Reverses the effect of pa_stream_begin_write() dropping all data
* that has already been placed in the memory area returned by
* pa_stream_begin_write(). Only valid to call if
* pa_stream_begin_write() was called before and neither
* pa_stream_cancel_write() nor pa_stream_write() have been called
* yet. Accessing the memory previously returned by
* pa_stream_begin_write() after this call is invalid. Any further
* explicit freeing of the memory area is not necessary.
* Returns zero on success. \since 0.9.16
Reverses the effect of pa_stream_begin_write() dropping all data * that has already been placed in the memory area returned by * pa_stream_begin_write(). Only valid to call if * pa_stream_begin_write() was called before and neither * pa_stream_cancel_write() nor pa_stream_write() have been called * yet. Accessing the memory previously returned by * pa_stream_begin_write() after this call is invalid. Any further * explicit freeing of the memory area is not necessary. * Returns zero on success. \since 0.9.16