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Diffstat (limited to 'upstream/mageia-cauldron/man9/skb_dequeue.9')
| -rw-r--r-- | upstream/mageia-cauldron/man9/skb_dequeue.9 | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/upstream/mageia-cauldron/man9/skb_dequeue.9 b/upstream/mageia-cauldron/man9/skb_dequeue.9 new file mode 100644 index 00000000..64a852be --- /dev/null +++ b/upstream/mageia-cauldron/man9/skb_dequeue.9 @@ -0,0 +1,65 @@ +.\" -*- nroff -*- +.\" +.\" copyright (C) 1997 Cyrus Durgin <cider@speakeasy.org> +.\" +.\" Permission is granted to make and distribute verbatim copies of this +.\" manual provided the copyright notice and this permission notice are +.\" preserved on all copies. +.\" +.\" Permission is granted to copy and distribute modified versions of this +.\" manual under the conditions for verbatim copying, provided that the +.\" entire resulting derived work is distributed under the terms of a +.\" permission notice identical to this one +.\" +.\" Since the Linux kernel and libraries are constantly changing, this +.\" manual page may be incorrect or out-of-date. The author(s) assume no +.\" responsibility for errors or omissions, or for damages resulting from +.\" the use of the information contained herein. The author(s) may not +.\" have taken the same level of care in the production of this manual, +.\" which is licensed free of charge, as they might when working +.\" professionally. +.\" +.\" Formatted or processed versions of this manual, if unaccompanied by +.\" the source, must acknowledge the copyright and authors of this work. +.\" +.TH SKB_DEQUEUE 9 "November 24, 1997" "Linux DDI" "Networking Functions" +.hlm 0 +.na +.SH NAME +__skb_dequeue, skb_dequeue \- remove an sk_buff from the head of a list +.SH SYNOPSIS +.B #include <linux/skbuff.h> +.HP +.BI "struct sk_buff *__skb_dequeue(struct sk_buff_head " *list ");" +.TP +.BI "struct sk_buff *skb_dequeue(struct sk_buff_head " *list ");" +.hlm 1 +.ad +.SH DESCRIPTION +The \fBskb_dequeue\fP function removes the head element of an sk_buff_head. +It decrements the list qlen pointer, and cleanly detaches the head from +the queue. This function should be used instead of performing this task +manually, as it provides a clean, standardized way of manipulating an +sk_buff_head, and provides interrupt disabling (see \fBNOTES\fP below.) +.SH "RETURN VALUE" +Returns a pointer to the head element of \fIlist\fP, or \fBNULL\fP if +\fIlist\fP is empty. +.SH NOTES +It is important to note the difference between not only \fB__skb_dequeue\fP +and \fBskb_dequeue\fP, but all the \fB__skb_\fP functions and their +\fBskb_\fP counterparts. Essentially, the \fB__skb_\fP functions are +non-atomic, and should only be used with interrupts disabled. As a convenience, +the \fBskb_\fP functions are provided, which perform interrupt disable / +enable wrapper functionality in addition to performing their specific tasks. +.SH AVAILABILITY +Linux 1.0+ +.SH "SEE ALSO" +.hlm 0 +.na +.BR intro "(9), " skb_unlink "(9), " skb_insert "(9), " skb_queue_head "(9), " skb_queue_tail "(9)" +.ad +.hlm 1 +.PP +/usr/src/linux/net/netlink.c /usr/src/linux/net/ax25/af_ax25.c /usr/src/linux/net/core/datagram.c /usr/src/linux/net/ipv4/ipmr.c /usr/src/linux/net/ipv4/tcp.c +.SH AUTHOR +Cyrus Durgin <cider@speakeasy.org> |