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virtual P6R::P6ERR P6R::p6ICircbuf::available ( P6SIZE *  pcAvailable)
pure virtual

Returns the number of available bytes in the buffer.

Parameters
pcAvailable[ out ] A pointer to a P6R::P6UINT32 in which will be placed the number of available bytes which can be written to the buffer.
Returns
SuccessP6R::eOk 
FailureP6R::eInvalidArgpcAvailable was NULL.