mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
722a6b7cf4
This commit updates the chip independent system chapters of the programming guide for esp32s3. Signed-off-by: Sudeep Mohanty <sudeep.mohanty@espressif.com>
511 lines
22 KiB
C
511 lines
22 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef FREERTOS_RINGBUF_H
|
|
#define FREERTOS_RINGBUF_H
|
|
|
|
#ifndef INC_FREERTOS_H
|
|
#error "include FreeRTOS.h" must appear in source files before "include ringbuf.h"
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <freertos/queue.h>
|
|
|
|
/**
|
|
* Type by which ring buffers are referenced. For example, a call to xRingbufferCreate()
|
|
* returns a RingbufHandle_t variable that can then be used as a parameter to
|
|
* xRingbufferSend(), xRingbufferReceive(), etc.
|
|
*/
|
|
typedef void * RingbufHandle_t;
|
|
|
|
typedef enum {
|
|
/**
|
|
* No-split buffers will only store an item in contiguous memory and will
|
|
* never split an item. Each item requires an 8 byte overhead for a header
|
|
* and will always internally occupy a 32-bit aligned size of space.
|
|
*/
|
|
RINGBUF_TYPE_NOSPLIT = 0,
|
|
/**
|
|
* Allow-split buffers will split an item into two parts if necessary in
|
|
* order to store it. Each item requires an 8 byte overhead for a header,
|
|
* splitting incurs an extra header. Each item will always internally occupy
|
|
* a 32-bit aligned size of space.
|
|
*/
|
|
RINGBUF_TYPE_ALLOWSPLIT,
|
|
/**
|
|
* Byte buffers store data as a sequence of bytes and do not maintain separate
|
|
* items, therefore byte buffers have no overhead. All data is stored as a
|
|
* sequence of byte and any number of bytes can be sent or retrieved each
|
|
* time.
|
|
*/
|
|
RINGBUF_TYPE_BYTEBUF,
|
|
RINGBUF_TYPE_MAX,
|
|
} RingbufferType_t;
|
|
|
|
/**
|
|
* @brief Struct that is equivalent in size to the ring buffer's data structure
|
|
*
|
|
* The contents of this struct are not meant to be used directly. This
|
|
* structure is meant to be used when creating a statically allocated ring
|
|
* buffer where this struct is of the exact size required to store a ring
|
|
* buffer's control data structure.
|
|
*
|
|
*/
|
|
#if ( configSUPPORT_STATIC_ALLOCATION == 1)
|
|
typedef struct xSTATIC_RINGBUFFER {
|
|
/** @cond */ //Doxygen command to hide this structure from API Reference
|
|
size_t xDummy1[2];
|
|
UBaseType_t uxDummy2;
|
|
BaseType_t xDummy3;
|
|
void *pvDummy4[11];
|
|
StaticSemaphore_t xDummy5[2];
|
|
portMUX_TYPE muxDummy;
|
|
/** @endcond */
|
|
} StaticRingbuffer_t;
|
|
#endif
|
|
|
|
/**
|
|
* @brief Create a ring buffer
|
|
*
|
|
* @param[in] xBufferSize Size of the buffer in bytes. Note that items require
|
|
* space for a header in no-split/allow-split buffers
|
|
* @param[in] xBufferType Type of ring buffer, see documentation.
|
|
*
|
|
* @note xBufferSize of no-split/allow-split buffers will be rounded up to the nearest 32-bit aligned size.
|
|
*
|
|
* @return A handle to the created ring buffer, or NULL in case of error.
|
|
*/
|
|
RingbufHandle_t xRingbufferCreate(size_t xBufferSize, RingbufferType_t xBufferType);
|
|
|
|
/**
|
|
* @brief Create a ring buffer of type RINGBUF_TYPE_NOSPLIT for a fixed item_size
|
|
*
|
|
* This API is similar to xRingbufferCreate(), but it will internally allocate
|
|
* additional space for the headers.
