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ringbuffer: add static initializer

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This commit is contained in:
René Kijewski 2014-05-06 20:45:29 +02:00
parent 201152a6d3
commit 02aeca02db
1 changed files with 9 additions and 0 deletions
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9
sys/include/ringbuffer.h
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@ -30,6 +30,15 @@ typedef struct ringbuffer {
unsigned int avail; /**< Number of elements available for reading. */ unsigned int avail; /**< Number of elements available for reading. */
} ringbuffer_t; } ringbuffer_t;
/**
* @def RINGBUFFER_INIT(BUF)
* @brief Initialize a ringbuffer.
* @details This macro is meant for static ringbuffers.
* @param[in] BUF Buffer to use for the ringbuffer. The size is deduced through `sizeof (BUF)`.
* @returns The static initializer.
*/
#define RINGBUFFER_INIT(BUF) { (BUF), sizeof (BUF), 0, 0 }
/** /**
* @brief Initialize a ringbuffer. * @brief Initialize a ringbuffer.
* @param[out] rb Datum to initialize. * @param[out] rb Datum to initialize.