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Clean up backend comparison function

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Renamed and reorganized the function that compares the backend servers.
This commit is contained in:
Markus Mäkelä
2017-06-19 13:02:01 +03:00
parent ae1cdea802
commit aa61c8a30b
1 changed files with 7 additions and 11 deletions
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18
server/modules/routing/readwritesplit/rwsplit_route_stmt.cc
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@ -45,26 +45,22 @@ static SRWBackend get_root_master_bref(ROUTER_CLIENT_SES *rses);
* value in selection criteria. If either reference pointer is NULL then the
* other reference pointer value is returned.
*/
static SRWBackend& check_candidate_bref(SRWBackend& cand,
SRWBackend& new_bref,
select_criteria_t sc)
static SRWBackend compare_backends(SRWBackend a, SRWBackend b, select_criteria_t sc)
{
int (*p)(const void *, const void *);
/** get compare function */
p = criteria_cmpfun[sc];
if (new_bref == NULL)
if (!a)
{
return cand;
return b;
}
else if (cand == NULL || (p((void *)&cand, (void *)&new_bref) > 0))
else if (!b)
{
return new_bref;
}
else
{
return cand;
return a;
}
return p((void *)&a, (void *)&b) > 0 ? b : a;
}
void handle_connection_keepalive(ROUTER_INSTANCE *inst, ROUTER_CLIENT_SES *rses,