|
|
*
|
|
* @param[in] xItemSize Size of each item to be put into the ring buffer
|
|
* @param[in] xItemNum Maximum number of items the buffer needs to hold simultaneously
|
|
*
|
|
* @return A RingbufHandle_t handle to the created ring buffer, or NULL in case of error.
|
|
*/
|
|
RingbufHandle_t xRingbufferCreateNoSplit(size_t xItemSize, size_t xItemNum);
|
|
|
|
|
|
/**
|
|
* @brief Create a ring buffer but manually provide the required memory
|
|
*
|
|
* @param[in] xBufferSize Size of the buffer in bytes.
|
|
* @param[in] xBufferType Type of ring buffer, see documentation
|
|
* @param[in] pucRingbufferStorage Pointer to the ring buffer's storage area.
|
|
* Storage area must have the same size as specified by xBufferSize
|
|
* @param[in] pxStaticRingbuffer Pointed to a struct of type StaticRingbuffer_t
|
|
* which will be used to hold the ring buffer's data structure
|
|
*
|
|
* @note xBufferSize of no-split/allow-split buffers MUST be 32-bit aligned.
|
|
*
|
|
* @return A handle to the created ring buffer
|
|
*/
|
|
#if ( configSUPPORT_STATIC_ALLOCATION == 1)
|
|
RingbufHandle_t xRingbufferCreateStatic(size_t xBufferSize,
|
|
RingbufferType_t xBufferType,
|
|
uint8_t *pucRingbufferStorage,
|
|
StaticRingbuffer_t *pxStaticRingbuffer);
|
|
#endif
|
|
|
|
/**
|
|
* @brief Insert an item into the ring buffer
|
|
*
|
|
* Attempt to insert an item into the ring buffer. This function will block until
|
|
* enough free space is available or until it times out.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to insert the item into
|
|
* @param[in] pvItem Pointer to data to insert. NULL is allowed if xItemSize is 0.
|
|
* @param[in] xItemSize Size of data to insert.
|
|
* @param[in] xTicksToWait Ticks to wait for room in the ring buffer.
|
|
*
|
|
* @note For no-split/allow-split ring buffers, the actual size of memory that
|
|
* the item will occupy will be rounded up to the nearest 32-bit aligned
|
|
* size. This is done to ensure all items are always stored in 32-bit
|
|
* aligned fashion.
|
|
*
|
|
* @return
|
|
* - pdTRUE if succeeded
|
|
* - pdFALSE on time-out or when the data is larger than the maximum permissible size of the buffer
|
|
*/
|
|
BaseType_t xRingbufferSend(RingbufHandle_t xRingbuffer,
|
|
const void *pvItem,
|
|
size_t xItemSize,
|
|
TickType_t xTicksToWait);
|
|
|
|
/**
|
|
* @brief Insert an item into the ring buffer in an ISR
|
|
*
|
|
* Attempt to insert an item into the ring buffer from an ISR. This function
|
|
* will return immediately if there is insufficient free space in the buffer.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to insert the item into
|
|
* @param[in] pvItem Pointer to data to insert. NULL is allowed if xItemSize is 0.
|
|
* @param[in] xItemSize Size of data to insert.
|
|
* @param[out] pxHigherPriorityTaskWoken Value pointed to will be set to pdTRUE if the function woke up a higher priority task.
|
|
*
|
|
* @note For no-split/allow-split ring buffers, the actual size of memory that
|
|
* the item will occupy will be rounded up to the nearest 32-bit aligned
|
|
* size. This is done to ensure all items are always stored in 32-bit
|
|
* aligned fashion.
|
|
*
|
|
* @return
|
|
* - pdTRUE if succeeded
|
|
* - pdFALSE when the ring buffer does not have space.
|
|
*/
|
|
BaseType_t xRingbufferSendFromISR(RingbufHandle_t xRingbuffer,
|
|
const void *pvItem,
|
|
size_t xItemSize,
|
|
BaseType_t *pxHigherPriorityTaskWoken);
|
|
|
|
/**
|
|
* @brief Acquire memory from the ring buffer to be written to by an external
|
|
* source and to be sent later.
