backend.h

#ifndef EID_VWR_BACKEND_H
#define EID_VWR_BACKEND_H
 
#include <eid-viewer/macros.h>
 
#ifdef __cplusplus
extern "C"
{
#endif
 
#include <eid-viewer/oslayer.h>
 
    void be_setcallbacks(struct eid_vwr_ui_callbacks *cb_);
    DllExport int eid_vwr_set_cbfuncs(void (*newsrc) (enum eid_vwr_source source),  // data source has changed.
        void (*newstringdata) (const EID_CHAR * label, const EID_CHAR * data),  // new string data to be displayed in UI.
        void (*newbindata) (const EID_CHAR * label, const unsigned char *data, int datalen),    // new binary data to be displayed in UI.
        void (*log) (enum eid_vwr_loglevel loglevel, const EID_CHAR * line),    // log a string at the given level.
        //void(*logv)(enum eid_vwr_loglevel loglevel, const char* line, va_list ap), // log a string using varargs. Note: a UI needs to implement only one of log() or logv(); the backend will use whichever is implemented.
        void (*newstate) (enum eid_vwr_states states),  // issued at state machine transition
        void (*pinop_result) (enum eid_vwr_pinops pinops, enum eid_vwr_result result),  // issued when a PIN operation finished.
        void (*readers_changed) (unsigned long nreaders, slotdesc *slots),
        void (*challenge_result) (const unsigned char *result, int resultlen, enum eid_vwr_result)); // issued when a card challenge operation (applet 1.8) finished.
 
    void be_log(enum eid_vwr_loglevel, const EID_CHAR * line, ...);
 
    int be_newsource(enum eid_vwr_source which);
    int be_newstate(enum eid_vwr_states s);
    int be_newstringdata(const EID_CHAR * label, const EID_CHAR * data);
    int be_newbindata(const EID_CHAR * label, const unsigned char *data, int datalen);
    int be_pinresult(enum eid_vwr_pinops, enum eid_vwr_result);
    int be_readers_changed(unsigned long nreaders, slotdesc * slots);
    int be_challengeresult(const unsigned char *result, int resultlen, enum eid_vwr_result);
 
#ifdef __cplusplus
}
#endif
 
#ifdef __GNUC__
#define EIDV_UNUSED __attribute__((unused))
#else
#define EIDV_UNUSED
#endif
 
#endif