diff options
Diffstat (limited to 'newlib/libc/include/sys/fcntl.h')
| -rw-r--r-- | newlib/libc/include/sys/fcntl.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/newlib/libc/include/sys/fcntl.h b/newlib/libc/include/sys/fcntl.h new file mode 100644 index 00000000000..ed32fab9b5f --- /dev/null +++ b/newlib/libc/include/sys/fcntl.h @@ -0,0 +1,178 @@ + +#ifndef _FCNTL_ +#ifdef __cplusplus +extern "C" { +#endif +#define _FCNTL_ +#include <_ansi.h> +#define _FOPEN (-1) /* from sys/file.h, kernel use only */ +#define _FREAD 0x0001 /* read enabled */ +#define _FWRITE 0x0002 /* write enabled */ +#define _FNDELAY 0x0004 /* non blocking I/O (4.2 style) */ +#define _FAPPEND 0x0008 /* append (writes guaranteed at the end) */ +#define _FMARK 0x0010 /* internal; mark during gc() */ +#define _FDEFER 0x0020 /* internal; defer for next gc pass */ +#define _FASYNC 0x0040 /* signal pgrp when data ready */ +#define _FSHLOCK 0x0080 /* BSD flock() shared lock present */ +#define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */ +#define _FCREAT 0x0200 /* open with file create */ +#define _FTRUNC 0x0400 /* open with truncation */ +#define _FEXCL 0x0800 /* error on open if file exists */ +#define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */ +#define _FSYNC 0x2000 /* do all writes synchronously */ +#define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */ +#define _FNOCTTY 0x8000 /* don't assign a ctty on this open */ + +#define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR) + +/* + * Flag values for open(2) and fcntl(2) + * The kernel adds 1 to the open modes to turn it into some + * combination of FREAD and FWRITE. + */ +#define O_RDONLY 0 /* +1 == FREAD */ +#define O_WRONLY 1 /* +1 == FWRITE */ +#define O_RDWR 2 /* +1 == FREAD|FWRITE */ +#define O_APPEND _FAPPEND +#define O_CREAT _FCREAT +#define O_TRUNC _FTRUNC +#define O_EXCL _FEXCL +/* O_SYNC _FSYNC not posix, defined below */ +/* O_NDELAY _FNDELAY set in include/fcntl.h */ +/* O_NDELAY _FNBIO set in 5include/fcntl.h */ +#define O_NONBLOCK _FNONBLOCK +#define O_NOCTTY _FNOCTTY +/* For machines which care - */ +#if defined (_WIN32) || defined (__CYGWIN__) +#define _FBINARY 0x10000 +#define _FTEXT 0x20000 +#define _FNOINHERIT 0x40000 + +#define O_BINARY _FBINARY +#define O_TEXT _FTEXT +#define O_NOINHERIT _FNOINHERIT + +/* The windows header files define versions with a leading underscore. */ +#define _O_RDONLY O_RDONLY +#define _O_WRONLY O_WRONLY +#define _O_RDWR O_RDWR +#define _O_APPEND O_APPEND +#define _O_CREAT O_CREAT +#define _O_TRUNC O_TRUNC +#define _O_EXCL O_EXCL +#define _O_TEXT O_TEXT +#define _O_BINARY O_BINARY +#define _O_RAW O_BINARY +#define _O_NOINHERIT O_NOINHERIT +#endif + +#ifndef _POSIX_SOURCE + +#define O_SYNC _FSYNC + +/* + * Flags that work for fcntl(fd, F_SETFL, FXXXX) + */ +#define FAPPEND _FAPPEND +#define FSYNC _FSYNC +#define FASYNC _FASYNC +#define FNBIO _FNBIO +#define FNONBIO _FNONBLOCK /* XXX fix to be NONBLOCK everywhere */ +#define FNDELAY _FNDELAY + +/* + * Flags that are disallowed for fcntl's (FCNTLCANT); + * used for opens, internal state, or locking. + */ +#define FREAD _FREAD +#define FWRITE _FWRITE +#define FMARK _FMARK +#define FDEFER _FDEFER +#define FSHLOCK _FSHLOCK +#define FEXLOCK _FEXLOCK + +/* + * The rest of the flags, used only for opens + */ +#define FOPEN _FOPEN +#define FCREAT _FCREAT +#define FTRUNC _FTRUNC +#define FEXCL _FEXCL +#define FNOCTTY _FNOCTTY + +#endif /* !