|
|
*
|
|
* Attempt to allocate buffer for an item to be sent into the ring buffer. This
|
|
* function will block until enough free space is available or until it
|
|
* times out.
|
|
*
|
|
* The item, as well as the following items ``SendAcquire`` or ``Send`` after it,
|
|
* will not be able to be read from the ring buffer until this item is actually
|
|
* sent into the ring buffer.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to allocate the memory
|
|
* @param[out] ppvItem Double pointer to memory acquired (set to NULL if no memory were retrieved)
|
|
* @param[in] xItemSize Size of item to acquire.
|
|
* @param[in] xTicksToWait Ticks to wait for room in the ring buffer.
|
|
*
|
|
* @note Only applicable for no-split ring buffers now, the actual size of
|
|
* memory that the item will occupy will be rounded up to the nearest 32-bit
|
|
* aligned size. This is done to ensure all items are always stored in 32-bit
|
|
* aligned fashion.
|
|
*
|
|
* @return
|
|
* - pdTRUE if succeeded
|
|
* - pdFALSE on time-out or when the data is larger than the maximum permissible size of the buffer
|
|
*/
|
|
BaseType_t xRingbufferSendAcquire(RingbufHandle_t xRingbuffer, void **ppvItem, size_t xItemSize, TickType_t xTicksToWait);
|
|
|
|
/**
|
|
* @brief Actually send an item into the ring buffer allocated before by
|
|
* ``xRingbufferSendAcquire``.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to insert the item into
|
|
* @param[in] pvItem Pointer to item in allocated memory to insert.
|
|
*
|
|
* @note Only applicable for no-split ring buffers. Only call for items
|
|
* allocated by ``xRingbufferSendAcquire``.
|
|
*
|
|
* @return
|
|
* - pdTRUE if succeeded
|
|
* - pdFALSE if fail for some reason.
|
|
*/
|
|
BaseType_t xRingbufferSendComplete(RingbufHandle_t xRingbuffer, void *pvItem);
|
|
|
|
/**
|
|
* @brief Retrieve an item from the ring buffer
|
|
*
|
|
* Attempt to retrieve an item from the ring buffer. This function will block
|
|
* until an item is available or until it times out.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to retrieve the item from
|
|
* @param[out] pxItemSize Pointer to a variable to which the size of the retrieved item will be written.
|
|
* @param[in] xTicksToWait Ticks to wait for items in the ring buffer.
|
|
*
|
|
* @note A call to vRingbufferReturnItem() is required after this to free the item retrieved.
|
|
*
|
|
* @return
|
|
* - Pointer to the retrieved item on success; *pxItemSize filled with the length of the item.
|
|
* - NULL on timeout, *pxItemSize is untouched in that case.
|
|
*/
|
|
void *xRingbufferReceive(RingbufHandle_t xRingbuffer, size_t *pxItemSize, TickType_t xTicksToWait);
|
|
|
|
/**
|
|
* @brief Retrieve an item from the ring buffer in an ISR
|
|
*
|
|
* Attempt to retrieve an item from the ring buffer. This function returns immediately
|
|
* if there are no items available for retrieval
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to retrieve the item from
|
|
* @param[out] pxItemSize Pointer to a variable to which the size of the
|
|
* retrieved item will be written.
|
|
*
|
|
* @note A call to vRingbufferReturnItemFromISR() is required after this to free the item retrieved.
|
|
* @note Byte buffers do not allow multiple retrievals before returning an item
|
|
* @note Two calls to RingbufferReceiveFromISR() are required if the bytes wrap around the end of the ring buffer.
|
|
*
|
|
* @return
|
|
* - Pointer to the retrieved item on success; *pxItemSize filled with the length of the item.
|
|
* - NULL when the ring buffer is empty, *pxItemSize is untouched in that case.
