/**
* Generate a new random (modern) message ID for pings.
*/
void
guid_ping_muid(struct guid *muid)
{
guid_random_fill(muid);
guid_flag_modern(muid);
guid_flag_gtkg(muid); /* Mark as being from GTKG */
}
/**
* Generate a new GUID atom that is not already conflicting with any other
* GUID recorded in the supplied hikset (hash set with values pointing to
* the GUID key).
*
* @attention
* It is up to the caller to later insert the value referencing this GUID in
* the hikset to prevent further duplicates. To avoid race conditions between
* the checking of the hiset and the insertion, the hikset should be locked
* if it is shared by multiple threads.
*
* @param hik the hikset against which we need to check for duplicates
* @param gtkg whether to flag the GUID as being generated by GTKG.
*
* @return a new unique GUID atom.
*/
const guid_t *
guid_unique_atom(const hikset_t *hik, bool gtkg)
{
int i;
guid_t guid;
entropy_harvest_time();
for (i = 0; i < 100; i++) {
guid_random_fill(&guid);
if (gtkg)
guid_flag_gtkg(&guid); /* Mark as being from GTKG */
if (NULL == hikset_lookup(hik, &guid))
return atom_guid_get(&guid);
}
g_error("%s(): no luck with random number generator", G_STRFUNC);
}
/**
* Generate a new random GUID, flagged as GTKG.
*/
void
guid_random_muid(guid_t *muid)
{
guid_random_fill(muid);
guid_flag_gtkg(muid); /* Mark as being from GTKG */
}
