X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Flib%2Flttng-ctl%2Flttng-ctl.c;h=d8d5db6c7ff6838d087309c421c83cb919e0758c;hb=27babd3a0a164f71d4dc02884ef20099ddfc6755;hp=c9693f711f5140f26f63c2b34fa99bb578ca321c;hpb=da3c9ec137aaec74635ca1f5584040c20b1d3d7b;p=lttng-tools.git

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index c9693f711..d8d5db6c7 100644
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -1471,7 +1471,7 @@ int _lttng_create_session_ext(const char *name, const char *url,
 	struct lttcomm_session_msg lsm;
 	struct lttng_uri *uris = NULL;
 
-	if (name == NULL || datetime == NULL || url == NULL) {
+	if (name == NULL || datetime == NULL) {
 		return -LTTNG_ERR_INVALID;
 	}
 
@@ -1547,6 +1547,41 @@ int lttng_data_pending(const char *session_name)
 	return ret;
 }
 
+/*
+ * Create a session exclusively used for snapshot.
+ *
+ * Returns LTTNG_OK on success or a negative error code.
+ */
+int lttng_create_session_snapshot(const char *name, const char *snapshot_url)
+{
+	int ret;
+	ssize_t size;
+	struct lttcomm_session_msg lsm;
+	struct lttng_uri *uris = NULL;
+
+	if (name == NULL) {
+		return -LTTNG_ERR_INVALID;
+	}
+
+	memset(&lsm, 0, sizeof(lsm));
+
+	lsm.cmd_type = LTTNG_CREATE_SESSION_SNAPSHOT;
+	lttng_ctl_copy_string(lsm.session.name, name, sizeof(lsm.session.name));
+
+	size = uri_parse_str_urls(snapshot_url, NULL, &uris);
+	if (size < 0) {
+		return -LTTNG_ERR_INVALID;
+	}
+
+	lsm.u.uri.size = size;
+
+	ret = lttng_ctl_ask_sessiond_varlen(&lsm, uris,
+			sizeof(struct lttng_uri) * size, NULL);
+
+	free(uris);
+	return ret;
+}
+
 /*
  * lib constructor
  */