summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/leap/bitmask/_version.py206
-rw-r--r--src/leap/bitmask/backend/taskthread.py296
2 files changed, 305 insertions, 197 deletions
diff --git a/src/leap/bitmask/_version.py b/src/leap/bitmask/_version.py
index 412b0c9e..8e2b1c8c 100644
--- a/src/leap/bitmask/_version.py
+++ b/src/leap/bitmask/_version.py
@@ -1,201 +1,13 @@
-IN_LONG_VERSION_PY = True
-# This file helps to compute a version number in source trees obtained from
-# git-archive tarball (such as those provided by githubs download-from-tag
-# feature). Distribution tarballs (build by setup.py sdist) and build
-# directories (produced by setup.py build) will contain a much shorter file
-# that just contains the computed version number.
+# This file was generated by the `freeze_debianver` command in setup.py
+# Using 'versioneer.py' (0.7+) from
+# revision-control system data, or from the parent directory name of an
+# unpacked source archive. Distribution tarballs contain a pre-generated copy
+# of this file.
-# This file is released into the public domain. Generated by
-# versioneer-0.7+ (https://github.com/warner/python-versioneer)
+version_version = '0.9.0rc2'
+version_full = 'f4547479fc050f338845f4f546d8dd7c0e4512eb'
-# these strings will be replaced by git during git-archive
-git_refnames = "$Format:%d$"
-git_full = "$Format:%H$"
-
-import subprocess
-import sys
-import re
-import os.path
-
-
-def run_command(args, cwd=None, verbose=False):
- try:
- # remember shell=False, so use git.cmd on windows, not just git
- p = subprocess.Popen(args, stdout=subprocess.PIPE, cwd=cwd)
- except EnvironmentError:
- e = sys.exc_info()[1]
- if verbose:
- print("unable to run %s" % args[0])
- print(e)
- return None
- stdout = p.communicate()[0].strip()
- if sys.version >= '3':
- stdout = stdout.decode()
- if p.returncode != 0:
- if verbose:
- print("unable to run %s (error)" % args[0])
- return None
- return stdout
-
-
-def get_expanded_variables(versionfile_source):
- # the code embedded in _version.py can just fetch the value of these
- # variables. When used from setup.py, we don't want to import
- # _version.py, so we do it with a regexp instead. This function is not
- # used from _version.py.
- variables = {}
- try:
- for line in open(versionfile_source, "r").readlines():
- if line.strip().startswith("git_refnames ="):
- mo = re.search(r'=\s*"(.*)"', line)
- if mo:
- variables["refnames"] = mo.group(1)
- if line.strip().startswith("git_full ="):
- mo = re.search(r'=\s*"(.*)"', line)
- if mo:
- variables["full"] = mo.group(1)
- except EnvironmentError:
- pass
- return variables
-
-
-def versions_from_expanded_variables(variables, tag_prefix, verbose=False):
- refnames = variables["refnames"].strip()
- if refnames.startswith("$Format"):
- if verbose:
- print("variables are unexpanded, not using")
- return {} # unexpanded, so not in an unpacked git-archive tarball
- refs = set([r.strip() for r in refnames.strip("()").split(",")])
- for ref in list(refs):
- if not re.search(r'\d', ref):
- if verbose:
- print("discarding '%s', no digits" % ref)
- refs.discard(ref)
- # Assume all version tags have a digit. git's %d expansion
- # behaves like git log --decorate=short and strips out the
- # refs/heads/ and refs/tags/ prefixes that would let us
- # distinguish between branches and tags. By ignoring refnames
- # without digits, we filter out many common branch names like
- # "release" and "stabilization", as well as "HEAD" and "master".
