def master(x, ibm_cos):
obj = COSBackend(config=ibm_cos)
def order(e):
return e['LastModified']
write_permission_list = []
m = []
finish = 0
obj.put_object('practise2', 'result.json', json.dumps(m))
l = obj.list_objects('practise2', 'p_write')
while (not finish):
l.sort(key=order)
current_id = l.pop(0)
current_id = current_id['Key']
file_to_write = current_id[2:]
date_json = obj.list_objects('practise2',
'result.json')[0]['LastModified']
obj.put_object('practise2', file_to_write, "")
obj.delete_object('practise2', "p_" + file_to_write)
write_permission_list.append(int(file_to_write[7:-1]))
next = 0
while (not next):
time.sleep(X / 4)
if (not obj.list_objects('practise2',
'result.json')[0]['LastModified']
== date_json):
next = 1
obj.delete_object('practise2', file_to_write)
time.sleep(X)
l = obj.list_objects('practise2', 'p_write')
if (not l):
finish = 1
return write_permission_list
def slave(id, x, ibm_cos):
obj = COSBackend(config=ibm_cos)
obj.put_object('practise2', "p_write_{" + str(id) + "}", b"")
my_turn = 0
while (not my_turn):
time.sleep(X)
if (obj.list_objects('practise2', 'write_{' + str(id) + '}')):
my_turn = 1
result_file = json.loads(obj.get_object('practise2', 'result.json'))
result_file.append(id)
obj.put_object('practise2', 'result.json', json.dumps(result_file))