X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fust-field-utils.cpp;h=27d3070d2f453897c1112e4dedb9e173df72937d;hb=0d19be9d7e89fa4ff548592edd6d00a723070ced;hp=a89fade5ec93254c237a73a0d45e991e7a5e947e;hpb=7966af5763c4aaca39df9bbfa9277ff15715c720;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/ust-field-utils.cpp b/src/bin/lttng-sessiond/ust-field-utils.cpp
index a89fade5e..27d3070d2 100644
--- a/src/bin/lttng-sessiond/ust-field-utils.cpp
+++ b/src/bin/lttng-sessiond/ust-field-utils.cpp
@@ -8,7 +8,7 @@
 #include <stdbool.h>
 #include <string.h>
 
-#include "ust-field-utils.h"
+#include "ust-field-utils.hpp"
 
 /*
  * The lttng_ust_ctl_field is made of a combination of C basic types
@@ -338,3 +338,33 @@ int match_lttng_ust_ctl_field(const struct lttng_ust_ctl_field *first,
 no_match:
 	return false;
 }
+
+/*
+ * Compare two arrays of UST fields.
+ * Return true if both arrays have identical field definitions, false otherwise.
+ */
+bool match_lttng_ust_ctl_field_array(const struct lttng_ust_ctl_field *first,
+		size_t nr_first,
+		const struct lttng_ust_ctl_field *second,
+		size_t nr_second)
+{
+	size_t i;
+	const size_t nr_fields = nr_first;
+
+	/* Compare the array lengths. */
+	if (nr_first != nr_second) {
+		goto no_match;
+	}
+
+	/* Compare each field individually. */
+	for (i = 0; i < nr_fields; i++) {
+		if (!match_lttng_ust_ctl_field(&first[i], &second[i])) {
+			goto no_match;
+		}
+	}
+
+	return true;
+
+no_match:
+	return false;
+}