net_buf_simple Struct Reference

Simple network buffer representation. More...

#include <buf.h>

Data Fields
uint8_t *	data
	Pointer to the start of data in the buffer.
uint16_t	len
	Length of the data behind the data pointer.
uint16_t	size
	Amount of data that net_buf_simple::__buf can store.

Detailed Description

Simple network buffer representation.

This is a simpler variant of the net_buf object (in fact net_buf uses net_buf_simple internally). It doesn't provide any kind of reference counting, user data, dynamic allocation, or in general the ability to pass through kernel objects such as FIFOs.

The main use of this is for scenarios where the meta-data of the normal net_buf isn't needed and causes too much overhead. This could be e.g. when the buffer only needs to be allocated on the stack or when the access to and lifetime of the buffer is well controlled and constrained.

Field Documentation

data

uint8_t* net_buf_simple::data

Pointer to the start of data in the buffer.

len

uint16_t net_buf_simple::len

Length of the data behind the data pointer.

To determine the max length, use net_buf_simple_max_len(), not size!

size

uint16_t net_buf_simple::size

Amount of data that net_buf_simple::__buf can store.

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The documentation for this struct was generated from the following file:

• zephyr/net/buf.h