mirror/haproxy
1
0
Fork 0
mirror of http://git.haproxy.org/git/haproxy.git synced 2026-02-13 12:02:38 +02:00
Code Issues Packages Projects Releases Wiki Activity

MINOR: pattern: support purging arbitrary ranges of generations

Browse Source 
Instead of being able to purge only values older than a specific value,
let's support arbitrary ranges and make pat_ref_purge_older() just be
one special case of this one.
This commit is contained in:
Willy Tarreau
2021-04-30 13:19:37 +02:00
parent 95f753e403
commit a13afe6535
2 changed files with 22 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/haproxy/pattern.h
View File

@@ -192,7 +192,7 @@ void pat_ref_delete_by_ptr(struct pat_ref *ref, struct pat_ref_elt *elt);
int pat_ref_delete_by_id(struct pat_ref *ref, struct pat_ref_elt *refelt);
int pat_ref_prune(struct pat_ref *ref);
int pat_ref_commit_elt(struct pat_ref *ref, struct pat_ref_elt *elt, char **err);
int pat_ref_purge_older(struct pat_ref *ref, unsigned int oldest, int budget);
int pat_ref_purge_range(struct pat_ref *ref, uint from, uint to, int budget);
void pat_ref_reload(struct pat_ref *ref, struct pat_ref *replace);
/* Create a new generation number for next pattern updates and returns it. This
@@ -237,6 +237,20 @@ static inline int pat_ref_commit(struct pat_ref *ref, unsigned int gen)
return gen - ref->curr_gen;
}
/* This function purges all elements from <ref> that are older than generation
* <oldest>. It will not purge more than <budget> entries at once, in order to
* remain responsive. If budget is negative, no limit is applied.
* The caller must already hold the PATREF_LOCK on <ref>. The function will
* take the PATEXP_LOCK on all expressions of the pattern as needed. It returns
* non-zero on completion, or zero if it had to stop before the end after
* <budget> was depleted.
*/
static inline int pat_ref_purge_older(struct pat_ref *ref, uint oldest, int budget)
{
return pat_ref_purge_range(ref, oldest + 1, oldest - 1, budget);
}
/*
* pattern_head manipulation.
*/