lib: rename "notification" -> "message"
[babeltrace.git] / plugins / utils / trimmer / iterator.c
index 2d487f19ef0bc292f3f18a88fb01abcf57a29e59..0e01511928bd824767f862c0212c86be910cfe20 100644 (file)
  * SOFTWARE.
  */
 
+#define BT_LOG_TAG "PLUGIN-UTILS-TRIMMER-FLT-ITER"
+#include "logging.h"
+
+#include <babeltrace/compat/time-internal.h>
+#include <babeltrace/compat/utc-internal.h>
+#include <babeltrace/babeltrace.h>
+#include <babeltrace/assert-internal.h>
+#include <plugins-common.h>
+
 #include "trimmer.h"
 #include "iterator.h"
-#include <babeltrace/graph/notification-iterator.h>
-#include <babeltrace/graph/private-notification-iterator.h>
-#include <babeltrace/graph/notification.h>
-#include <babeltrace/graph/notification-event.h>
-#include <babeltrace/graph/notification-stream.h>
-#include <babeltrace/graph/notification-packet.h>
-#include <babeltrace/graph/component-filter.h>
-#include <babeltrace/graph/private-component-filter.h>
-#include <babeltrace/graph/private-port.h>
-#include <babeltrace/graph/private-connection.h>
-#include <babeltrace/graph/private-component.h>
-#include <babeltrace/ctf-ir/event.h>
-#include <babeltrace/ctf-ir/stream.h>
-#include <babeltrace/ctf-ir/stream-class.h>
-#include <babeltrace/ctf-ir/clock-class.h>
-#include <babeltrace/ctf-ir/packet.h>
-#include <babeltrace/ctf-ir/trace.h>
-#include <babeltrace/ctf-ir/fields.h>
-#include <assert.h>
-#include <plugins-common.h>
+#include "copy.h"
+
+static
+gboolean close_packets(gpointer key, gpointer value, gpointer user_data)
+{
+       const bt_packet *writer_packet = value;
+
+       bt_packet_put_ref(writer_packet);
+       return TRUE;
+}
 
 BT_HIDDEN
-void trimmer_iterator_finalize(struct bt_private_notification_iterator *it)
+void trimmer_iterator_finalize(bt_self_message_iterator *it)
 {
-       struct trimmer_iterator *it_data;
+       struct trimmer_iterator *trim_it;
 
-       it_data = bt_private_notification_iterator_get_user_data(it);
-       assert(it_data);
+       trim_it = bt_self_message_iterator_get_user_data(it);
+       BT_ASSERT(trim_it);
 
-       bt_put(it_data->input_iterator);
-       g_free(it_data);
+       bt_object_put_ref(trim_it->input_iterator);
+       g_hash_table_foreach_remove(trim_it->packet_map,
+                       close_packets, NULL);
+       g_hash_table_destroy(trim_it->packet_map);
+       g_free(trim_it);
 }
 
 BT_HIDDEN
-enum bt_notification_iterator_status trimmer_iterator_init(
-               struct bt_private_notification_iterator *iterator,
+enum bt_message_iterator_status trimmer_iterator_init(
+               bt_self_message_iterator *iterator,
                struct bt_private_port *port)
 {
-       enum bt_notification_iterator_status ret =
-               BT_NOTIFICATION_ITERATOR_STATUS_OK;
-       enum bt_notification_iterator_status it_ret;
+       enum bt_message_iterator_status ret =
+               BT_MESSAGE_ITERATOR_STATUS_OK;
+       enum bt_message_iterator_status it_ret;
+       enum bt_connection_status conn_status;
        struct bt_private_port *input_port = NULL;
        struct bt_private_connection *connection = NULL;
-       struct bt_private_component *component =
-               bt_private_notification_iterator_get_private_component(iterator);
+       bt_self_component *component =
+               bt_self_message_iterator_get_private_component(iterator);
        struct trimmer_iterator *it_data = g_new0(struct trimmer_iterator, 1);
 
        if (!it_data) {
-               ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM;
+               ret = BT_MESSAGE_ITERATOR_STATUS_NOMEM;
                goto end;
        }
 
