Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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.. _spsc_pbuf:
Single Producer Single Consumer Packet Buffer
=============================================
A :dfn:`Single Producer Single Consumer Packet Buffer (SPSC_PBUF)` is a circular
buffer, whose contents are stored in first-in-first-out order. Variable size
packets are stored in the buffer. Packet buffer works under assumption that there
is a single context that produces packets and a single context that consumes the
data.
Implementation is focused on performance and memory footprint.
Packets are added to the buffer using :c:func:`spsc_pbuf_write` which copies a
data into the buffer. If the buffer is full error is returned.
Packets are copied out of the buffer using :c:func:`spsc_pbuf_read`.