]> sourceware.org Git - newlib-cygwin.git/blame - newlib/libc/include/sys/_default_fcntl.h
2008-12-11 Jeff Johnston <jjohnstn@redhat.com>
[newlib-cygwin.git] / newlib / libc / include / sys / _default_fcntl.h
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1
2#ifndef _SYS__DEFAULT_FCNTL_H_
3#ifdef __cplusplus
4extern "C" {
5#endif
6#define _SYS__DEFAULT_FCNTL_H_
7#include <_ansi.h>
8#define _FOPEN (-1) /* from sys/file.h, kernel use only */
9#define _FREAD 0x0001 /* read enabled */
10#define _FWRITE 0x0002 /* write enabled */
11#define _FAPPEND 0x0008 /* append (writes guaranteed at the end) */
12#define _FMARK 0x0010 /* internal; mark during gc() */
13#define _FDEFER 0x0020 /* internal; defer for next gc pass */
14#define _FASYNC 0x0040 /* signal pgrp when data ready */
15#define _FSHLOCK 0x0080 /* BSD flock() shared lock present */
16#define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */
17#define _FCREAT 0x0200 /* open with file create */
18#define _FTRUNC 0x0400 /* open with truncation */
19#define _FEXCL 0x0800 /* error on open if file exists */
20#define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */
21#define _FSYNC 0x2000 /* do all writes synchronously */
22#define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */
23#define _FNDELAY _FNONBLOCK /* non blocking I/O (4.2 style) */
24#define _FNOCTTY 0x8000 /* don't assign a ctty on this open */
25
26#define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
27
28/*
29 * Flag values for open(2) and fcntl(2)
30 * The kernel adds 1 to the open modes to turn it into some
31 * combination of FREAD and FWRITE.
32 */
33#define O_RDONLY 0 /* +1 == FREAD */
34#define O_WRONLY 1 /* +1 == FWRITE */
35#define O_RDWR 2 /* +1 == FREAD|FWRITE */
36#define O_APPEND _FAPPEND
37#define O_CREAT _FCREAT
38#define O_TRUNC _FTRUNC
39#define O_EXCL _FEXCL
40#define O_SYNC _FSYNC
41/* O_NDELAY _FNDELAY set in include/fcntl.h */
42/* O_NDELAY _FNBIO set in include/fcntl.h */
43#define O_NONBLOCK _FNONBLOCK
44#define O_NOCTTY _FNOCTTY
45/* For machines which care - */
46#if defined (_WIN32) || defined (__CYGWIN__)
47#define _FBINARY 0x10000
48#define _FTEXT 0x20000
49#define _FNOINHERIT 0x40000
50
51#define O_BINARY _FBINARY
52#define O_TEXT _FTEXT
53#define O_NOINHERIT _FNOINHERIT
54
55/* The windows header files define versions with a leading underscore. */
56#define _O_RDONLY O_RDONLY
57#define _O_WRONLY O_WRONLY
58#define _O_RDWR O_RDWR
59#define _O_APPEND O_APPEND
60#define _O_CREAT O_CREAT
61#define _O_TRUNC O_TRUNC
62#define _O_EXCL O_EXCL
63#define _O_TEXT O_TEXT
64#define _O_BINARY O_BINARY
65#define _O_RAW O_BINARY
66#define _O_NOINHERIT O_NOINHERIT
67#endif
68
69#ifndef _POSIX_SOURCE
70
71/*
72 * Flags that work for fcntl(fd, F_SETFL, FXXXX)
73 */
74#define FAPPEND _FAPPEND
75#define FSYNC _FSYNC
76#define FASYNC _FASYNC
77#define FNBIO _FNBIO
78#define FNONBIO _FNONBLOCK /* XXX fix to be NONBLOCK everywhere */
79#define FNDELAY _FNDELAY
80
81/*
82 * Flags that are disallowed for fcntl's (FCNTLCANT);
83 * used for opens, internal state, or locking.
