add support for cyclic garbage collection to eTimer and eSocketNotifier
[vuplus_dvbapp] / lib / base / ebase.cpp
index 465cea9..bf41dc0 100644 (file)
@@ -5,6 +5,7 @@
 #include <errno.h>
 
 #include <lib/base/eerror.h>
+#include <lib/base/elock.h>
 
 eSocketNotifier::eSocketNotifier(eMainloop *context, int fd, int requested, bool startnow): context(*context), fd(fd), state(0), requested(requested)
 {
@@ -23,7 +24,7 @@ void eSocketNotifier::start()
                stop();
 
        context.addSocketNotifier(this);
-       state=1;
+       state=2;  // running but not in poll yet
 }
 
 void eSocketNotifier::stop()
@@ -43,15 +44,32 @@ void eTimer::start(long msek, bool singleShot)
        bActive = true;
        bSingleShot = singleShot;
        interval = msek;
-       gettimeofday(&nextActivation, 0);               
+       gettimeofday(&nextActivation, 0);
+       nextActivation.tv_sec -= context.getTimeOffset();
 //     eDebug("this = %p\nnow sec = %d, usec = %d\nadd %d msec", this, nextActivation.tv_sec, nextActivation.tv_usec, msek);
        nextActivation += (msek<0 ? 0 : msek);
 //     eDebug("next Activation sec = %d, usec = %d", nextActivation.tv_sec, nextActivation.tv_usec );
        context.addTimer(this);
 }
 
+void eTimer::startLongTimer( int seconds )
+{
+       if (bActive)
+               stop();
+
+       bActive = bSingleShot = true;
+       interval = 0;
+       gettimeofday(&nextActivation, 0);
+       nextActivation.tv_sec -= context.getTimeOffset();
+//     eDebug("this = %p\nnow sec = %d, usec = %d\nadd %d sec", this, nextActivation.tv_sec, nextActivation.tv_usec, seconds);
+       if ( seconds > 0 )
+               nextActivation.tv_sec += seconds;
+//     eDebug("next Activation sec = %d, usec = %d", nextActivation.tv_sec, nextActivation.tv_usec );
+       context.addTimer(this);
+}
+
 void eTimer::stop()
-{      
+{
        if (bActive)
        {
                bActive=false;
@@ -67,7 +85,7 @@ void eTimer::changeInterval(long msek)
                nextActivation -= interval;  // sub old interval
        }
        else
-               bActive=true;   // then activate Timer
+               bActive=true; // then activate Timer
 
        interval = msek;                                                // set new Interval
        nextActivation += interval;             // calc nextActivation
@@ -75,12 +93,8 @@ void eTimer::changeInterval(long msek)
        context.addTimer(this);                         // add Timer to context TimerList
 }
 
-void eTimer::activate()   // Internal Function... called from eApplication
+void eTimer::activate()   // Internal Funktion... called from eApplication
 {
-       timeval now;
-       gettimeofday(&now, 0);
-//     eDebug("this = %p\nnow sec = %d, usec = %d\nnextActivation sec = %d, usec = %d", this, now.tv_sec, now.tv_usec, nextActivation.tv_sec, nextActivation.tv_usec );
-//     eDebug("Timer emitted");
        context.removeTimer(this);
 
        if (!bSingleShot)
@@ -94,151 +108,702 @@ void eTimer::activate()   // Internal Function... called from eApplication
        /*emit*/ timeout();
 }
 
+void eTimer::addTimeOffset( int offset )
+{
+       nextActivation.tv_sec += offset;
+}
+
 // mainloop
+ePtrList<eMainloop> eMainloop::existing_loops;
+
+eMainloop::~eMainloop()
+{
+       existing_loops.remove(this);
+       pthread_mutex_destroy(&recalcLock);
+       for (std::map<int, eSocketNotifier*>::iterator it(notifiers.begin());it != notifiers.end();++it)
+               it->second->stop();
+       while(m_timer_list.begin() != m_timer_list.end())
+               m_timer_list.begin()->stop();
+}
 
 void eMainloop::addSocketNotifier(eSocketNotifier *sn)
 {
-       notifiers.insert(std::pair<int,eSocketNotifier*> (sn->getFD(), sn));
+       int fd = sn->getFD();
+       ASSERT(notifiers.find(fd) == notifiers.end());
+       notifiers[fd]=sn;
 }
 