        /* Create a new iterator on the upstream component. */
-       input_port = bt_private_component_filter_get_default_input_private_port(
-               component);
-       assert(input_port);
-       connection = bt_private_port_get_private_connection(input_port);
-       assert(connection);
-
-       it_data->input_iterator =
-               bt_private_connection_create_notification_iterator(connection);
-       if (!it_data->input_iterator) {
-               ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM;
+       input_port = bt_self_component_filter_get_input_port_by_name(
+               component, "in");
+       BT_ASSERT(input_port);
+       connection = bt_private_port_get_connection(input_port);
+       BT_ASSERT(connection);
+
+       conn_status = bt_private_connection_create_message_iterator(connection,
+                       &it_data->input_iterator);
+       if (conn_status != BT_CONNECTION_STATUS_OK) {
+               ret = BT_MESSAGE_ITERATOR_STATUS_ERROR;
                goto end;
        }
 
-       it_ret = bt_private_notification_iterator_set_user_data(iterator,
+       it_data->err = stderr;
+       it_data->packet_map = g_hash_table_new_full(g_direct_hash,
+                       g_direct_equal, NULL, NULL);
+
+       it_ret = bt_self_message_iterator_set_user_data(iterator,
                it_data);
        if (it_ret) {
                goto end;
        }
 end:
-       bt_put(component);
-       bt_put(connection);
-       bt_put(input_port);
+       bt_object_put_ref(component);
+       bt_object_put_ref(connection);
+       bt_object_put_ref(input_port);
        return ret;
 }
 
@@ -124,31 +131,31 @@ int update_lazy_bound(struct trimmer_bound *bound, const char *name,
 
        if (bound->lazy_values.gmt) {
                /* Get day, month, year. */
-               if (!gmtime_r(&timeval, &tm)) {
-                       printf_error("Failure in gmtime_r()");
+               if (!bt_gmtime_r(&timeval, &tm)) {
+                       BT_LOGE_STR("Failure in bt_gmtime_r().");
                        goto error;
                }
                tm.tm_sec = bound->lazy_values.ss;
                tm.tm_min = bound->lazy_values.mm;
-               tm.tm_hour = bound->lazy_values.hh;
-               timeval = timegm(&tm);
+               tm.tm_hour = bound->lazy_value.hh;
+               timeval = bt_timegm(&tm);
                if (timeval < 0) {
-                       printf_error("Failure in timegm(), incorrectly formatted %s timestamp",
+                       BT_LOGE("Failure in bt_timegm(), incorrectly formatted %s timestamp",
                                        name);
                        goto error;
                }
        } else {
                /* Get day, month, year. */
-               if (!localtime_r(&timeval, &tm)) {
-                       printf_error("Failure in localtime_r()");
+               if (!bt_localtime_r(&timeval, &tm)) {
+                       BT_LOGE_STR("Failure in bt_localtime_r().");
                        goto error;
                }
                tm.tm_sec = bound->lazy_values.ss;
                tm.tm_min = bound->lazy_values.mm;
-               tm.tm_hour = bound->lazy_values.hh;
+               tm.tm_hour = bound->lazy_value.hh;
                timeval = mktime(&tm);
                if (timeval < 0) {
-                       printf_error("Failure in mktime(), incorrectly formatted %s timestamp",
+                       BT_LOGE("Failure in mktime(), incorrectly formatted %s timestamp",
                                name);
                        goto error;
                }
@@ -167,69 +174,73 @@ error:
 }
 
