Add client notification API

[lttng-tools.git] / include / lttng / condition / evaluation-internal.h

diff --git a/include/lttng/condition/evaluation-internal.h b/include/lttng/condition/evaluation-internal.h
new file mode 100644 (file)
index 0000000..414760e
--- /dev/null
+++ b/include/lttng/condition/evaluation-internal.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License, version 2.1 only,
+ * as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LTTNG_EVALUATION_INTERNAL_H
+#define LTTNG_EVALUATION_INTERNAL_H
+
+#include <lttng/condition/evaluation.h>
+#include <common/macros.h>
+#include <common/buffer-view.h>
+#include <stdbool.h>
+
+typedef void (*evaluation_destroy_cb)(struct lttng_evaluation *evaluation);
+typedef ssize_t (*evaluation_serialize_cb)(struct lttng_evaluation *evaluation,
+               char *buf);
+
+struct lttng_evaluation_comm {
+       /* enum lttng_condition_type type */
+       int8_t type;
+       char payload[];
+} LTTNG_PACKED;
+
+struct lttng_evaluation {
+       enum lttng_condition_type type;
+       evaluation_serialize_cb serialize;
+       evaluation_destroy_cb destroy;
+};
+
+LTTNG_HIDDEN
+ssize_t lttng_evaluation_create_from_buffer(const struct lttng_buffer_view *view,
+               struct lttng_evaluation **evaluation);
+
+LTTNG_HIDDEN
+ssize_t lttng_evaluation_serialize(struct lttng_evaluation *evaluation,
+               char *buf);
+
+#endif /* LTTNG_EVALUATION_INTERNAL_H */