|
|
*/
|
|
void *xRingbufferReceiveFromISR(RingbufHandle_t xRingbuffer, size_t *pxItemSize);
|
|
|
|
/**
|
|
* @brief Retrieve a split item from an allow-split ring buffer
|
|
*
|
|
* Attempt to retrieve a split item from an allow-split ring buffer. If the item
|
|
* is not split, only a single item is retried. If the item is split, both parts
|
|
* will be retrieved. This function will block until an item is available or
|
|
* until it times out.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to retrieve the item from
|
|
* @param[out] ppvHeadItem Double pointer to first part (set to NULL if no items were retrieved)
|
|
* @param[out] ppvTailItem Double pointer to second part (set to NULL if item is not split)
|
|
* @param[out] pxHeadItemSize Pointer to size of first part (unmodified if no items were retrieved)
|
|
* @param[out] pxTailItemSize Pointer to size of second part (unmodified if item is not split)
|
|
* @param[in] xTicksToWait Ticks to wait for items in the ring buffer.
|
|
*
|
|
* @note Call(s) to vRingbufferReturnItem() is required after this to free up the item(s) retrieved.
|
|
* @note This function should only be called on allow-split buffers
|
|
*
|
|
* @return
|
|
* - pdTRUE if an item (split or unsplit) was retrieved
|
|
* - pdFALSE when no item was retrieved
|
|
*/
|
|
BaseType_t xRingbufferReceiveSplit(RingbufHandle_t xRingbuffer,
|
|
void **ppvHeadItem,
|
|
void **ppvTailItem,
|
|
size_t *pxHeadItemSize,
|
|
size_t *pxTailItemSize,
|
|
TickType_t xTicksToWait);
|
|
|
|
/**
|
|
* @brief Retrieve a split item from an allow-split ring buffer in an ISR
|
|
*
|
|
* Attempt to retrieve a split item from an allow-split ring buffer. If the item
|
|
* is not split, only a single item is retried. If the item is split, both parts
|
|
* will be retrieved. This function returns immediately if there are no items
|
|
* available for retrieval
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to retrieve the item from
|
|
* @param[out] ppvHeadItem Double pointer to first part (set to NULL if no items were retrieved)
|
|
* @param[out] ppvTailItem Double pointer to second part (set to NULL if item is not split)
|
|
* @param[out] pxHeadItemSize Pointer to size of first part (unmodified if no items were retrieved)
|
|
* @param[out] pxTailItemSize Pointer to size of second part (unmodified if item is not split)
|
|
*
|
|
* @note Calls to vRingbufferReturnItemFromISR() is required after this to free up the item(s) retrieved.
|
|
* @note This function should only be called on allow-split buffers
|
|
*
|
|
* @return
|
|
* - pdTRUE if an item (split or unsplit) was retrieved
|
|
* - pdFALSE when no item was retrieved
|
|
*/
|
|
BaseType_t xRingbufferReceiveSplitFromISR(RingbufHandle_t xRingbuffer,
|
|
void **ppvHeadItem,
|
|
void **ppvTailItem,
|
|
size_t *pxHeadItemSize,
|
|
size_t *pxTailItemSize);
|
|
|
|
/**
|
|
* @brief Retrieve bytes from a byte buffer, specifying the maximum amount of bytes to retrieve
|
|
*
|
|
* Attempt to retrieve data from a byte buffer whilst specifying a maximum number
|
|
* of bytes to retrieve. This function will block until there is data available
|
|
* for retrieval or until it times out.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to retrieve the item from
|
|
* @param[out] pxItemSize Pointer to a variable to which the size of the retrieved item will be written.
|
|
* @param[in] xTicksToWait Ticks to wait for items in the ring buffer.
|
|
* @param[in] xMaxSize Maximum number of bytes to return.
|
|
*
|
|
* @note A call to vRingbufferReturnItem() is required after this to free up the data retrieved.
|
|
* @note This function should only be called on byte buffers
|
|
* @note Byte buffers do not allow multiple retrievals before returning an item
|
|
* @note Two calls to RingbufferReceiveUpTo() are required if the bytes wrap around the end of the ring buffer.
|
|
*
|
|
* @return
|
|
* - Pointer to the retrieved item on success; *pxItemSize filled with
|
|
* the length of the item.
|
|
* - NULL on timeout, *pxItemSize is untouched in that case.
