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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#ifndef _WIN32
#include <poll.h>
#include <unistd.h>
#define SOCKET int
#else
#define poll WSAPoll
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <winsock2.h>
#include <mswsock.h>
#endif
#include "convey.h"
#include "nng.h"
#include "protocol/reqrep0/rep.h"
#include "protocol/reqrep0/req.h"
#include "stubs.h"
#include "supplemental/util/platform.h"
bool
isready(SOCKET fd)
{
struct pollfd pfd;
pfd.fd = fd;
pfd.events = POLLRDNORM;
pfd.revents = 0;
switch (poll(&pfd, 1, 0)) {
case 0:
return (false);
case 1:
return (true);
default:
printf("BAD POLL RETURN!\n");
abort();
}
}
TestMain("REQ pollable", {
atexit(nng_fini);
Convey("Given a REQ/REP pair", {
nng_socket req;
nng_socket rep;
nng_ctx ctx;
So(nng_req0_open(&req) == 0);
So(nng_rep0_open(&rep) == 0);
So(nng_ctx_open(&ctx, req) == 0);
Reset({
nng_ctx_close(ctx);
nng_close(req);
nng_close(rep);
});
So(nng_listen(rep, "inproc://ctx1", NULL, 0) == 0);
Convey("REQ ctx not pollable", {
int fd;
So(nng_ctx_open(&ctx, req) == 0);
Reset({ nng_ctx_close(ctx); });
So(nng_ctx_getopt_int(ctx, NNG_OPT_SENDFD, &fd) ==
NNG_ENOTSUP);
So(nng_ctx_getopt_int(ctx, NNG_OPT_RECVFD, &fd) ==
NNG_ENOTSUP);
});
Convey("REQ starts not writable", {
int fd;
So(nng_getopt_int(req, NNG_OPT_SENDFD, &fd) == 0);
So(isready(fd) == false);
Convey("And becomes writable on connect", {
So(nng_dial(req, "inproc://ctx1", NULL, 0) ==
0);
nng_msleep(100);
So(isready(fd) == true);
Convey("Not writable with message pending", {
for (int i = 0; i < 10; i++) {
nng_msg *m;
So(nng_msg_alloc(&m, 0) == 0);
// Fill intermediate queues.
if (nng_sendmsg(req, m,
NNG_FLAG_NONBLOCK) !=
0) {
nng_msg_free(m);
}
}
So(isready(fd) == false);
});
});
});
Convey("REQ starts not readable", {
int fd;
So(nng_getopt_int(req, NNG_OPT_RECVFD, &fd) == 0);
So(isready(fd) == false);
Convey("And doesn't become readable on connect", {
So(nng_dial(req, "inproc://ctx1", NULL, 0) ==
0);
nng_msleep(100);
So(isready(fd) == false);
});
});
Convey("REQ becomes readable", {
int fd;
nng_msg *msg;
So(nng_dial(req, "inproc://ctx1", NULL, 0) == 0);
So(nng_msg_alloc(&msg, 0) == 0);
So(nng_getopt_int(req, NNG_OPT_RECVFD, &fd) == 0);
So(isready(fd) == false);
So(nng_msg_append(msg, "xyz", 3) == 0);
So(nng_sendmsg(req, msg, 0) == 0);
So(nng_recvmsg(rep, &msg, 0) == 0); // recv on rep
So(nng_sendmsg(rep, msg, 0) == 0); // echo it back
nng_msleep(200); // give time for message to arrive
So(isready(fd) == true);
Convey("And is no longer readable after receive", {
So(nng_recvmsg(req, &msg, 0) == 0);
nng_msg_free(msg);
So(isready(fd) == false);
});
});
});
});
|