 static
-enum bt_notification_iterator_status
-evaluate_event_notification(struct bt_notification *notification,
+const bt_message *evaluate_event_message(
+               const bt_message *message,
+               struct trimmer_iterator *trim_it,
                struct trimmer_bound *begin, struct trimmer_bound *end,
-               bool *_event_in_range)
+               bool *_event_in_range, bool *finished)
 {
        int64_t ts;
        int clock_ret;
-       struct bt_ctf_event *event = NULL;
+       const bt_event *event = NULL, *writer_event;
        bool in_range = true;
-       struct bt_ctf_clock_class *clock_class = NULL;
-       struct bt_ctf_trace *trace = NULL;
-       struct bt_ctf_stream *stream = NULL;
-       struct bt_ctf_stream_class *stream_class = NULL;
-       struct bt_ctf_clock_value *clock_value = NULL;
-       enum bt_notification_iterator_status ret =
-                       BT_NOTIFICATION_ITERATOR_STATUS_OK;
+       const bt_clock_class *clock_class = NULL;
+       const bt_trace *trace = NULL;
+       const bt_stream *stream = NULL;
+       const bt_stream_class *stream_class = NULL;
+       bt_clock_value *clock_value = NULL;
        bool lazy_update = false;
+       const bt_message *new_message = NULL;
+       bt_clock_class_priority_map *cc_prio_map;
 
-       event = bt_notification_event_get_event(notification);
-       assert(event);
+       event = bt_message_event_get_event(message);
+       BT_ASSERT(event);
+       cc_prio_map = bt_message_event_get_clock_class_priority_map(
+                       message);
+       BT_ASSERT(cc_prio_map);
+       writer_event = trimmer_output_event(trim_it, event);
+       BT_ASSERT(writer_event);
+       new_message = bt_message_event_create(writer_event, cc_prio_map);
+       BT_ASSERT(new_message);
+       bt_object_put_ref(cc_prio_map);
 
-       stream = bt_ctf_event_get_stream(event);
-       assert(stream);
+       stream = bt_event_get_stream(event);
+       BT_ASSERT(stream);
 
-       stream_class = bt_ctf_stream_get_class(stream);
-       assert(stream_class);
+       stream_class = bt_stream_get_class(stream);
+       BT_ASSERT(stream_class);
 
-       trace = bt_ctf_stream_class_get_trace(stream_class);
-       assert(trace);
+       trace = bt_stream_class_get_trace(stream_class);
+       BT_ASSERT(trace);
 
        /* FIXME multi-clock? */
-       clock_class = bt_ctf_trace_get_clock_class(trace, 0);
+       clock_class = bt_trace_get_clock_class_by_index(trace, 0);
        if (!clock_class) {
                goto end;
        }
 
-       clock_value = bt_ctf_event_get_clock_value(event, clock_class);
+       clock_value = bt_event_get_clock_value(event, clock_class);
        if (!clock_value) {
-               printf_error("Failed to retrieve clock value");
-               ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
-               goto end;
+               BT_LOGE_STR("Failed to retrieve clock value.");
+               goto error;
        }
 
-       clock_ret = bt_ctf_clock_value_get_value_ns_from_epoch(
+       clock_ret = bt_clock_value_get_value_ns_from_epoch(
                        clock_value, &ts);
        if (clock_ret) {
-               printf_error("Failed to retrieve clock value timestamp");
-               ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
-               goto end;
+               BT_LOGE_STR("Failed to retrieve clock value timestamp.");
+               goto error;
        }
        if (update_lazy_bound(begin, "begin", ts, &lazy_update)) {
-               ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
                goto end;
        }
        if (update_lazy_bound(end, "end", ts, &lazy_update)) {
-               ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
                goto end;
        }
        if (lazy_update && begin->set && end->set) {
                if (begin->value > end->value) {
-                       printf_error("Unexpected: time range begin value is above end value");
-                       ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
-                       goto end;
+                       BT_LOGE_STR("Unexpected: time range begin value is above end value.");
+                       goto error;
                }
        }
        if (begin->set && ts < begin->value) {
@@ -237,114 +248,204 @@ evaluate_event_notification(struct bt_notification *notification,
        }
        if (end->set && ts > end->value) {
                in_range = false;
+               *finished = true;
        }
+
+       goto end;
+
+error:
+       BT_MESSAGE_PUT_REF_AND_RESET(new_message);
 end:
-       bt_put(event);
-       bt_put(clock_class);
-       bt_put(trace);
-       bt_put(stream);
-       bt_put(stream_class);
-       bt_put(clock_value);
+       bt_object_put_ref(event);
+       bt_object_put_ref(writer_event);
+       bt_clock_class_put_ref(clock_class);
+       bt_trace_put_ref(trace);
+       bt_stream_put_ref(stream);
+       bt_stream_class_put_ref(stream_class);
+       bt_object_put_ref(clock_value);
        *_event_in_range = in_range;
-       return ret;
+       return new_message;
 }
 
