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This commit is contained in:
Andre Heber
2016-03-05 09:23:42 +01:00
parent b5d649564d
commit ccc5014cb8
6 changed files with 298 additions and 222 deletions
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61
Pipe/ringbuffer.h
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@ -4,72 +4,73 @@
#include <stdint.h>
#ifdef _MSC_VER
#define inline __inline
#define inline __inline
#endif
typedef struct {
uint32_t * reader;
uint32_t * writer;
uint32_t * start;
uint32_t * end;
uint32_t * reader;
uint32_t * writer;
uint32_t * start;
uint32_t * end;
} ringbuffer_t;
/* Use Array as RingBuffer */
static inline void RingBuffer_InitFromArray(ringbuffer_t * const ring_buffer, uint32_t * const array, uint32_t size)
{
ring_buffer->start = ring_buffer->reader = ring_buffer->writer = &array[0];
ring_buffer->end = &array[0] + size - 1;
ring_buffer->start = ring_buffer->reader = ring_buffer->writer = &array[0];
ring_buffer->end = &array[0] + size - 1;
}
static inline uint32_t * RingBuffer_NextAddress(ringbuffer_t * const ring_buffer, uint32_t * const pointer)
{
if (pointer == ring_buffer->end)
return ring_buffer->start;
else
return pointer + 1;
if (pointer == ring_buffer->end)
return ring_buffer->start;
else
return pointer + 1;
}
static inline uint8_t RingBuffer_IsFull(ringbuffer_t * const ring_buffer)
{
if (RingBuffer_NextAddress(ring_buffer, ring_buffer->writer) == ring_buffer->reader)
return 1;
return 0;
if (RingBuffer_NextAddress(ring_buffer, ring_buffer->writer) == ring_buffer->reader)
return 1;
return 0;
}
static inline uint8_t RingBuffer_IsEmpty(ringbuffer_t * const ring_buffer)
{
if (ring_buffer->writer == ring_buffer->reader)
return 1;
return 0;
if (ring_buffer->writer == ring_buffer->reader)
return 1;
return 0;
}
static inline uint8_t RingBuffer_IsFilled(ringbuffer_t * const ring_buffer)
{
return !RingBuffer_IsEmpty(ring_buffer);
return !RingBuffer_IsEmpty(ring_buffer);
}
/* Write element into RingBuffer. */
static inline void RingBuffer_Write(ringbuffer_t * const ring_buffer, uint32_t element)
{
if (!RingBuffer_IsFull(ring_buffer))
{
*(ring_buffer->writer) = element;
ring_buffer->writer = RingBuffer_NextAddress(ring_buffer, ring_buffer->writer);
}
if (!RingBuffer_IsFull(ring_buffer))
{
*(ring_buffer->writer) = element;
ring_buffer->writer = RingBuffer_NextAddress(ring_buffer, ring_buffer->writer);
}
}
/* Read value from RingBuffer. */
static inline uint32_t RingBuffer_Read(ringbuffer_t * const ring_buffer)
{
uint32_t element = 0;
uint32_t element = 0;
if (!RingBuffer_IsEmpty(ring_buffer))
{
element = *(ring_buffer->reader);
ring_buffer->reader = RingBuffer_NextAddress(ring_buffer, ring_buffer->reader);
}
if (!RingBuffer_IsEmpty(ring_buffer))
{
element = *(ring_buffer->reader);
*(ring_buffer->reader) = 5;
ring_buffer->reader = RingBuffer_NextAddress(ring_buffer, ring_buffer->reader);
}
return element;
return element;
}
#endif