 void eMainloop::removeSocketNotifier(eSocketNotifier *sn)
 {
-       notifiers.erase(sn->getFD());
-}
-
-void eMainloop::processOneEvent()
-{
-               /* notes:
-                 - we should use epoll(4)
-                 - timer are checked twice. there was a strong reason for it, but i can't remember. (FIXME)
-                 - for each time, we gettimeofday() and check wether the timer should fire.
-                   we should do this all better - we know how long the poll last, so we know which
-                   timers should fire. Problem is that a timer handler could have required so
-                   much time that another timer fired.
-                   
-                   A probably structure could look
-                   
-                   while (1)
-                   {
-                           time = gettimeofday()
-                           timeout = calculate_pending_timers(time);
-                   
-                     doPoll(timeout or infinite);
-                       
-                       if (poll_had_results)
-                               handle_poll_handler();
-                       else
-                                   fire_timers(time + timeout)
-                         }
-                         
-                         the gettimeofday() call is required because fire_timers could last more
-                         than nothing.
-                         
-                         when poll did no timeout, we don't handle timers, as this will be done
-                         in the next iteration (without adding overhead - we had to get the new
-                         time anyway
-               */
-
-               // first, process pending timers...
-       long usec=0;
-
-       while (TimerList && (usec = timeout_usec( TimerList.begin()->getNextActivation() ) ) <= 0 )
-               TimerList.begin()->activate();
+       int fd = sn->getFD();
+       std::map<int,eSocketNotifier*>::iterator i(notifiers.find(fd));
+       if (i != notifiers.end())
+               return notifiers.erase(i);
+       eFatal("removed socket notifier which is not present");
+}
 
-               // build the poll aray
-       int fdAnz = notifiers.size();
-       pollfd* pfd = new pollfd[fdAnz];  // make new pollfd array
+int eMainloop::processOneEvent(unsigned int twisted_timeout, PyObject **res, ePyObject additional)
+{
+       int return_reason = 0;
+               /* get current time */
 
-       std::map<int,eSocketNotifier*>::iterator it(notifiers.begin());
-       for (int i=0; i < fdAnz; i++, it++)
+       if (additional && !PyDict_Check(additional))
+               eFatal("additional, but it's not dict");
+
+       if (additional && !res)
+               eFatal("additional, but no res");
+
+       long poll_timeout = -1; /* infinite in case of empty timer list */
+
+       if (!m_timer_list.empty() || twisted_timeout > 0)
        {
+               applyTimeOffset();
+               if (!m_timer_list.empty())
+               {
+                       /* process all timers which are ready. first remove them out of the list. */
+                       while (!m_timer_list.empty() && (poll_timeout = timeout_usec( m_timer_list.begin()->getNextActivation() ) ) <= 0 )
+                       {
+                               m_timer_list.begin()->activate();
+                               applyTimeOffset();
+                       }
+                       if (poll_timeout < 0)
+                               poll_timeout = 0;
+                       else /* convert us to ms */
+                               poll_timeout /= 1000;
+               }
+       }
+
+       if ((twisted_timeout > 0) && (poll_timeout > 0) && ((unsigned int)poll_timeout > twisted_timeout))
+       {
+               poll_timeout = twisted_timeout;
+               return_reason = 1;
+       }
+
+       int nativecount=notifiers.size(),
+               fdcount=nativecount,
+               ret=0;
+
+       if (additional)
+               fdcount += PyDict_Size(additional);
+
+               // build the poll aray
+       pollfd pfd[fdcount];  // make new pollfd array
+       std::map<int,eSocketNotifier*>::iterator it = notifiers.begin();
+       int i=0;
+       for (; i < nativecount; ++i, ++it)
+       {
+               it->second->state = 1; // running and in poll
                pfd[i].fd = it->first;
                pfd[i].events = it->second->getRequested();
        }
 
-               // to the poll. When there are no timers, we have an infinite timeout
-       int ret=poll(pfd, fdAnz, TimerList ? usec / 1000 : -1);  // convert to us
-
-       if (ret>0)
+       if (additional)
        {
-               for (int i=0; i < fdAnz ; i++)
-               {
-                       if( notifiers.find(pfd[i].fd) == notifiers.end())
-                               continue;
+               PyObject *key, *val;
+               int pos=0;
+               while (PyDict_Next(additional, &pos, &key, &val)) {
+                       pfd[i].fd = PyObject_AsFileDescriptor(key);
+                       pfd[i++].events = PyInt_AsLong(val);
+               }
+       }
 
