c': ctypes.c_char, 'u': ctypes.c_wchar,
'b': ctypes.c_byte, 'B': ctypes.c_ubyte,
'h': ctypes.c_short, 'H': ctypes.c_ushort,
'i': ctypes.c_int, 'I': ctypes.c_uint,
'l': ctypes.c_long, 'L': ctypes.c_ulong,
'f': ctypes.c_float, 'd': ctypes.c_double 

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from multiprocessing import Process, Array, RLock
def Foo(lock,temp,i):
"""
将第0个数加100
"""
lock.acquire()
temp[0] = 100+i
for item in temp:
print i,'----->',item
lock.release()
lock = RLock()
temp = Array('i', [11, 22, 33, 44])
for i in range(20):
p = Process(target=Foo,args=(lock,temp,i,))
p.start() 

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from multiprocessing import Process,Pool
import time
def Foo(i):
time.sleep(2)
return i+100
def Bar(arg):
print arg
pool = Pool(5)
#print pool.apply(Foo,(1,))
#print pool.apply_async(func =Foo, args=(1,)).get()
for i in range(10):
pool.apply_async(func=Foo, args=(i,),callback=Bar)
print 'end'
pool.close()

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from greenlet import greenlet
def test1():
print 12
gr2.switch()
print 34
gr2.switch()
def test2():
print 56
gr1.switch()
print 78
gr1 = greenlet(test1)
gr2 = greenlet(test2)
gr1.switch() 

import gevent
def foo():
print('Running in foo')
gevent.sleep(0)
print('Explicit context switch to foo again')
def bar():
print('Explicit context to bar')
gevent.sleep(0)
print('Implicit context switch back to bar')
gevent.joinall([
gevent.spawn(foo),
gevent.spawn(bar),
]) 

from gevent import monkey; monkey.patch_all()
import gevent
import urllib2
def f(url):
print('GET: %s' % url)
resp = urllib2.urlopen(url)
data = resp.read()
print('%d bytes received from %s.' % (len(data), url))
gevent.joinall([
gevent.spawn(f, 'https://www.python.org/'),
gevent.spawn(f, 'https://www.yahoo.com/'),
gevent.spawn(f, 'https://github.com/'),
])