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skb_peek
Langue: en
Version: November 24, 1997 (mandriva - 22/10/07)
Section: 9 (Appels noyau Linux)
NAME
skb_peek - peek an sk_buffSYNOPSIS
#include <linux/skbuff.h>- struct sk_buff *skb_peek(struct sk_buff_head *list_);
DESCRIPTION
- The skb_peek function extracts the head element of list_, without modifying list_. It is important to note that this is not necessarily a safe operation, as list_ maintains the original sk_buff, and other operations on list_ may effect it. To be safe, either disable interrupts using cli(9), call skb_peek, copy the data necessary to continue, and re-enable interrupts using sti(9), or use skb_dequeue(9).
RETURN VALUE
Returns a pointer to sk_buff if there is a next element on the list_. Otherwise, returns NULL.AVAILABILITY
Linux 1.0+SEE ALSO
intro(9), skb_unlink(9), skb_dequeue(9)/usr/src/linux/net/appletalk/ddp.c /usr/src/linux/net/core/datagram.c /usr/src/linux/net/ipv4/tcp.c /usr/src/linux/net/ipv4/udp.c /usr/src/linux/net/unix/af_unix.c
AUTHOR
Cyrus Durgin <cider@speakeasy.org>Contenus ©2006-2024 Benjamin Poulain
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