I am a python newbie, very interested in raspberry pi and while I was crusading the code I had one idea, tried a lot of ways to make it but with no success.
I'm using this python script to get data from a gps receiver and send it to a database:
#! /usr/bin/python import os from gps import * from time import * import time import threading import MySQLdb import re conn = MySQLdb.connect(host= "localhost", user="root", passwd="root", db="gps") gpsd = None #seting the global variable os.system('clear') #clear the terminal (optional) time_to_use = strftime("%Y_%m_%d-%H_%M_%S", gmtime()) time_to_use = "track_"+time_to_use class GpsPoller(threading.Thread): def __init__(self): threading.Thread.__init__(self) global gpsd #bring it in scope gpsd = gps(mode=WATCH_ENABLE) #starting the stream of info self.current_value = None self.running = True #setting the thread running to true self.time = time.time(); def run(self): global gpsd while gpsp.running: gpsd.next() if __name__ == '__main__': gpsp = GpsPoller() try: gpsp.start() while True: if gpsd.fix.mode>1: x = conn.cursor() # print gpsd.status # print 'mode ' , gpsd.fix.mode try: x.execute("""INSERT INTO raw_data (`data`, `date`, `track`) VALUES (%s, CURRENT_TIMESTAMP, %s)""",(gpsd, time_to_use)) conn.commit() except: conn.rollback() print 'error on mysql query' time.sleep(5) #set to whatever except (KeyboardInterrupt, SystemExit): #when you press ctrl+c print "\nKilling Thread..." conn.close() gpsp.running = False gpsp.join() # wait for the thread to finish what it's doing print "Done.\nExiting." exit(0)
I want to start and stop the script from an php file, already tried the next script, but it wont work, the python won't execute.
shell_exec('sudo python /var/www/gpsc.py > /dev/null &');
Can someone help me achieve the expected functionality?
I just want to call start.php and stop.php to start and stop the recording from the gps.