remove unused dbwrapper

2 files changed, 0 insertions, 184 deletions

diff --git a/client/src/leap/soledad/client/__init__.py b/client/src/leap/soledad/client/__init__.py
index fc8219fa..a3b26689 100644
--- a/client/src/leap/soledad/client/__init__.py
+++ b/client/src/leap/soledad/client/__init__.py
@@ -84,7 +84,6 @@ except ImportError:
 from leap.soledad.common import soledad_assert, soledad_assert_type
 from leap.soledad.common.document import SoledadDocument
 from leap.soledad.client.crypto import SoledadCrypto
-from leap.soledad.client.dbwrapper import SQLCipherWrapper
 from leap.soledad.client.shared_db import SoledadSharedDatabase
 from leap.soledad.client.sqlcipher import open as sqlcipher_open
 from leap.soledad.client.sqlcipher import SQLCipherDatabase
diff --git a/client/src/leap/soledad/client/dbwrapper.py b/client/src/leap/soledad/client/dbwrapper.py
deleted file mode 100644
index a27a933e..00000000
--- a/client/src/leap/soledad/client/dbwrapper.py
+++ /dev/null
@@ -1,183 +0,0 @@
-# -*- coding: utf-8 -*-
-# dbwrapper.py
-# Copyright (C) 2013 LEAP
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-"""
-Thread-safe wrapper for sqlite/pysqlcipher.
-
-*TODO*
-At some point we surely will want to switch to a twisted way of dealing
-with this, using defers and proper callbacks. But I had this tested for
-some time so postponing that refactor.
-"""
-import logging
-import threading
-import Queue
-import time
-
-import exceptions
-
-from functools import partial
-
-from leap.soledad.client import sqlcipher
-
-logger = logging.getLogger(__name__)
-
-
-class SQLCipherWrapper(threading.Thread):
-
-    def __init__(self, *args, **kwargs):
-        """
-        Initializes a wrapper that proxies method and attribute
-        access to an underlying SQLCipher instance. We instantiate sqlcipher
-        in a thread, and all method accesses communicate with it using a
-        Queue.
-
-        :param *args: position arguments to pass to pysqlcipher initialization
-        :type args: tuple
-
-        :param **kwargs: keyword arguments to pass to pysqlcipher
-                         initialization
-        :type kwargs: dict
-        """
-        threading.Thread.__init__(self)
-        self._db = None
-        self._wrargs = args, kwargs
-
-        self._queue = Queue.Queue()
-        self._stopped = threading.Event()
-
-        self.start()
-
-    def _init_db(self):
-        """
-        Initializes sqlcipher database.
-
-        This is called on a separate thread.
-        """
-        # instantiate u1db
-        args, kwargs = self._wrargs
-        self._db = sqlcipher.open(*args, **kwargs)
-
-    def run(self):
-        """
-        Main loop for the sqlcipher thread.
-        """
-        logger.debug("SQLCipherWrapper thread started.")
-        logger.debug("Initializing sqlcipher")
-        end_mths = ("__end_thread", "_SQLCipherWrapper__end_thread")
-
-        self._init_db()
-        self._lock = threading.Lock()
-
-        ct = 0
-        started = False
-
-        while True:
-            if self._db is None:
-                if started:
-                    break
-                if ct > 10:
-                    break  # XXX DEBUG
-                logger.debug('db not ready yet, waiting...')
-                time.sleep(1)
-                ct += 1
-
-            started = True
-
-            with self._lock:
-                try:
-                    mth, q, wrargs = self._queue.get()
-                except:
-                    logger.error("exception getting args from queue")
-
-                res = None
-                attr = getattr(self._db, mth, None)
-                if not attr:
-                    if mth not in end_mths:
-                        logger.error('method %s does not exist' % (mth,))
-                        res = AttributeError(
-                            "_db instance has no attribute %s" % mth)
-
-                elif callable(attr):
-                    # invoke the method with the passed args
-                    args = wrargs.get('args', [])
-                    kwargs = wrargs.get('kwargs', {})
-                    try:
-                        res = attr(*args, **kwargs)
-                    except Exception as e:
-                        logger.error(
-                            "Error on proxied method %s: '%r'." % (
-                            attr, e))
-                        res = e
-                else:
-                    # non-callable attribute
-                    res = attr
-                logger.debug('returning proxied db call...')
-                q.put(res)
-
-            if mth in end_mths:
-                logger.debug('ending thread')
-                break
-
-        logger.debug("SQLCipherWrapper thread terminated.")
-        self._stopped.set()
-
-    def close(self):
-        """
-        Closes the sqlcipher database and finishes the thread. This method
-        should always be called explicitely.
-        """
-        self.__getattr__('close')()
-        self.__end_thread()
-
-    def __getattr__(self, attr):
-        """
-        Returns _db proxied attributes.
-        """
-
-        def __proxied_mth(method, *args, **kwargs):
-            if not self._stopped.isSet():
-                wrargs = {'args': args, 'kwargs': kwargs}
-                q = Queue.Queue()
-                self._queue.put((method, q, wrargs))
-                res = q.get()
-                q.task_done()
-
-                if isinstance(res, exceptions.BaseException):
-                    # XXX should get the original bt
-                    raise res
-                return res
-            else:
-                logger.warning("tried to call proxied meth "
-                               "but stopped is set: %s" %
-                               (method,))
-
-        rgetattr = object.__getattribute__
-
-        if attr != "_db":
-            proxied = partial(__proxied_mth, attr)
-            return proxied
-
-        # fallback to regular behavior
-        return rgetattr(self, attr)
-
-    def __del__(self):
-        """
-        Do not trust this get called. No guarantees given. Because of a funny
-        dance with the refs and the way the gc works, we should be calling the
-        close method explicitely.
-        """
-        self.close()