diff options
Diffstat (limited to 'src/libunixonacid/kolbak_unenqueue.c')
-rw-r--r-- | src/libunixonacid/kolbak_unenqueue.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/libunixonacid/kolbak_unenqueue.c b/src/libunixonacid/kolbak_unenqueue.c new file mode 100644 index 0000000..894beea --- /dev/null +++ b/src/libunixonacid/kolbak_unenqueue.c @@ -0,0 +1,11 @@ +/* ISC license. */ + +#include <errno.h> +#include <skalibs/kolbak.h> + +int kolbak_unenqueue (kolbak_queue_t *q) +{ + if (q->head == q->tail) return (errno = EINVAL, 0) ; + q->tail = (q->tail + q->n - 1) % q->n ; + return 1 ; +} |