12 #include <lib/base/eptrlist.h>
13 #include <libsig_comp.h>
16 #include <lib/python/connections.h>
20 extern eApplication* eApp;
23 /* TODO: remove these inlines. */
24 static inline bool operator<( const timeval &t1, const timeval &t2 )
26 return t1.tv_sec < t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_usec < t2.tv_usec);
29 static inline bool operator<=( const timeval &t1, const timeval &t2 )
31 return t1.tv_sec < t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_usec <= t2.tv_usec);
34 static inline timeval &operator+=( timeval &t1, const timeval &t2 )
36 t1.tv_sec += t2.tv_sec;
37 if ( (t1.tv_usec += t2.tv_usec) >= 1000000 )
40 t1.tv_usec -= 1000000;
45 static inline timeval operator+( const timeval &t1, const timeval &t2 )
48 tmp.tv_sec = t1.tv_sec + t2.tv_sec;
49 if ( (tmp.tv_usec = t1.tv_usec + t2.tv_usec) >= 1000000 )
52 tmp.tv_usec -= 1000000;
57 static inline timeval operator-( const timeval &t1, const timeval &t2 )
60 tmp.tv_sec = t1.tv_sec - t2.tv_sec;
61 if ( (tmp.tv_usec = t1.tv_usec - t2.tv_usec) < 0 )
64 tmp.tv_usec += 1000000;
69 static inline timeval operator-=( timeval &t1, const timeval &t2 )
71 t1.tv_sec -= t2.tv_sec;
72 if ( (t1.tv_usec -= t2.tv_usec) < 0 )
75 t1.tv_usec += 1000000;
80 static inline timeval &operator+=( timeval &t1, const long msek )
82 t1.tv_sec += msek / 1000;
83 if ( (t1.tv_usec += (msek % 1000) * 1000) >= 1000000 )
86 t1.tv_usec -= 1000000;
91 static inline timeval operator+( const timeval &t1, const long msek )
94 tmp.tv_sec = t1.tv_sec + msek / 1000;
95 if ( (tmp.tv_usec = t1.tv_usec + (msek % 1000) * 1000) >= 1000000 )
98 tmp.tv_usec -= 1000000;
103 static inline timeval operator-( const timeval &t1, const long msek )
106 tmp.tv_sec = t1.tv_sec - msek / 1000;
107 if ( (tmp.tv_usec = t1.tv_usec - (msek % 1000)*1000) < 0 )
110 tmp.tv_usec += 1000000;
115 static inline timeval operator-=( timeval &t1, const long msek )
117 t1.tv_sec -= msek / 1000;
118 if ( (t1.tv_usec -= (msek % 1000) * 1000) < 0 )
121 t1.tv_usec += 1000000;
126 static inline int timeval_to_usec(const timeval &t1)
128 return t1.tv_sec*1000000 + t1.tv_usec;
134 // die beiden signalquellen: SocketNotifier...
137 * \brief Gives a callback when data on a file descriptor is ready.
139 * This class emits the signal \c eSocketNotifier::activate whenever the
140 * event specified by \c req is available.
142 class eSocketNotifier
145 enum { Read=POLLIN, Write=POLLOUT, Priority=POLLPRI, Error=POLLERR, Hungup=POLLHUP };
150 int requested; // requested events (POLLIN, ...)
153 * \brief Constructs a eSocketNotifier.
154 * \param context The thread where to bind the socketnotifier to. The signal is emitted from that thread.
155 * \param fd The filedescriptor to monitor. Can be a device or a socket.
156 * \param req The events to watch to, normally either \c Read or \c Write. You can specify any events that \c poll supports.
157 * \param startnow Specifies if the socketnotifier should start immediately.
159 eSocketNotifier(eMainloop *context, int fd, int req, bool startnow=true);
162 PSignal1<void, int> activated;
163 void activate(int what) { /*emit*/ activated(what); }
167 bool isRunning() { return state; }
169 int getFD() { return fd; }
170 int getRequested() { return requested; }
171 void setRequested(int req) { requested=req; }
176 // werden in einer mainloop verarbeitet
180 friend class eSocketNotifier;
181 std::map<int, eSocketNotifier*> notifiers, new_notifiers;
182 ePtrList<eTimer> m_timer_list;
185 int processOneEvent(unsigned int user_timeout, PyObject **res=0, ePyObject additional=ePyObject());
187 pthread_mutex_t recalcLock;
189 int m_now_is_invalid;
190 int m_interrupt_requested;
191 void addSocketNotifier(eSocketNotifier *sn);
192 void removeSocketNotifier(eSocketNotifier *sn);
193 void addTimer(eTimer* e);
194 void removeTimer(eTimer* e);
196 static void addTimeOffset(int offset);
199 static ePtrList<eMainloop> existing_loops;
203 :app_quit_now(0),loop_level(0),retval(0), m_interrupt_requested(0)
205 m_now_is_invalid = 0;
206 existing_loops.push_back(this);
207 pthread_mutex_init(&recalcLock, 0);
211 existing_loops.remove(this);
212 pthread_mutex_destroy(&recalcLock);
214 int looplevel() { return loop_level; }
217 void quit(int ret=0); // leave all pending loops (recursive leave())
220 /* a user supplied timeout. enter_loop will return with:
221 0 - no timeout, no signal
225 int iterate(unsigned int timeout=0, PyObject **res=0, SWIG_PYOBJECT(ePyObject) additional=(PyObject*)0);
227 /* run will iterate endlessly until the app is quit, and return
231 /* our new shared polling interface. */
232 PyObject *poll(SWIG_PYOBJECT(ePyObject) dict, SWIG_PYOBJECT(ePyObject) timeout);
233 void interruptPoll();
238 * \brief The application class.
240 * An application provides a mainloop, and runs in the primary thread.
241 * You can have other threads, too, but this is the primary one.
243 class eApplication: public eMainloop
259 * \brief Gives a callback after a specified timeout.
261 * This class emits the signal \c eTimer::timeout after the specified timeout.
265 friend class eMainloop;
267 timeval nextActivation;
271 void addTimeOffset(int);
274 * \brief Constructs a timer.
276 * The timer is not yet active, it has to be started with \c start.
277 * \param context The thread from which the signal should be emitted.
279 eTimer(eMainloop *context=eApp): context(*context), bActive(false) { }
280 ~eTimer() { if (bActive) stop(); }
282 PSignal0<void> timeout;
285 bool isActive() { return bActive; }
286 timeval &getNextActivation() { return nextActivation; }
288 void start(long msec, bool b=false);
290 void changeInterval(long msek);
292 bool operator<(const eTimer& t) const { return nextActivation < t.nextActivation; }
294 void startLongTimer( int seconds );