 static
-int ns_from_integer_field(struct bt_ctf_field *integer, int64_t *ns)
+int ns_from_integer_field(const bt_field *integer, int64_t *ns)
 {
        int ret = 0;
        int is_signed;
        uint64_t raw_clock_value;
-       struct bt_ctf_field_type *integer_type = NULL;
-       struct bt_ctf_clock_class *clock_class = NULL;
-       struct bt_ctf_clock_value *clock_value = NULL;
-
-       integer_type = bt_ctf_field_get_type(integer);
-       assert(integer_type);
-       clock_class = bt_ctf_field_type_integer_get_mapped_clock_class(
-               integer_type);
+       const bt_field_class *integer_class = NULL;
+       const bt_clock_class *clock_class = NULL;
+       bt_clock_value *clock_value = NULL;
+
+       integer_class = bt_field_get_class(integer);
+       BT_ASSERT(integer_class);
+       clock_class = bt_field_class_integer_get_mapped_clock_class(
+               integer_class);
        if (!clock_class) {
                ret = -1;
                goto end;
        }
 
-       is_signed = bt_ctf_field_type_integer_get_signed(integer_type);
+       is_signed = bt_field_class_integer_is_signed(integer_class);
        if (!is_signed) {
-               ret = bt_ctf_field_unsigned_integer_get_value(integer,
+               ret = bt_field_unsigned_integer_get_value(integer,
                                &raw_clock_value);
                if (ret) {
                        goto end;
                }
        } else {
                /* Signed clock values are unsupported. */
+               ret = -1;
                goto end;
        }
 
-       clock_value = bt_ctf_clock_value_create(clock_class, raw_clock_value);
+       clock_value = bt_clock_value_create(clock_class, raw_clock_value);
         if (!clock_value) {
                goto end;
        }
 
-       ret = bt_ctf_clock_value_get_value_ns_from_epoch(clock_value, ns);
+       ret = bt_clock_value_get_value_ns_from_epoch(clock_value, ns);
 end:
-       bt_put(integer_type);
-       bt_put(clock_class);
-       bt_put(clock_value);
+       bt_field_class_put_ref(integer_class);
+       bt_clock_class_put_ref(clock_class);
+       bt_object_put_ref(clock_value);
        return ret;
 }
 
+static uint64_t ns_from_value(uint64_t frequency, uint64_t value)
+{
+       uint64_t ns;
+
+       if (frequency == NSEC_PER_SEC) {
+               ns = value;
+       } else {
+               ns = (uint64_t) ((1e9 * (double) value) / (double) frequency);
+       }
+
+       return ns;
+}
+
+/*
+ * timestamp minus the offset.
+ */
+static
+int64_t get_raw_timestamp(const bt_packet *writer_packet,
+               int64_t timestamp)
+{
+       const bt_clock_class *writer_clock_class;
+       int64_t sec_offset, cycles_offset, ns;
+       const bt_trace *writer_trace;
+       const bt_stream *writer_stream;
+       const bt_stream_class *writer_stream_class;
+       int ret;
+       uint64_t freq;
+
+       writer_stream = bt_packet_get_stream(writer_packet);
+       BT_ASSERT(writer_stream);
+
+       writer_stream_class = bt_stream_get_class(writer_stream);
+       BT_ASSERT(writer_stream_class);
+
+       writer_trace = bt_stream_class_get_trace(writer_stream_class);
+       BT_ASSERT(writer_trace);
+
+       /* FIXME multi-clock? */
+       writer_clock_class = bt_trace_get_clock_class_by_index(
+               writer_trace, 0);
+       BT_ASSERT(writer_clock_class);
+
+       ret = bt_clock_class_get_offset_s(writer_clock_class, &sec_offset);
+       BT_ASSERT(!ret);
+       ns = sec_offset * NSEC_PER_SEC;
+
+       freq = bt_clock_class_get_frequency(writer_clock_class);
+       BT_ASSERT(freq != -1ULL);
+
+       ret = bt_clock_class_get_offset_cycles(writer_clock_class, &cycles_offset);
+       BT_ASSERT(!ret);
+
+       ns += ns_from_value(freq, cycles_offset);
+
+       bt_clock_class_put_ref(writer_clock_class);
+       bt_trace_put_ref(writer_trace);
+       bt_stream_class_put_ref(writer_stream_class);
+       bt_stream_put_ref(writer_stream);
+
+       return timestamp - ns;
+}
+
 static
-enum bt_notification_iterator_status evaluate_packet_notification(
-               struct bt_notification *notification,
+const bt_message *evaluate_packet_message(
+               const bt_message *message,
+               struct trimmer_iterator *trim_it,
                struct trimmer_bound *begin, struct trimmer_bound *end,
-               bool *_packet_in_range)
+               bool *_packet_in_range, bool *finished)
 {
-        enum bt_notification_iterator_status ret =
-                       BT_NOTIFICATION_ITERATOR_STATUS_OK;
        int64_t begin_ns, pkt_begin_ns, end_ns, pkt_end_ns;
        bool in_range = true;
-       struct bt_ctf_packet *packet = NULL;
-       struct bt_ctf_field *packet_context = NULL,
+       const bt_packet *packet = NULL, *writer_packet = NULL;
+       const bt_field *packet_context = NULL,
                        *timestamp_begin = NULL,
                        *timestamp_end = NULL;
+       const bt_message *new_message = NULL;
+       enum bt_component_status ret;
+       bool lazy_update = false;
 
