diff --git a/frontik/adisp.py b/frontik/adisp.py
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+# -*- coding:utf-8 -*-
+'''
+Adisp is a library that allows structuring code with asynchronous calls and
+callbacks without defining callbacks as separate functions. The code then
+becomes sequential and easy to read. The library is not a framework by itself
+and can be used in other environments that provides asynchronous working model
+(see an example with Tornado server in proxy_example.py).
+
+Usage:
+
+## Organizing calling code
+
+All the magic is done with Python 2.5 decorators that allow for control flow to
+leave a function, do sometihing else for some time and then return into the
+calling function with a result. So the function that makes asynchronous calls
+should look like this:
+
+    @process
+    def my_handler():
+        response = yield some_async_func()
+        data = parse_response(response)
+        result = yield some_other_async_func(data)
+        store_result(result)
+
+Each `yield` is where the function returns and lets the framework around it to
+do its job. And the code after `yield` is what usually goes in a callback.
+
+The @process decorator is needed around such a function. It makes it callable
+as an ordinary function and takes care of dispatching callback calls back into
+it.
+
+## Writing asynchronous function
+
+In the example above functions "some_async_func" and "some_other_async_func"
+are those that actually run an asynchronous process. They should follow two
+conditions:
+
+- accept a "callback" parameter with a callback function that they should call
+  after an asynchronous process is finished
+- a callback should be called with one parameter -- the result
+- be wrapped in the @async decorator
+
+The @async decorator makes a function call lazy allowing the @process that
+calls it to provide a callback to call.
+
+Using async with @-syntax is most convenient when you write your own
+asynchronous function (and can make your callback parameter to be named
+"callback"). But when you want to call some library function you can wrap it in
+async in place.
+
+    # call http.fetch(url, callback=callback)
+    result = yield async(http.fetch)
+
+    # call http.fetch(url, cb=safewrap(callback))
+    result = yield async(http.fetch, cbname='cb', cbwrapper=safewrap)(url)
+
+Here you can use two optional parameters for async:
+
+- `cbname`: a name of a parameter in which the function expects callbacks
+- `cbwrapper`: a wrapper for the callback iself that will be applied before
+  calling it
+
+## Chain calls
+
+@async function can also be @process'es allowing to effectively chain
+asynchronous calls as it can be done with normal functions. In this case the
+@async decorator shuold be the outer one:
+
+    @async
+    @process
+    def async_calling_other_asyncs(arg, callback):
+        # ....
+
+## Multiple asynchronous calls
+
+The library also allows to call multiple asynchronous functions in parallel and
+get all their result for processing at once:
+
+    @async
+    def async_http_get(url, callback):
+        # get url asynchronously
+        # call callback(response) at the end
+
+    @process
+    def get_stat():
+        urls = ['http://.../', 'http://.../', ... ]
+        responses = yield map(async_http_get, urls)
+
+After *all* the asynchronous calls will complete `responses` will be a list of
+responses corresponding to given urls.
+'''
+from functools import partial
+
+class CallbackDispatcher(object):
+    def __init__(self, generator):
+        self.g = generator
+        try:
+            self.call(self.g.next())
+        except StopIteration:
+            pass
+
+    def _send_result(self, results, single):
+        try:
+            result = results[0] if single else results
+            self.call(self.g.send(result))
+        except StopIteration:
+            pass
+
+    def call(self, callers):
+        single = not hasattr(callers, '__iter__')
+        if single:
+            callers = [callers]
+        self.call_count = len(list(callers))
+        results = [None] * self.call_count
+        if self.call_count == 0:
+            self._send_result(results, single)
+        else:
+            for count, caller in enumerate(callers):
+                caller(callback=partial(self.callback, results, count, single))
+
+    def callback(self, results, index, single, arg):
+        self.call_count -= 1
+        results[index] = arg
+        if self.call_count > 0:
+            return
+        self._send_result(results, single)
+
+def process(func):
+    def wrapper(*args, **kwargs):
+        CallbackDispatcher(func(*args, **kwargs))
+    return wrapper
+
+def async(func, cbname='callback', cbwrapper=lambda x: x):
+    def wrapper(*args, **kwargs):
+        def caller(callback):
+            kwargs[cbname] = cbwrapper(callback)
+            return func(*args, **kwargs)
+        return caller
+    return wrapper