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# AUTO-GENERATED FILE -- DO NOT EDIT
""" This module performs file control and I/O control on file
descriptors. It is an interface to the fcntl() and ioctl() Unix
routines. File descriptors can be obtained with the fileno() method of
a file or socket object. """
DN_ACCESS = 1
DN_ATTRIB = 32
DN_CREATE = 4
DN_DELETE = 8
DN_MODIFY = 2
DN_MULTISHOT = 2147483648
DN_RENAME = 16
FASYNC = 8192
FD_CLOEXEC = 1
F_DUPFD = 0
F_EXLCK = 4
F_GETFD = 1
F_GETFL = 3
F_GETLEASE = 1025
F_GETLK = 5
F_GETLK64 = 5
F_GETOWN = 9
F_GETSIG = 11
F_NOTIFY = 1026
F_RDLCK = 0
F_SETFD = 2
F_SETFL = 4
F_SETLEASE = 1024
F_SETLK = 6
F_SETLK64 = 6
F_SETLKW = 7
F_SETLKW64 = 7
F_SETOWN = 8
F_SETSIG = 10
F_SHLCK = 8
F_UNLCK = 2
F_WRLCK = 1
I_ATMARK = 21279
I_CANPUT = 21282
I_CKBAND = 21277
I_FDINSERT = 21264
I_FIND = 21259
I_FLUSH = 21253
I_FLUSHBAND = 21276
I_GETBAND = 21278
I_GETCLTIME = 21281
I_GETSIG = 21258
I_GRDOPT = 21255
I_GWROPT = 21268
I_LINK = 21260
I_LIST = 21269
I_LOOK = 21252
I_NREAD = 21249
I_PEEK = 21263
I_PLINK = 21270
I_POP = 21251
I_PUNLINK = 21271
I_PUSH = 21250
I_RECVFD = 21262
I_SENDFD = 21265
I_SETCLTIME = 21280
I_SETSIG = 21257
I_SRDOPT = 21254
I_STR = 21256
I_SWROPT = 21267
I_UNLINK = 21261
LOCK_EX = 2
LOCK_MAND = 32
LOCK_NB = 4
LOCK_READ = 64
LOCK_RW = 192
LOCK_SH = 1
LOCK_UN = 8
LOCK_WRITE = 128
__package__ = None
def fcntl(fd, opt, arg=None):
""" fcntl(fd, opt, [arg])
Perform the requested operation on file descriptor fd. The operation
is defined by op and is operating system dependent. These constants are
available from the fcntl module. The argument arg is optional, and
defaults to 0; it may be an int or a string. If arg is given as a string,
the return value of fcntl is a string of that length, containing the
resulting value put in the arg buffer by the operating system. The length
of the arg string is not allowed to exceed 1024 bytes. If the arg given
is an integer or if none is specified, the result value is an integer
corresponding to the return value of the fcntl call in the C code. """
pass
def flock(fd, operation):
""" flock(fd, operation)
Perform the lock operation op on file descriptor fd. See the Unix
manual page for flock(3) for details. (On some systems, this function is
emulated using fcntl().) """
pass
def ioctl(fd, opt, arg=None, mutate_flag=None):
""" ioctl(fd, opt[, arg[, mutate_flag]])
Perform the requested operation on file descriptor fd. The operation is
defined by opt and is operating system dependent. Typically these codes are
retrieved from the fcntl or termios library modules.
The argument arg is optional, and defaults to 0; it may be an int or a
buffer containing character data (most likely a string or an array).
If the argument is a mutable buffer (such as an array) and if the
mutate_flag argument (which is only allowed in this case) is true then the
buffer is (in effect) passed to the operating system and changes made by
the OS will be reflected in the contents of the buffer after the call has
returned. The return value is the integer returned by the ioctl system
call.
If the argument is a mutable buffer and the mutable_flag argument is not
passed or is false, the behavior is as if a string had been passed. This
behavior will change in future releases of Python.
If the argument is an immutable buffer (most likely a string) then a copy
of the buffer is passed to the operating system and the return value is a
string of the same length containing whatever the operating system put in
the buffer. The length of the arg buffer in this case is not allowed to
exceed 1024 bytes.
If the arg given is an integer or if none is specified, the result value is
an integer corresponding to the return value of the ioctl call in the C
code. """
pass
def lockf():
""" lockf (fd, operation, length=0, start=0, whence=0)
This is essentially a wrapper around the fcntl() locking calls. fd is the
file descriptor of the file to lock or unlock, and operation is one of the
following values:
LOCK_UN - unlock
LOCK_SH - acquire a shared lock
LOCK_EX - acquire an exclusive lock
When operation is LOCK_SH or LOCK_EX, it can also be bitwise ORed with
LOCK_NB to avoid blocking on lock acquisition. If LOCK_NB is used and the
lock cannot be acquired, an IOError will be raised and the exception will
have an errno attribute set to EACCES or EAGAIN (depending on the operating
system -- for portability, check for either value).
length is the number of bytes to lock, with the default meaning to lock to
EOF. start is the byte offset, relative to whence, to that the lock
starts. whence is as with fileobj.seek(), specifically:
0 - relative to the start of the file (SEEK_SET)
1 - relative to the current buffer position (SEEK_CUR)
2 - relative to the end of the file (SEEK_END) """
pass
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