import of enigma2

1 files changed, 252 insertions, 0 deletions

diff --git a/lib/base/ebase.h b/lib/base/ebase.h
new file mode 100644
index 00000000..b929cb6d
--- /dev/null
+++ b/lib/base/ebase.h
@@ -0,0 +1,252 @@
+#ifndef __ebase_h
+#define __ebase_h
+
+#include <vector>
+#include <map>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <asm/types.h>
+#include <time.h>
+
+#include <lib/base/eptrlist.h>
+#include <libsig_comp.h>
+
+class eApplication;
+
+extern eApplication* eApp;
+
+static inline bool operator<( const timeval &t1, const timeval &t2 )
+{
+	return t1.tv_sec < t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_usec < t2.tv_usec);
+}
+
+static inline timeval &operator+=( timeval &t1, const timeval &t2 )
+{
+	t1.tv_sec += t2.tv_sec;
+	if ( (t1.tv_usec += t2.tv_usec) >= 1000000 )
+	{
+		t1.tv_sec++;
+		t1.tv_usec -= 1000000;
+	}
+	return t1;
+}
+
+static inline timeval operator+( const timeval &t1, const timeval &t2 )
+{
+	timeval tmp;
+	tmp.tv_sec = t1.tv_sec + t2.tv_sec;
+	if ( (tmp.tv_usec = t1.tv_usec + t2.tv_usec) >= 1000000 )
+	{
+		tmp.tv_sec++;
+		tmp.tv_usec -= 1000000;
+	}
+	return tmp;
+}
+
+static inline timeval operator-( const timeval &t1, const timeval &t2 )
+{
+	timeval tmp;
+	tmp.tv_sec = t1.tv_sec - t2.tv_sec;
+	if ( (tmp.tv_usec = t1.tv_usec - t2.tv_usec) < 0 )
+	{
+		tmp.tv_sec--;
+		tmp.tv_usec += 1000000;
+	}
+	return tmp;
+}
+
+static inline timeval operator-=( timeval &t1, const timeval &t2 )
+{
+	t1.tv_sec -= t2.tv_sec;
+	if ( (t1.tv_usec -= t2.tv_usec) < 0 )
+	{
+		t1.tv_sec--;
+		t1.tv_usec += 1000000;
+	}
+	return t1;
+}
+
+static inline timeval &operator+=( timeval &t1, const long msek )
+{
+	t1.tv_sec += msek / 1000;
+	if ( (t1.tv_usec += (msek % 1000) * 1000) >= 1000000 )
+	{
+		t1.tv_sec++;
+		t1.tv_usec -= 1000000;
+	}
+	return t1;
+}
+
+static inline timeval operator+( const timeval &t1, const long msek )
+{
+	timeval tmp;
+	tmp.tv_sec = t1.tv_sec + msek / 1000;
+	if ( (tmp.tv_usec = t1.tv_usec + (msek % 1000) * 1000) >= 1000000 )
+	{
+		tmp.tv_sec++;
+		tmp.tv_usec -= 1000000;
+	}
+	return tmp;
+}
+
+static inline timeval operator-( const timeval &t1, const long msek )
+{
+	timeval tmp;
+	tmp.tv_sec = t1.tv_sec - msek / 1000;
+	if ( (tmp.tv_usec = t1.tv_usec - (msek % 1000)*1000) < 0 )
+	{
+		tmp.tv_sec--;
+		tmp.tv_usec += 1000000;
+	}
+	return tmp;
+}
+
+static inline timeval operator-=( timeval &t1, const long msek )
+{
+	t1.tv_sec -= msek / 1000;
+	if ( (t1.tv_usec -= (msek % 1000) * 1000) < 0 )
+	{
+		t1.tv_sec--;
+		t1.tv_usec += 1000000;
+	}
+	return t1;
+}
+
+static inline timeval timeout_timeval ( const timeval & orig )
+{
+	timeval now;
+  gettimeofday(&now,0);
+
+	return orig-now;
+}
+
+static inline long timeout_usec ( const timeval & orig )
+{
+	timeval now;
+  gettimeofday(&now,0);
+
+	return (orig-now).tv_sec*1000000 + (orig-now).tv_usec;
+}
+
+class eMainloop;
+
+					// die beiden signalquellen: SocketNotifier...
