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
|
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008-2009 Sun Microsystems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/* *****************************************************************************
* General purpose routines.
* ***************************************************************************
*/
#include "btl_sctp_utils.h"
#include "ompi/mca/btl/base/btl_base_error.h"
/**
* struct sockaddr_in mca_btl_sctp_utils_sockaddr_from_frag
* --------------------------------------------------------
* Returns a sockaddr_in struct associated with the mca_btl_sctp_frag_t *frag.
*/
struct sockaddr_in mca_btl_sctp_utils_sockaddr_from_frag(struct mca_btl_sctp_frag_t *frag) {
struct sockaddr_in btl_sockaddr;
memset(&btl_sockaddr, 0, sizeof(struct sockaddr_in));
btl_sockaddr.sin_family = AF_INET;
btl_sockaddr.sin_port = frag->endpoint->endpoint_addr->addr_port;
btl_sockaddr.sin_addr.s_addr = frag->endpoint->endpoint_addr->addr_inet.s_addr;
return btl_sockaddr;
}
/**
* struct sockaddr_in mca_btl_sctp_utils_sockaddr_from_endpoint
* ------------------------------------------------------------
* Returns a sockaddr_in struct associated with the mca_btl_base_endpoint_t *ep.
*/
struct sockaddr_in mca_btl_sctp_utils_sockaddr_from_endpoint(struct mca_btl_base_endpoint_t *ep) {
struct sockaddr_in btl_sockaddr;
memset(&btl_sockaddr, 0, sizeof(struct sockaddr_in));
btl_sockaddr.sin_family = AF_INET;
btl_sockaddr.sin_port = ep->endpoint_addr->addr_port;
btl_sockaddr.sin_addr.s_addr = ep->endpoint_addr->addr_inet.s_addr;
return btl_sockaddr;
}
/**
* int mca_btl_sctp_utils_writev(int sd, struct iovec *vec, size_t len,
* struct sockaddr *to_addr, socklen_t to_len, uint16_t stream_no)
* -----------------------------------------------------------------------
* Vector write.
*/
int mca_btl_sctp_utils_writev(int sd, struct iovec *vec, size_t len,
struct sockaddr *to_addr, socklen_t to_len, uint16_t stream_no) {
#if OMPI_MCA_BTL_SCTP_CONCATENATES_IOVS
/* required for Solaris since struct msghdr has no msg_control field */
int current_cnt=0, total_offset=0, total=0, byte_sent;
char *send_buf;
/* count the total and allocate space to copy to */
while(current_cnt < len) {
total += vec[current_cnt].iov_len;
current_cnt++;
}
if(NULL == (send_buf = (char *) malloc(total))) {
BTL_ERROR(("Ran out of memory."));
return 0;
}
/* combine all iovcnt's into one message. write all or nothing */
current_cnt=0;
while(current_cnt < len) {
memcpy(send_buf+total_offset, vec[current_cnt].iov_base, vec[current_cnt].iov_len);
total_offset += vec[current_cnt].iov_len;
current_cnt++;
}
byte_sent = sctp_sendmsg(sd, send_buf, total, (struct sockaddr *) to_addr,
sizeof(*to_addr), 0, 0, stream_no, 0, 0);
free(send_buf);
return byte_sent;
#else
/* uses iovec directly */
char outcmesg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
struct cmsghdr *cmesg;
struct msghdr outmesg;
struct sctp_sndrcvinfo *srinfo;
/* Default these to 0. */
uint32_t ppid = 0;
uint32_t flags = 0;
uint32_t ttl = 0;
uint32_t cxt = 0;
outmesg.msg_name = to_addr;
outmesg.msg_namelen = to_len;
outmesg.msg_iov = vec;
outmesg.msg_iovlen = 1;
outmesg.msg_flags = 0;
outmesg.msg_control = outcmesg;
outmesg.msg_controllen = sizeof(outcmesg);
cmesg = CMSG_FIRSTHDR(&outmesg);
cmesg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
outmesg.msg_controllen = cmesg->cmsg_len;
cmesg->cmsg_level = IPPROTO_SCTP;
cmesg->cmsg_type = SCTP_SNDRCV;
srinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmesg);
memset(srinfo, 0, sizeof(struct sctp_sndrcvinfo));
srinfo->sinfo_ppid = ppid;
srinfo->sinfo_flags = flags;
srinfo->sinfo_stream = stream_no;
srinfo->sinfo_timetolive = ttl;
srinfo->sinfo_context = cxt;
return sendmsg(sd, &outmesg, 0);
#endif
}
|
