source: mainline/uspace/lib/c/generic/io/output.c@ 3061bc1

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 3061bc1 was b7fd2a0, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 7 years ago

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.
  • Property mode set to 100644
File size: 4.0 KB
Line 
1/*
2 * Copyright (c) 2011 Martin Decky
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 libc
30 * @{
31 */
32/** @file
33 */
34
35#include <async.h>
36#include <errno.h>
37#include <as.h>
38#include <ipc/output.h>
39#include <io/concaps.h>
40#include <io/output.h>
41
42errno_t output_yield(async_sess_t *sess)
43{
44 async_exch_t *exch = async_exchange_begin(sess);
45 errno_t ret = async_req_0_0(exch, OUTPUT_YIELD);
46 async_exchange_end(exch);
47
48 return ret;
49}
50
51errno_t output_claim(async_sess_t *sess)
52{
53 async_exch_t *exch = async_exchange_begin(sess);
54 errno_t ret = async_req_0_0(exch, OUTPUT_CLAIM);
55 async_exchange_end(exch);
56
57 return ret;
58}
59
60errno_t output_get_dimensions(async_sess_t *sess, sysarg_t *maxx, sysarg_t *maxy)
61{
62 async_exch_t *exch = async_exchange_begin(sess);
63 errno_t ret = async_req_0_2(exch, OUTPUT_GET_DIMENSIONS, maxx, maxy);
64 async_exchange_end(exch);
65
66 return ret;
67}
68
69errno_t output_get_caps(async_sess_t *sess, console_caps_t *ccaps)
70{
71 async_exch_t *exch = async_exchange_begin(sess);
72
73 sysarg_t rv;
74 errno_t ret = async_req_0_1(exch, OUTPUT_GET_CAPS, &rv);
75
76 async_exchange_end(exch);
77
78 if (ret == EOK)
79 *ccaps = (console_caps_t) rv;
80
81 return ret;
82}
83
84frontbuf_handle_t output_frontbuf_create(async_sess_t *sess,
85 chargrid_t *frontbuf)
86{
87 async_exch_t *exch = async_exchange_begin(sess);
88
89 ipc_call_t answer;
90 aid_t req = async_send_0(exch, OUTPUT_FRONTBUF_CREATE, &answer);
91 errno_t rc = async_share_out_start(exch, frontbuf, AS_AREA_READ
92 | AS_AREA_WRITE | AS_AREA_CACHEABLE);
93
94 async_exchange_end(exch);
95
96 errno_t ret;
97 async_wait_for(req, &ret);
98
99 if ((rc != EOK) || (ret != EOK))
100 return 0;
101
102 return (frontbuf_handle_t) IPC_GET_ARG1(answer);
103}
104
105errno_t output_set_style(async_sess_t *sess, console_style_t style)
106{
107 async_exch_t *exch = async_exchange_begin(sess);
108 errno_t ret = async_req_1_0(exch, OUTPUT_SET_STYLE, style);
109 async_exchange_end(exch);
110
111 return ret;
112}
113
114errno_t output_cursor_update(async_sess_t *sess, frontbuf_handle_t frontbuf)
115{
116 async_exch_t *exch = async_exchange_begin(sess);
117 errno_t ret = async_req_1_0(exch, OUTPUT_CURSOR_UPDATE, frontbuf);
118 async_exchange_end(exch);
119
120 return ret;
121}
122
123errno_t output_update(async_sess_t *sess, frontbuf_handle_t frontbuf)
124{
125 async_exch_t *exch = async_exchange_begin(sess);
126 errno_t ret = async_req_1_0(exch, OUTPUT_UPDATE, frontbuf);
127 async_exchange_end(exch);
128
129 return ret;
130}
131
132errno_t output_damage(async_sess_t *sess, frontbuf_handle_t frontbuf, sysarg_t col,
133 sysarg_t row, sysarg_t cols, sysarg_t rows)
134{
135 async_exch_t *exch = async_exchange_begin(sess);
136 errno_t ret = async_req_5_0(exch, OUTPUT_DAMAGE, frontbuf, col, row,
137 cols, rows);
138 async_exchange_end(exch);
139
140 return ret;
141}
142
143/** @}
144 */
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