--- /dev/null
+/*
+ * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#ifndef LTTNG_CONDITION_INTERNAL_H
+#define LTTNG_CONDITION_INTERNAL_H
+
+#include <common/macros.hpp>
+#include <common/payload-view.hpp>
+#include <common/payload.hpp>
+#include <lttng/condition/condition.h>
+#include <lttng/lttng-error.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <urcu/list.h>
+#include <urcu/ref.h>
+
+struct mi_writer;
+struct mi_lttng_error_query_callbacks;
+struct lttng_trigger;
+
+typedef void (*condition_destroy_cb)(struct lttng_condition *condition);
+typedef bool (*condition_validate_cb)(const struct lttng_condition *condition);
+typedef int (*condition_serialize_cb)(
+ const struct lttng_condition *condition,
+ struct lttng_payload *payload);
+typedef bool (*condition_equal_cb)(const struct lttng_condition *a,
+ const struct lttng_condition *b);
+typedef ssize_t (*condition_create_from_payload_cb)(
+ struct lttng_payload_view *view,
+ struct lttng_condition **condition);
+typedef enum lttng_error_code (*condition_mi_serialize_cb)(
+ const struct lttng_condition *condition,
+ struct mi_writer *writer);
+
+struct lttng_condition {
+ /* Reference counting is only exposed to internal users. */
+ struct urcu_ref ref;
+ enum lttng_condition_type type;
+ condition_validate_cb validate;
+ condition_serialize_cb serialize;
+ condition_equal_cb equal;
+ condition_destroy_cb destroy;
+ condition_mi_serialize_cb mi_serialize;
+};
+
+struct lttng_condition_comm {
+ /* enum lttng_condition_type */
+ int8_t condition_type;
+ char payload[];
+};
+
+void lttng_condition_get(struct lttng_condition *condition);
+
+void lttng_condition_put(struct lttng_condition *condition);
+
+void lttng_condition_init(struct lttng_condition *condition,
+ enum lttng_condition_type type);
+
+bool lttng_condition_validate(const struct lttng_condition *condition);
+
+ssize_t lttng_condition_create_from_payload(
+ struct lttng_payload_view *view,
+ struct lttng_condition **condition);
+
+int lttng_condition_serialize(const struct lttng_condition *condition,
+ struct lttng_payload *payload);
+
+bool lttng_condition_is_equal(const struct lttng_condition *a,
+ const struct lttng_condition *b);
+
+enum lttng_error_code lttng_condition_mi_serialize(
+ const struct lttng_trigger *trigger,
+ const struct lttng_condition *condition,
+ struct mi_writer *writer,
+ const struct mi_lttng_error_query_callbacks
+ *error_query_callbacks);
+
+const char *lttng_condition_type_str(enum lttng_condition_type type);
+
+#endif /* LTTNG_CONDITION_INTERNAL_H */