-                       int req = notifiers[pfd[i].fd]->getRequested();
+       m_is_idle = 1;
 
-                       if ( pfd[i].revents & req )
-                       {
-                               notifiers[pfd[i].fd]->activate(pfd[i].revents);
+       if (this == eApp)
+       {
+               Py_BEGIN_ALLOW_THREADS
+               ret = ::poll(pfd, fdcount, poll_timeout);
+               Py_END_ALLOW_THREADS
+       } else
+               ret = ::poll(pfd, fdcount, poll_timeout);
+       
+       m_is_idle = 0;
 
-                               if (!--ret)
-                                       break;
-                       } else if (pfd[i].revents & (POLLERR|POLLHUP|POLLNVAL))
-                               eFatal("poll: unhandled POLLERR/HUP/NVAL for fd %d(%d) -> FIX YOUR CODE", pfd[i].fd,pfd[i].revents);
+                       /* ret > 0 means that there are some active poll entries. */
+       if (ret > 0)
+       {
+               int i=0;
+               return_reason = 0;
+               for (; i < nativecount; ++i)
+               {
+                       if (pfd[i].revents)
+                       {
+                               it = notifiers.find(pfd[i].fd);
+                               if (it != notifiers.end()
+                                       && it->second->state == 1) // added and in poll
+                               {
+                                       int req = it->second->getRequested();
+                                       if (pfd[i].revents & req)
+                                               it->second->activate(pfd[i].revents & req);
+                                       pfd[i].revents &= ~req;
+                               }
+                               if (pfd[i].revents & (POLLERR|POLLHUP|POLLNVAL))
+                                       eDebug("poll: unhandled POLLERR/HUP/NVAL for fd %d(%d)", pfd[i].fd, pfd[i].revents);
+                       }
                }
-       } else if (ret<0)
+               for (; i < fdcount; ++i)
+               {
+                       if (pfd[i].revents)
+                       {
+                               if (!*res)
+                                       *res = PyList_New(0);
+                               ePyObject it = PyTuple_New(2);
+                               PyTuple_SET_ITEM(it, 0, PyInt_FromLong(pfd[i].fd));
+                               PyTuple_SET_ITEM(it, 1, PyInt_FromLong(pfd[i].revents));
+                               PyList_Append(*res, it);
+                               Py_DECREF(it);
+                       }
+               }
+       }
+       else if (ret < 0)
        {
-                       /* when we got a signal, we get EINTR. we do not care, 
-                          because we check current time in timers anyway. */
+                       /* when we got a signal, we get EINTR. */
                if (errno != EINTR)
                        eDebug("poll made error (%m)");
-       } 
+               else
+                       return_reason = 2; /* don't assume the timeout has passed when we got a signal */
+       }
 
-               // check timer...
-       while ( TimerList && timeout_usec( TimerList.begin()->getNextActivation() ) <= 0 )
-               TimerList.begin()->activate();
+       return return_reason;
+}
 
-       delete [] pfd;
+void eMainloop::addTimer(eTimer* e)
+{
+       m_timer_list.insert_in_order(e);
 }
 
+void eMainloop::removeTimer(eTimer* e)
+{
+       m_timer_list.remove(e);
+}
 
-int eMainloop::exec()
+int eMainloop::iterate(unsigned int twisted_timeout, PyObject **res, ePyObject dict)
 {
-       if (!loop_level)
+       int ret = 0;
+
+       if (twisted_timeout)
        {
-               app_quit_now = false;
-               enter_loop();
+               gettimeofday(&m_twisted_timer, 0);
+               m_twisted_timer += twisted_timeout;
        }
+
+               /* TODO: this code just became ugly. fix that. */
+       do
+       {
+               if (m_interrupt_requested)
+               {
+                       m_interrupt_requested = 0;
+                       return 0;
+               }
+
+               if (app_quit_now)
+                       return -1;
+
+               int to = 0;
+               if (twisted_timeout)
+               {
+                       timeval now, timeout;
+                       gettimeofday(&now, 0);
+                       m_twisted_timer += time_offset;  // apply pending offset
+                       if (m_twisted_timer<=now) // timeout
+                               return 0;
+                       timeout = m_twisted_timer - now;
+                       to = timeout.tv_sec * 1000 + timeout.tv_usec / 1000;
+                       // remove pending offset .. it is re-applied in next call of processOneEvent.. applyTimeOffset
+                       m_twisted_timer -= time_offset;  
+               }
+               ret = processOneEvent(to, res, dict);
+       } while ( !ret && !(res && *res) );
+
+       return ret;
+}
+
+int eMainloop::runLoop()
+{
+       while (!app_quit_now)
+               iterate();
        return retval;
 }
 
