restartable cache

"-e /path/to/tmpfsmnt/file"
SIGUSR1 for graceful stop

restart requires the same memory limit, slab sizes, and some other
infrequently changed details. Most other options and features can
change between restarts. Binary can be upgraded between restarts.

Restart does some fixup work on start for every item in cache. Can take
over a minute with more than a few hundred million items in cache.

Keep in mind when a cache is down it may be missing invalidations,
updates, and so on.

1 files changed, 2 insertions, 0 deletions

diff --git a/util.h b/util.h
index 825cc9e..dc646a2 100644
--- a/util.h
+++ b/util.h
@@ -12,10 +12,12 @@ bool uriencode(const char *src, char *dst, const size_t srclen, const size_t dst
  * returns true if conversion succeeded.
  */
 bool safe_strtoull(const char *str, uint64_t *out);
+bool safe_strtoull_hex(const char *str, uint64_t *out);
 bool safe_strtoll(const char *str, int64_t *out);
 bool safe_strtoul(const char *str, uint32_t *out);
 bool safe_strtol(const char *str, int32_t *out);
 bool safe_strtod(const char *str, double *out);
+bool safe_strcpy(char *dst, const char *src, const size_t dstmax);
 
 #ifndef HAVE_HTONLL
 extern uint64_t htonll(uint64_t);