source: mainline/uspace/lib/libc/include/unistd.h@ 553492be

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 553492be was 2595dab, checked in by Martin Decky <martin@…>, 16 years ago

I/O subsystem overhaul:

  • add more POSIX-like file and stream functions (with real functionality of stdin, stdout, stderr)
  • cleanup console access methods (now generic to any console-like device)
  • remove unsafe stream functions
  • add special open_node(), fd_node(), fd_phone() (file) and fopen_node(), fnode(), fphone() (stream) functions for HelenOS-specific I/O operations
  • Property mode set to 100644
File size: 2.3 KB
Line 
1/*
2 * Copyright (c) 2005 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#ifndef LIBC_UNISTD_H_
36#define LIBC_UNISTD_H_
37
38#include <sys/types.h>
39#include <libarch/config.h>
40
41#ifndef NULL
42 #define NULL 0
43#endif
44
45#define getpagesize() (PAGE_SIZE)
46
47#ifndef SEEK_SET
48 #define SEEK_SET 0
49 #define SEEK_CUR 1
50 #define SEEK_END 2
51#endif
52
53extern ssize_t write(int, const void *, size_t);
54extern ssize_t read(int, void *, size_t);
55
56extern off_t lseek(int, off_t, int);
57extern int ftruncate(int, off_t);
58
59extern int close(int);
60extern int fsync(int);
61extern int unlink(const char *);
62
63extern char *getcwd(char *buf, size_t);
64extern int rmdir(const char *);
65extern int chdir(const char *);
66
67extern void _exit(int status) __attribute__ ((noreturn));
68extern void *sbrk(ssize_t incr);
69extern int usleep(unsigned long usec);
70extern unsigned int sleep(unsigned int seconds);
71
72#endif
73
74/** @}
75 */
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