-       /* use with care! better: don't use it anymore. it was used for gui stuff, but 
-                doesn't allow multiple paths (or active dialogs, if you want it that way.) */
-void eMainloop::enter_loop()
+void eMainloop::reset()
 {
-       loop_level++;
+       app_quit_now=false;
+}
 
-       // Status der vorhandenen Loop merken
-       bool old_exit_loop = app_exit_loop;
-       
-       app_exit_loop = false;
+PyObject *eMainloop::poll(ePyObject timeout, ePyObject dict)
+{
+       PyObject *res=0;
+
+       if (app_quit_now)
+               Py_RETURN_NONE;
+
+       int twisted_timeout = (timeout == Py_None) ? 0 : PyInt_AsLong(timeout);
+
+       iterate(twisted_timeout, &res, dict);
+       if (res)
+               return res;
+
+       return PyList_New(0); /* return empty list on timeout */
+}
+
+void eMainloop::interruptPoll()
+{
+       m_interrupt_requested = 1;
+}
+
+void eMainloop::quit(int ret)
+{
+       retval = ret;
+       app_quit_now = true;
+}
+
+void eMainloop::addTimeOffset(int offset)
+{
+       for (ePtrList<eMainloop>::iterator it(existing_loops.begin()); it != existing_loops.end(); ++it )
+               it->addInstanceTimeOffset(offset);
+}
 
-       while (!app_exit_loop && !app_quit_now)
+void eMainloop::addInstanceTimeOffset(int offset)
+{
+       singleLock s(recalcLock);
+       if (m_timer_list.empty())
+               time_offset=0;
+       else
        {
-               processOneEvent();
+               if ( time_offset )
+                       eDebug("time_offset %d avail.. add new offset %d than new is %d",
+                       time_offset, offset, time_offset+offset);
+               time_offset+=offset;
        }
+}
 
-       // wiederherstellen der vorherigen app_exit_loop
-       app_exit_loop = old_exit_loop;
+void eMainloop::applyTimeOffset()
+{
+       singleLock s(recalcLock);
+       if ( time_offset )
+       {
+               for (ePtrList<eTimer>::iterator it(m_timer_list.begin()); it != m_timer_list.end(); ++it )
+                       it->addTimeOffset( time_offset );
+               m_twisted_timer += time_offset;
+               time_offset=0;
+       }
+}
+
+eApplication* eApp = 0;
+
+#include "structmember.h"
+
+extern "C" {
+
+// eTimer replacement
+
+struct eTimerPy
+{
+       PyObject_HEAD
+       eTimer *tm;
+       PyObject *in_weakreflist; /* List of weak references */
+};
+
+static int
+eTimerPy_traverse(eTimerPy *self, visitproc visit, void *arg)
+{
+       PyObject *obj = self->tm->timeout.get();
+       Py_VISIT(obj);
+       return 0;
+}
 
-       loop_level--;
+static int
+eTimerPy_clear(eTimerPy *self)
+{
+       PyObject *obj = self->tm->timeout.get();
+       Py_CLEAR(obj);
+       return 0;
+}
+
+static void
+eTimerPy_dealloc(eTimerPy* self)
+{
+       if (self->in_weakreflist != NULL)
+               PyObject_ClearWeakRefs((PyObject *) self);
+       eTimerPy_clear(self);
+       delete self->tm;
+       self->ob_type->tp_free((PyObject*)self);
+}
+
+static PyObject *
+eTimerPy_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+       eTimerPy *self = (eTimerPy *)type->tp_alloc(type, 0);
+       self->tm = new eTimer(eApp);
+       self->in_weakreflist = NULL;
+       return (PyObject *)self;
+}
+
+static PyObject *
+eTimerPy_is_active(eTimerPy* self)
+{
+       PyObject *ret = NULL;
+       ret = !!self->tm->isActive() ? Py_True : Py_False;
+       Org_Py_INCREF(ret);
+       return ret;
+}
 