|
|
*/
|
|
void *xRingbufferReceiveUpTo(RingbufHandle_t xRingbuffer,
|
|
size_t *pxItemSize,
|
|
TickType_t xTicksToWait,
|
|
size_t xMaxSize);
|
|
|
|
/**
|
|
* @brief Retrieve bytes from a byte buffer, specifying the maximum amount of
|
|
* bytes to retrieve. Call this from an ISR.
|
|
*
|
|
* Attempt to retrieve bytes from a byte buffer whilst specifying a maximum number
|
|
* of bytes to retrieve. This function will return immediately if there is no data
|
|
* available for retrieval.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to retrieve the item from
|
|
* @param[out] pxItemSize Pointer to a variable to which the size of the retrieved item will be written.
|
|
* @param[in] xMaxSize Maximum number of bytes to return.
|
|
*
|
|
* @note A call to vRingbufferReturnItemFromISR() is required after this to free up the data received.
|
|
* @note This function should only be called on byte buffers
|
|
* @note Byte buffers do not allow multiple retrievals before returning an item
|
|
*
|
|
* @return
|
|
* - Pointer to the retrieved item on success; *pxItemSize filled with
|
|
* the length of the item.
|
|
* - NULL when the ring buffer is empty, *pxItemSize is untouched in that case.
|
|
*/
|
|
void *xRingbufferReceiveUpToFromISR(RingbufHandle_t xRingbuffer, size_t *pxItemSize, size_t xMaxSize);
|
|
|
|
/**
|
|
* @brief Return a previously-retrieved item to the ring buffer
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer the item was retrieved from
|
|
* @param[in] pvItem Item that was received earlier
|
|
*
|
|
* @note If a split item is retrieved, both parts should be returned by calling this function twice
|
|
*/
|
|
void vRingbufferReturnItem(RingbufHandle_t xRingbuffer, void *pvItem);
|
|
|
|
/**
|
|
* @brief Return a previously-retrieved item to the ring buffer from an ISR
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer the item was retrieved from
|
|
* @param[in] pvItem Item that was received earlier
|
|
* @param[out] pxHigherPriorityTaskWoken Value pointed to will be set to pdTRUE
|
|
* if the function woke up a higher priority task.
|
|
*
|
|
* @note If a split item is retrieved, both parts should be returned by calling this function twice
|
|
*/
|
|
void vRingbufferReturnItemFromISR(RingbufHandle_t xRingbuffer, void *pvItem, BaseType_t *pxHigherPriorityTaskWoken);
|
|
|
|
/**
|
|
* @brief Delete a ring buffer
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to delete
|
|
*
|
|
* @note This function will not deallocate any memory if the ring buffer was
|
|
* created using xRingbufferCreateStatic(). Deallocation must be done
|
|
* manually be the user.
|
|
*/
|
|
void vRingbufferDelete(RingbufHandle_t xRingbuffer);
|
|
|
|
/**
|
|
* @brief Get maximum size of an item that can be placed in the ring buffer
|
|
*
|
|
* This function returns the maximum size an item can have if it was placed in
|
|
* an empty ring buffer.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to query
|
|
*
|
|
* @note The max item size for a no-split buffer is limited to
|
|
* ((buffer_size/2)-header_size). This limit is imposed so that an item
|
|
* of max item size can always be sent to an empty no-split buffer
|
|
* regardless of the internal positions of the buffer's read/write/free
|
|
* pointers.
|
|
*
|
|
* @return Maximum size, in bytes, of an item that can be placed in a ring buffer.
|
|
*/
|
|
size_t xRingbufferGetMaxItemSize(RingbufHandle_t xRingbuffer);
|
|
|
|
/**
|
|
* @brief Get current free size available for an item/data in the buffer
|
|
*
|
|
* This gives the real time free space available for an item/data in the ring
|
|
* buffer. This represents the maximum size an item/data can have if it was
|
|
* currently sent to the ring buffer.
|
|
*
|
|
* @warning This API is not thread safe. So, if multiple threads are accessing
|
|
* the same ring buffer, it is the application's responsibility to
|
|
* ensure atomic access to this API and the subsequent Send
|
|
*
|
|
* @note An empty no-split buffer has a max current free size for an item
|
|
* that is limited to ((buffer_size/2)-header_size). See API reference
|
|
* for xRingbufferGetMaxItemSize().
