online_distribution/eventlibraries/oncsEventiterator.h

0001 // -*- c++ -*-
0002 #ifndef __ONCSEVENTITERATOR_H__
0003 #define __ONCSEVENTITERATOR_H__
0004
0005 #include "Eventiterator.h"
0006 #include "oncsBuffer.h"
0007
0008 #ifndef __CINT__
0009 class WINDOWSEXPORT oncsEventiterator : public Eventiterator {
0010 #else
0011 class  oncsEventiterator : public Eventiterator {
0012 #endif
0013 public:
0014
0015   virtual ~oncsEventiterator();
0016   oncsEventiterator(const char *filename);
0017   oncsEventiterator(const char *filename, int &status);
0018
0019   const char * getIdTag() const;
0020   virtual void identify(std::ostream& os = std::cout) const;
0021
0022
0023   Event *getNextEvent();
0024
0025 private:
0026   int read_next_buffer();
0027
0028   char * thefilename;
0029   int fd;
0030   unsigned int initialbuffer[BUFFERSIZE];
0031   int *bp;
0032   int allocatedsize;
0033
0034   int current_index;
0035   int last_read_status;
0036   int buffer_size;
0037   oncsBuffer *bptr;
0038
0039 };
0040
0041 #endif /* __ONCSEVENTITERATOR_H__ */
0042