A CAN frame buffer. More...

#include <buf.h>

Collaboration diagram for can_buf:

Data Fields
struct can_msg *	ptr
	A pointer to the allocated memory for the buffer.

size_t	size
	The total size (in number of frames) of the buffer, excluding the unused frame used to distinguish between a full and an empty buffer.

size_t	begin
	The offset (with respect to ptr) of the first value available for reading (and two past the last available for writing, modulo size + 1).

size_t	end
	The offset (with respect to ptr) of one past the last value available for reading (and the first available for writing, modulo size + 1).

Detailed Description

A CAN frame buffer.

Definition at line 42 of file buf.h.

Field Documentation

size_t can_buf::size

The total size (in number of frames) of the buffer, excluding the unused frame used to distinguish between a full and an empty buffer.

This needs to be a power of two minus one, so we can use '& size' instead of '% (size + 1)' in wrapping calculations.

Definition at line 51 of file buf.h.

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