Add a check against excluders

[lttng-ust.git] / liblttng-ust / lttng-events.c

diff --git a/liblttng-ust/lttng-events.c b/liblttng-ust/lttng-events.c
index 915cffb744613c2973e599bf8a617673ad732b97..61021f3a696334558654b0990b91415c6aec1670 100644 (file)
--- a/liblttng-ust/lttng-events.c
+++ b/liblttng-ust/lttng-events.c
@@ -491,6 +491,31 @@ static
 int lttng_desc_match_enabler(const struct lttng_event_desc *desc,
                struct lttng_enabler *enabler)
 {
+       struct lttng_ust_excluder_node *excluder;
+
+       /* If event matches with an excluder, return 'does not match' */
+       cds_list_for_each_entry(excluder, &enabler->excluder_head, node) {
+               int count;
+
+               for (count = 0; count < excluder->excluder.count; count++) {
+                       int found, len;
+                       char *excluder_name;
+
+                       excluder_name = (char *) (excluder->excluder.names)
+                                       + count * LTTNG_UST_SYM_NAME_LEN;
+                       len = strnlen(excluder_name, LTTNG_UST_SYM_NAME_LEN);
+                       if (len > 0 && excluder_name[len - 1] == '*') {
+                               found = !strncmp(desc->name, excluder_name,
+                                               len - 1);
+                       } else {
+                               found = !strncmp(desc->name, excluder_name,
+                                               LTTNG_UST_SYM_NAME_LEN - 1);
+                       }
+                       if (found) {
+                               return 0;
+                       }
+               }
+       }
        switch (enabler->type) {
        case LTTNG_ENABLER_WILDCARD:
                return lttng_desc_match_wildcard_enabler(desc, enabler);