--- /dev/null
+#ifndef BABELTRACE_GRAPH_MESSAGE_ITERATOR_INTERNAL_H
+#define BABELTRACE_GRAPH_MESSAGE_ITERATOR_INTERNAL_H
+
+/*
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
+ * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace2/babeltrace-internal.h>
+#include <babeltrace2/object-internal.h>
+#include <babeltrace2/graph/connection-const.h>
+#include <babeltrace2/graph/message-const.h>
+#include <babeltrace2/graph/message-iterator-const.h>
+#include <babeltrace2/types.h>
+#include <babeltrace2/assert-internal.h>
+#include <stdbool.h>
+
+struct bt_port;
+struct bt_graph;
+
+enum bt_message_iterator_type {
+ BT_MESSAGE_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT,
+ BT_MESSAGE_ITERATOR_TYPE_PORT_OUTPUT,
+};
+
+enum bt_self_component_port_input_message_iterator_state {
+ /* Iterator is not initialized */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_NON_INITIALIZED,
+
+ /* Iterator is active, not at the end yet, and not finalized */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE,
+
+ /*
+ * Iterator is ended, not finalized yet: the "next" method
+ * returns BT_MESSAGE_ITERATOR_STATUS_END.
+ */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED,
+
+ /* Iterator is currently being finalized */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING,
+
+ /* Iterator is finalized */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED,
+
+ /* Iterator is seeking */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING,
+
+ /* Iterator did seek, but returned `BT_MESSAGE_ITERATOR_STATUS_AGAIN` */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN,
+
+ /* Iterator did seek, but returned error status */
+ BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR,
+};
+
+struct bt_message_iterator {
+ struct bt_object base;
+ enum bt_message_iterator_type type;
+ GPtrArray *msgs;
+};
+
+typedef enum bt_self_message_iterator_status
+(*bt_self_component_port_input_message_iterator_next_method)(
+ void *, bt_message_array_const, uint64_t, uint64_t *);
+
+typedef enum bt_self_message_iterator_status
+(*bt_self_component_port_input_message_iterator_seek_ns_from_origin_method)(
+ void *, int64_t);
+
+typedef enum bt_self_message_iterator_status
+(*bt_self_component_port_input_message_iterator_seek_beginning_method)(
+ void *);
+
+typedef bt_bool
+(*bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method)(
+ void *, int64_t);
+
+typedef bt_bool
+(*bt_self_component_port_input_message_iterator_can_seek_beginning_method)(
+ void *);
+
+struct bt_self_component_port_input_message_iterator {
+ struct bt_message_iterator base;
+ struct bt_component *upstream_component; /* Weak */
+ struct bt_port *upstream_port; /* Weak */
+ struct bt_connection *connection; /* Weak */
+ struct bt_graph *graph; /* Weak */
+
+ struct {
+ bt_self_component_port_input_message_iterator_next_method next;
+ bt_self_component_port_input_message_iterator_seek_ns_from_origin_method seek_ns_from_origin;
+ bt_self_component_port_input_message_iterator_seek_beginning_method seek_beginning;
+ bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method can_seek_ns_from_origin;
+ bt_self_component_port_input_message_iterator_can_seek_beginning_method can_seek_beginning;
+ } methods;
+
+ enum bt_self_component_port_input_message_iterator_state state;
+ GQueue *auto_seek_msgs;
+ void *user_data;
+};
+
+struct bt_port_output_message_iterator {
+ struct bt_message_iterator base;
+ struct bt_graph *graph; /* Owned by this */
+ struct bt_component_sink *colander; /* Owned by this */
+
+ /*
+ * Only used temporarily as a bridge between a colander sink and
+ * the user.
+ */
+ uint64_t count;
+};
+
+BT_HIDDEN
+void bt_self_component_port_input_message_iterator_try_finalize(
+ struct bt_self_component_port_input_message_iterator *iterator);
+
+BT_HIDDEN
+void bt_self_component_port_input_message_iterator_set_connection(
+ struct bt_self_component_port_input_message_iterator *iterator,
+ struct bt_connection *connection);
+
+static inline
+const char *bt_message_iterator_status_string(
+ enum bt_message_iterator_status status)
+{
+ switch (status) {
+ case BT_MESSAGE_ITERATOR_STATUS_AGAIN:
+ return "BT_MESSAGE_ITERATOR_STATUS_AGAIN";
+ case BT_MESSAGE_ITERATOR_STATUS_END:
+ return "BT_MESSAGE_ITERATOR_STATUS_END";
+ case BT_MESSAGE_ITERATOR_STATUS_OK:
+ return "BT_MESSAGE_ITERATOR_STATUS_OK";
+ case BT_MESSAGE_ITERATOR_STATUS_ERROR:
+ return "BT_MESSAGE_ITERATOR_STATUS_ERROR";
+ case BT_MESSAGE_ITERATOR_STATUS_NOMEM:
+ return "BT_MESSAGE_ITERATOR_STATUS_NOMEM";
+ default:
+ return "(unknown)";
+ }
+};
+
+static inline
+const char *bt_self_component_port_input_message_iterator_state_string(
+ enum bt_self_component_port_input_message_iterator_state state)
+{
+ switch (state) {
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE:
+ return "BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE";
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED:
+ return "BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED";
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING:
+ return "BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING";
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED:
+ return "BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED";
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING:
+ return "BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING";
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN:
+ return "BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN";
+ case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR:
+ return "BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR";
+ default:
+ return "(unknown)";
+ }
+};
+
+#endif /* BABELTRACE_GRAPH_MESSAGE_ITERATOR_INTERNAL_H */
projects / babeltrace.git / blobdiff