source: mainline/uspace/lib/c/include/io/kio.h@ 45c8eea

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 45c8eea was 45c8eea, checked in by Jakub Jermar <jakub@…>, 7 years ago

Preallocate waitq handle during initialization

Do not clutter futex_down_composable() with the preallocation of the
wait queue handle and do it single-threadedly in futex_initialize().

  • Property mode set to 100644
File size: 2.3 KB
Line 
1/*
2 * Copyright (c) 2006 Jakub Vana
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#ifndef LIBC_IO_KIO_H_
36#define LIBC_IO_KIO_H_
37
38#include <stddef.h>
39#include <stdarg.h>
40#include <io/verify.h>
41#include <_bits/errno.h>
42#include <_bits/size_t.h>
43
44extern void __kio_init(void);
45extern errno_t kio_write(const void *, size_t, size_t *);
46extern void kio_update(void);
47extern void kio_command(const void *, size_t);
48extern int kio_printf(const char *, ...)
49 _HELENOS_PRINTF_ATTRIBUTE(1, 2);
50extern int kio_vprintf(const char *, va_list);
51
52/*
53 * In some files, we have conditional DPRINTF(...) macro that is defined empty
54 * in most cases. Provide a dummy printf so we get argument checking and
55 * avoid unused variable errors.
56 */
57
58static inline int dummy_printf(const char *fmt, ...) _HELENOS_PRINTF_ATTRIBUTE(1, 2);
59static inline int dummy_printf(const char *fmt, ...)
60{
61 /* Empty. */
62 (void) fmt;
63 return 0;
64}
65
66#endif
67
68/** @}
69 */
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