mainloop cleanup/speedup

[vuplus_dvbapp] / lib / base / ebase.cpp

diff --git a/lib/base/ebase.cpp b/lib/base/ebase.cpp
index 480c8ea..6efbf90 100644 (file)
--- a/lib/base/ebase.cpp
+++ b/lib/base/ebase.cpp
@@ -24,7 +24,7 @@ void eSocketNotifier::start()
                stop();
 
        context.addSocketNotifier(this);
-       state=1;
+       state=2;  // running but not in poll yet
 }
 
 void eSocketNotifier::stop()
@@ -123,11 +123,10 @@ void eMainloop::addSocketNotifier(eSocketNotifier *sn)
 
 void eMainloop::removeSocketNotifier(eSocketNotifier *sn)
 {
-       for (std::map<int,eSocketNotifier*>::iterator i = notifiers.find(sn->getFD());
-                       i != notifiers.end();
-                       ++i)
-               if (i->second == sn)
-                       return notifiers.erase(i);
+       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");
 }
 
@@ -154,9 +153,8 @@ int eMainloop::processOneEvent(unsigned int user_timeout, PyObject **res, ePyObj
                        /* if current timer already passed, don't delay infinite. */
                if (poll_timeout < 0)
                        poll_timeout = 0;
-                       
-                       /* convert us to ms */
-               poll_timeout /= 1000;
+               else /* convert us to ms */
+                       poll_timeout /= 1000;
        }
        
        if ((user_timeout > 0) && (poll_timeout > 0) && ((unsigned int)poll_timeout > user_timeout))
@@ -164,7 +162,7 @@ int eMainloop::processOneEvent(unsigned int user_timeout, PyObject **res, ePyObj
                poll_timeout = user_timeout;
                return_reason = 1;
        }
-       
+
        int nativecount=notifiers.size(),
                fdcount=nativecount,
                ret=0;
@@ -178,6 +176,7 @@ int eMainloop::processOneEvent(unsigned int user_timeout, PyObject **res, ePyObj
        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();
        }
@@ -191,27 +190,32 @@ int eMainloop::processOneEvent(unsigned int user_timeout, PyObject **res, ePyObj
                        pfd[i++].events = PyInt_AsLong(val);
                }
        }
-       
-       ret = ::poll(pfd, fdcount, poll_timeout);
+
+       if (this == eApp)
+               Py_BEGIN_ALLOW_THREADS
+               ret = ::poll(pfd, fdcount, poll_timeout);
+               Py_END_ALLOW_THREADS
+       else
+               ret = ::poll(pfd, fdcount, poll_timeout);
+
                        /* ret > 0 means that there are some active poll entries. */
        if (ret > 0)
        {
                int i=0;
                return_reason = 0;
-               for (; i < nativecount ; ++i)
+               for (; i < nativecount; ++i)
                {
                        if (pfd[i].revents)
                        {
-                               int handled = 0;
                                it = notifiers.find(pfd[i].fd);
-                               if (it != notifiers.end())
+                               if (it != notifiers.end()
+                                       && it->second->state == 1) // added and in poll
                                {
                                        int req = it->second->getRequested();
-                                       handled |= req;
                                        if (pfd[i].revents & req)
-                                               it->second->activate(pfd[i].revents);
+                                               it->second->activate(pfd[i].revents & req);
+                                       pfd[i].revents &= ~req;
                                }
-                               pfd[i].revents &= ~handled;
                                if (pfd[i].revents & (POLLERR|POLLHUP|POLLNVAL))
                                        eDebug("poll: unhandled POLLERR/HUP/NVAL for fd %d(%d)", pfd[i].fd, pfd[i].revents);
                        }
@@ -229,18 +233,14 @@ int eMainloop::processOneEvent(unsigned int user_timeout, PyObject **res, ePyObj
                                Py_DECREF(it);
                        }
                }
-                       
-               ret = 1; /* poll did not timeout. */
-       } else if (ret < 0)
+       }
+       else if (ret < 0)
        {
                        /* when we got a signal, we get EINTR. */
                if (errno != EINTR)
                        eDebug("poll made error (%m)");
                else
-               {
-                       return_reason = 2;
-                       ret = -1; /* don't assume the timeout has passed when we got a signal */
-               }
+                       return_reason = 2; /* don't assume the timeout has passed when we got a signal */
        }
        
                /* when we not processed anything, check timers. */
@@ -251,7 +251,7 @@ int eMainloop::processOneEvent(unsigned int user_timeout, PyObject **res, ePyObj
 
                if (ret || m_now_is_invalid)
                        gettimeofday(&now, 0);
-               else
+               else // poll timeoutet
                        now += poll_timeout;
 
                        /* process all timers which are ready. first remove them out of the list. */
@@ -275,7 +275,7 @@ void eMainloop::removeTimer(eTimer* e)
 int eMainloop::iterate(unsigned int user_timeout, PyObject **res, ePyObject dict)
 {
        int ret = 0;
-       
+
        timeval user_timer;
        gettimeofday(&user_timer, 0);
        user_timer += user_timeout;
@@ -288,22 +288,22 @@ int eMainloop::iterate(unsigned int user_timeout, PyObject **res, ePyObject dict
                        m_interrupt_requested = 0;
                        return 0;
                }
-               if (app_quit_now) return -1;
-               timeval now, timeout;
-               gettimeofday(&now, 0);
-               timeout = user_timer - now;
-               
-               if (user_timeout && (user_timer <= now))
-                       return 0;
-               
+
+               if (app_quit_now)
+                       return -1;
+
                int to = 0;
                if (user_timeout)
+               {
+                       timeval now, timeout;
+                       gettimeofday(&now, 0);
+                       if (user_timer<=now) // timeout
+                               return 0;
+                       timeout = user_timer - now;
                        to = timeout.tv_sec * 1000 + timeout.tv_usec / 1000;
-               
+               }
                ret = processOneEvent(to, res, dict);
-               if (res && *res)
-                       return ret;
-       } while (ret == 0);
+       } while ( !ret && !(res && *res) );
        
        return ret;
 }
@@ -325,20 +325,15 @@ PyObject *eMainloop::poll(ePyObject timeout, ePyObject dict)
        PyObject *res=0;
        
        if (app_quit_now)
-       {
-               Py_INCREF(Py_None);
-               return Py_None;
-       }
+               Py_RETURN_NONE;
        
        int user_timeout = (timeout == Py_None) ? 0 : PyInt_AsLong(timeout);
 
        iterate(user_timeout, &res, dict);
-       ePyObject ret(res);
-       
-       if (!ret) /* return empty list on timeout */
-               return PyList_New(0);
-       
-       return ret;
+       if (res)
+               return res;
+
+       return PyList_New(0); /* return empty list on timeout */
 }
 
 void eMainloop::interruptPoll()