84 */
85#define FREAD _FREAD
86#define FWRITE _FWRITE
87#define FMARK _FMARK
88#define FDEFER _FDEFER
89#define FSHLOCK _FSHLOCK
90#define FEXLOCK _FEXLOCK
91
92/*
93 * The rest of the flags, used only for opens
94 */
95#define FOPEN _FOPEN
96#define FCREAT _FCREAT
97#define FTRUNC _FTRUNC
98#define FEXCL _FEXCL
99#define FNOCTTY _FNOCTTY
100
101#endif /* !_POSIX_SOURCE */
102
103/* XXX close on exec request; must match UF_EXCLOSE in user.h */
104#define FD_CLOEXEC 1 /* posix */
105
106/* fcntl(2) requests */
107#define F_DUPFD 0 /* Duplicate fildes */
108#define F_GETFD 1 /* Get fildes flags (close on exec) */
109#define F_SETFD 2 /* Set fildes flags (close on exec) */
110#define F_GETFL 3 /* Get file flags */
111#define F_SETFL 4 /* Set file flags */
112#ifndef _POSIX_SOURCE
113#define F_GETOWN 5 /* Get owner - for ASYNC */
114#define F_SETOWN 6 /* Set owner - for ASYNC */
115#endif /* !_POSIX_SOURCE */
116#define F_GETLK 7 /* Get record-locking information */
117#define F_SETLK 8 /* Set or Clear a record-lock (Non-Blocking) */
118#define F_SETLKW 9 /* Set or Clear a record-lock (Blocking) */
119#ifndef _POSIX_SOURCE
120#define F_RGETLK 10 /* Test a remote lock to see if it is blocked */
121#define F_RSETLK 11 /* Set or unlock a remote lock */
122#define F_CNVT 12 /* Convert a fhandle to an open fd */
123#define F_RSETLKW 13 /* Set or Clear remote record-lock(Blocking) */
124#endif /* !_POSIX_SOURCE */
125
126/* fcntl(2) flags (l_type field of flock structure) */
127#define F_RDLCK 1 /* read lock */
128#define F_WRLCK 2 /* write lock */
129#define F_UNLCK 3 /* remove lock(s) */
130#ifndef _POSIX_SOURCE
131#define F_UNLKSYS 4 /* remove remote locks for a given system */
132#endif /* !_POSIX_SOURCE */
133
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134#ifdef __CYGWIN__
135/* Special descriptor value to denote the cwd in calls to openat(2) etc. */
136#define AT_FDCWD -2
137
138/* Flag values for faccessat2) et al. */
139#define AT_EACCESS 1
140#define AT_SYMLINK_NOFOLLOW 2
141#define AT_SYMLINK_FOLLOW 4
142#define AT_REMOVEDIR 8
143#endif
144
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145/*#include <sys/stdtypes.h>*/
146
147#ifndef __CYGWIN__
148/* file segment locking set data type - information passed to system by user */
149struct flock {
150 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
151 short l_whence; /* flag to choose starting offset */
152 long l_start; /* relative offset, in bytes */
153 long l_len; /* length, in bytes; 0 means lock to EOF */
154 short l_pid; /* returned with F_GETLK */
155 short l_xxx; /* reserved for future use */
156};
157#endif /* __CYGWIN__ */
158
159#ifndef _POSIX_SOURCE
160/* extended file segment locking set data type */
161struct eflock {
162 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
163 short l_whence; /* flag to choose starting offset */
164 long l_start; /* relative offset, in bytes */
165 long l_len; /* length, in bytes; 0 means lock to EOF */
166 short l_pid; /* returned with F_GETLK */
167 short l_xxx; /* reserved for future use */
168 long l_rpid; /* Remote process id wanting this lock */
169 long l_rsys; /* Remote system id wanting this lock */
170};
171#endif /* !_POSIX_SOURCE */
172
173
174#include <sys/types.h>
175#include <sys/stat.h> /* sigh. for the mode bits for open/creat */
176
177extern int open _PARAMS ((const char *, int, ...));
178extern int creat _PARAMS ((const char *, mode_t));
179extern int fcntl _PARAMS ((int, int, ...));
ca48eb65 180#ifdef __CYGWIN__
1fc30315 181#include <sys/time.h>
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182extern int futimesat _PARAMS ((int, const char *, const struct timeval *));
183extern int openat _PARAMS ((int, const char *, int, ...));
184extern int unlinkat _PARAMS ((int, const char *, int));
185#endif
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186
187/* Provide _<systemcall> prototypes for functions provided by some versions
188 of newlib. */
189#ifdef _COMPILING_NEWLIB
190extern int _open _PARAMS ((const char *, int, ...));
191extern int _fcntl _PARAMS ((int, int, ...));
192#ifdef __LARGE64_FILES
193extern int _open64 _PARAMS ((const char *, int, ...));
194#endif
195#endif
196
197#ifdef __cplusplus
198}
199#endif
200#endif /* !_SYS__DEFAULT_FCNTL_H_ */
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