-        switch (bt_notification_get_type(notification)) {
-       case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
-               packet = bt_notification_packet_begin_get_packet(notification);
+        switch (bt_message_get_type(message)) {
+       case BT_MESSAGE_TYPE_PACKET_BEGINNING:
+               packet = bt_message_packet_beginning_get_packet(message);
+               BT_ASSERT(packet);
+               writer_packet = trimmer_new_packet(trim_it, packet);
+               BT_ASSERT(writer_packet);
                break;
-       case BT_NOTIFICATION_TYPE_PACKET_END:
-               packet = bt_notification_packet_end_get_packet(notification);
+       case BT_MESSAGE_TYPE_PACKET_END:
+               packet = bt_message_packet_end_get_packet(message);
+               BT_ASSERT(packet);
+               writer_packet = trimmer_close_packet(trim_it, packet);
+               BT_ASSERT(writer_packet);
                break;
        default:
-               break;
+               goto end;
        }
-       assert(packet);
 
-       packet_context = bt_ctf_packet_get_context(packet);
+       packet_context = bt_packet_get_context(writer_packet);
        if (!packet_context) {
-               goto end;
+               goto end_no_msg;
        }
 
-       if (!bt_ctf_field_is_structure(packet_context)) {
-               goto end;
+       if (!bt_field_is_structure(packet_context)) {
+               goto end_no_msg;
        }
 
-       timestamp_begin = bt_ctf_field_structure_get_field(
+       timestamp_begin = bt_field_structure_get_field_by_name(
                        packet_context, "timestamp_begin");
-       if (!timestamp_begin || !bt_ctf_field_is_integer(timestamp_begin)) {
-               goto end;
+       if (!timestamp_begin || !bt_field_is_integer(timestamp_begin)) {
+               goto end_no_msg;
        }
-       timestamp_end = bt_ctf_field_structure_get_field(
+       timestamp_end = bt_field_structure_get_field_by_name(
                        packet_context, "timestamp_end");
-       if (!timestamp_end || !bt_ctf_field_is_integer(timestamp_end)) {
-               goto end;
+       if (!timestamp_end || !bt_field_is_integer(timestamp_end)) {
+               goto end_no_msg;
        }
 
        if (ns_from_integer_field(timestamp_begin, &pkt_begin_ns)) {
-               goto end;
+               goto end_no_msg;
        }
        if (ns_from_integer_field(timestamp_end, &pkt_end_ns)) {
-               goto end;
+               goto end_no_msg;
+       }
+
+       if (update_lazy_bound(begin, "begin", pkt_begin_ns, &lazy_update)) {
+               goto end_no_msg;
+       }
+       if (update_lazy_bound(end, "end", pkt_end_ns, &lazy_update)) {
+               goto end_no_msg;
+       }
+       if (lazy_update && begin->set && end->set) {
+               if (begin->value > end->value) {
+                       BT_LOGE_STR("Unexpected: time range begin value is above end value.");
+                       goto end_no_msg;
+               }
        }
 
