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Reventloop.h

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#ifndef R_EVENTLOOP_H_PKG
#define R_EVENTLOOP_H_PKG

#include "Rinternals.h"

typedef struct _R_EventLoop R_EventLoop;

typedef int (*R_IdleFunc)(void *);
typedef R_IdleFunc R_TimerFunc;

struct _R_EventLoop {
   char *name;

   void (*init)(int *argc, char ***argv);

   void (*exit)();

   void (*main)(void);

   int  (*nonBlockingIteration)();

   void (*quit)();


   SEXP (*addInput)(int fd, void (*handler)(void *, int, int), void *userData);

   SEXP (*addIdle)(R_IdleFunc, void *userData);

   SEXP (*addTimer)(int interval, R_TimerFunc, void *userData);

   int (*removeInput)(SEXP);
   int (*removeIdle)(SEXP);
   int (*removeTimer)(SEXP);

   void *data;

   R_EventLoop *next;

   R_EventLoop *prev;
};


extern R_EventLoop *R_eloop;

void R_mainLoop();

SEXP R_localAddIdle(R_IdleFunc f, void *userData);


typedef enum {RGTK_CALLBACK, RGTK_TIMER, RGTK_IDLE} RCallbackDataType;

typedef struct {
    SEXP function;
    SEXP data;
    Rboolean     useData;

    RCallbackDataType type;
} R_CallbackData;


#endif

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