#!/usr/bin/env python

# -*- coding:utf-8 -*-

from multiprocessing import Process, Queue

import queue

import threading

def f(qq):

    qq.put("hahaha123")

if __name__ == '__main__':

    #q = queue.Queue() #  线程queue不能直接传给子进程

    q = Queue()

    p = Process(target=f, args=(q,))

    #p = threading.Thread(target=f, args=(q,))

    p.start()

    print(q.get())

    p.join()

#!/usr/bin/env python

# -*- coding:utf-8 -*- 

from multiprocessing import Process, Pipe

def f(conn):

    conn.send("qqqqqq")

    conn.send("qqqqqq2")

    print("from parent:", conn.recv())

    conn.close()

if __name__ == '__main__':

    parent_conn, chile_conn = Pipe()

    p = Process(target=f, args=(chile_conn,))

    p.start()

    print(parent_conn.recv())

    print(parent_conn.recv())

    parent_conn.send("hehehhe")

    p.join()

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author: zhoujunlong
from multiprocessing import Process, Manager
import os
def f(d, l):
    d[os.getpid()] = os.getpid()

    l.append(os.getpid())
    print(l)
if __name__ == '__main__':
    with Manager() as manager:
        d = manager.dict() # 生成一个字典可在多个进程间共享和传递
        l = manager.list()# 生成一个列表可在多个进程间共享和传递
        p_list = []
        for i in range(10):
            p = Process(target=f, args=(d, l,))
            p.start()
            p_list.append(p)
        for res in p_list:# 等待结果
            res.join()
        print(d)
        print(l)

#!/usr/bin/env python

# -*- coding:utf-8 -*-

from multiprocessing import Process,Lock

def f(l, i):

    l.acquire()

    print("hello world", i)

    l.release()

if __name__ == '__main__':

    lock = Lock()

    for num in range(10):

        Process(target=f, args=(lock, num)).start()

#!/usr/bin/env python

# -*- coding:utf-8 -*-

from multiprocessing import Process, Pool, freeze_support

import time, os

def Foo(i):

    time.sleep(2)

    print("in process ", os.getpid())

    return i

def Bar(args):

    print("--->", args, os.getpid())

if __name__ == '__main__':

    #freeze_support()

    pool = Pool(processes=5)

    print("main_process:", os.getpid())

    for i in range(10):

        #pool.apply(func=Foo, args=(i,))

        #pool.apply_async(func=Foo, args=(i,))

        pool.apply_async(func=Foo, args=(i,),callback=Bar)

    print('end')

    pool.close()

    pool.join() #进程池中进程执行完毕后再关闭，注释后程序不等进程执行我那后就直接关闭了

#!/usr/bin/env python
# -*- coding:utf-8 -*-
def consumer(name):
    print("----->starting")
    while True:
        new_baozi = yield
        print("[%s] is eating baozi %s" % (name, new_baozi))
def producer():
    r = con.__next__()
    r = con2.__next__()
    n = 0
    while n < 5:
        n += 1
        print("\033[32;1m[producer]\033[0m is making baozi %s" % n)
        con.send(n) #
        con2.send(n)
if __name__ == '__main__':
    con = consumer("c1")
    con2 = consumer("c2")
    p = producer()

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author: zhoujunlong
from greenlet import greenlet
def test1():
    print(12)
    gr2.switch()
    print(34)
    gr2.switch()
def test2():
    print(56)
    gr1.switch()
    print(78)
    gr1.switch()
gr1 = greenlet(test1)#启动一个协程
gr2 = greenlet(test2)
gr1.switch()

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import  gevent
def foo():
    ")
    gevent.sleep(1) # 模仿IO切换
    ")
def bar():
    ")
    gevent.sleep(0)
    ")
gevent.joinall([
    gevent.spawn(foo),
    gevent.spawn(bar)
])

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author: zhoujunlong
from gevent import monkey
from urllib import request
import gevent
monkey.patch_all() #把当前程序的所有的io操作单独做上标记
def f(url):
    print("Get: %s" % url)
    res = request.urlopen(url)
    data = res.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/")
])

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author: zhoujunlong
import sys
import socket
import time
import gevent
from gevent import socket, monkey
monkey.patch_all()
host = "0.0.0.0"
def server(port):
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.bind((host, port))
    s.listen(500)
    while True:
        conn, addr = s.accept()
        gevent.spawn(handle_request, conn) #前边是函数，后边是函数所需的参数
def handle_request(conn):
    try:
        while True:
            data = conn.recv(1024)
            print("recv:", data.decode())
            conn.send(data)
            if not data:
                conn.shutdown(socket.SHUT_WR)
    except Exception as e:
        print("\033[31;1merr\033[0m", e)
    finally:
        conn.close()
if __name__ == '__main__':
    server(5566)