        begin_ns = begin->set ? begin->value : INT64_MIN;
@@ -355,104 +456,156 @@ enum bt_notification_iterator_status evaluate_packet_notification(
         * packet.
         */
        in_range = (pkt_end_ns >= begin_ns) && (pkt_begin_ns <= end_ns);
+       if (!in_range) {
+               goto end_no_msg;
+       }
+       if (pkt_begin_ns > end_ns) {
+               *finished = true;
+       }
+
+       if (begin_ns > pkt_begin_ns) {
+               ret = update_packet_context_field(trim_it->err, writer_packet,
+                               "timestamp_begin",
+                               get_raw_timestamp(writer_packet, begin_ns));
+               BT_ASSERT(!ret);
+       }
+
+       if (end_ns < pkt_end_ns) {
+               ret = update_packet_context_field(trim_it->err, writer_packet,
+                               "timestamp_end",
+                               get_raw_timestamp(writer_packet, end_ns));
+               BT_ASSERT(!ret);
+       }
+
 end:
+        switch (bt_message_get_type(message)) {
+       case BT_MESSAGE_TYPE_PACKET_BEGINNING:
+               new_message = bt_message_packet_beginning_create(writer_packet);
+               BT_ASSERT(new_message);
+               break;
+       case BT_MESSAGE_TYPE_PACKET_END:
+               new_message = bt_message_packet_end_create(writer_packet);
+               BT_ASSERT(new_message);
+               break;
+       default:
+               break;
+       }
+end_no_msg:
        *_packet_in_range = in_range;
-       bt_put(packet);
-       bt_put(packet_context);
-       bt_put(timestamp_begin);
-       bt_put(timestamp_end);
-       return ret;
+       bt_packet_put_ref(packet);
+       bt_packet_put_ref(writer_packet);
+       bt_object_put_ref(packet_context);
+       bt_object_put_ref(timestamp_begin);
+       bt_object_put_ref(timestamp_end);
+       return new_message;
 }
 
-/* Return true if the notification should be forwarded. */
 static
-enum bt_notification_iterator_status evaluate_notification(
-               struct bt_notification *notification,
+const bt_message *evaluate_stream_message(
+               const bt_message *message,
+               struct trimmer_iterator *trim_it)
+{
+       const bt_stream *stream;
+
+       stream = bt_message_stream_end_get_stream(message);
+       BT_ASSERT(stream);
+
+       /* FIXME: useless copy */
+       return bt_message_stream_end_create(stream);
+}
+
+/* Return true if the message should be forwarded. */
+static
+enum bt_message_iterator_status evaluate_message(
+               const bt_message **message,
+               struct trimmer_iterator *trim_it,
                struct trimmer_bound *begin, struct trimmer_bound *end,
                bool *in_range)
 {
-       enum bt_notification_type type;
-       enum bt_notification_iterator_status ret =
-                       BT_NOTIFICATION_ITERATOR_STATUS_OK;
+       enum bt_message_type type;
+       const bt_message *new_message = NULL;
+       bool finished = false;
 
        *in_range = true;
-       type = bt_notification_get_type(notification);
+       type = bt_message_get_type(*message);
        switch (type) {
-       case BT_NOTIFICATION_TYPE_EVENT:
-               ret = evaluate_event_notification(notification, begin,
-                               end, in_range);
+       case BT_MESSAGE_TYPE_EVENT:
+               new_message = evaluate_event_message(*message,
+                               trim_it, begin, end, in_range, &finished);
+               break;
+       case BT_MESSAGE_TYPE_PACKET_BEGINNING:
+       case BT_MESSAGE_TYPE_PACKET_END:
+               new_message = evaluate_packet_message(*message,
+                               trim_it, begin, end, in_range, &finished);
                break;
-       case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
-       case BT_NOTIFICATION_TYPE_PACKET_END:
-               ret = evaluate_packet_notification(notification, begin,
-                               end, in_range);
+       case BT_MESSAGE_TYPE_STREAM_END:
+               new_message = evaluate_stream_message(*message,
+                               trim_it);
                break;
        default:
-               /* Accept all other notifications. */
                break;
        }
-       return ret;
+       BT_MESSAGE_PUT_REF_AND_RESET(*message);
+       *message = new_message;
+
+       if (finished) {
+               return BT_MESSAGE_ITERATOR_STATUS_END;
+       }
+
+       return BT_MESSAGE_ITERATOR_STATUS_OK;
 }
 
