source: mainline/uspace/lib/drv/generic/remote_pio_window.c@ 984a9ba

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 984a9ba was 984a9ba, checked in by Martin Decky <martin@…>, 7 years ago

do not expose the call capability handler from the async framework

Keep the call capability handler encapsulated within the async framework
and do not expose it explicitly via its API. Use the pointer to
ipc_call_t as the sole object identifying an IPC call in the code that
uses the async framework.

This plugs a major leak in the abstraction and also simplifies both the
async framework (slightly) and all IPC servers.

  • Property mode set to 100644
File size: 2.5 KB
Line 
1/*
2 * Copyright (c) 2013 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libdrv
30 * @{
31 */
32/** @file
33 */
34
35#include <async.h>
36#include <errno.h>
37#include <macros.h>
38
39#include "ops/pio_window.h"
40#include "ddf/driver.h"
41
42static void remote_pio_window_get(ddf_fun_t *, void *, ipc_call_t *);
43
44static const remote_iface_func_ptr_t remote_pio_window_iface_ops [] = {
45 [PIO_WINDOW_GET] = &remote_pio_window_get
46};
47
48const remote_iface_t remote_pio_window_iface = {
49 .method_count = ARRAY_SIZE(remote_pio_window_iface_ops),
50 .methods = remote_pio_window_iface_ops
51};
52
53static void remote_pio_window_get(ddf_fun_t *fun, void *ops,
54 ipc_call_t *call)
55{
56 pio_window_ops_t *pio_win_ops = (pio_window_ops_t *) ops;
57
58 if (!pio_win_ops->get_pio_window) {
59 async_answer_0(call, ENOTSUP);
60 return;
61 }
62
63 pio_window_t *pio_window = pio_win_ops->get_pio_window(fun);
64 if (!pio_window) {
65 async_answer_0(call, ENOENT);
66 return;
67 }
68
69 async_answer_0(call, EOK);
70
71 ipc_call_t data;
72 size_t len;
73 if (!async_data_read_receive(&data, &len)) {
74 /* Protocol error - the recipient is not accepting data */
75 return;
76 }
77
78 async_data_read_finalize(&data, pio_window, len);
79}
80
81/**
82 * @}
83 */
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