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to query
|
|
*
|
|
* @return Current free size, in bytes, available for an entry
|
|
*/
|
|
size_t xRingbufferGetCurFreeSize(RingbufHandle_t xRingbuffer);
|
|
|
|
/**
|
|
* @brief Add the ring buffer's read semaphore to a queue set.
|
|
*
|
|
* The ring buffer's read semaphore indicates that data has been written
|
|
* to the ring buffer. This function adds the ring buffer's read semaphore to
|
|
* a queue set.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to add to the queue set
|
|
* @param[in] xQueueSet Queue set to add the ring buffer's read semaphore to
|
|
*
|
|
* @return
|
|
* - pdTRUE on success, pdFALSE otherwise
|
|
*/
|
|
BaseType_t xRingbufferAddToQueueSetRead(RingbufHandle_t xRingbuffer, QueueSetHandle_t xQueueSet);
|
|
|
|
|
|
/**
|
|
* @brief Check if the selected queue set member is the ring buffer's read semaphore
|
|
*
|
|
* This API checks if queue set member returned from xQueueSelectFromSet()
|
|
* is the read semaphore of this ring buffer. If so, this indicates the ring buffer
|
|
* has items waiting to be retrieved.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer which should be checked
|
|
* @param[in] xMember Member returned from xQueueSelectFromSet
|
|
*
|
|
* @return
|
|
* - pdTRUE when semaphore belongs to ring buffer
|
|
* - pdFALSE otherwise.
|
|
*/
|
|
BaseType_t xRingbufferCanRead(RingbufHandle_t xRingbuffer, QueueSetMemberHandle_t xMember);
|
|
|
|
/**
|
|
* @brief Remove the ring buffer's read semaphore from a queue set.
|
|
*
|
|
* This specifically removes a ring buffer's read semaphore from a queue set. The
|
|
* read semaphore is used to indicate when data has been written to the ring buffer
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to remove from the queue set
|
|
* @param[in] xQueueSet Queue set to remove the ring buffer's read semaphore from
|
|
*
|
|
* @return
|
|
* - pdTRUE on success
|
|
* - pdFALSE otherwise
|
|
*/
|
|
BaseType_t xRingbufferRemoveFromQueueSetRead(RingbufHandle_t xRingbuffer, QueueSetHandle_t xQueueSet);
|
|
|
|
/**
|
|
* @brief Get information about ring buffer status
|
|
*
|
|
* Get information of a ring buffer's current status such as
|
|
* free/read/write/acquire pointer positions, and number of items waiting to be retrieved.
|
|
* Arguments can be set to NULL if they are not required.
|
|
*
|
|
* @param[in] xRingbuffer Ring buffer to remove from the queue set
|
|
* @param[out] uxFree Pointer use to store free pointer position
|
|
* @param[out] uxRead Pointer use to store read pointer position
|
|
* @param[out] uxWrite Pointer use to store write pointer position
|
|
* @param[out] uxAcquire Pointer use to store acquire pointer position
|
|
* @param[out] uxItemsWaiting Pointer use to store number of items (bytes for byte buffer) waiting to be retrieved
|
|
*/
|
|
void vRingbufferGetInfo(RingbufHandle_t xRingbuffer,
|
|
UBaseType_t *uxFree,
|
|
UBaseType_t *uxRead,
|
|
UBaseType_t *uxWrite,
|
|
UBaseType_t *uxAcquire,
|
|
UBaseType_t *uxItemsWaiting);
|
|
|
|
/**
|
|
* @brief Debugging function to print the internal pointers in the ring buffer
|
|
*
|
|
* @param xRingbuffer Ring buffer to show
|
|
*/
|
|
void xRingbufferPrintInfo(RingbufHandle_t xRingbuffer);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* FREERTOS_RINGBUF_H */
|