RTEMS 6.1-rc7
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io.h
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1/* SPDX-License-Identifier: BSD-2-Clause */
2
12/*
13 * Copyright (C) 2017, 2023 embedded brains GmbH & Co. KG
14 *
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
17 * are met:
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#ifndef _RTEMS_DEV_IO_H
38#define _RTEMS_DEV_IO_H
39
41
42#include <stdarg.h>
43
44#ifdef __cplusplus
45extern "C" {
46#endif /* __cplusplus */
47
65typedef void ( *IO_Put_char )( int c, void *arg );
66
82 IO_Put_char put_char,
83 void *arg,
84 char const *fmt,
85 ...
86) RTEMS_PRINTFLIKE( 3, 4 );
87
102int _IO_Vprintf(
103 IO_Put_char put_char,
104 void *arg,
105 char const *fmt,
106 va_list ap
107);
108
115void _IO_Relax( void );
116
119#ifdef __cplusplus
120}
121#endif /* __cplusplus */
122
123#endif /* _RTEMS_DEV_IO_H */
This header file provides basic definitions used by the API and the implementation.
#define RTEMS_PRINTFLIKE(_format_pos, _ap_pos)
Tells the compiler in a declaration that this function expects printf()-like arguments.
Definition: basedefs.h:772
int int _IO_Vprintf(IO_Put_char put_char, void *arg, char const *fmt, va_list ap)
Prints characters using the put character handler according to the format string.
Definition: iovprintf.c:92
int _IO_Printf(IO_Put_char put_char, void *arg, char const *fmt,...) RTEMS_PRINTFLIKE(3
Prints characters using the put character handler according to the format string.
void _IO_Relax(void)
Issues a couple of no-operation instructions.
Definition: iorelax.c:43
void(* IO_Put_char)(int c, void *arg)
This type defines the put character handler.
Definition: io.h:65