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
|
/*
Copyright (c) 2007-2010 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#include "xdr-generic.h"
ssize_t
xdr_serialize_generic (struct iovec outmsg, void *res, xdrproc_t proc)
{
ssize_t ret = -1;
XDR xdr;
if ((!outmsg.iov_base) || (!res) || (!proc))
return -1;
xdrmem_create (&xdr, outmsg.iov_base, (unsigned int)outmsg.iov_len,
XDR_ENCODE);
if (!proc (&xdr, res)) {
ret = -1;
goto ret;
}
ret = xdr_encoded_length (xdr);
ret:
return ret;
}
ssize_t
xdr_to_generic (struct iovec inmsg, void *args, xdrproc_t proc)
{
XDR xdr;
ssize_t ret = -1;
if ((!inmsg.iov_base) || (!args) || (!proc))
return -1;
xdrmem_create (&xdr, inmsg.iov_base, (unsigned int)inmsg.iov_len,
XDR_DECODE);
if (!proc (&xdr, args)) {
ret = -1;
goto ret;
}
ret = xdr_decoded_length (xdr);
ret:
return ret;
}
ssize_t
xdr_to_generic_payload (struct iovec inmsg, void *args, xdrproc_t proc,
struct iovec *pendingpayload)
{
XDR xdr;
ssize_t ret = -1;
if ((!inmsg.iov_base) || (!args) || (!proc))
return -1;
xdrmem_create (&xdr, inmsg.iov_base, (unsigned int)inmsg.iov_len,
XDR_DECODE);
if (!proc (&xdr, args)) {
ret = -1;
goto ret;
}
ret = xdr_decoded_length (xdr);
if (pendingpayload) {
pendingpayload->iov_base = xdr_decoded_remaining_addr (xdr);
pendingpayload->iov_len = xdr_decoded_remaining_len (xdr);
}
ret:
return ret;
}
ssize_t
xdr_length_round_up (size_t len, size_t bufsize)
{
int roundup = 0;
roundup = len % XDR_BYTES_PER_UNIT;
if (roundup > 0)
roundup = XDR_BYTES_PER_UNIT - roundup;
if ((roundup > 0) && ((roundup + len) <= bufsize))
len += roundup;
return len;
}
int
xdr_bytes_round_up (struct iovec *vec, size_t bufsize)
{
vec->iov_len = xdr_length_round_up (vec->iov_len, bufsize);
return 0;
}
void
xdr_vector_round_up (struct iovec *vec, int vcount, uint32_t count)
{
uint32_t round_count = 0;
round_count = xdr_length_round_up (count, 1048576);
round_count -= count;
if (round_count == 0)
return;
vec[vcount-1].iov_len += round_count;
}
|
