FIFO helpers, aka circular buffers

these macros define accessories for FIFOs of any name, type and any (power of two) size More...

Macros
#define	FIFO_CURSOR_TYPE   uint16_t
#define	FIFO_BOOL_TYPE   int
#define	FIFO_INLINE   inline
#define	FIFO_VOLATILE
#define	FIFO_SYNC   __sync_synchronize()
#define	FIFO_ZERO_INIT   {0}
#define	FIFO_NULL   { FIFO_ZERO_INIT, 0, 0, 0 }
#define	FIFO_DECL   static
#define	DECLARE_FIFO(__type, __name, __size)
#define	DEFINE_FIFO(__type, __name)

Detailed Description

these macros define accessories for FIFOs of any name, type and any (power of two) size

Macro Definition Documentation

#define DECLARE_FIFO	(		__type,
			__name,
			__size
	)

Value:

enum { __name##_overflow_f = (1 << 0) };    \
  enum { __name##_fifo_size = (__size) };   \
  typedef struct __name##_t {           \
    __type  buffer[__name##_fifo_size];     \
    FIFO_VOLATILE FIFO_CURSOR_TYPE read;    \
    FIFO_VOLATILE FIFO_CURSOR_TYPE write;   \
    FIFO_VOLATILE uint8_t flags;        \
  } __name##_t

#define DEFINE_FIFO	(		__type,
			__name
	)

#define FIFO_BOOL_TYPE   int

#define FIFO_CURSOR_TYPE   uint16_t

#define FIFO_DECL   static

#define FIFO_INLINE   inline

#define FIFO_NULL   { FIFO_ZERO_INIT, 0, 0, 0 }

#define FIFO_SYNC   __sync_synchronize()

#define FIFO_VOLATILE

#define FIFO_ZERO_INIT   {0}