1 files changed, 76 insertions, 0 deletions
diff --git a/plugins/msgqueue.py b/plugins/msgqueue.py
new file mode 100644
index 0000000..25fe2b0
--- /dev/null
+++ b/plugins/msgqueue.py
@@ -0,0 +1,76 @@
+from collections import deque
+from loggers import debuglog
+from logicmanager import logic_manager
+
+
+__all__ = [ 'PLUGIN', 'init', 'delayed_functions', 'reload_function' ]
+
+
+PLUGIN = {
+    'name': 'msgqueue',
+    'requires': (),
+    'blocks': (),
+}
+
+
+reloaded_functions = {}
+event_queue = deque()
+_times = { 'next_event' : 0 }
+
+delayed_functions = {
+    # 'net.mapserv.cmsg_chat_whisper': 7.5,
+    # 'net.mapserv.cmsg_chat_message': 3.5,
+}
+
+
+def delayed_function(func_name, delay):
+
+    def func(*args, **kwargs):
+        call = (delay, reloaded_functions[func_name], args, kwargs)
+        event_queue.append(call)
+
+    return func
+
+
+def reload_function(name, delay):
+
+    def recurs_import(name):
+        m = __import__(name)
+        for n in name.split('.')[1:]:
+            m = getattr(m, n)
+        return m
+
+    ss = name.rsplit('.', 1)
+
+    if len(ss) == 1:
+        ss.insert(0, 'net.mapserv')
+        name = 'net.mapserv.' + name
+
+    try:
+        module = recurs_import(ss[0])
+        func_name = ss[1]
+        reloaded_functions[name] = getattr(module, func_name)
+        setattr(module, func_name, delayed_function(name, delay))
+        debuglog.debug('function %s wrapped with delay %d', name, delay)
+
+    except Exception as e:
+        debuglog.error('error wrapping function %s: %s', name, e)
+
+
+def msgq_logic(ts):
+    if len(event_queue):
+        if ts > _times['next_event']:
+            delay, func, args, kwargs = event_queue.popleft()
+            _times['next_event'] = ts + delay
+            func(*args, **kwargs)
+
+
+def init(config):
+    section = PLUGIN['name']
+    for option in config.options(section):
+        delayed_functions[option] = config.getfloat(section, option)
+
+    for func_name, delay in delayed_functions.iteritems():
+        reload_function(func_name, delay)
+
+    logic_manager.add_logic(msgq_logic)