10067 Miscellaneous man page typos
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Andy Fiddaman <andy@omniosce.org>
Reviewed by: Volker A. Brandt <vab@bb-c.de>
1 .\"
2 .\" Sun Microsystems, Inc. gratefully acknowledges The Open Group for
3 .\" permission to reproduce portions of its copyrighted documentation.
4 .\" Original documentation from The Open Group can be obtained online at
5 .\" http://www.opengroup.org/bookstore/.
6 .\"
7 .\" The Institute of Electrical and Electronics Engineers and The Open
8 .\" Group, have given us permission to reprint portions of their
9 .\" documentation.
10 .\"
11 .\" In the following statement, the phrase ``this text'' refers to portions
12 .\" of the system documentation.
13 .\"
14 .\" Portions of this text are reprinted and reproduced in electronic form
15 .\" in the SunOS Reference Manual, from IEEE Std 1003.1, 2004 Edition,
16 .\" Standard for Information Technology -- Portable Operating System
17 .\" Interface (POSIX), The Open Group Base Specifications Issue 6,
18 .\" Copyright (C) 2001-2004 by the Institute of Electrical and Electronics
19 .\" Engineers, Inc and The Open Group. In the event of any discrepancy
20 .\" between these versions and the original IEEE and The Open Group
21 .\" Standard, the original IEEE and The Open Group Standard is the referee
22 .\" document. The original Standard can be obtained online at
23 .\" http://www.opengroup.org/unix/online.html.
24 .\"
25 .\" This notice shall appear on any product containing this material.
26 .\"
27 .\" The contents of this file are subject to the terms of the
28 .\" Common Development and Distribution License (the "License").
29 .\" You may not use this file except in compliance with the License.
30 .\"
31 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
32 .\" or http://www.opensolaris.org/os/licensing.
33 .\" See the License for the specific language governing permissions
34 .\" and limitations under the License.
35 .\"
36 .\" When distributing Covered Code, include this CDDL HEADER in each
37 .\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
38 .\" If applicable, add the following below this CDDL HEADER, with the
39 .\" fields enclosed by brackets "[]" replaced with your own identifying
40 .\" information: Portions Copyright [yyyy] [name of copyright owner]
41 .\"
42 .\"
43 .\" Portions Copyright 1989 AT&T
44 .\" Copyright 1994, The X/Open Company Ltd. All Rights Reserved.
45 .\" Portions Copyright (c) 1998, Sun Microsystems, Inc. All Rights Reserved.
46 .\"
47 .TH T_SNDVUDATA 3NSL "Aug 23, 2001"
48 .SH NAME
49 t_sndvudata \- send a data unit from one or more noncontiguous buffers
50 .SH SYNOPSIS
51 .LP
52 .nf
53 #include <xti.h>
54
55
56
57
58 \fBint\fR \fBt_sndvudata\fR(\fBint\fR \fIfd\fR, \fBstruct t_unitdata *\fR\fIunitdata\fR, \fBstruct t_iovec *\fR\fIiov\fR,
59 \fBunsigned int\fR \fIiovcount\fR);
60 .fi
61
62 .SH DESCRIPTION
63 .LP
64 This function is used in connectionless mode to send a data unit to another
65 transport user. The argument \fIfd\fR identifies the local transport endpoint
66 through which data will be sent, \fIiovcount\fR contains the number of
67 non-contiguous \fIudata\fR buffers and is limited to an implementation-defined
68 value given by \fBT_IOV_MAX\fR which is at least 16, and \fIunitdata\fR
69 points to a \fBt_unitdata\fR structure containing the following members:
70 .sp
71 .in +2
72 .nf
73 struct netbuf addr;
74 struct netbuf opt;
75 struct netbuf udata;
76 .fi
77 .in -2
78
79 .sp
80 .LP
81 If the limit on \fIiovcount\fR is exceeded, the function fails with
82 \fBTBADDATA\fR.
83 .sp
84 .LP
85 In \fBunitdata\fR, \fIaddr\fR specifies the protocol address of the
86 destination user, and \fIopt\fR identifies options that the user wants
87 associated with this request. The \fIudata\fR field is not used. The user may
88 choose not to specify what protocol options are associated with the transfer by
89 setting the \fIlen\fR field of \fIopt\fR to zero. In this case, the provider
90 may use default options.
91 .sp
92 .LP
93 The data to be sent is identified by \fIiov\fR\fB[0]\fR\fI\fR through \fIiov
94 [iovcount-1]\fR\fB\&.\fR
95 .sp
96 .LP
97 Note that the limit on the total number of bytes available in all buffers
98 passed:
99 .sp
100 .in +2
101 .nf
102 \fIiov(0).iov_len + . . + iov(iovcount-1).iov_len \fR
103 .fi
104 .in -2
105
106 .sp
107 .LP
108 may be constrained by implementation limits. If no other constraint applies, it
109 will be limited by \fBINT_MAX\fR. In practice, the availability of memory to an
110 application is likely to impose a lower limit on the amount of data that can be
111 sent or received using scatter/gather functions.
112 .sp
113 .LP
114 By default, \fBt_sndvudata()\fR operates in synchronous mode and may wait if
115 flow control restrictions prevent the data from being accepted by the local
116 transport provider at the time the call is made. However, if \fBO_NONBLOCK\fR
117 is set by means of \fBt_open\fR(3NSL) or \fBfcntl\fR(2), \fBt_sndvudata()\fR
118 executes in asynchronous mode and will fail under such conditions. The process
119 can arrange to be notified of the clearance of a flow control restriction by
120 means of either \fBt_look\fR(3NSL) or the EM interface.
