Python线程模块threading

Threading.Condition:

import random,time
import threading
from threading import Condition

class Producer(threading.Thread):
    """
    Produces random integers to a list
    """

    def __init__(self, integers, condition):
        """
        Constructor.

        @param integers list of integers
        @param condition condition synchronization object
        """
        threading.Thread.__init__(self)
        self.integers = integers
        self.condition = condition
        print("threading-1 created")

    def run(self):
        """
        Thread run method. Append random integers to the integers list
        at random time.
        """
        while True:
            integer = random.randint(0, 256)
            self.condition.acquire()
            print('condition acquired by %s' % self.name)
            self.integers.append(integer)
            print ('%d appended to list by %s' % (integer, self.name))
            print ('condition notified by %s' % self.name)
            self.condition.notify()
            print( 'condition released by %s' % self.name)
            self.condition.release()
            time.sleep(1)


class Consumer(threading.Thread):
    """
    Consumes random integers from a list
    """

    def __init__(self, integers, condition):
        """
        Constructor.

        @param integers list of integers
        @param condition condition synchronization object
        """
        threading.Thread.__init__(self)
        self.integers = integers
        self.condition = condition
        print("threading-2 created")

    def run(self):
        """
        Thread run method. Consumes integers from list
        """
        while True:
            print("thread2 befor acquire")
            self.condition.acquire()
            print( 'condition acquired by %s' % self.name)
            while True:
                if self.integers:
                    integer = self.integers.pop()
                    print( '%d popped from list by %s' % (integer, self.name))
                    break
                print ('condition wait by %s' % self.name)
                self.condition.wait()
                print("thread2 after wait")
            print ('condition released by %s' % self.name)
            self.condition.release()


def main():
    integers = []
    condition = threading.Condition()
    t1 = Producer(integers, condition)
    t2 = Consumer(integers, condition)
    t1.start()
    print("t1 started")
    t2.start()
    print("t2 started")
    time.sleep(3)
    for i in range(10):
        print("fuck")

    t1.join()
    t2.join()

if __name__ == '__main__':
    main()

 

Threading.Semaphore:

from threading import Thread,Semaphore
import threading,time,random

class t_S_P(Thread):
    def __init__(self,integer,Sema):
        Thread.__init__(self)
        self.integer=integer
        self.Sema=Sema
    def run(self):
        while True:
            a=random.randint(0,100)
            self.integer.append(a)
            print("%d was add to the list by Thread P"%a)
            self.Sema.acquire()

class t_S_C(Thread):
    def __init__(self,integer,Sema):
        Thread.__init__(self)
        self.integer = integer
        self.Sema=Sema
    def run(self):
        while True:
            print("fuck")
            if self.integer:
                p=self.integer.pop()
                print("%d was popped by Thread C"%p)
            self.Sema.release()
            time.sleep(1)

if __name__=="__main__":
    integer=[]
    Sema=Semaphore()
    p=t_S_P(integer,Sema)
    c=t_S_C(integer,Sema)
    p.start()
    c.start()
    p.join()
    c.join()

Threading.Barrier:

import threading,random
from threading import Barrier,Thread
from threading import Condition,Lock

class Barrier_sum(Barrier):
    def __init__(self, parties, action=None, timeout=None):
        super().__init__(parties,action=action,timeout=timeout)
        self.args = (0, 0, 0)

    def _release(self):
        try:
            if self._action:
                self._action(*self.args)
            # enter draining state
            self._state = 1
            self._cond.notify_all()
        except:
            # an exception during the _action handler.  Break and reraise
            self._break()
            raise

class t_B(Thread):
    def __init__(self,barrier,d_list):
        Thread.__init__(self)
        self.barrier=barrier
        self.d_list=d_list
    def run(self):
        #integer=random.randint(0,10)
        l_integer=random.randint(0,2)
        self.d_list[l_integer] =self.d_list[l_integer]+1
        print(self.d_list)
        self.barrier.args=(self.d_list[0],self.d_list[1],self.d_list[2])
        self.barrier.wait()
        print("%d quite"%threading.get_ident())

if __name__=="__main__":
    def fuck(a,b,c):
        print("sum value is %d"%(a+b+c))
        return a+b+c

    b_list = [1, 2, 3]
    t_list=[]
    barrier=Barrier_sum(3,action=fuck)

    for i in range(36):
        t_list.append(t_B(barrier,b_list))
    for b in t_list:
        b.start()
    for b in t_list:
        b.join()

Threading.Event:

from threading import Event
from threading import Thread
import random,time
class t_E_P(Thread):
    def __init__(self,integer,event):
        Thread.__init__(self)
        self.integer=integer
        self.event=event
    def run(self):
        while True:
            a=random.randint(0,100)
            self.integer.append(a)
            print("%d was add to the list by Thread P"%a)
            self.event.set()
            self.event.clear()
            print("cleared by Thread P now,flase")
            time.sleep(1)

class t_E_C(Thread):
    def __init__(self,integer,event):
        Thread.__init__(self)
        self.integer = integer
        self.event = event
    def run(self):
        while True:
            print("fuck")
            if self.integer:
                p=self.integer.pop()
                print("%d was popped by Thread C"%p)
            self.event.wait()

if __name__=="__main__":
    integer=[]
    event=Event()
    p=t_E_P(integer,event)
    c=t_E_C(integer,event)
    p.start()
    c.start()
    p.join()
    c.join()

Queue:

from queue import Queue
from threading import Thread
import random,time

class Procuder(Thread):
    def __init__(self,queue):
        Thread.__init__(self)
        self.queue=queue
        self.i=50
    def run(self):
        while self.i>0:
            value=random.randint(0,10)
            self.queue.put(value)
            print("%d was put in to "%value)
            #print("all been get")
            self.i-=1
        self.queue.join()
        print("thread p done")


class Consumer(Thread):
    def __init__(self, queue):
        Thread.__init__(self)
        self.queue = queue

    def run(self):
        while True:
            value=self.queue.get()
            time.sleep(0.005)
            print("%d get "%value)
            #print("unfinished %d"%self.queue.unfinished_tasks)
            self.queue.task_done()
            if self.queue.unfinished_tasks==0:
                #print("fuck")
                break


if __name__=="__main__":
    q=Queue()
    p=Procuder(q)
    c=Consumer(q)
    p.start()
    c.start()