lib: split trace API into trace class and trace APIs
[babeltrace.git] / lib / lib-logging.c
index 3eb3f1866745a897b5a795310f1a9a375904280f..a72cdd98e1d9ac4e5ea4a741814ed7c799933324 100644 (file)
 #include <babeltrace/common-internal.h>
 #include <babeltrace/lib-logging-internal.h>
 #include <babeltrace/values-internal.h>
+#include <babeltrace/values-internal.h>
 #include <babeltrace/object-pool-internal.h>
 #include <babeltrace/trace-ir/field-classes-internal.h>
 #include <babeltrace/trace-ir/fields-internal.h>
 #include <babeltrace/trace-ir/event-class-internal.h>
+#include <babeltrace/trace-ir/event-const.h>
 #include <babeltrace/trace-ir/event-internal.h>
+#include <babeltrace/trace-ir/packet-const.h>
 #include <babeltrace/trace-ir/packet-internal.h>
 #include <babeltrace/trace-ir/stream-class-internal.h>
 #include <babeltrace/trace-ir/stream-internal.h>
+#include <babeltrace/trace-ir/stream-const.h>
 #include <babeltrace/trace-ir/trace-internal.h>
+#include <babeltrace/trace-ir/trace-class-internal.h>
 #include <babeltrace/trace-ir/clock-class-internal.h>
 #include <babeltrace/trace-ir/clock-value-internal.h>
 #include <babeltrace/trace-ir/field-path-internal.h>
@@ -89,6 +94,8 @@ static char __thread lib_logging_buf[LIB_LOGGING_BUF_SIZE];
 
 #define PRFIELD(_expr) prefix, (_expr)
 
+#define PRFIELD_GSTRING(_expr) PRFIELD((_expr) ? (_expr)->str : NULL)
+
 #define SET_TMP_PREFIX(_prefix2)                                       \
        do {                                                            \
                strcpy(tmp_prefix, prefix);                             \
@@ -96,22 +103,22 @@ static char __thread lib_logging_buf[LIB_LOGGING_BUF_SIZE];
        } while (0)
 
 static inline void format_component(char **buf_ch, bool extended,
-               const char *prefix, struct bt_component *component);
+               const char *prefix, const struct bt_component *component);
 
 static inline void format_port(char **buf_ch, bool extended,
-               const char *prefix, struct bt_port *port);
+               const char *prefix, const struct bt_port *port);
 
 static inline void format_connection(char **buf_ch, bool extended,
-               const char *prefix, struct bt_connection *connection);
+               const char *prefix, const struct bt_connection *connection);
 
 static inline void format_clock_value(char **buf_ch, bool extended,
-               const char *prefix, struct bt_clock_value *clock_value);
+               const char *prefix, const struct bt_clock_value *clock_value);
 
 static inline void format_field_path(char **buf_ch, bool extended,
-               const char *prefix, struct bt_field_path *field_path);
+               const char *prefix, const struct bt_field_path *field_path);
 
 static inline void format_object(char **buf_ch, bool extended,
-               const char *prefix, struct bt_object *obj)
+               const char *prefix, const struct bt_object *obj)
 {
        BUF_APPEND(", %sref-count=%llu", prefix, obj->ref_count);
 }
@@ -138,7 +145,7 @@ static inline void format_uuid(char **buf_ch, bt_uuid uuid)
 }
 
 static inline void format_object_pool(char **buf_ch, bool extended,
-               const char *prefix, struct bt_object_pool *pool)
+               const char *prefix, const struct bt_object_pool *pool)
 {
        BUF_APPEND(", %ssize=%zu", PRFIELD(pool->size));
 
@@ -149,9 +156,10 @@ static inline void format_object_pool(char **buf_ch, bool extended,
 
 static inline void format_integer_field_class(char **buf_ch,
                bool extended, const char *prefix,
-               struct bt_field_class *field_class)
+               const struct bt_field_class *field_class)
 {
-       struct bt_field_class_integer *int_fc = (void *) field_class;
+       const struct bt_field_class_integer *int_fc =
+               (const void *) field_class;
 
