liblttng-ctl: use lttng_payload for serialize/create_from_buffer

[lttng-tools.git] / src / common / sessiond-comm / payload.c

diff --git a/src/common/sessiond-comm/payload.c b/src/common/sessiond-comm/payload.c
new file mode 100644 (file)
index 0000000..592964a
--- /dev/null
+++ b/src/common/sessiond-comm/payload.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2020 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#include "payload.h"
+
+LTTNG_HIDDEN
+void lttng_payload_init(struct lttng_payload *payload)
+{
+       assert(payload);
+       lttng_dynamic_buffer_init(&payload->buffer);
+       lttng_dynamic_array_init(&payload->_fds, sizeof(int), NULL);
+}
+
+LTTNG_HIDDEN
+void lttng_payload_reset(struct lttng_payload *payload)
+{
+       if (!payload) {
+               return;
+       }
+
+       lttng_dynamic_buffer_reset(&payload->buffer);
+       lttng_dynamic_array_reset(&payload->_fds);
+}
+
+LTTNG_HIDDEN
+int lttng_payload_push_fd(struct lttng_payload *payload, int fd)
+{
+       int ret;
+
+       if (!payload) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = lttng_dynamic_array_add_element(&payload->_fds, &fd);
+end:
+       return ret;
+}