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 Reader Reader;
   8 typedef struct Writer Writer;
   9
  10 struct Reader {
  11   void (*setpos)(Reader *r, int pos);
  12   void (*read)(Reader *r, void *data, size_t size, size_t n);
  13 };
  14
  15 struct Writer {
  16   void (*setpos)(Writer *w, int pos);
  17   void (*write)(Writer *w, const void *data, size_t size, size_t n);
  18 };
  19
  20 void stream_read (void *data, size_t size, size_t n, Reader *f);
  21 int8_t stream_read8 (Reader *f);
  22 int16_t stream_read16 (Reader *f);
  23 int32_t stream_read32 (Reader *f);
  24
  25 void stream_write (const void *data, size_t size, size_t n, Writer *w);
  26 void stream_write8 (int8_t x, Writer *w);
  27 void stream_write16 (int16_t x, Writer *w);
  28 void stream_write32 (int32_t x, Writer *w);
  29
  30 #endif /* COMMON_STREAMS_H_INCLUDED */