APUE Learning Example Source Code
guowenxue
2019-06-26 157be0b0d4c7d4809cfcafc76235cc18388378c8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
#!/usr/bin/env python3
 
# Test whether a client responds correctly when sending multiple PUBLISH with
# QoS 2, with the broker rejecting the first PUBLISH by setting the reason code
# in PUBACK to >= 0x80.
 
from mosq_test_helper import *
 
port = mosq_test.get_lib_port()
 
rc = 1
keepalive = 60
connect_packet = mosq_test.gen_connect("publish-qos2-test", keepalive=keepalive, proto_ver=5)
 
props = mqtt5_props.gen_uint16_prop(mqtt5_props.PROP_RECEIVE_MAXIMUM, 1)
connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5, properties=props)
 
disconnect_packet = mosq_test.gen_disconnect(proto_ver=5)
 
mid = 1
publish_1_packet = mosq_test.gen_publish("topic", qos=2, mid=mid, payload="rejected", proto_ver=5)
pubrec_1_packet = mosq_test.gen_pubrec(mid, proto_ver=5, reason_code=0x80)
 
mid = 2
publish_2_packet = mosq_test.gen_publish("topic", qos=2, mid=mid, payload="accepted", proto_ver=5)
pubrec_2_packet = mosq_test.gen_pubrec(mid, proto_ver=5)
pubrel_2_packet = mosq_test.gen_pubrel(mid, proto_ver=5)
pubcomp_2_packet = mosq_test.gen_pubcomp(mid, proto_ver=5)
 
disconnect_packet = mosq_test.gen_disconnect(proto_ver=5)
 
 
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.settimeout(10)
sock.bind(('', port))
sock.listen(5)
 
 
client_args = sys.argv[1:]
env = dict(os.environ)
env['LD_LIBRARY_PATH'] = '../../lib:../../lib/cpp'
try:
    pp = env['PYTHONPATH']
except KeyError:
    pp = ''
env['PYTHONPATH'] = '../../lib/python:'+pp
client = mosq_test.start_client(filename=sys.argv[1].replace('/', '-'), cmd=client_args, env=env, port=port)
 
 
try:
    (conn, address) = sock.accept()
    conn.settimeout(10)
 
    if mosq_test.expect_packet(conn, "connect", connect_packet):
        conn.send(connack_packet)
 
        if mosq_test.expect_packet(conn, "publish 1", publish_1_packet):
                conn.send(pubrec_1_packet)
 
                if mosq_test.expect_packet(conn, "publish 2", publish_2_packet):
                    conn.send(pubrec_2_packet)
 
                    if mosq_test.expect_packet(conn, "pubrel 2", pubrel_2_packet):
                        conn.send(pubcomp_2_packet)
                        rc = 0
 
    conn.close()
finally:
    for i in range(0, 5):
        if client.returncode != None:
            break
        time.sleep(0.1)
 
    try:
        client.terminate()
    except OSError:
        pass
 
    client.wait()
    sock.close()
    if client.returncode != 0:
        exit(1)
 
exit(rc)