121 .sp
122 .LP
123 If the amount of data specified in \fIiov\fR\fB0\fR\fI\fR through \fIiov
124 [iovcount-1]\fR exceeds the TSDU size as returned in the \fItsdu\fR field of
125 the \fIinfo\fR argument of \fBt_open\fR(3NSL) or \fBt_getinfo\fR(3NSL), or is
126 zero and sending of zero octets is not supported by the underlying transport
127 service, a \fBTBADDATA\fR error is generated. If \fBt_sndvudata()\fR is
128 called before the destination user has activated its transport endpoint (see
129 \fBt_bind\fR(3NSL)\|), the data unit may be discarded.
130 .sp
131 .LP
132 If it is not possible for the transport provider to immediately detect the
133 conditions that cause the errors \fBTBADADDR\fR and \fBTBADOPT\fR, these
134 errors will alternatively be returned by \fBt_rcvuderr\fR(3NSL). An
135 application must therefore be prepared to receive these errors in both of these
136 ways.
137 .SH RETURN VALUES
138 .LP
139 Upon successful completion, a value of \fB0\fR is returned. Otherwise, a value
140 of -1 is returned and \fBt_errno\fR is set to indicate an error.
141 .SH VALID STATES
142 .LP
143 \fBT_IDLE\fR.
144 .SH ERRORS
145 .LP
146 On failure, \fBt_errno\fR is set to one of the following:
147 .sp
148 .ne 2
149 .na
150 \fB\fBTBADADDR\fR\fR
151 .ad
152 .RS 15n
153 The specified protocol address was in an incorrect format or contained illegal
154 information.
155 .RE
156
157 .sp
158 .ne 2
159 .na
160 \fB\fBTBADDATA\fR\fR
161 .ad
162 .RS 15n
163 Illegal amount of data.
164 .RS +4
165 .TP
166 .ie t \(bu
167 .el o
168 A single send was attempted specifying a TSDU greater than that specified in
169 the \fIinfo\fR argument, or a send of a zero byte TSDU is not supported by the
170 provider.
171 .RE
172 .RS +4
173 .TP
174 .ie t \(bu
175 .el o
176 \fIiovcount\fR is greater than \fBT_IOV_MAX.\fR
177 .RE
178 .RE
179
180 .sp
181 .ne 2
182 .na
183 \fB\fBTBADF\fR\fR
184 .ad
185 .RS 15n
186 The specified file descriptor does not refer to a transport endpoint.
187 .RE
188
189 .sp
190 .ne 2
191 .na
192 \fB\fBTBADOPT\fR\fR
193 .ad
194 .RS 15n
195 The specified options were in an incorrect format or contained illegal
196 information.
197 .RE
198
199 .sp
200 .ne 2
201 .na
202 \fB\fBTFLOW\fR\fR
203 .ad
204 .RS 15n
205 \fBO_NONBLOCK\fR \fBi\fR was set, but the flow control mechanism prevented the
206 transport provider from accepting any data at this time.
207 .RE
208
209 .sp
210 .ne 2
211 .na
212 \fB\fBTLOOK\fR\fR
213 .ad
214 .RS 15n
215 An asynchronous event has occurred on this transport endpoint.
216 .RE
217
218 .sp
219 .ne 2
220 .na
221 \fB\fBTNOTSUPPORT\fR\fR
222 .ad
223 .RS 15n
224 This function is not supported by the underlying transport provider.
225 .RE
226
227 .sp
228 .ne 2
229 .na
230 \fB\fBTOUTSTATE\fR\fR
231 .ad
232 .RS 15n
233 The communications endpoint referenced by \fIfd\fR is not in one of the states
234 in which a call to this function is valid.
235 .RE
236
237 .sp
238 .ne 2
239 .na
240 \fB\fBTPROTO\fR\fR
241 .ad
242 .RS 15n
243 This error indicates that a communication problem has been detected between XTI
244 and the transport provider for which there is no other suitable XTI error
245 \fB(t_errno)\fR.
246 .RE
247
248 .sp
249 .ne 2
250 .na
251 \fB\fBTSYSERR\fR\fR
252 .ad
253 .RS 15n
254 A system error has occurred during execution of this function.
255 .RE
256
257 .SH TLI COMPATIBILITY
258 .LP
259 In the \fBTLI\fR interface definition, no counterpart of this routine was
260 defined.
261 .SH ATTRIBUTES
262 .LP
263 See \fBattributes\fR(5) for descriptions of the following attributes:
264 .sp
265
266 .sp
267 .TS
268 box;
269 c | c
270 l | l .
271 ATTRIBUTE TYPE ATTRIBUTE VALUE
272 _
273 MT Level Safe
274 .TE
275
276 .SH SEE ALSO
277 .LP
278 \fBfcntl\fR(2), \fBt_alloc\fR(3NSL), \fBt_open\fR(3NSL),
279 \fBt_rcvudata\fR(3NSL), \fBt_rcvvudata\fR(3NSL) \fBt_rcvuderr\fR(3NSL),
280 \fBt_sndudata\fR(3NSL), \fBattributes\fR(5)
--- EOF ---