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
|
#include "port_before.h"
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include "port_after.h"
#ifndef NEED_WRITEV
int __bindcompat_writev;
#else
#ifdef _CRAY
#define OWN_WRITEV
int
__writev(int fd, struct iovec *iov, int iovlen)
{
struct stat statbuf;
if (fstat(fd, &statbuf) < 0)
return (-1);
/*
* Allow for atomic writes to network.
*/
if (statbuf.st_mode & S_IFSOCK) {
struct msghdr mesg;
memset(&mesg, 0, sizeof(mesg));
mesg.msg_name = 0;
mesg.msg_namelen = 0;
mesg.msg_iov = iov;
mesg.msg_iovlen = iovlen;
mesg.msg_accrights = 0;
mesg.msg_accrightslen = 0;
return (sendmsg(fd, &mesg, 0));
} else {
struct iovec *tv;
int i, rcode = 0, count = 0;
for (i = 0, tv = iov; i <= iovlen; tv++) {
rcode = write(fd, tv->iov_base, tv->iov_len);
if (rcode < 0)
break;
count += rcode;
}
if (count == 0)
return (rcode);
else
return (count);
}
}
#else /*_CRAY*/
int
__writev(fd, vp, vpcount)
int fd;
const struct iovec *vp;
int vpcount;
{
int count = 0;
while (vpcount-- > 0) {
int written = write(fd, vp->iov_base, vp->iov_len);
if (written < 0)
return (-1);
count += written;
if (written != vp->iov_len)
break;
vp++;
}
return (count);
}
#endif /*_CRAY*/
#endif /*NEED_WRITEV*/
/*! \file */
|
