src/common/streams.h

   1 #ifndef COMMON_STREAMS_H_INCLUDED
   2 #define COMMON_STREAMS_H_INCLUDED
   3
   4 #include <stddef.h>
   5 #include <stdint.h>
   6
   7 typedef struct Stream Stream;
   8
   9 struct Stream {
  10   long (*getpos)(Stream *rw);
  11   void (*setpos)(Stream *rw, long pos);
  12   long (*getlen)(Stream *rw);
  13   void (*read)(Stream *r, void *data, size_t size, size_t n);
  14   void (*write)(Stream *w, const void *data, size_t size, size_t n);
  15 };
  16
  17 long stream_getpos (Stream *s);
  18 void stream_setpos (Stream *s, long pos);
  19
  20 long stream_getlen (Stream *s);
  21
  22 void stream_read (void *data, size_t size, size_t n, Stream *r);
  23 int8_t stream_read8 (Stream *r);
  24 int16_t stream_read16 (Stream *r);
  25 int32_t stream_read32 (Stream *r);
  26
  27 void stream_write (const void *data, size_t size, size_t n, Stream *w);
  28 void stream_write8 (int8_t x, Stream *w);
  29 void stream_write16 (int16_t x, Stream *w);
  30 void stream_write32 (int32_t x, Stream *w);
  31
  32 #endif /* COMMON_STREAMS_H_INCLUDED */