        BUF_APPEND(", %srange-size=%" PRIu64 ", %sbase=%s",
                PRFIELD(int_fc->range),
@@ -160,9 +168,10 @@ static inline void format_integer_field_class(char **buf_ch,
 
 static inline void format_array_field_class(char **buf_ch,
                bool extended, const char *prefix,
-               struct bt_field_class *field_class)
+               const struct bt_field_class *field_class)
 {
-       struct bt_field_class_array *array_fc = (void *) field_class;
+       const struct bt_field_class_array *array_fc =
+               (const void *) field_class;
 
        BUF_APPEND(", %selement-fc-addr=%p, %selement-fc-type=%s",
                PRFIELD(array_fc->element_fc),
@@ -170,7 +179,7 @@ static inline void format_array_field_class(char **buf_ch,
 }
 
 static inline void format_field_class(char **buf_ch, bool extended,
-               const char *prefix, struct bt_field_class *field_class)
+               const char *prefix, const struct bt_field_class *field_class)
 {
        char tmp_prefix[64];
 
@@ -179,8 +188,8 @@ static inline void format_field_class(char **buf_ch, bool extended,
 
        if (extended) {
                BUF_APPEND(", %sis-frozen=%d", PRFIELD(field_class->frozen));
-               BUF_APPEND(", %sis-part-of-trace=%d",
-                       PRFIELD(field_class->part_of_trace));
+               BUF_APPEND(", %sis-part-of-trace-class=%d",
+                       PRFIELD(field_class->part_of_trace_class));
        } else {
                return;
        }
@@ -194,7 +203,7 @@ static inline void format_field_class(char **buf_ch, bool extended,
        }
        case BT_FIELD_CLASS_TYPE_REAL:
        {
-               struct bt_field_class_real *real_fc = (void *) field_class;
+               const struct bt_field_class_real *real_fc = (void *) field_class;
 
                BUF_APPEND(", %sis-single-precision=%d",
                        PRFIELD(real_fc->is_single_precision));
@@ -203,8 +212,8 @@ static inline void format_field_class(char **buf_ch, bool extended,
        case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION:
        case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION:
        {
-               struct bt_field_class_enumeration *enum_fc =
-                       (void *) field_class;
+               const struct bt_field_class_enumeration *enum_fc =
+                       (const void *) field_class;
 
                format_integer_field_class(buf_ch, extended, prefix, field_class);
                BUF_APPEND(", %smapping-count=%u",
@@ -213,8 +222,8 @@ static inline void format_field_class(char **buf_ch, bool extended,
        }
        case BT_FIELD_CLASS_TYPE_STRUCTURE:
        {
-               struct bt_field_class_structure *struct_fc =
-                       (void *) field_class;
+               const struct bt_field_class_structure *struct_fc =
+                       (const void *) field_class;
 
                if (struct_fc->common.named_fcs) {
                        BUF_APPEND(", %smember-count=%u",
@@ -225,8 +234,8 @@ static inline void format_field_class(char **buf_ch, bool extended,
        }
        case BT_FIELD_CLASS_TYPE_STATIC_ARRAY:
        {
-               struct bt_field_class_static_array *array_fc =
-                       (void *) field_class;
+               const struct bt_field_class_static_array *array_fc =
+                       (const void *) field_class;
 
                format_array_field_class(buf_ch, extended, prefix, field_class);
                BUF_APPEND(", %slength=%" PRIu64, PRFIELD(array_fc->length));
@@ -234,8 +243,8 @@ static inline void format_field_class(char **buf_ch, bool extended,
        }
        case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY:
        {
-               struct bt_field_class_dynamic_array *array_fc =
-                       (void *) field_class;
+               const struct bt_field_class_dynamic_array *array_fc =
+                       (const void *) field_class;
 
                format_array_field_class(buf_ch, extended, prefix, field_class);
 
@@ -255,7 +264,8 @@ static inline void format_field_class(char **buf_ch, bool extended,
        }
        case BT_FIELD_CLASS_TYPE_VARIANT:
        {
-               struct bt_field_class_variant *var_fc = (void *) field_class;
+               const struct bt_field_class_variant *var_fc =
+                       (const void *) field_class;
 
                if (var_fc->common.named_fcs) {
                        BUF_APPEND(", %soption-count=%u",
@@ -282,10 +292,11 @@ static inline void format_field_class(char **buf_ch, bool extended,
 }
 
 static inline void format_field_integer_extended(char **buf_ch,
-               const char *prefix, struct bt_field *field)
+               const char *prefix, const struct bt_field *field)
 {
-       struct bt_field_integer *integer = (void *) field;
-       struct bt_field_class_integer *field_class = (void *) field->class;
+       const struct bt_field_integer *integer = (void *) field;
+       const struct bt_field_class_integer *field_class =
+               (void *) field->class;
        const char *fmt = NULL;
 