- if verbose:
- print("remaining refs: %s" % ",".join(sorted(refs)))
- for ref in sorted(refs):
- # sorting will prefer e.g. "2.0" over "2.0rc1"
- if ref.startswith(tag_prefix):
- r = ref[len(tag_prefix):]
- if verbose:
- print("picking %s" % r)
- return {"version": r,
- "full": variables["full"].strip()}
- # no suitable tags, so we use the full revision id
- if verbose:
- print("no suitable tags, using full revision id")
- return {"version": variables["full"].strip(),
- "full": variables["full"].strip()}
-
-
-def versions_from_vcs(tag_prefix, versionfile_source, verbose=False):
- # this runs 'git' from the root of the source tree. That either means
- # someone ran a setup.py command (and this code is in versioneer.py, so
- # IN_LONG_VERSION_PY=False, thus the containing directory is the root of
- # the source tree), or someone ran a project-specific entry point (and
- # this code is in _version.py, so IN_LONG_VERSION_PY=True, thus the
- # containing directory is somewhere deeper in the source tree). This only
- # gets called if the git-archive 'subst' variables were *not* expanded,
- # and _version.py hasn't already been rewritten with a short version
- # string, meaning we're inside a checked out source tree.
-
- try:
- here = os.path.abspath(__file__)
- except NameError:
- # some py2exe/bbfreeze/non-CPython implementations don't do __file__
- return {} # not always correct
-
- # versionfile_source is the relative path from the top of the source tree
- # (where the .git directory might live) to this file. Invert this to find
- # the root from __file__.
- root = here
- if IN_LONG_VERSION_PY:
- for i in range(len(versionfile_source.split("/"))):
- root = os.path.dirname(root)
- else:
- root = os.path.dirname(here)
- if not os.path.exists(os.path.join(root, ".git")):
- if verbose:
- print("no .git in %s" % root)
- return {}
-
- GIT = "git"
- if sys.platform == "win32":
- GIT = "git.cmd"
- stdout = run_command([GIT, "describe", "--tags", "--dirty", "--always"],
- cwd=root)
- if stdout is None:
- return {}
- if not stdout.startswith(tag_prefix):
- if verbose:
- print("tag '%s' doesn't start with prefix '%s'" % (
- stdout, tag_prefix))
- return {}
- tag = stdout[len(tag_prefix):]
- stdout = run_command([GIT, "rev-parse", "HEAD"], cwd=root)
- if stdout is None:
- return {}
- full = stdout.strip()
- if tag.endswith("-dirty"):
- full += "-dirty"
- return {"version": tag, "full": full}
-
-
-def versions_from_parentdir(parentdir_prefix, versionfile_source,
- verbose=False):
- if IN_LONG_VERSION_PY:
- # We're running from _version.py. If it's from a source tree
- # (execute-in-place), we can work upwards to find the root of the
- # tree, and then check the parent directory for a version string. If
- # it's in an installed application, there's no hope.
- try:
- here = os.path.abspath(__file__)
- except NameError:
- # py2exe/bbfreeze/non-CPython don't have __file__
- return {} # without __file__, we have no hope
- # versionfile_source is the relative path from the top of the source
- # tree to _version.py. Invert this to find the root from __file__.
- root = here
- for i in range(len(versionfile_source.split("/"))):
- root = os.path.dirname(root)
- else:
- # we're running from versioneer.py, which means we're running from
- # the setup.py in a source tree. sys.argv[0] is setup.py in the root.
- here = os.path.abspath(sys.argv[0])
- root = os.path.dirname(here)
-
- # Source tarballs conventionally unpack into a directory that includes
- # both the project name and a version string.
