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More macros added. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@944 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
gdisirio 2009-05-03 11:57:44 +00:00
parent 2713bd19c5
commit 5a8670e50f
1 changed files with 21 additions and 1 deletions
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22
src/include/channels.h
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@ -258,13 +258,33 @@ typedef struct {
* transfer is non-blocking and can return zero if the channel has * transfer is non-blocking and can return zero if the channel has
* no data immediately available. * no data immediately available.
* *
* @param[in] ip pointer to a @p BaseChannel or derived class * @param[in] ip pointer to a @p BaseAsynchronousChannel or derived class
* @param[out] bp pointer to the buffer where the input data is copied * @param[out] bp pointer to the buffer where the input data is copied
* @param[in] n the maximum amount of data to be transferred * @param[in] n the maximum amount of data to be transferred
* @return The number of bytes transferred. * @return The number of bytes transferred.
*/ */
#define chIORead(ip, bp, n) ((ip)->vmt->m1.read(ip, bp, n)) #define chIORead(ip, bp, n) ((ip)->vmt->m1.read(ip, bp, n))
/**
* @brief Returns the write event source.
* @details The write event source is broadcasted when the channel is ready
* for write operations. This usually happens when the internal
* output queue becomes empty.
* @param[in] ip pointer to a @p BaseAsynchronousChannel or derived class
* @return A pointer to an @p EventSource object.
*/
#define chIOGetWriteEventSource(ip) (&((ip)->vmt->d1.oevent))
/**
* @brief Returns the read event source.
* @details The read event source is broadcasted when the channel is ready
* for read operations. This usually happens when the internal
* input queue becomes non-empty.
* @param[in] ip pointer to a @p BaseAsynchronousChannel or derived class
* @return A pointer to an @p EventSource object.
*/
#define chIOGetReadEventSource(ip) (&((ip)->vmt->d1.ievent))
#endif /* CH_USE_EVENTS */ #endif /* CH_USE_EVENTS */
#endif /* _CHANNELS_H_ */ #endif /* _CHANNELS_H_ */