        BT_ASSERT(field_class);
@@ -313,7 +324,7 @@ static inline void format_field_integer_extended(char **buf_ch,
 }
 
 static inline void format_field(char **buf_ch, bool extended,
-               const char *prefix, struct bt_field *field)
+               const char *prefix, const struct bt_field *field)
 {
        BUF_APPEND(", %sis-set=%d", PRFIELD(field->is_set));
 
@@ -345,14 +356,14 @@ static inline void format_field(char **buf_ch, bool extended,
        }
        case BT_FIELD_CLASS_TYPE_REAL:
        {
-               struct bt_field_real *real_field = (void *) field;
+               const struct bt_field_real *real_field = (const void *) field;
 
                BUF_APPEND(", %svalue=%f", PRFIELD(real_field->value));
                break;
        }
        case BT_FIELD_CLASS_TYPE_STRING:
        {
-               struct bt_field_string *str = (void *) field;
+               const struct bt_field_string *str = (const void *) field;
 
                if (str->buf) {
                        BT_ASSERT(str->buf->data);
@@ -365,7 +376,7 @@ static inline void format_field(char **buf_ch, bool extended,
        case BT_FIELD_CLASS_TYPE_STATIC_ARRAY:
        case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY:
        {
-               struct bt_field_array *array_field = (void *) field;
+               const struct bt_field_array *array_field = (const void *) field;
 
                BUF_APPEND(", %slength=%" PRIu64, PRFIELD(array_field->length));
 
@@ -378,7 +389,7 @@ static inline void format_field(char **buf_ch, bool extended,
        }
        case BT_FIELD_CLASS_TYPE_VARIANT:
        {
-               struct bt_field_variant *var_field = (void *) field;
+               const struct bt_field_variant *var_field = (const void *) field;
 
                BUF_APPEND(", %sselected-field-index=%" PRIu64,
                        PRFIELD(var_field->selected_index));
@@ -390,7 +401,7 @@ static inline void format_field(char **buf_ch, bool extended,
 }
 
 static inline void format_field_path(char **buf_ch, bool extended,
-               const char *prefix, struct bt_field_path *field_path)
+               const char *prefix, const struct bt_field_path *field_path)
 {
        uint64_t i;
 
@@ -417,49 +428,76 @@ static inline void format_field_path(char **buf_ch, bool extended,
        BUF_APPEND("%s", "]");
 }
 
-static inline void format_trace(char **buf_ch, bool extended,
-               const char *prefix, struct bt_trace *trace)
+static inline void format_trace_class(char **buf_ch, bool extended,
+               const char *prefix, const struct bt_trace_class *trace_class)
 {
        char tmp_prefix[64];
 
-       if (trace->name.value) {
-               BUF_APPEND(", %sname=\"%s\"", PRFIELD(trace->name.value));
+       if (trace_class->name.value) {
+               BUF_APPEND(", %sname=\"%s\"",
+                       PRFIELD(trace_class->name.value));
        }
 
        if (!extended) {
                return;
        }
 
-       BUF_APPEND(", %sis-frozen=%d", PRFIELD(trace->frozen));
+       BUF_APPEND(", %sis-frozen=%d", PRFIELD(trace_class->frozen));
 
-       if (trace->uuid.value) {
-               BUF_APPEND_UUID(trace->uuid.value);
+       if (trace_class->uuid.value) {
+               BUF_APPEND_UUID(trace_class->uuid.value);
        }
 
