本文整理汇总了Python中os.O_TMPFILE属性的典型用法代码示例。如果您正苦于以下问题：Python os.O_TMPFILE属性的具体用法？Python os.O_TMPFILE怎么用？Python os.O_TMPFILE使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类os的用法示例。
在下文中一共展示了os.O_TMPFILE属性的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: is_write_flags
# 需要导入模块: import os [as 别名]
# 或者: from os import O_TMPFILE [as 别名]
def is_write_flags(self, open_flags):
for flag in [os.O_WRONLY, os.O_RDWR, os.O_TRUNC, os.O_CREAT, os.O_EXCL, os.O_TMPFILE]:
# Strict equality is necessary here, since e.g. O_TMPFILE has multiple bits set,
# and O_DIRECTORY & O_TMPFILE > 0.
if open_flags & flag == flag:
return True
return False 示例2: TemporaryFile
# 需要导入模块: import os [as 别名]
# 或者: from os import O_TMPFILE [as 别名]
def TemporaryFile(mode='w+b', buffering=-1, encoding=None,
newline=None, suffix=None, prefix=None,
dir=None):
"""Create and return a temporary file.
Arguments:
'prefix', 'suffix', 'dir' -- as for mkstemp.
'mode' -- the mode argument to io.open (default "w+b").
'buffering' -- the buffer size argument to io.open (default -1).
'encoding' -- the encoding argument to io.open (default None)
'newline' -- the newline argument to io.open (default None)
The file is created as mkstemp() would do it.
Returns an object with a file-like interface. The file has no
name, and will cease to exist when it is closed.
"""
global _O_TMPFILE_WORKS
prefix, suffix, dir, output_type = _sanitize_params(prefix, suffix, dir)
flags = _bin_openflags
if _O_TMPFILE_WORKS:
try:
flags2 = (flags | _os.O_TMPFILE) & ~_os.O_CREAT
fd = _os.open(dir, flags2, 0o600)
except IsADirectoryError:
# Linux kernel older than 3.11 ignores the O_TMPFILE flag:
# O_TMPFILE is read as O_DIRECTORY. Trying to open a directory
# with O_RDWR|O_DIRECTORY fails with IsADirectoryError, a
# directory cannot be open to write. Set flag to False to not
# try again.
_O_TMPFILE_WORKS = False
except OSError:
# The filesystem of the directory does not support O_TMPFILE.
# For example, OSError(95, 'Operation not supported').
#
# On Linux kernel older than 3.11, trying to open a regular
# file (or a symbolic link to a regular file) with O_TMPFILE
# fails with NotADirectoryError, because O_TMPFILE is read as
# O_DIRECTORY.
pass
else:
try:
return _io.open(fd, mode, buffering=buffering,
newline=newline, encoding=encoding)
except:
_os.close(fd)
raise
# Fallback to _mkstemp_inner().
(fd, name) = _mkstemp_inner(dir, prefix, suffix, flags, output_type)
try:
_os.unlink(name)
return _io.open(fd, mode, buffering=buffering,
newline=newline, encoding=encoding)
except:
_os.close(fd)
raise