 BT_HIDDEN
-struct bt_notification_iterator_next_return trimmer_iterator_next(
-               struct bt_private_notification_iterator *iterator)
+bt_message_iterator_next_method_return trimmer_iterator_next(
+               bt_self_message_iterator *iterator)
 {
        struct trimmer_iterator *trim_it = NULL;
-       struct bt_private_component *component = NULL;
+       bt_self_component *component = NULL;
        struct trimmer *trimmer = NULL;
-       struct bt_notification_iterator *source_it = NULL;
-       struct bt_notification_iterator_next_return ret = {
-               .status = BT_NOTIFICATION_ITERATOR_STATUS_OK,
-               .notification = NULL,
+       bt_message_iterator *source_it = NULL;
+       bt_message_iterator_next_method_return ret = {
+               .status = BT_MESSAGE_ITERATOR_STATUS_OK,
+               .message = NULL,
        };
-       bool notification_in_range = false;
+       bool message_in_range = false;
 
-       trim_it = bt_private_notification_iterator_get_user_data(iterator);
-       assert(trim_it);
+       trim_it = bt_self_message_iterator_get_user_data(iterator);
+       BT_ASSERT(trim_it);
 
-       component = bt_private_notification_iterator_get_private_component(
+       component = bt_self_message_iterator_get_private_component(
                iterator);
-       assert(component);
-       trimmer = bt_private_component_get_user_data(component);
-       assert(trimmer);
+       BT_ASSERT(component);
+       trimmer = bt_self_component_get_user_data(component);
+       BT_ASSERT(trimmer);
 
        source_it = trim_it->input_iterator;
-       assert(source_it);
+       BT_ASSERT(source_it);
 
-       while (!notification_in_range) {
-               ret.status = bt_notification_iterator_next(source_it);
-               if (ret.status != BT_NOTIFICATION_ITERATOR_STATUS_OK) {
+       while (!message_in_range) {
+               ret.status = bt_message_iterator_next(source_it);
+               if (ret.status != BT_MESSAGE_ITERATOR_STATUS_OK) {
                        goto end;
                }
 
-               ret.notification = bt_notification_iterator_get_notification(
+               ret.message = bt_message_iterator_get_message(
                                source_it);
-               if (!ret.notification) {
-                       ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+               if (!ret.message) {
+                       ret.status = BT_MESSAGE_ITERATOR_STATUS_ERROR;
                        goto end;
                }
 
-               ret.status = evaluate_notification(ret.notification,
+               ret.status = evaluate_message(&ret.message, trim_it,
                                &trimmer->begin, &trimmer->end,
-                               &notification_in_range);
-               if (!notification_in_range) {
-                       bt_put(ret.notification);
+                               &message_in_range);
+               if (!message_in_range) {
+                       BT_OBJECT_PUT_REF_AND_RESET(ret.message);
                }
 
-               if (ret.status != BT_NOTIFICATION_ITERATOR_STATUS_OK) {
+               if (ret.status != BT_MESSAGE_ITERATOR_STATUS_OK) {
                        break;
                }
        }
 end:
-       bt_put(component);
+       bt_object_put_ref(component);
        return ret;
 }
-
-BT_HIDDEN
-enum bt_notification_iterator_status trimmer_iterator_seek_time(
-               struct bt_private_notification_iterator *iterator,
-               int64_t time)
-{
-       return BT_NOTIFICATION_ITERATOR_STATUS_OK;
-}
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