_POSIX_SOURCE */ + +/* XXX close on exec request; must match UF_EXCLOSE in user.h */ +#define FD_CLOEXEC 1 /* posix */ + +/* fcntl(2) requests */ +#define F_DUPFD 0 /* Duplicate fildes */ +#define F_GETFD 1 /* Get fildes flags (close on exec) */ +#define F_SETFD 2 /* Set fildes flags (close on exec) */ +#define F_GETFL 3 /* Get file flags */ +#define F_SETFL 4 /* Set file flags */ +#ifndef _POSIX_SOURCE +#define F_GETOWN 5 /* Get owner - for ASYNC */ +#define F_SETOWN 6 /* Set owner - for ASYNC */ +#endif /* !_POSIX_SOURCE */ +#define F_GETLK 7 /* Get record-locking information */ +#define F_SETLK 8 /* Set or Clear a record-lock (Non-Blocking) */ +#define F_SETLKW 9 /* Set or Clear a record-lock (Blocking) */ +#ifndef _POSIX_SOURCE +#define F_RGETLK 10 /* Test a remote lock to see if it is blocked */ +#define F_RSETLK 11 /* Set or unlock a remote lock */ +#define F_CNVT 12 /* Convert a fhandle to an open fd */ +#define F_RSETLKW 13 /* Set or Clear remote record-lock(Blocking) */ +#endif /* !_POSIX_SOURCE */ + +/* fcntl(2) flags (l_type field of flock structure) */ +#define F_RDLCK 1 /* read lock */ +#define F_WRLCK 2 /* write lock */ +#define F_UNLCK 3 /* remove lock(s) */ +#ifndef _POSIX_SOURCE +#define F_UNLKSYS 4 /* remove remote locks for a given system */ +#endif /* !_POSIX_SOURCE */ + +/*#include <sys/stdtypes.h>*/ + +/* file segment locking set data type - information passed to system by user */ +struct flock { + short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ + short l_whence; /* flag to choose starting offset */ + long l_start; /* relative offset, in bytes */ + long l_len; /* length, in bytes; 0 means lock to EOF */ + short l_pid; /* returned with F_GETLK */ + short l_xxx; /* reserved for future use */ +}; + +#ifndef _POSIX_SOURCE +/* extended file segment locking set data type */ +struct eflock { + short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ + short l_whence; /* flag to choose starting offset */ + long l_start; /* relative offset, in bytes */ + long l_len; /* length, in bytes; 0 means lock to EOF */ + short l_pid; /* returned with F_GETLK */ + short l_xxx; /* reserved for future use */ + long l_rpid; /* Remote process id wanting this lock */ + long l_rsys; /* Remote system id wanting this lock */ +}; +#endif /* !_POSIX_SOURCE */ + + +#include <sys/types.h> +#include <sys/stat.h> /* sigh. for the mode bits for open/creat */ + +extern int open _PARAMS ((const char *, int, ...)); +extern int creat _PARAMS ((const char *, mode_t)); +extern int fcntl _PARAMS ((int, int, ...)); + +/* Provide _<systemcall> prototypes for functions provided by some versions + of newlib. */ +extern int _open _PARAMS ((const char *, int, ...)); +extern int _fcntl _PARAMS ((int, int, ...)); + +#ifdef __cplusplus +} +#endif +#endif /* !_FCNTL_ */ |