tests: test ust snapshot with discard buffers

[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 2ff57cd1465c6071eb0d89705b061ef3dafac05f..d676198208fe638c2efb8f33b62f023ee39958ee 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>
 
@@ -52,8 +52,10 @@ void ht_cleanup_push(struct lttng_ht *ht)
        ssize_t ret;
        int fd = ht_cleanup_pipe[1];
 
-       if (fd < 0)
+       if (!ht) {
                return;
+       }
+       assert(fd >= 0);
        ret = lttng_write(fd, &ht, sizeof(ht));
        if (ret < sizeof(ht)) {
                PERROR("write ht cleanup pipe %d", fd);
@@ -68,3 +70,27 @@ 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;
+}