lib: rename bt_plugin_create_all_*() -> bt_plugin_find_all_*()
[babeltrace.git] / include / babeltrace / graph / notification-iterator-internal.h
index bf795a3a233c4662e61fa90346874eb6c8e61201..28a322f1162f35c172d4b56dffe233ffe29f1119 100644 (file)
@@ -1,11 +1,9 @@
-#ifndef BABELTRACE_COMPONENT_NOTIFICATION_ITERATOR_INTERNAL_H
-#define BABELTRACE_COMPONENT_NOTIFICATION_ITERATOR_INTERNAL_H
+#ifndef BABELTRACE_GRAPH_NOTIFICATION_ITERATOR_INTERNAL_H
+#define BABELTRACE_GRAPH_NOTIFICATION_ITERATOR_INTERNAL_H
 
 /*
- * BabelTrace - Notification Iterator Internal
- *
+ * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
  * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- * Copyright 2017 Philippe Proulx <pproulx@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
 
 #include <babeltrace/babeltrace-internal.h>
 #include <babeltrace/object-internal.h>
-#include <babeltrace/ref-internal.h>
-#include <babeltrace/graph/connection.h>
-#include <babeltrace/graph/notification.h>
+#include <babeltrace/graph/connection-const.h>
+#include <babeltrace/graph/notification-const.h>
 #include <babeltrace/graph/notification-iterator.h>
-#include <babeltrace/graph/private-connection-private-notification-iterator.h>
 #include <babeltrace/types.h>
+#include <babeltrace/assert-internal.h>
 #include <stdbool.h>
-#include <assert.h>
 
 struct bt_port;
 struct bt_graph;
 
 enum bt_notification_iterator_type {
-       BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION,
-       BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT,
-};
-
-enum bt_private_connection_notification_iterator_notif_type {
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_EVENT =                  (1U << 0),
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_INACTIVITY =             (1U << 1),
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_BEGIN =           (1U << 2),
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_STREAM_END =             (1U << 3),
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_BEGIN =           (1U << 4),
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_PACKET_END =             (1U << 5),
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_EVENTS =       (1U << 6),
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_NOTIF_TYPE_DISCARDED_PACKETS =      (1U << 7),
+       BT_NOTIFICATION_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT,
+       BT_NOTIFICATION_ITERATOR_TYPE_PORT_OUTPUT,
 };
 
-enum bt_private_connection_notification_iterator_state {
+enum bt_self_component_port_input_notification_iterator_state {
        /* Iterator is not initialized. */
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_NON_INITIALIZED,
+       BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_NON_INITIALIZED,
 
        /* Iterator is active, not at the end yet, and not finalized. */
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ACTIVE,
+       BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ACTIVE,
 
        /*
         * Iterator is ended, not finalized yet: the "next" method
         * returns BT_NOTIFICATION_ITERATOR_STATUS_END.
         */
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ENDED,
+       BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ENDED,
 
        /*
         * Iterator is finalized, but not at the end yet. This means
@@ -75,123 +60,71 @@ enum bt_private_connection_notification_iterator_state {
         * before returning the BT_NOTIFICATION_ITERATOR_STATUS_CANCELED
         * status.
         */
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED,
+       BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED,
 
        /*
         * Iterator is finalized and ended: the "next" method always
         * returns BT_NOTIFICATION_ITERATOR_STATUS_CANCELED.
         */
-       BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED,
+       BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED,
 };
 
 struct bt_notification_iterator {
        struct bt_object base;
        enum bt_notification_iterator_type type;
-       struct bt_notification *current_notification; /* owned by this */
+       GPtrArray *notifs;
 };
 
-struct bt_notification_iterator_private_connection {
+struct bt_self_component_port_input_notification_iterator {
        struct bt_notification_iterator base;
        struct bt_component *upstream_component; /* Weak */
        struct bt_port *upstream_port; /* Weak */
        struct bt_connection *connection; /* Weak */
-       GQueue *queue; /* struct bt_notification * (owned by this) */
+       struct bt_graph *graph; /* Weak */
 
        /*
         * This hash table keeps the state of a stream as viewed by
-        * this notification iterator. This is used to:
+        * this notification iterator. This is used to, in developer
+        * mode:
         *
         * * Automatically enqueue "stream begin", "packet begin",
         *   "packet end", and "stream end" notifications depending
         *   on the stream's state and on the next notification returned
         *   by the upstream component.
         *
-        * * Make sure that, once the notification iterator has seen
-        *   a "stream end" notification for a given stream, that no
-        *   other notifications which refer to this stream can be
-        *   delivered by this iterator.
+        * * Make sure that, once the notification iterator has seen a
+        *   "stream end" notification for a given stream, no other
+        *   notifications which refer to this stream can be delivered
+        *   by this iterator.
         *
-        * The key (struct bt_ctf_stream *) is not owned by this. The
+        * The key (struct bt_stream *) is not owned by this. The
         * value is an allocated state structure.
         */
        GHashTable *stream_states;
 
