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gex-core/comm/msg_bulkwrite.h

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//
// Created by MightyPork on 2017/12/23.
//
#ifndef GEX_F072_MSG_BULKWRITE_H
#define GEX_F072_MSG_BULKWRITE_H
#include <TinyFrame.h>
typedef struct bulk_write BulkWrite;
/**
* Type of the bulk-write listener. Offset within the data can be retrieved from bulk->offset.
*
* If buffer is NULL, this is the last call and the bulk struct must be freed if it was allocated.
*
* @param bulk - a data object passed to the bulkwrite_start() function.
* @param chunk - destination buffer to fill with the data. NULL if bulk should be freed.
* @param len - size of the chunk to write
*/
typedef void (*bulkwrite_data_cb)(BulkWrite *bulk, const uint8_t *chunk, uint32_t len);
/** Bulk read structure */
struct bulk_write {
TF_ID frame_id; //!< ID of the requesting frame, used for the entire bulk read session
bulkwrite_data_cb write; //!< Write callback
uint32_t len; //!< Total data length
void *userdata; //!< A place for arbitrary userdata
uint32_t offset; //!< Internal offset counter, will be set to 0 on start.
};
/**
* Start a bulk write session
* @param tf - tinyframe instance
* @param bulk - bulk write config structure (malloc'd or static)
*/
void bulkwrite_start(TinyFrame *tf, BulkWrite *bulk);
#endif //GEX_F072_MSG_BULKWRITE_H