From 69d5f92b38f55aa82daeb4698a826509bf725891 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= Date: Thu, 16 Jun 2022 15:12:29 +0200 Subject: [PATCH] libsepol: add ebitmap iterator wrapper with startnode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Similar like ebitmap_for_each_bit() iterates over all bits of an ebitmap add ebitmap_for_each_bit_starting() iterating over all bits starting from a specific node and bit, which can be from an outer iteration. Signed-off-by: Christian Göttsche --- v2: * use _after suffix * reorder parameters --- libsepol/include/sepol/policydb/ebitmap.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libsepol/include/sepol/policydb/ebitmap.h b/libsepol/include/sepol/policydb/ebitmap.h index 81d0c7a673..4696805fb1 100644 --- a/libsepol/include/sepol/policydb/ebitmap.h +++ b/libsepol/include/sepol/policydb/ebitmap.h @@ -80,6 +80,13 @@ static inline int ebitmap_node_get_bit(const ebitmap_node_t * n, unsigned int bi #define ebitmap_for_each_positive_bit(e, n, bit) \ ebitmap_for_each_bit(e, n, bit) if (ebitmap_node_get_bit(n, bit)) \ +#define ebitmap_for_each_bit_after(e, n, bit, startnode, startbit) \ + n = startnode; \ + for (bit = ebitmap_next(&n, startbit); bit < ebitmap_length(e); bit = ebitmap_next(&n, bit)) \ + +#define ebitmap_for_each_positive_bit_after(e, n, bit, startnode, startbit) \ + ebitmap_for_each_bit_after(e, n, bit, startnode, startbit) if (ebitmap_node_get_bit(n, bit)) \ + extern int ebitmap_cmp(const ebitmap_t * e1, const ebitmap_t * e2); extern int ebitmap_or(ebitmap_t * dst, const ebitmap_t * e1, const ebitmap_t * e2); extern int ebitmap_union(ebitmap_t * dst, const ebitmap_t * e1);