X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Fust-core.c;h=60751dc32a9aa56058e1452f3e9ddec4a395981b;hb=c785c634a51956094130218c2bffeff32756cb69;hp=60cdbfa91a2c876f5d5ae05db7a6ceae2a065df6;hpb=aaf93c608bb7591f0a5411c221a3ad3fbd8efdfd;p=lttng-ust.git

diff --git a/liblttng-ust/ust-core.c b/liblttng-ust/ust-core.c
index 60cdbfa9..60751dc3 100644
--- a/liblttng-ust/ust-core.c
+++ b/liblttng-ust/ust-core.c
@@ -21,6 +21,7 @@
 #include <stdlib.h>
 #include <lttng/ust-events.h>
 #include <usterr-signal-safe.h>
+#include "jhash.h"
 
 static CDS_LIST_HEAD(lttng_transport_list);
 
@@ -56,3 +57,26 @@ void lttng_transport_unregister(struct lttng_transport *transport)
 {
 	cds_list_del(&transport->node);
 }
+
+/*
+ * Needed by comm layer.
+ */
+struct lttng_enum *lttng_ust_enum_get(struct lttng_session *session,
+		const char *enum_name)
+{
+	struct lttng_enum *_enum;
+	struct cds_hlist_head *head;
+	struct cds_hlist_node *node;
+	size_t name_len = strlen(enum_name);
+	uint32_t hash;
+
+	hash = jhash(enum_name, name_len, 0);
+	head = &session->enums_ht.table[hash & (LTTNG_UST_ENUM_HT_SIZE - 1)];
+	cds_hlist_for_each_entry(_enum, node, head, hlist) {
+		assert(_enum->desc);
+		if (!strncmp(_enum->desc->name, enum_name,
+				LTTNG_UST_SYM_NAME_LEN - 1))
+			return _enum;
+	}
+	return NULL;
+}