ATL / WTL / STL

#define PLEASE_SEE_SIZE_OF_POST_TASK_DATA_PARAMETER    (1)

struct postTaskInfo_s {
    task_t                         postTask;
    taskQueueSelector_e            postTaskQueueSelector;
    uint16_t                       sizeOfPostTaskData;
    uint8_t                        postTaskData[PLEASE_SEE_SIZE_OF_POST_TASK_DATA_PARAMETER]
};

arnold_w wrote:

I must make sure dataToWrite points to the proper location inside my task queue data pool and not on the original buffer on the stack.

typedef enum {
    USE_STATIC_NON_QUEUED_WRITE_DATA   = 0,
    DATA_TO_WRITE_APPEARS_AFTER_STRUCT = 1
} writeBufferLocationOption_e;

struct writeRegTaskData_s {
    uint32_t startAddr;
    uint16_t numRegsToWrite;
    writeBufferLocationOption_e writeBufferLocationOption;
    uint8_t* dataToWrite // Set to NULL if writeBufferLocationOption = DATA_TO_WRITE_APPEARS_AFTER_STRUCT
    // If writeBufferLocationOption = DATA_TO_WRITE_APPEARS_AFTER_STRUCT then the data to write will appear here
}

Bool_t addTaskToQueue(queueSelector_e, task_t, uint8_t* taskData1, uint16_t sizeOfTaskDataInBytes1, uint8_t* taskData2, uint16_t sizeOfTaskDataInBytes2);

struct writeRegTaskData_s {
    writeBufferLocationOption_e writeBufferLocationOption;
    uint16_t numRegsToWrite;
    uint8_t  dataToWrite[1]; // start of actual data
}

struct packet_s {
    uint32_t  extID;
    uint8_t   DLC;    // Data Length Count (=size of packet in bytes)
    uint8_t*  data;
};

#define PLEASE_SEE_DLC_FOR_PACKET_SIZE     (1)

struct packet_s {
    uint32_t  extID;
    uint8_t   DLC;    // Data Length Count (=size of packet in bytes)
    uint8_t   data[PLEASE_SEE_DLC_FOR_PACKET_SIZE];
};

struct demo_s {
  int     first;
  int     second;
  int     third;
};
struct demo_s demo2 = { .second = 2, .third = 3 };