-       /*
-        * This is an array of actions which can be rolled back. It's
-        * similar to the memento pattern, but it's not exactly that. It
-        * is allocated once and reset for each notification to process.
-        * More details near the implementation.
-        */
-       GArray *actions;
-
-       /*
-        * This is a mask of notifications to which the user of this
-        * iterator is subscribed
-        * (see enum bt_private_connection_notification_iterator_notif_type
-        * above).
-        */
-       uint32_t subscription_mask;
-
-       enum bt_private_connection_notification_iterator_state state;
+       enum bt_self_component_port_input_notification_iterator_state state;
        void *user_data;
 };
 
-struct bt_notification_iterator_output_port {
+struct bt_port_output_notification_iterator {
        struct bt_notification_iterator base;
        struct bt_graph *graph; /* Owned by this */
-       struct bt_component *colander; /* Owned by this */
-       struct bt_port *output_port; /* Owned by this */
-};
-
-static inline
-struct bt_notification *bt_notification_iterator_borrow_current_notification(
-               struct bt_notification_iterator *iterator)
-{
-       assert(iterator);
-       return iterator->current_notification;
-}
+       struct bt_component_sink *colander; /* Owned by this */
 
-static inline
-void bt_notification_iterator_replace_current_notification(
-               struct bt_notification_iterator *iterator,
-               struct bt_notification *notification)
-{
-       assert(iterator);
-       bt_put(iterator->current_notification);
-       iterator->current_notification = bt_get(notification);
-}
-
-static inline
-struct bt_notification_iterator_private_connection *
-bt_private_connection_notification_iterator_borrow_from_private(
-               struct bt_private_connection_private_notification_iterator *private_notification_iterator)
-{
-       return (void *) private_notification_iterator;
-}
-
-static inline
-struct bt_private_connection_private_notification_iterator *
-bt_private_connection_private_notification_iterator_from_notification_iterator(
-               struct bt_notification_iterator_private_connection *iterator)
-{
-       return (void *) iterator;
-}
-
-BT_HIDDEN
-enum bt_connection_status bt_private_connection_notification_iterator_create(
-               struct bt_component *upstream_comp,
-               struct bt_port *upstream_port,
-               const enum bt_notification_type *notification_types,
-               struct bt_connection *connection,
-               struct bt_notification_iterator_private_connection **iterator);
+       /*
+        * Only used temporarily as a bridge between a colander sink and
+        * the user.
+        */
+       uint64_t count;
+};
 
 BT_HIDDEN
-void bt_private_connection_notification_iterator_finalize(
-               struct bt_notification_iterator_private_connection *iterator);
+void bt_self_component_port_input_notification_iterator_finalize(
+               struct bt_self_component_port_input_notification_iterator *iterator);
 
 BT_HIDDEN
-void bt_private_connection_notification_iterator_set_connection(
-               struct bt_notification_iterator_private_connection *iterator,
+void bt_self_component_port_input_notification_iterator_set_connection(
+               struct bt_self_component_port_input_notification_iterator *iterator,
                struct bt_connection *connection);
 
 static inline
@@ -207,35 +140,31 @@ const char *bt_notification_iterator_status_string(
                return "BT_NOTIFICATION_ITERATOR_STATUS_END";
        case BT_NOTIFICATION_ITERATOR_STATUS_OK:
                return "BT_NOTIFICATION_ITERATOR_STATUS_OK";
-       case BT_NOTIFICATION_ITERATOR_STATUS_INVALID:
-               return "BT_NOTIFICATION_ITERATOR_STATUS_INVALID";
        case BT_NOTIFICATION_ITERATOR_STATUS_ERROR:
                return "BT_NOTIFICATION_ITERATOR_STATUS_ERROR";
        case BT_NOTIFICATION_ITERATOR_STATUS_NOMEM:
                return "BT_NOTIFICATION_ITERATOR_STATUS_NOMEM";
-       case BT_NOTIFICATION_ITERATOR_STATUS_UNSUPPORTED:
-               return "BT_NOTIFICATION_ITERATOR_STATUS_UNSUPPORTED";
        default:
                return "(unknown)";
        }
 };
 
 static inline
-const char *bt_private_connection_notification_iterator_state_string(
-               enum bt_private_connection_notification_iterator_state state)
+const char *bt_self_component_port_input_notification_iterator_state_string(
+               enum bt_self_component_port_input_notification_iterator_state state)
 {
        switch (state) {
-       case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ACTIVE:
-               return "BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ACTIVE";
-       case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ENDED:
-               return "BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_ENDED";
-       case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED:
-               return "BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED";
-       case BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED:
-               return "BT_PRIVATE_CONNECTION_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED";
+       case BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ACTIVE:
+               return "BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ACTIVE";
+       case BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ENDED:
+               return "BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ENDED";
+       case BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED:
+               return "BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED";
+       case BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED:
+               return "BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED";
        default:
                return "(unknown)";
        }
 };
 
-#endif /* BABELTRACE_COMPONENT_NOTIFICATION_ITERATOR_INTERNAL_H */
+#endif /* BABELTRACE_GRAPH_NOTIFICATION_ITERATOR_INTERNAL_H */
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