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author: zhoujunlong
import socket
host = "localhost"
port = 5566
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
while True:
    msg = bytes(input(">>:"), encoding="utf8")
    s.sendall(msg)
    data = s.recv(1024)
    print("Recv:", repr(data))
s.close()

          #!/usr/bin/python

# -*- coding:utf-8 -*-

# Author:zhoujunlong

import select

import socket

import queue

server = socket.socket()

server.setblocking(0)

server_addr = ('localhost',10000)

print('starting up on %s port %s' % server_addr)

server.bind(server_addr)

server.listen(5)

inputs = [server, ] #自己也要监测呀,因为server本身也是个fd

outputs = []

message_queues = {}

while True:

    print("waiting for next event...")

    readable, writeable, exeptional = select.select(inputs,outputs,inputs) #如果没有任何fd就绪,那程序就会一直阻塞在这里

    for s in readable: #每个s就是一个socket

        if s is server: #别忘记,上面我们server自己也当做一个fd放在了inputs列表里,传给了select,如果这个s是server,代表server这个fd就绪了,

            #就是有活动了, 什么情况下它才有活动? 当然 是有新连接进来的时候 呀

            #新连接进来了,接受这个连接

            conn, client_addr = s.accept()

            print("new connection from",client_addr)

            conn.setblocking(0)

            inputs.append(conn) #为了不阻塞整个程序,我们不会立刻在这里开始接收客户端发来的数据, 把它放到inputs里, 下一次loop时,这个新连接

            #就会被交给select去监听,如果这个连接的客户端发来了数据 ,那这个连接的fd在server端就会变成就续的,select就会把这个连接返回,返回到

            #readable 列表里,然后你就可以loop readable列表,取出这个连接,开始接收数据了, 下面就是这么干 的

            message_queues[conn] = queue.Queue() #接收到客户端的数据后,不立刻返回 ,暂存在队列里,以后发送

        else: #s不是server的话,那就只能是一个 与客户端建立的连接的fd了

            #客户端的数据过来了,在这接收

            data = s.recv(1024)

            if data:

                print("收到来自[%s]的数据:" % s.getpeername()[0], data)

                message_queues[s].put(data) #收到的数据先放到queue里,一会返回给客户端

                if s not  in outputs:

                    outputs.append(s) #为了不影响处理与其它客户端的连接 , 这里不立刻返回数据给客户端

            else:#如果收不到data代表什么呢? 代表客户端断开了呀

                print("客户端断开了",s)

                if s in outputs:

                    outputs.remove(s) #清理已断开的连接

                inputs.remove(s) #清理已断开的连接

                del message_queues[s] ##清理已断开的连接

    for s in writeable:

        try :

            next_msg = message_queues[s].get_nowait()

        except queue.Empty:

            print("client [%s]" %s.getpeername()[0], "queue is empty..")

            outputs.remove(s)

        else:

            print("sending msg to [%s]"%s.getpeername()[0], next_msg)

            s.send(next_msg.upper())

    for s in exeptional:

        print("handling exception for ",s.getpeername())

        inputs.remove(s)

        if s in outputs:

            outputs.remove(s)

        s.close()

        del message_queues[s]

import selectors
import socket
sel = selectors.DefaultSelector()
def accept(sock, mask):
    conn, addr = sock.accept()  # Should be ready
    print('accepted', conn, 'from', addr)
    conn.setblocking(False)
    sel.register(conn, selectors.EVENT_READ, read)
def read(conn, mask):
    data = conn.recv(1000)  # Should be ready
    if data:
        print('echoing', repr(data), 'to', conn)
        conn.send(data)  # Hope it won't block
    else:
        print('closing', conn)
        sel.unregister(conn)
        conn.close()
sock = socket.socket()
sock.bind(('localhost', 10000))
sock.listen(100)
sock.setblocking(False)
sel.register(sock, selectors.EVENT_READ, accept)
while True:
    events = sel.select()
    for key, mask in events:
        callback = key.data
        callback(key.fileobj, mask)

import selectors
import socket
sel = selectors.DefaultSelector()
def accept(sock, mask):
    conn, addr = sock.accept()  # Should be ready
    print('accepted', conn, 'from', addr)
    conn.setblocking(False)
    sel.register(conn, selectors.EVENT_READ, read)
def read(conn, mask):
    data = conn.recv(1000)  # Should be ready
    if data:
        print('echoing', repr(data), 'to', conn)
        conn.send(data)  # Hope it won't block
    else:
        print('closing', conn)
        sel.unregister(conn)
        conn.close()
sock = socket.socket()
sock.bind(('localhost', 10000))
sock.listen(100)
sock.setblocking(False)
sel.register(sock, selectors.EVENT_READ, accept)
while True:
    events = sel.select()
    for key, mask in events:
        callback = key.data
        callback(key.fileobj, mask)