Python Study, multiprocessing example source code

__author__ = 'mare'

from multiprocessing import Process, Lock, Value
import time

def run(name, l, c):
    print( name, 'process is created.')
    fixed = 0
    while 1:


        if c.value>0:
            c.value -= 1
            fixed += 1
            print(name, 'fixed', fixed, 'defects')

if __name__=='__main__':
    lock = Lock()
    count = Value('i', 10)

dev_list = []
for name in ['Mare1', 'Mare2', 'Mare3']:
    dev = Process( target=run, args=(name, lock, count))

for dev in dev_list:
    print('All processes are finished.')

#out put is..
Mare1 process is created.
Mare2 process is created.
Mare3 process is created.
Mare2 fixed 3 defects
Mare3 fixed 3 defects
Mare1 fixed 4 defects
All processes are finished.
All processes are finished.
All processes are finished.


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

Image warping (using opencv findHomography, warpPerspective)

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