-       if (!loop_level)
+static PyObject *
+eTimerPy_start(eTimerPy* self, PyObject *args)
+{
+       long v=0;
+       long singleShot=0;
+       if (PyTuple_Size(args) > 1)
        {
-                       // do something here on exit the last loop
+               if (!PyArg_ParseTuple(args, "ll", &v, &singleShot)) // when 2nd arg is a value
+               {
+                       PyObject *obj=0;
+                       if (!PyArg_ParseTuple(args, "lO", &v, &obj)) // get 2nd arg as python object
+                               return NULL;
+                       else if (obj == Py_True)
+                               singleShot=1;
+                       else if (obj != Py_False)
+                               return NULL;
+               }
        }
+       else if (!PyArg_ParseTuple(args, "l", &v))
+               return NULL;
+       self->tm->start(v, singleShot);
+       Py_RETURN_NONE;
 }
 
-void eMainloop::exit_loop()  // call this to leave the current loop
+static PyObject *
+eTimerPy_start_long(eTimerPy* self, PyObject *args)
 {
-       app_exit_loop = true;   
+       long v=0;
+       if (!PyArg_ParseTuple(args, "l", &v)) {
+               return NULL;
+       }
+       self->tm->startLongTimer(v);
+       Py_RETURN_NONE;
 }
 
-void eMainloop::quit( int ret )   // call this to leave all loops
+static PyObject *
+eTimerPy_change_interval(eTimerPy* self, PyObject *args)
 {
-       retval=ret;
-       app_quit_now = true;
+       long v=0;
+       if (!PyArg_ParseTuple(args, "l", &v)) {
+               return NULL;
+       }
+       self->tm->changeInterval(v);
+       Py_RETURN_NONE;
 }
 
