source: mainline/kernel/generic/src/ipc/ops/concttome.c@ d8bb821

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d8bb821 was 466e95f7, checked in by Jakub Jermar <jakub@…>, 13 years ago

Add SYSIPC_OP macro to avoid repeating the same boilerplate code.

  • Property mode set to 100644
File size: 2.9 KB
Line 
1/*
2 * Copyright (c) 2006 Ondrej Palkovsky
3 * Copyright (c) 2012 Jakub Jermar
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/** @addtogroup genericipc
31 * @{
32 */
33/** @file
34 */
35
36#include <ipc/sysipc_ops.h>
37#include <ipc/ipc.h>
38#include <ipc/ipcrsc.h>
39#include <abi/errno.h>
40#include <arch.h>
41
42static int request_process(call_t *call, answerbox_t *box)
43{
44 int phoneid = phone_alloc(TASK);
45
46 IPC_SET_ARG5(call->data, phoneid);
47
48 return EOK;
49}
50
51static int answer_cleanup(call_t *answer, ipc_data_t *olddata)
52{
53 int phoneid = (int) IPC_GET_ARG5(*olddata);
54
55 if (phoneid >= 0)
56 phone_dealloc(phoneid);
57
58 return EOK;
59}
60
61static int answer_preprocess(call_t *answer, ipc_data_t *olddata)
62{
63 int phoneid = (int) IPC_GET_ARG5(*olddata);
64
65 if (IPC_GET_RETVAL(answer->data) != EOK) {
66 /* The connection was not accepted */
67 answer_cleanup(answer, olddata);
68 } else if (phoneid >= 0) {
69 /* The connection was accepted */
70 if (phone_connect(phoneid, &answer->sender->answerbox)) {
71 /* Set 'phone hash' as arg5 of response */
72 IPC_SET_ARG5(answer->data,
73 (sysarg_t) &TASK->phones[phoneid]);
74 } else {
75 /* The answerbox is shutting down. */
76 IPC_SET_RETVAL(answer->data, ENOENT);
77 answer_cleanup(answer, olddata);
78 }
79 } else {
80 IPC_SET_RETVAL(answer->data, ELIMIT);
81 }
82
83 return EOK;
84}
85
86
87sysipc_ops_t ipc_m_connect_to_me_ops = {
88 .request_preprocess = null_request_preprocess,
89 .request_forget = null_request_forget,
90 .request_process = request_process,
91 .answer_cleanup = answer_cleanup,
92 .answer_preprocess = answer_preprocess,
93 .answer_process = null_answer_process,
94};
95
96/** @}
97 */
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