def seed(self):
lock_file = helpers.get_lock_file(self)
if lock_file:
log.debug('generating tileset')
try:
pid = helpers.seed_process_spawn(self)
lock_file.write("{}\n".format(pid))
res = {'status': 'started'}
except (SeedConfigurationError, ConfigurationError) as e:
log.error(
'Something went wrong when generating.. removing lock file'
)
res = {'status': 'unable to start', 'error': e.message}
finally:
lock_file.flush()
lock_file.close()
helpers.remove_lock_file(self)
else:
log.debug(
'tileset.generate, will NOT generate. already running, pid: {}'
.format(helpers.get_pid_from_lock_file(self)))
res = {'status': 'already started'}
return res
def stop(self):
print '---- tileset.stop'
res = {'status': 'not in progress'}
pid_str = helpers.get_pid_from_lock_file(self.id)
process = helpers.get_process_from_pid(pid_str)
if process:
print '---- tileset.stop, will stop, pid: {}'.format(pid_str)
res = {'status': 'stopped'}
children = process.children()
for c in children:
c.terminate()
process.terminate()
else:
if pid_str == 'preparing_to_start':
res = {'status': 'debug, prevent start!'}
# TODO: prevent it from starting!
print '--- process not running but may be started shortly'
elif helpers.is_int_str(pid_str):
print '---- tileset.stop, process not running but cleaned lck file'
helpers.remove_lock_file(self.id)
return res
def generate(self):
print '---- tileset.generate'
lock_file = helpers.get_lock_file(self.id)
if lock_file:
print '---- tileset.generate, will generate'
try:
pid = helpers.seed_process_spawn(self)
lock_file.write("{}\n".format(pid))
res = {'status': 'started'}
except (SeedConfigurationError, ConfigurationError) as e:
print '--- Something went wrong when generating.. removing lock file'
helpers.remove_lock_file(self.id)
res = {'status': 'unable to start',
'error': e.message}
finally:
lock_file.flush()
lock_file.close()
else:
print '---- tileset.generate, will NOT generate. already running, pid: {}'.format(helpers.get_pid_from_lock_file(self.id))
res = {'status': 'already started'}
return res
def stop(self):
print '---- tileset.stop'
res = {'status': 'not in progress'}
pid_str = helpers.get_pid_from_lock_file(self.id)
process = helpers.get_process_from_pid(pid_str)
if process:
print '---- tileset.stop, will stop, pid: {}'.format(pid_str)
res = {'status': 'stopped'}
children = process.children()
for c in children:
c.terminate()
process.terminate()
else:
if pid_str == 'preparing_to_start':
res = {'status': 'debug, prevent start!'}
# TODO: prevent it from starting!
print '--- process not running but may be started shortly'
elif helpers.is_int_str(pid_str):
print '---- tileset.stop, process not running but cleaned lck file'
helpers.remove_lock_file(self.id)
return res