-eApplication* eApp = 0;
+static PyObject *
+eTimerPy_stop(eTimerPy* self)
+{
+       self->tm->stop();
+       Py_RETURN_NONE;
+}
+
+static PyObject *
+eTimerPy_get_callback_list(eTimerPy *self)
+{ //used for compatibilty with the old eTimer
+       return self->tm->timeout.get();
+}
+
+static PyMethodDef eTimerPy_methods[] = {
+       {"isActive", (PyCFunction)eTimerPy_is_active, METH_NOARGS,
+        "returns the timer state"
+       },
+       {"start", (PyCFunction)eTimerPy_start, METH_VARARGS,
+        "start timer with interval in msecs"
+       },
+       {"startLongTimer", (PyCFunction)eTimerPy_start_long, METH_VARARGS,
+        "start timer with interval in secs"
+       },
+       {"changeInterval", (PyCFunction)eTimerPy_change_interval, METH_VARARGS,
+        "change interval of a timer (in msecs)"
+       },
+       {"stop", (PyCFunction)eTimerPy_stop, METH_NOARGS,
+        "stops the timer"
+       },
+       //used for compatibilty with the old eTimer
+       {"get", (PyCFunction)eTimerPy_get_callback_list, METH_NOARGS,
+        "get timeout callback list"
+       },
+       {NULL}  /* Sentinel */
+};
+
+static PyObject *
+eTimerPy_get_cb_list(eTimerPy *self, void *closure)
+{
+       return self->tm->timeout.get();
+}
+
+static PyObject *
+eTimerPy_timeout(eTimerPy *self, void *closure) 
+{ //used for compatibilty with the old eTimer
+       Org_Py_INCREF((PyObject*)self);
+       return (PyObject*)self;
+}
+
+static PyGetSetDef eTimerPy_getseters[] = {
+       {"callback",
+        (getter)eTimerPy_get_cb_list, (setter)0,
+        "returns the callback python list",
+        NULL},
+
+       {"timeout", //used for compatibilty with the old eTimer
+        (getter)eTimerPy_timeout, (setter)0,
+        "synonym for our self",
+        NULL},
+
+       {NULL} /* Sentinel */
+};
+
+static PyTypeObject eTimerPyType = {
+       PyObject_HEAD_INIT(NULL)
+       0, /*ob_size*/
+       "eBaseImpl.eTimer", /*tp_name*/
+       sizeof(eTimerPy), /*tp_basicsize*/
+       0, /*tp_itemsize*/
+       (destructor)eTimerPy_dealloc, /*tp_dealloc*/
+       0, /*tp_print*/
+       0, /*tp_getattr*/
+       0, /*tp_setattr*/
+       0, /*tp_compare*/
+       0, /*tp_repr*/
+       0, /*tp_as_number*/
+       0, /*tp_as_sequence*/
+       0, /*tp_as_mapping*/
+       0, /*tp_hash */
+       0, /*tp_call*/
+       0, /*tp_str*/
+       0, /*tp_getattro*/
+       0, /*tp_setattro*/
+       0, /*tp_as_buffer*/
+       Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+       "eTimer objects", /* tp_doc */
+       (traverseproc)eTimerPy_traverse, /* tp_traverse */
+       (inquiry)eTimerPy_clear, /* tp_clear */
+       0, /* tp_richcompare */
+       offsetof(eTimerPy, in_weakreflist), /* tp_weaklistoffset */
+       0, /* tp_iter */
+       0, /* tp_iternext */
+       eTimerPy_methods, /* tp_methods */
+       0, /* tp_members */
+       eTimerPy_getseters, /* tp_getset */
+       0, /* tp_base */
+       0, /* tp_dict */
+       0, /* tp_descr_get */
+       0, /* tp_descr_set */
+       0, /* tp_dictoffset */
+       0, /* tp_init */
+       0, /* tp_alloc */
+       eTimerPy_new, /* tp_new */
+};
+
+// eSocketNotifier replacement
+
+struct eSocketNotifierPy
+{
+       PyObject_HEAD
+       eSocketNotifier *sn;
+       PyObject *in_weakreflist; /* List of weak references */
+};
+
+static int
+eSocketNotifierPy_traverse(eSocketNotifierPy *self, visitproc visit, void *arg)
+{
+       PyObject *obj = self->sn->activated.get();
+       Py_VISIT(obj);
+       return 0;
+}
+
+static int
+eSocketNotifierPy_clear(eSocketNotifierPy *self)
+{
+       PyObject *obj = self->sn->activated.get();
+       Py_CLEAR(obj);
+       return 0;
+}
+
+static void
+eSocketNotifierPy_dealloc(eSocketNotifierPy* self)
+{
+       if (self->in_weakreflist != NULL)
+               PyObject_ClearWeakRefs((PyObject *) self);
+       eSocketNotifierPy_clear(self);
+       delete self->sn;
+       self->ob_type->tp_free((PyObject*)self);
+}
+
+static PyObject *
+eSocketNotifierPy_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+       eSocketNotifierPy *self = (eSocketNotifierPy *)type->tp_alloc(type, 0);
+       int fd, req, immediate_start = 1, size = PyTuple_Size(args);
+       if (size > 2)
+       {
+               if (!PyArg_ParseTuple(args, "iii", &fd, &req, &immediate_start))
+               {
+                       PyObject *obj = NULL;
+                       if (!PyArg_ParseTuple(args, "iiO", &fd, &req, &immediate_start))
+                               return NULL;
+                       if (obj == Py_False)
+                               immediate_start = 0;
+                       else if (obj != Py_True)
