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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
//
// Copyright 2016 Garrett D'Amore <garrett@damore.org>
//
// 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.
//
#include "core/nng_impl.h"
#include <string.h>
int
nni_setopt_duration(nni_duration *ptr, const void *val, size_t size)
{
nni_duration dur;
if (size != sizeof (*ptr)) {
return (NNG_EINVAL);
}
memcpy(&dur, val, sizeof (dur));
if (dur < -1) {
return (NNG_EINVAL);
}
*ptr = dur;
return (0);
}
int
nni_setopt_int(int *ptr, const void *val, size_t size, int minval, int maxval)
{
int v;
if (size != sizeof (v)) {
return (NNG_EINVAL);
}
memcpy(&v, val, sizeof (v));
if (v > maxval) {
return (NNG_EINVAL);
}
if (v < minval) {
return (NNG_EINVAL);
}
*ptr = v;
return (0);
}
int
nni_getopt_duration(nni_duration *ptr, void *val, size_t *sizep)
{
size_t sz = sizeof (*ptr);
if (sz > *sizep) {
sz = *sizep;
}
*sizep = sizeof (*ptr);
memcpy(val, ptr, sz);
return (0);
}
int
nni_getopt_int(int *ptr, void *val, size_t *sizep)
{
size_t sz = sizeof (*ptr);
if (sz > *sizep) {
sz = *sizep;
}
*sizep = sizeof (*ptr);
memcpy(val, ptr, sz);
return (0);
}
int
nni_setopt_buf(nni_msgq *mq, const void *val, size_t sz)
{
int len;
if (sz < sizeof (len)) {
return (NNG_EINVAL);
}
memcpy(&len, val, sizeof (len));
if (len < 0) {
return (NNG_EINVAL);
}
if (len > 8192) {
// put a reasonable uppper limit on queue depth.
// This is a count in messages, so the total queue
// size could be quite large indeed in this case.
return (NNG_EINVAL);
}
return (nni_msgq_resize(mq, len));
}
int
nni_getopt_buf(nni_msgq *mq, void *val, size_t *sizep)
{
int len = nni_msgq_cap(mq);
size_t sz = *sizep;
if (sz > sizeof (len)) {
sz = sizeof (len);
}
memcpy(val, &len, sz);
*sizep = sizeof (len);
return (0);
}
static void
nni_notifyfd_push(struct nng_event *ev, void *arg)
{
nni_notifyfd *fd = arg;
NNI_ARG_UNUSED(ev);
nni_plat_pipe_raise(fd->sn_wfd);
}
int
nni_getopt_fd(nni_sock *s, nni_notifyfd *fd, int mask, void *val, size_t *szp)
{
int rv;
if ((*szp < sizeof (int))) {
return (NNG_EINVAL);
}
switch (mask) {
case NNG_EV_CAN_SEND:
if ((s->s_flags & NNI_PROTO_FLAG_SEND) == 0) {
return (NNG_ENOTSUP);
}
break;
case NNG_EV_CAN_RECV:
if ((s->s_flags & NNI_PROTO_FLAG_RECV) == 0) {
return (NNG_ENOTSUP);
}
break;
default:
return (NNG_ENOTSUP);
}
// If we already inited this, just give back the same file descriptor.
if (fd->sn_init) {
memcpy(val, &fd->sn_rfd, sizeof (int));
*szp = sizeof (int);
return (0);
}
if ((rv = nni_plat_pipe_open(&fd->sn_wfd, &fd->sn_rfd)) != 0) {
return (rv);
}
if (nni_add_notify(s, mask, nni_notifyfd_push, fd) == NULL) {
nni_plat_pipe_close(fd->sn_wfd, fd->sn_rfd);
return (NNG_ENOMEM);
}
*szp = sizeof (int);
memcpy(val, &fd->sn_rfd, sizeof (int));
return (0);
}
|
