def _fastcopy_osx(fsrc, fdst, flags):
"""Copy a regular file content or metadata by using high-performance
fcopyfile(3) syscall (OSX).
"""
try:
infd = fsrc.fileno()
outfd = fdst.fileno()
except Exception as err:
raise _GiveupOnFastCopy(err) # not a regular file
try:
posix._fcopyfile(infd, outfd, flags)
except OSError as err:
err.filename = fsrc.name
err.filename2 = fdst.name
if err.errno in {errno.EINVAL, errno.ENOTSUP}:
raise _GiveupOnFastCopy(err)
else:
raise err from None
def _fastcopy_fcopyfile(fsrc, fdst, flags):
"""Copy a regular file content or metadata by using high-performance
fcopyfile(3) syscall (macOS).
"""
try:
infd = fsrc.fileno()
outfd = fdst.fileno()
except Exception as err:
raise _GiveupOnFastCopy(err) # not a regular file
try:
posix._fcopyfile(infd, outfd, flags)
except OSError as err:
err.filename = fsrc.name
err.filename2 = fdst.name
if err.errno in {errno.EINVAL, errno.ENOTSUP}:
raise _GiveupOnFastCopy(err)
else:
raise err from None