- dirname = os.path.basename(root)
- if not dirname.startswith(parentdir_prefix):
- if verbose:
- print("guessing rootdir is '%s', but '%s' "
- "doesn't start with prefix '%s'" %
- (root, dirname, parentdir_prefix))
- return None
- return {"version": dirname[len(parentdir_prefix):], "full": ""}
-
-tag_prefix = ""
-parentdir_prefix = "bitmask-"
-versionfile_source = "src/leap/bitmask/_version.py"
-
-
-def get_versions(default={"version": "unknown", "full": ""}, verbose=False):
- variables = {"refnames": git_refnames, "full": git_full}
- ver = versions_from_expanded_variables(variables, tag_prefix, verbose)
- if not ver:
- ver = versions_from_vcs(tag_prefix, versionfile_source, verbose)
- if not ver:
- ver = versions_from_parentdir(parentdir_prefix, versionfile_source,
- verbose)
- if not ver:
- ver = default
- return ver
+def get_versions(default={}, verbose=False):
+ return {'version': version_version, 'full': version_full}
diff --git a/src/leap/bitmask/backend/taskthread.py b/src/leap/bitmask/backend/taskthread.py
new file mode 100644
index 00000000..a734a829
--- /dev/null
+++ b/src/leap/bitmask/backend/taskthread.py
@@ -0,0 +1,296 @@
+# Copyright 2013 Hewlett-Packard Development Company, L.P.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+import logging
+import threading
+
+__version__ = '1.4'
+
+
+logger = logging.getLogger(__name__)
+
+
+class TaskInProcessException(BaseException):
+ pass
+
+
+class TaskThread(threading.Thread):
+ """
+ A thread object that repeats a task.
+
+ Usage example::
+
+ from taskthread import TaskThread
+
+ import time
+
+ def my_task(*args, **kwargs):
+ print args, kwargs
+
+ task_thread = TaskThread(my_task)
+ task_thread.start()
+ for i in xrange(10):
+ task_thread.run_task()
+ task_thread.join_task()
+ task_thread.join()
+
+ .. note:: If :py:meth:`~TaskThread.run_task` is
+ invoked while run_task is in progress,
+ :py:class:`~.TaskInProcessException` will
+ be raised.
+
+ :param task:
+ A ``function``. This param is the task to execute when
+ run_task is called.
+ :param event:
+ A ``threading.Event``. This event will be set when run_task
+ is called. The default value is a new event, but may be
+ specified for testing purposes.
+ """
+
+ daemon = True
+ '''
+ Threads marked as daemon will be terminated.
+ '''
+ def __init__(self, task, event=threading.Event(),
+ *args, **kwargs):
+ super(TaskThread, self).__init__()
+ self.task = task
+ self.task_event = event
+ self.running = True
+ self.running_lock = threading.Lock()
+ self.in_task = False
+ self.task_complete = threading.Event()
+ self.args = args
+ self.kwargs = kwargs
+
+ def run(self):
+ """
+ Called by threading.Thread, this runs in the new thread.
+ """
+ while True:
+ self.task_event.wait()
+ if not self.running:
+ logger.debug("TaskThread exiting")
+ return
+ logger.debug("TaskThread starting task")
+ with self.running_lock:
+ self.task_event.clear()
+ self.task_complete.clear()
+ self.task(*self.args, **self.kwargs)
+ with self.running_lock:
+ self.in_task = False
+ self.task_complete.set()
+
+ def run_task(self, *args, **kwargs):
+ """
+ Run an instance of the task.
+
+ :param args:
+ The arguments to pass to the task.
+
+ :param kwargs:
+ The keyword arguments to pass to the task.
+ """
+ # Don't allow this call if the thread is currently
+ # in a task.
+ with self.running_lock:
+ if self.in_task:
+ raise TaskInProcessException()
+ self.in_task = True
+ logger.debug("Waking up the thread")
+ self.args = args
+ self.kwargs = kwargs
+ # Wake up the thread to do it's thing
+ self.task_event.set()
+
+ def join_task(self, time_out):
+ """
+ Wait for the currently running task to complete.
+
+ :param time_out:
+ An ``int``. The amount of time to wait for the
+ task to finish.
+ """
+ with self.running_lock:
+ if not self.in_task:
+ return
+
+ success = self.task_complete.wait(time_out)
+ if success:
+ self.task_complete.clear()
+ return success
+
+ def join(self, timeout=None):
+ """
+ Wait for the task to finish
+ """
+ self.running = False
+ self.task_event.set()
+ super(TaskThread, self).join(timeout=timeout)
+
+
+class TimerTask(object):
+ """
+ An object that executes a commit function at a given interval.
+ This class is driven by a TaskThread. A new TaskThread will be
+ created the first time :py:meth:`.~start` is called. All
+ subsequent calls to start will reuse the same thread.
