Store the version of the tracer in the UID registry

[lttng-tools.git] / src / bin / lttng-sessiond / utils.c

diff --git a/src/bin/lttng-sessiond/utils.c b/src/bin/lttng-sessiond/utils.c
index c9c51ede5abcb2ada1ffa7253b946e1ca646467c..f77a21ddb153a5ebdd88815af3e9850e37736151 100644 (file)
--- a/src/bin/lttng-sessiond/utils.c
+++ b/src/bin/lttng-sessiond/utils.c
@@ -16,7 +16,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <stdlib.h>
 #include <unistd.h>
 
@@ -71,3 +71,27 @@ void ht_cleanup_push(struct lttng_ht *ht)
 error:
        assert(!ret);
 }
+
+int loglevels_match(int a_loglevel_type, int a_loglevel_value,
+       int b_loglevel_type, int b_loglevel_value, int loglevel_all_type)
+{
+       int match = 1;
+
+       if (a_loglevel_type == b_loglevel_type) {
+               /* Same loglevel type. */
+               if (b_loglevel_type != loglevel_all_type) {
+                       /*
+                        * Loglevel value must also match since the loglevel
+                        * type is not all.
+                        */
+                       if (a_loglevel_value != b_loglevel_value) {
+                               match = 0;
+                       }
+               }
+       } else {
+               /* Loglevel type is different: no match. */
+               match = 0;
+       }
+
+       return match;
+}