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mp_ring: improve documentation

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This improves some lacking areas of the documentation based on some remarks
and questions I got on IRC from @jon-y.
This commit is contained in:
Stefano Pigozzi 2013-07-13 10:28:59 +02:00
parent 9d9bcfa4f3
commit 58c92bce69
1 changed files with 9 additions and 4 deletions
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13
core/mp_ring.h
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@ -49,7 +49,7 @@ int mp_ring_read(struct mp_ring *buffer, unsigned char *dest, int len);
/**
* Read data from the ringbuffer
*
* This function behaves similarly to `av_fifo_generic_read` and was actually
* This function behaves similarly to `av_fifo_generic_read` and was actually
* added for compatibility with code that was written for it.
* This function will drain the returned amount of bytes from the ringbuffer
* so you don't have to handle that in inside `func`.
@ -57,11 +57,16 @@ int mp_ring_read(struct mp_ring *buffer, unsigned char *dest, int len);
* buffer: target ringbuffer instance
* ctx: context for the callback function
* len: maximum number of bytes to read
* func: callback function to customize reading behaviour
* func: callback function to customize reading behaviour. It will be called
* by `mp_ring_read_cb` with the following parameters:
* ctx: context data provided to `mp_ring_read_cb`
* src: source buffer to read from
* len: the *exact* amount of bytes to read. These will be drained
* by the ring after this callback is called.
* return: number of bytes read
*/
int mp_ring_read_cb(struct mp_ring *buffer, void *ctx, int len,
void (*func)(void*, void*, int));
void (*func)(void *ctx, void *src, int len));
/**
* Write data to the ringbuffer
@ -101,7 +106,7 @@ int mp_ring_available(struct mp_ring *buffer);
* Get the total size
*
* buffer: target ringbuffer instance
* return: total ringbuffer size
* return: total ringbuffer size in bytes
*/
int mp_ring_size(struct mp_ring *buffer);