-       if (trace->stream_classes) {
+       if (trace_class->stream_classes) {
                BUF_APPEND(", %sstream-class-count=%u",
-                       PRFIELD(trace->stream_classes->len));
+                       PRFIELD(trace_class->stream_classes->len));
+       }
+
+       BUF_APPEND(", %spacket-header-fc-addr=%p, "
+               "%sassigns-auto-sc-id=%d",
+               PRFIELD(trace_class->packet_header_fc),
+               PRFIELD(trace_class->assigns_automatic_stream_class_id));
+       SET_TMP_PREFIX("phf-pool-");
+       format_object_pool(buf_ch, extended, prefix,
+               &trace_class->packet_header_field_pool);
+}
+
+static inline void format_trace(char **buf_ch, bool extended,
+               const char *prefix, const struct bt_trace *trace)
+{
+       char tmp_prefix[64];
+
+       if (trace->name.value) {
+               BUF_APPEND(", %sname=\"%s\"", PRFIELD(trace->name.value));
        }
 
+       if (!extended) {
+               return;
+       }
+
+       BUF_APPEND(", %sis-frozen=%d", PRFIELD(trace->frozen));
+
        if (trace->streams) {
                BUF_APPEND(", %sstream-count=%u",
                        PRFIELD(trace->streams->len));
        }
 
-       BUF_APPEND(", %spacket-header-fc-addr=%p, %sis-static=%d, "
-               "%sassigns-auto-sc-id=%d",
-               PRFIELD(trace->packet_header_fc),
-               PRFIELD(trace->is_static),
-               PRFIELD(trace->assigns_automatic_stream_class_id));
-       SET_TMP_PREFIX("phf-pool-");
-       format_object_pool(buf_ch, extended, prefix,
-               &trace->packet_header_field_pool);
+       BUF_APPEND(", %sis-static=%d", PRFIELD(trace->is_static));
+
+       if (!trace->class) {
+               return;
+       }
+
+       BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace->class));
+       SET_TMP_PREFIX("trace-class-");
+       format_trace_class(buf_ch, false, tmp_prefix, trace->class);
 }
 
 static inline void format_stream_class(char **buf_ch, bool extended,
-               const char *prefix, struct bt_stream_class *stream_class)
+               const char *prefix,
+               const struct bt_stream_class *stream_class)
 {
-       struct bt_trace *trace;
+       const struct bt_trace_class *trace_class;
        char tmp_prefix[64];
 
        BUF_APPEND(", %sid=%" PRIu64, PRFIELD(stream_class->id));
@@ -485,8 +523,8 @@ static inline void format_stream_class(char **buf_ch, bool extended,
                PRFIELD(stream_class->packet_context_fc),
                PRFIELD(stream_class->event_header_fc),
                PRFIELD(stream_class->event_common_context_fc));
-       trace = bt_stream_class_borrow_trace_inline(stream_class);
-       if (!trace) {
+       trace_class = bt_stream_class_borrow_trace_class_inline(stream_class);
+       if (!trace_class) {
                return;
        }
 
@@ -501,9 +539,9 @@ static inline void format_stream_class(char **buf_ch, bool extended,
                PRFIELD(stream_class->packets_have_packet_counter_snapshot),
                PRFIELD(stream_class->packets_have_default_beginning_cv),
                PRFIELD(stream_class->packets_have_default_end_cv));
-       BUF_APPEND(", %strace-addr=%p", PRFIELD(trace));
-       SET_TMP_PREFIX("trace-");
-       format_trace(buf_ch, false, tmp_prefix, trace);
+       BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
+       SET_TMP_PREFIX("trace-class-");
+       format_trace_class(buf_ch, false, tmp_prefix, trace_class);
        SET_TMP_PREFIX("ehf-pool-");
        format_object_pool(buf_ch, extended, prefix,
                &stream_class->event_header_field_pool);
@@ -513,10 +551,10 @@ static inline void format_stream_class(char **buf_ch, bool extended,
 }
 
 static inline void format_event_class(char **buf_ch, bool extended,
-               const char *prefix, struct bt_event_class *event_class)
+               const char *prefix, const struct bt_event_class *event_class)
 {
-       struct bt_stream_class *stream_class;
-       struct bt_trace *trace;
+       const struct bt_stream_class *stream_class;
+       const struct bt_trace_class *trace_class;
        char tmp_prefix[64];
 
        BUF_APPEND(", %sid=%" PRIu64, PRFIELD(event_class->id));
@@ -547,7 +585,7 @@ static inline void format_event_class(char **buf_ch, bool extended,
                PRFIELD(event_class->specific_context_fc),
                PRFIELD(event_class->payload_fc));
 