+
+ Usage example::
+
+ from taskthread import TimerTask
+ import time
+
+ count = 0
+ def get_count():
+ return count
+ def execute():
+ print "Count: %d" % count
+
+ task = TimerTask(execute,
+ timeout=10,
+ count_fcn=get_count,
+ threshold=1)
+
+ task.start()
+
+ for i in xrange(100000):
+ count += 1
+ time.sleep(1)
+ task.stop()
+ count = 0
+ task.start()
+ for i in xrange(100000):
+ count += 1
+ time.sleep(1)
+ task.shutdown()
+
+ :param execute_fcn:
+ A `function`. This function will be executed on each time interval.
+
+ :param delay:
+ An `int`. The delay in **seconds** invocations of
+ `execute_fcn`. Default: `10`.
+
+ :param count_fcn:
+ A `function`. This function returns a current count. If the count
+ has not changed more the `threshold` since the last invocation of
+ `execute_fcn`, `execute_fcn` will not be called again. If not
+ specified, `execute_fcn` will be called each time the timer fires.
+ **Optional**. If count_fcn is specified, ``threshold`` is required.
+
+ :param threshold:
+ An `int`. Specifies the minimum delta in `count_fcn` that must be
+ met for `execute_fcn` to be invoked. **Optional**. Must be
+ specified in conjunction with `count_fcn`.
+
+ """
+ def __init__(self, execute_fcn, delay=10, count_fcn=None, threshold=None):
+ self.running = True
+ self.execute_fcn = execute_fcn
+ self.last_count = 0
+ self.event = threading.Event()
+ self.delay = delay
+ self.thread = None
+ self.running_lock = threading.RLock()
+ if bool(threshold) != bool(count_fcn):
+ raise ValueError("Must specify threshold "
+ "and count_fcn, or neither")
+
+ self.count_fcn = count_fcn
+ self.threshold = threshold
+
+ def start(self):
+ """
+ Start the task. This starts a :py:class:`.~TaskThread`, and starts
+ running run_threshold_timer on the thread.
+
+ """
+ if not self.thread:
+ logger.debug('Starting up the taskthread')
+ self.thread = TaskThread(self._run_threshold_timer)
+ self.thread.start()
+
+ if self.threshold:
+ self.last_count = 0
+
+ logger.debug('Running the task')
+ self.running = True
+ self.thread.run_task()
+
+ def stop(self):
+ """
+ Stop the task, leaving the :py:class:`.~TaskThread` running
+ so start can be called again.
+
+ """
+ logger.debug('Stopping the task')
+ wait = False
+ with self.running_lock:
+ if self.running:
+ wait = True
+ self.running = False
+ if wait:
+ self.event.set()
+ self.thread.join_task(2)
+
+ def shutdown(self):
+ """
+ Close down the task thread and stop the task if it is running.
+
+ """
+ logger.debug('Shutting down the task')
+ self.stop()
+ self.thread.join(2)
+
+ def _exec_if_threshold_met(self):
+ new_count = self.count_fcn()
+ logger.debug('new_count: %d' % new_count)
+ if new_count >= self.last_count + self.threshold:
+ self.execute_fcn()
+ self.last_count = new_count
+
+ def _exec(self):
+ if self.count_fcn:
+ self._exec_if_threshold_met()
+ else:
+ self.execute_fcn()
+
+ def _wait(self):
+ self.event.wait(timeout=self.delay)
+ self.event.clear()
+ logger.debug('Task woken up')
+
+ def _exit_loop(self):
+ """
+ If self.running is false, it means the task should shut down.
+ """
+ exit_loop = False
+ with self.running_lock:
+ if not self.running:
+ exit_loop = True
+ logger.debug('Task shutting down')
+ return exit_loop
+
+ def _run_threshold_timer(self):
+ """
+ Main loop of the timer task
+
+ """
+ logger.debug('In Task')
+ while True:
+ self._wait()
+ if self._exit_loop():
+ return
+ self._exec()