+                               return NULL;
+               }
+       }
+       else if (size < 2 || !PyArg_ParseTuple(args, "ii", &fd, &req))
+               return NULL;
+       self->sn = new eSocketNotifier(eApp, fd, req, immediate_start);
+       self->in_weakreflist = NULL;
+       return (PyObject *)self;
+}
+
+static PyObject *
+eSocketNotifierPy_is_running(eSocketNotifierPy* self)
+{
+       PyObject *ret = self->sn->isRunning() ? Py_True : Py_False;
+       Org_Py_INCREF(ret);
+       return ret;
+}
+
+static PyObject *
+eSocketNotifierPy_start(eSocketNotifierPy* self)
+{
+       self->sn->start();
+       Py_RETURN_NONE;
+}
+
+static PyObject *
+eSocketNotifierPy_stop(eSocketNotifierPy* self)
+{
+       self->sn->stop();
+       Py_RETURN_NONE;
+}
+
+static PyObject *
+eSocketNotifierPy_get_fd(eSocketNotifierPy* self)
+{
+       return PyInt_FromLong(self->sn->getFD());
+}
+
+static PyObject *
+eSocketNotifierPy_get_requested(eSocketNotifierPy* self)
+{
+       return PyInt_FromLong(self->sn->getRequested());
+}
+
+static PyObject *
+eSocketNotifierPy_set_requested(eSocketNotifierPy* self, PyObject *args)
+{
+       int req;
+       if (PyTuple_Size(args) != 1 || !PyArg_ParseTuple(args, "i", &req))
+               return NULL;
+       self->sn->setRequested(req);
+       Py_RETURN_NONE;
+}
+
+static PyMethodDef eSocketNotifierPy_methods[] = {
+       {"isRunning", (PyCFunction)eSocketNotifierPy_is_running, METH_NOARGS,
+        "returns the running state"
+       },
+       {"start", (PyCFunction)eSocketNotifierPy_start, METH_NOARGS,
+        "start the sn"
+       },
+       {"stop", (PyCFunction)eSocketNotifierPy_stop, METH_NOARGS,
+        "stops the sn"
+       },
+       {"getFD", (PyCFunction)eSocketNotifierPy_get_fd, METH_NOARGS,
+        "get file descriptor"
+       },
+       {"getRequested", (PyCFunction)eSocketNotifierPy_get_requested, METH_NOARGS,
+        "get requested"
+       },
+       {"setRequested", (PyCFunction)eSocketNotifierPy_set_requested, METH_VARARGS,
+        "set requested"
+       },
+       {NULL}  /* Sentinel */
+};
+
+static PyObject *
+eSocketNotifierPy_get_cb_list(eSocketNotifierPy *self, void *closure)
+{
+       return self->sn->activated.get();
+}
+
+static PyGetSetDef eSocketNotifierPy_getseters[] = {
+       {"callback",
+        (getter)eSocketNotifierPy_get_cb_list, (setter)0,
+        "returns the callback python list",
+        NULL},
+       {NULL} /* Sentinel */
+};
+
+static PyTypeObject eSocketNotifierPyType = {
+       PyObject_HEAD_INIT(NULL)
+       0, /*ob_size*/
+       "eBaseImpl.eSocketNotifier", /*tp_name*/
+       sizeof(eSocketNotifierPy), /*tp_basicsize*/
+       0, /*tp_itemsize*/
+       (destructor)eSocketNotifierPy_dealloc, /*tp_dealloc*/
+       0, /*tp_print*/
+       0, /*tp_getattr*/
+       0, /*tp_setattr*/
+       0, /*tp_compare*/
+       0, /*tp_repr*/
+       0, /*tp_as_number*/
+       0, /*tp_as_sequence*/
+       0, /*tp_as_mapping*/
+       0, /*tp_hash */
+       0, /*tp_call*/
+       0, /*tp_str*/
+       0, /*tp_getattro*/
+       0, /*tp_setattro*/
+       0, /*tp_as_buffer*/
+       Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+       "eTimer objects", /* tp_doc */
+       (traverseproc)eSocketNotifierPy_traverse, /* tp_traverse */
+       (inquiry)eSocketNotifierPy_clear, /* tp_clear */
+       0, /* tp_richcompare */
+       offsetof(eSocketNotifierPy, in_weakreflist), /* tp_weaklistoffset */
+       0, /* tp_iter */
+       0, /* tp_iternext */
+       eSocketNotifierPy_methods, /* tp_methods */
+       0, /* tp_members */
+       eSocketNotifierPy_getseters, /* tp_getset */
+       0, /* tp_base */
+       0, /* tp_dict */
+       0, /* tp_descr_get */
+       0, /* tp_descr_set */
+       0, /* tp_dictoffset */
+       0, /* tp_init */
+       0, /* tp_alloc */
+       eSocketNotifierPy_new, /* tp_new */
+};
+
+static PyMethodDef module_methods[] = {
+       {NULL}  /* Sentinel */
+};
+
+void eBaseInit(void)
+{
+       PyObject* m;
+
+       m = Py_InitModule3("eBaseImpl", module_methods,
+               "Module that implements some enigma classes with working cyclic garbage collection.");
+
+       if (m == NULL)
+               return;
+
+       if (!PyType_Ready(&eTimerPyType))
+       {
+               Org_Py_INCREF((PyObject*)&eTimerPyType);
+               PyModule_AddObject(m, "eTimer", (PyObject*)&eTimerPyType);
+       }
+       if (!PyType_Ready(&eSocketNotifierPyType))
+       {
+               Org_Py_INCREF((PyObject*)&eSocketNotifierPyType);
+               PyModule_AddObject(m, "eSocketNotifier", (PyObject*)&eSocketNotifierPyType);
+       }
+}
+}