refactor: excel parse

2026-04-16 10:01:11 +08:00
parent 680ecc320f
commit f62f95ec02
7941 changed files with 2899112 additions and 0 deletions
@@ -0,0 +1,59 @@
+"""
+Locking constants
+
+Lock types:
+
+- `EXCLUSIVE` exclusive lock
+- `SHARED` shared lock
+
+Lock flags:
+
+- `NON_BLOCKING` non-blocking
+
+Manually unlock, only needed internally
+
+- `UNBLOCK` unlock
+"""
+
+import enum
+import os
+
+# The actual tests will execute the code anyhow so the following code can
+# safely be ignored from the coverage tests
+if os.name == 'nt':  # pragma: no cover
+    import msvcrt
+
+    #: exclusive lock
+    LOCK_EX = 0x1
+    #: shared lock
+    LOCK_SH = 0x2
+    #: non-blocking
+    LOCK_NB = 0x4
+    #: unlock
+    LOCK_UN = msvcrt.LK_UNLCK  # type: ignore[attr-defined]
+
+elif os.name == 'posix':  # pragma: no cover
+    import fcntl
+
+    #: exclusive lock
+    LOCK_EX = fcntl.LOCK_EX  # type: ignore[attr-defined]
+    #: shared lock
+    LOCK_SH = fcntl.LOCK_SH  # type: ignore[attr-defined]
+    #: non-blocking
+    LOCK_NB = fcntl.LOCK_NB  # type: ignore[attr-defined]
+    #: unlock
+    LOCK_UN = fcntl.LOCK_UN  # type: ignore[attr-defined]
+
+else:  # pragma: no cover
+    raise RuntimeError('PortaLocker only defined for nt and posix platforms')
+
+
+class LockFlags(enum.IntFlag):
+    #: exclusive lock
+    EXCLUSIVE = LOCK_EX
+    #: shared lock
+    SHARED = LOCK_SH
+    #: non-blocking
+    NON_BLOCKING = LOCK_NB
+    #: unlock
+    UNBLOCK = LOCK_UN