---
name: "kfifo_peek"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/kfifo_peek"
---

# kfifo\_peek(9)

get data from the fifo without removing

## NAME

kfifo\_peek - get data from the fifo without removing

## SYNOPSIS

**kfifo\_peek(***fifo***,** *val***);**

## ARGUMENTS

*fifo*

address of the fifo to be used

*val*

address where to store the data

## DESCRIPTION

This reads the data from the fifo without removing it from the fifo. It returns 0 if the fifo was empty. Otherwise it returns the number processed elements.

Note that with only one concurrent reader and one concurrent writer, you don't need extra locking to use these macro.

## COPYRIGHT