Python Study, Threading example source code

#Thread.start() //thread start
#Thread.run()   //thread main function run
#Thread.join([timeout]) //wait until thread end


from threading import Thread, Lock
import time

count = 10
lock = Lock()



class developer(Thread):

    def __init__(self, name):   #initialize
        Thread.__init__(self)
        self.name = name
        self.fixed = 0

    def run(self):              #thread main function


        global count
        while 1:
            #lock.acquire()      #lock  -> Untie comment, error occurs, I don't know why error occurs...
            if count > 0:
                count -= 1
                #lock.rlease()   #unlock -> Untie comment, error occurs, I don't know why error occurs...
                self.fixed += 1
                time.sleep(0.1)
            else:
                #lock.release()  #unlock -> Untie comment, error occurs, I don't know why error occurs...
                break




dev_list = []
for name in ['Mare1', 'Mare2', 'Mare3']:
    dev = developer(name)       #create thread
    dev_list.append(dev)
    dev.start()                 #thread start


for dev in dev_list:
    dev.join()                  #wait
    print(dev.name, 'fixed', dev.fixed)


#Mare1 fixed 3
#Mare2 fixed 4
#Mare3 fixed 3

Comments

Popular posts from this blog

(OpenCV Study) Background subtractor MOG, MOG2, GMG example source code (BackgroundSubtractorMOG, BackgroundSubtractorMOG2, BackgroundSubtractorGMG)

OpenCV Stitching example (Stitcher class, Panorama)

AMP dose run on my pc?, AMP(Accelerated Massive Parallelism)

Example source code of extract HOG feature from images, save descriptor values to xml file, using opencv (using HOGDescriptor )

Optical Flow sample source code using OpenCV

Real-time N camera stitching Class.

OpenCV meanShiftFiltering example source code ( cpu: pyrMeanShiftFiltering, gpu:meanShiftFiltering, gpu:meanShiftSegmentation )

8 point algorithm (Matlab source code) / The method to get the Fundamental Matrix and the Essential matrix

Video Stabilization example source code, (using cvFindHomography, cvWarpPerspective functions in openCV)

Image warping (using opencv findHomography, warpPerspective)