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48918810a4
PR: ports/149944 Submitted by: Jesse Kempf <jkempf AT davisvision.com> Approved by: Jesse Kempf <jessekempf AT gmail.com> (maintainer)
72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
--- daemon/pidlockfile.py.orig 2010-08-24 16:57:37.753374406 +0000
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+++ daemon/pidlockfile.py 2010-08-24 16:58:57.825989360 +0000
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@@ -22,6 +22,7 @@
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NotLocked, NotMyLock,
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)
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+from lockfile.pidlockfile import PIDLockFile
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class PIDFileError(Exception):
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""" Abstract base class for errors specific to PID files. """
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@@ -30,61 +31,6 @@
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""" Raised when parsing contents of PID file fails. """
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-class PIDLockFile(LinkFileLock, object):
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- """ Lockfile implemented as a Unix PID file.
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-
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- The PID file is named by the attribute `path`. When locked,
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- the file will be created with a single line of text,
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- containing the process ID (PID) of the process that acquired
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- the lock.
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-
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- The lock is acquired and maintained as per `LinkFileLock`.
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-
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- """
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-
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- def read_pid(self):
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- """ Get the PID from the lock file.
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- """
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- result = read_pid_from_pidfile(self.path)
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- return result
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-
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- def acquire(self, *args, **kwargs):
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- """ Acquire the lock.
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-
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- Locks the PID file then creates the PID file for this
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- lock. The `timeout` parameter is used as for the
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- `LinkFileLock` class.
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-
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- """
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- super(PIDLockFile, self).acquire(*args, **kwargs)
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- try:
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- write_pid_to_pidfile(self.path)
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- except OSError, exc:
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- error = LockFailed("%(exc)s" % vars())
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- raise error
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-
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- def release(self):
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- """ Release the lock.
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-
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- Removes the PID file then releases the lock, or raises an
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- error if the current process does not hold the lock.
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-
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- """
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- if self.i_am_locking():
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- remove_existing_pidfile(self.path)
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- super(PIDLockFile, self).release()
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-
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- def break_lock(self):
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- """ Break an existing lock.
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-
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- If the lock is held, breaks the lock and removes the PID
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- file.
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-
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- """
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- super(PIDLockFile, self).break_lock()
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- remove_existing_pidfile(self.path)
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-
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-
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class TimeoutPIDLockFile(PIDLockFile):
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""" Lockfile with default timeout, implemented as a Unix PID file.
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