mercurial/lock.py

43747:da5ccc591cff

        except (OSError, IOError) as why:
            if why.errno == errno.ENOENT:
                return None
            raise

    def _testlock(self, locker):
        if locker is None:
            return None
        try:
            host, pid = locker.split(b":", 1)
        except ValueError:
            return locker
        if host != lock._host:
            return locker
        try:
            pid = int(pid)
        except ValueError:
            return locker
        if procutil.testpid(pid):
            return locker
        # if locker dead, break lock.  must do this with another lock
        # held, or can race and break valid lock.
        try:
            l = lock(self.vfs, self.f + b'.break', timeout=0)
            self.vfs.unlink(self.f)
            l.release()
        except error.LockError:
            return locker

    def testlock(self):
        """return id of locker if lock is valid, else None.

43748:cd822413b9aa

        except (OSError, IOError) as why:
            if why.errno == errno.ENOENT:
                return None
            raise

    def _lockshouldbebroken(self, locker):
        if locker is None:
            return False
        try:
            host, pid = locker.split(b":", 1)
        except ValueError:
            return False
        if host != lock._host:
            return False
        try:
            pid = int(pid)
        except ValueError:
            return False
        if procutil.testpid(pid):
            return False
        return True

    def _testlock(self, locker):
        if not self._lockshouldbebroken(locker):
            return locker

        # if locker dead, break lock.  must do this with another lock
        # held, or can race and break valid lock.
        try:
            with lock(self.vfs, self.f + b'.break', timeout=0):
                self.vfs.unlink(self.f)
        except error.LockError:
            return locker

    def testlock(self):
        """return id of locker if lock is valid, else None.