def start(request,id):
"""Starts a service running in the background"""
if request.method == 'POST':
form = ServiceStartForm(request.POST)
if form.is_valid():
print "Handling a valid form"
service_id = form.cleaned_data['serviceChoice']
input_dir = form.cleaned_data['input_directory']
output_dir = form.cleaned_data['output_directory']
aEntry = Service.objects.get(pk=service_id)
aServiceRun = ServiceRun(service=aEntry, inputParams=input_dir, outputParams=output_dir)
aServiceRun.save()
# elevate permissions in order to run
subprocess.call(["chmod", "a+x", aServiceRun.service.location])
process = subprocess.Popen(aServiceRun.service.location, shell=False)
# process = subprocess.Popen("mvim", shell=False)
# process = subprocess.Popen("mvim", shell=False, preexec_fn=os.setpgrp) #preexec_fn=os.setpgrp
print 'process id of service is: %s', process.pid
aServiceRun.status="RUNNING"
aServiceRun.pid = process.pid
aServiceRun.save()
# Add to the hashtable
ProcessManager.get_instance().set_process(aServiceRun.pid, process)
print ProcessManager.get_process_dict()
messages.add_message(request, messages.SUCCESS, 'Successfully Started')
return HttpResponseRedirect('/service/')
else:
form = ServiceStartForm()
print "Invalid form, not a POST request"
return render(request, 'service/start.html', locals())
def stop(request, id):
"""Stops a service"""
runningService = ServiceRun.objects.get(pk=id)
# ret = subprocess.call(["kill", "-9", "%d" % runningService.pid])
# ret = os.killpg(runningService.pid, signal.SIGTERM)
process = ProcessManager.get_instance().get_process(runningService.pid)
# Kill the process
p = process.terminate()
process.wait()
x = process.poll()
ret = process.returncode
if ret is not None:
runningService.pid = -1
runningService.status = "STOPPED"
runningService.save()
messages.add_message(request, messages.SUCCESS, 'Service Successfully Stopped')
else:
messages.add_message(request, messages.ERROR, 'Cant stop the service check the logs')
all_services = Service.objects.all()
running_services = ServiceRun.objects.all().filter(status="RUNNING")
return render(request, 'service/index.html', locals())
