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Cleanup attribute access

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This commit is contained in:
Kovid Goyal 2022-03-10 07:30:05 +05:30
parent c30a249cf6
commit d3b63a9c45
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 10 additions and 3 deletions
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13
kitty/shm.py
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@ -30,6 +30,9 @@ def make_filename(prefix: str) -> str:
class SharedMemory:
_buf: Optional[memoryview] = None
_fd: int = -1
_name: str = ''
_mmap: Optional[mmap.mmap] = None
_size: int = 0
def __init__(
self, name: Optional[str] = None, create: bool = False, size: int = 0, readonly: bool = False,
@ -55,7 +58,6 @@ class SharedMemory:
self._fd = shm_open(name, flags, mode)
except FileExistsError:
continue
self._name = name
break
else:
self._fd = shm_open(name, flags)
@ -70,7 +72,7 @@ class SharedMemory:
self.unlink()
raise
self.size = size
self._size = size
self._buf = memoryview(self._mmap)
def __del__(self) -> None:
@ -85,6 +87,10 @@ class SharedMemory:
def __exit__(self, *a: object) -> None:
self.close()
@property
def size(self) -> int:
return self._size
@property
def name(self) -> str:
return self._name
@ -108,8 +114,9 @@ class SharedMemory:
if self._buf is not None:
self._buf.release()
self._buf = None
if getattr(self, '_mmap', None) is not None:
if self._mmap is not None:
self._mmap.close()
self._mmap = None
if self._fd >= 0:
os.close(self._fd)
self._fd = -1