pxcloud/spice
5
0
Fork 0
mirror of https://gitlab.uni-freiburg.de/opensourcevdi/spice synced 2025-12-31 11:28:31 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ring: add RING_FOREACH{,_SAFE,_REVERSED}

Browse Source
This commit is contained in:
Alon Levy 2010-11-09 23:01:39 +02:00
parent 38e13ef1a8
commit 6b86259646
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
common/ring.h
View File

@ -19,6 +19,8 @@
#ifndef _H_RING2
#define _H_RING2
#include "spice_common.h"
typedef struct Ring RingItem;
typedef struct Ring {
RingItem *prev;
@ -129,5 +131,24 @@ static inline RingItem *ring_prev(Ring *ring, RingItem *pos)
return (ret == ring) ? NULL : ret;
}
#define RING_FOREACH_SAFE(var, next, ring) \
for ((var) = ring_get_head(ring), \
(next) = (var) ? ring_next(ring, (var)) : NULL; \
(var); \
(var) = (next), \
(next) = (var) ? ring_next(ring, (var)) : NULL)
#define RING_FOREACH(var, ring) \
for ((var) = ring_get_head(ring); \
(var); \
(var) = ring_next(ring, var))
#define RING_FOREACH_REVERSED(var, ring) \
for ((var) = ring_get_tail(ring); \
(var); \
(var) = ring_prev(ring, var))
#endif