Hi,
I am transferring 100 bytes of data via BLE-Mesh from a vendor client model, which I need to receive in my vendor server model.
I referred to nCS provided chat sample, where I noticed below data extraction code:
static const uint8_t *extract_msg(struct net_buf_simple *buf)
{
buf->data[buf->len - 1] = '\0';
return net_buf_simple_pull_mem(buf, buf->len);
}
static int handle_message(struct bt_mesh_model *model, struct bt_mesh_msg_ctx *ctx,
struct net_buf_simple *buf)
{
struct bt_mesh_chat_cli *chat = model->user_data;
const uint8_t *msg;
msg = extract_msg(buf);
if (chat->handlers->message) {
chat->handlers->message(chat, ctx, msg);
}
return 0;
}
My questions are:
- What's the max len of data buffer that can be received.?
- How do I modify the size of data buffer..? I couldn't find where the net_buf_simple struct field for size buf->len is being set.
- How would the usage of net_buf_simple_pull_mem( ) look like to pull 100bytes..?
- This 100bytes data, can I typecast into my user structure to populate struct fields..?
Thanks,
Ubaid
