Module: Fcntl

Relationships & Source Files
Defined in:	ext/fcntl/fcntl.c

Constant Summary

FD_CLOEXEC =

the value of the close-on-exec flag.

# File 'ext/fcntl/fcntl.c', line 145
```
INT2NUM(FD_CLOEXEC)
```
F_DUP2FD =

It is a FreeBSD specific constant and equivalent to dup2 call.

# File 'ext/fcntl/fcntl.c', line 271
```
INT2NUM(F_DUP2FD)
```
F_DUP2FD_CLOEXEC =

It is a FreeBSD specific constant and acts similarly as F_DUP2FD but set the FD_CLOEXEC flag in addition.

# File 'ext/fcntl/fcntl.c', line 280
```
INT2NUM(F_DUP2FD_CLOEXEC)
```
F_DUPFD =

Duplicate a file descriptor to the minimum unused file descriptor greater than or equal to the argument.

The close-on-exec flag of the duplicated file descriptor is set. (Ruby uses F_DUPFD_CLOEXEC internally if available to avoid race condition. F_SETFD is used if F_DUPFD_CLOEXEC is not available.)

# File 'ext/fcntl/fcntl.c', line 84
```
INT2NUM(F_DUPFD)
```
F_GETFD =

Read the close-on-exec flag of a file descriptor.

# File 'ext/fcntl/fcntl.c', line 91
```
INT2NUM(F_GETFD)
```
F_GETFL =

Get the file descriptor flags. This will be one or more of the O_* flags.

# File 'ext/fcntl/fcntl.c', line 114
```
INT2NUM(F_GETFL)
```
F_GETLK =

Determine whether a given region of a file is locked. This uses one of the F_*LK flags.

# File 'ext/fcntl/fcntl.c', line 99
```
INT2NUM(F_GETLK)
```
F_GETPIPE_SZ =

Return (as the function result) the capacity of the pipe referred to by fd.

# File 'ext/fcntl/fcntl.c', line 180
```
INT2NUM(F_GETPIPE_SZ)
```
F_RDLCK =

Read lock for a region of a file

# File 'ext/fcntl/fcntl.c', line 152
```
INT2NUM(F_RDLCK)
```
F_SETFD =

Set the close-on-exec flag of a file descriptor.

# File 'ext/fcntl/fcntl.c', line 106
```
INT2NUM(F_SETFD)
```
F_SETFL =

Set the file descriptor flags. This will be one or more of the O_* flags.

# File 'ext/fcntl/fcntl.c', line 122
```
INT2NUM(F_SETFL)
```
F_SETLK =

Acquire a lock on a region of a file. This uses one of the F_*LCK flags.

# File 'ext/fcntl/fcntl.c', line 130
```
INT2NUM(F_SETLK)
```
F_SETLKW =

Acquire a lock on a region of a file, waiting if necessary. This uses one of the F_*LCK flags

# File 'ext/fcntl/fcntl.c', line 138
```
INT2NUM(F_SETLKW)
```
F_SETPIPE_SZ =

Change the capacity of the pipe referred to by fd to be at least arg bytes.

# File 'ext/fcntl/fcntl.c', line 173
```
INT2NUM(F_SETPIPE_SZ)
```
F_UNLCK =

Remove lock for a region of a file

# File 'ext/fcntl/fcntl.c', line 159
```
INT2NUM(F_UNLCK)
```
F_WRLCK =

Write lock for a region of a file

# File 'ext/fcntl/fcntl.c', line 166
```
INT2NUM(F_WRLCK)
```
O_ACCMODE =

Mask to extract the read/write flags

# File 'ext/fcntl/fcntl.c', line 257
```
INT2FIX(O_ACCMODE)
```
O_APPEND =

Open the file in append mode

# File 'ext/fcntl/fcntl.c', line 215
```
INT2NUM(O_APPEND)
```
O_CREAT =

Create the file if it doesn’t exist

# File 'ext/fcntl/fcntl.c', line 187
```
INT2NUM(O_CREAT)
```
O_EXCL =

Used with O_CREAT, fail if the file exists

# File 'ext/fcntl/fcntl.c', line 194
```
INT2NUM(O_EXCL)
```
O_NDELAY =

Open the file in non-blocking mode

# File 'ext/fcntl/fcntl.c', line 229
```
INT2NUM(O_NDELAY)
```
O_NOCTTY =

Open TTY without it becoming the controlling TTY

# File 'ext/fcntl/fcntl.c', line 201
```
INT2NUM(O_NOCTTY)
```
O_NONBLOCK =

Open the file in non-blocking mode

# File 'ext/fcntl/fcntl.c', line 222
```
INT2NUM(O_NONBLOCK)
```
O_RDONLY =

Open the file in read-only mode

# File 'ext/fcntl/fcntl.c', line 236
```
INT2NUM(O_RDONLY)
```
O_RDWR =

Open the file in read-write mode

# File 'ext/fcntl/fcntl.c', line 243
```
INT2NUM(O_RDWR)
```
O_TRUNC =

Truncate the file on open

# File 'ext/fcntl/fcntl.c', line 208
```
INT2NUM(O_TRUNC)
```
O_WRONLY =

Open the file in write-only mode.

# File 'ext/fcntl/fcntl.c', line 250
```
INT2NUM(O_WRONLY)
```
VERSION =
# File 'ext/fcntl/fcntl.c', line 72
```
rb_str_new_cstr(FCNTL_VERSION)
```