diff options
Diffstat (limited to 'src/leap/utils')
-rw-r--r-- | src/leap/utils/__init__.py | 0 | ||||
-rw-r--r-- | src/leap/utils/coroutines.py | 107 | ||||
-rw-r--r-- | src/leap/utils/leap_argparse.py | 20 |
3 files changed, 0 insertions, 127 deletions
diff --git a/src/leap/utils/__init__.py b/src/leap/utils/__init__.py deleted file mode 100644 index e69de29b..00000000 --- a/src/leap/utils/__init__.py +++ /dev/null diff --git a/src/leap/utils/coroutines.py b/src/leap/utils/coroutines.py deleted file mode 100644 index 5e25eb63..00000000 --- a/src/leap/utils/coroutines.py +++ /dev/null @@ -1,107 +0,0 @@ -# the problem of watching a stdout pipe from -# openvpn binary: using subprocess and coroutines -# acting as event consumers - -from __future__ import division, print_function - -from subprocess import PIPE, Popen -import sys -from threading import Thread - -ON_POSIX = 'posix' in sys.builtin_module_names - - -# -# Coroutines goodies -# - -def coroutine(func): - def start(*args, **kwargs): - cr = func(*args, **kwargs) - cr.next() - return cr - return start - - -@coroutine -def process_events(callback): - """ - coroutine loop that receives - events sent and dispatch the callback. - :param callback: callback to be called\ -for each event - :type callback: callable - """ - try: - while True: - m = (yield) - if callable(callback): - callback(m) - else: - #XXX log instead - print('not a callable passed') - except GeneratorExit: - return - -# -# Threads -# - - -def launch_thread(target, args): - """ - launch and demonize thread. - :param target: target function that will run in thread - :type target: function - :param args: args to be passed to thread - :type args: list - """ - t = Thread(target=target, - args=args) - t.daemon = True - t.start() - return t - - -def watch_output(out, observers): - """ - initializes dict of observer coroutines - and pushes lines to each of them as they are received - from the watched output. - :param out: stdout of a process. - :type out: fd - :param observers: tuple of coroutines to send data\ -for each event - :type ovservers: tuple - """ - observer_dict = {observer: process_events(observer) - for observer in observers} - for line in iter(out.readline, b''): - for obs in observer_dict: - observer_dict[obs].send(line) - out.close() - - -def spawn_and_watch_process(command, args, observers=None): - """ - spawns a subprocess with command, args, and launch - a watcher thread. - :param command: command to be executed in the subprocess - :type command: str - :param args: arguments - :type args: list - :param observers: tuple of observer functions to be called \ -for each line in the subprocess output. - :type observers: tuple - :return: a tuple containing the child process instance, and watcher_thread, - :rtype: (Subprocess, Thread) - """ - subp = Popen([command] + args, - stdout=PIPE, - stderr=PIPE, - bufsize=1, - close_fds=ON_POSIX) - watcher = launch_thread( - watch_output, - (subp.stdout, observers)) - return subp, watcher diff --git a/src/leap/utils/leap_argparse.py b/src/leap/utils/leap_argparse.py deleted file mode 100644 index 9c355134..00000000 --- a/src/leap/utils/leap_argparse.py +++ /dev/null @@ -1,20 +0,0 @@ -import argparse - - -def build_parser(): - epilog = "Copyright 2012 The Leap Project" - parser = argparse.ArgumentParser(description=""" -Launches main LEAP Client""", epilog=epilog) - parser.add_argument('--debug', action="store_true", - help='launches in debug mode') - parser.add_argument('--config', metavar="CONFIG FILE", nargs='?', - action="store", dest="config_file", - type=argparse.FileType('r'), - help='optional config file') - return parser - - -def init_leapc_args(): - parser = build_parser() - opts = parser.parse_args() - return parser, opts |