+
+/**
+ * \brief Gives a callback when data on a file descriptor is ready.
+ *
+ * This class emits the signal \c eSocketNotifier::activate whenever the
+ * event specified by \c req is available.
+ */
+class eSocketNotifier
+{
+public:
+	enum { Read=POLLIN, Write=POLLOUT, Priority=POLLPRI, Error=POLLERR, Hungup=POLLHUP };
+private:
+	eMainloop &context;
+	int fd;
+	int state;
+	int requested;		// requested events (POLLIN, ...)
+public:
+	/**
+	 * \brief Constructs a eSocketNotifier.
+	 * \param context The thread where to bind the socketnotifier to. The signal is emitted from that thread.
+	 * \param fd The filedescriptor to monitor. Can be a device or a socket.
+	 * \param req The events to watch to, normally either \c Read or \c Write. You can specify any events that \c poll supports.
+	 * \param startnow Specifies if the socketnotifier should start immediately.
+	 */
+	eSocketNotifier(eMainloop *context, int fd, int req, bool startnow=true);
+	~eSocketNotifier();
+
+	Signal1<void, int> activated;
+	void activate(int what) { /*emit*/ activated(what); }
+
+	void start();
+	void stop();
+	bool isRunning() { return state; }
+
+	int getFD() { return fd; }
+	int getRequested() { return requested; }
+	void setRequested(int req) { requested=req; }
+};
+
+				// ... und Timer
+/**
+ * \brief Gives a callback after a specified timeout.
+ *
+ * This class emits the signal \c eTimer::timeout after the specified timeout.
+ */
+class eTimer
+{
+	eMainloop &context;
+	timeval nextActivation;
+	long interval;
+	bool bSingleShot;
+	bool bActive;
+public:
+	/**
+	 * \brief Constructs a timer.
+	 *
+	 * The timer is not yet active, it has to be started with \c start.
+	 * \param context The thread from which the signal should be emitted.
+	 */
+	eTimer(eMainloop *context): context(*context), bActive(false) { }
+	~eTimer()	{ if (bActive) stop(); }
+
+	Signal0<void> timeout;
+	void activate();
+
+	bool isActive()	{ return bActive; }
+	timeval &getNextActivation() { return nextActivation; }
+
+	void start(long msec, bool singleShot=false);
+	void stop();
+	void changeInterval(long msek);
+	bool operator<(const eTimer& t) const	{		return nextActivation < t.nextActivation;		}
+};
+
+			// werden in einer mainloop verarbeitet
+class eMainloop
+{
+	std::map<int, eSocketNotifier*> notifiers;
+	ePtrList<eTimer> TimerList;
+	bool app_exit_loop;
+	bool app_quit_now;
+	int loop_level;
+	void processOneEvent();
+	int retval;
+public:
+	eMainloop():app_quit_now(0),loop_level(0),retval(0){	}
+ 	void addSocketNotifier(eSocketNotifier *sn);
+	void removeSocketNotifier(eSocketNotifier *sn);
+	void addTimer(eTimer* e)	{		TimerList.push_back(e);		TimerList.sort();	}
+	void removeTimer(eTimer* e)	{		TimerList.remove(e);	}
+
+	int looplevel() { return loop_level; }
+	
+	int exec();  // recursive enter the loop
+	void quit(int ret=0); // leave all pending loops (recursive leave())
+	void enter_loop();
+	void exit_loop();
+};
+
+/**
+ * \brief The application class.
+ *
+ * An application provides a mainloop, and runs in the primary thread.
+ * You can have other threads, too, but this is the primary one.
+ */
+class eApplication: public eMainloop
+{
+public:
+	eApplication()
+	{
+		if (!eApp)
+			eApp = this;
+	}
+	~eApplication()
+	{
+		eApp = 0;
+	}
+};
+#endif