Mercurial > p > roundup > code
changeset 3701:c648bebf021e
wrap long lines
| author | Richard Jones <richard@users.sourceforge.net> |
|---|---|
| date | Sat, 09 Sep 2006 05:42:45 +0000 |
| parents | 9cc2566cc7d9 |
| children | 06d7816976bc |
| files | roundup/backends/portalocker.py |
| diffstat | 1 files changed, 13 insertions(+), 7 deletions(-) [+] |
line wrap: on
line diff
--- a/roundup/backends/portalocker.py Fri Sep 08 19:47:31 2006 +0000 +++ b/roundup/backends/portalocker.py Sat Sep 09 05:42:45 2006 +0000 @@ -2,7 +2,7 @@ # Requires python 1.5.2 or better. # ID line added by richard for Roundup file tracking -# $Id: portalocker.py,v 1.8 2004-02-11 23:55:09 richard Exp $ +# $Id: portalocker.py,v 1.9 2006-09-09 05:42:45 richard Exp $ """Cross-platform (posix/nt) API for flock-style file locking. @@ -66,7 +66,8 @@ FFFF0000 = -65536 def lock(file, flags): hfile = win32file._get_osfhandle(file.fileno()) - # LockFileEx is not supported on all Win32 platforms (Win95, Win98, WinME). + # LockFileEx is not supported on all Win32 platforms (Win95, Win98, + # WinME). # If it's not supported, win32file will raise an exception. # Try LockFileEx first, as it has more functionality and handles # blocking locks more efficiently. @@ -80,10 +81,12 @@ # LockFileEx is not supported. Use LockFile. # LockFile does not support shared locking -- always exclusive. - # Care: the low/high length params are reversed compared to LockFileEx. + # Care: the low/high length params are reversed compared to + # LockFileEx. if not flags & LOCK_EX: import warnings - warnings.warn("PortaLocker does not support shared locking on Win9x", RuntimeWarning) + warnings.warn("PortaLocker does not support shared " + "locking on Win9x", RuntimeWarning) # LockFile only supports immediate-fail locking. if flags & LOCK_NB: win32file.LockFile(hfile, 0, 0, FFFF0000, 0) @@ -96,7 +99,8 @@ win32file.LockFile(hfile, 0, 0, FFFF0000, 0) break except win32file.error, e: - # Propagate upwards all exceptions other than lock violation. + # Propagate upwards all exceptions other than lock + # violation. if e[0] != winerror.ERROR_LOCK_VIOLATION: raise e # Sleep and poll again. @@ -105,7 +109,8 @@ def unlock(file): hfile = win32file._get_osfhandle(file.fileno()) - # UnlockFileEx is not supported on all Win32 platforms (Win95, Win98, WinME). + # UnlockFileEx is not supported on all Win32 platforms (Win95, Win98, + # WinME). # If it's not supported, win32file will raise an api_error exception. try: win32file.UnlockFileEx(hfile, 0, FFFF0000, __overlapped) @@ -116,7 +121,8 @@ raise e # UnlockFileEx is not supported. Use UnlockFile. - # Care: the low/high length params are reversed compared to UnLockFileEx. + # Care: the low/high length params are reversed compared to + # UnLockFileEx. win32file.UnlockFile(hfile, 0, 0, FFFF0000, 0) elif os.name =='posix':