-       stream_class = bt_event_class_borrow_stream_class(event_class);
+       stream_class = bt_event_class_borrow_stream_class_const(event_class);
        if (!stream_class) {
                return;
        }
@@ -555,23 +593,24 @@ static inline void format_event_class(char **buf_ch, bool extended,
        BUF_APPEND(", %sstream-class-addr=%p", PRFIELD(stream_class));
        SET_TMP_PREFIX("stream-class-");
        format_stream_class(buf_ch, false, tmp_prefix, stream_class);
-       trace = bt_stream_class_borrow_trace_inline(stream_class);
-       if (!trace) {
+       trace_class = bt_stream_class_borrow_trace_class_inline(stream_class);
+       if (!trace_class) {
                return;
        }
 
-       BUF_APPEND(", %strace-addr=%p", PRFIELD(trace));
-       SET_TMP_PREFIX("trace-");
-       format_trace(buf_ch, false, tmp_prefix, trace);
+       BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
+       SET_TMP_PREFIX("trace-class-");
+       format_trace_class(buf_ch, false, tmp_prefix, trace_class);
        SET_TMP_PREFIX("event-pool-");
        format_object_pool(buf_ch, extended, prefix, &event_class->event_pool);
 }
 
 static inline void format_stream(char **buf_ch, bool extended,
-               const char *prefix, struct bt_stream *stream)
+               const char *prefix, const struct bt_stream *stream)
 {
-       struct bt_stream_class *stream_class;
-       struct bt_trace *trace;
+       const struct bt_stream_class *stream_class;
+       const struct bt_trace_class *trace_class = NULL;
+       const struct bt_trace *trace = NULL;
        char tmp_prefix[64];
 
        BUF_APPEND(", %sid=%" PRIu64, PRFIELD(stream->id));
@@ -584,36 +623,36 @@ static inline void format_stream(char **buf_ch, bool extended,
                return;
        }
 
-       stream_class = bt_stream_borrow_class(stream);
-       if (!stream_class) {
-               return;
+       stream_class = bt_stream_borrow_class_const(stream);
+       if (stream_class) {
+               BUF_APPEND(", %sstream-class-addr=%p", PRFIELD(stream_class));
+               SET_TMP_PREFIX("stream-class-");
+               format_stream_class(buf_ch, false, tmp_prefix, stream_class);
+               trace_class = bt_stream_class_borrow_trace_class_inline(stream_class);
        }
 
-       BUF_APPEND(", %sstream-class-addr=%p", PRFIELD(stream_class));
-       SET_TMP_PREFIX("stream-class-");
-       format_stream_class(buf_ch, false, tmp_prefix, stream_class);
-       trace = bt_stream_class_borrow_trace_inline(stream_class);
-       if (!trace) {
-               return;
+       if (trace_class) {
+               BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
+               SET_TMP_PREFIX("trace-class-");
+               format_trace_class(buf_ch, false, tmp_prefix, trace_class);
        }
 
-       trace = (void *) bt_object_borrow_parent(&stream->base);
-       if (!trace) {
-               return;
+       trace = bt_stream_borrow_trace_inline(stream);
+       if (trace) {
+               BUF_APPEND(", %strace-addr=%p", PRFIELD(trace));
+               SET_TMP_PREFIX("trace-");
+               format_trace(buf_ch, false, tmp_prefix, trace);
        }
 
-       BUF_APPEND(", %strace-addr=%p", PRFIELD(trace));
-       SET_TMP_PREFIX("trace-");
-       format_trace(buf_ch, false, tmp_prefix, trace);
        SET_TMP_PREFIX("packet-pool-");
        format_object_pool(buf_ch, extended, prefix, &stream->packet_pool);
 }
 
 static inline void format_packet(char **buf_ch, bool extended,
-               const char *prefix, struct bt_packet *packet)
+               const char *prefix, const struct bt_packet *packet)
 {
-       struct bt_stream *stream;
-       struct bt_trace *trace;
+       const struct bt_stream *stream;
+       const struct bt_trace_class *trace_class;
        char tmp_prefix[64];
 
        if (!extended) {
@@ -625,7 +664,7 @@ static inline void format_packet(char **buf_ch, bool extended,
                PRFIELD(packet->frozen),
                PRFIELD(packet->header_field ? packet->header_field->field : NULL),
                PRFIELD(packet->context_field ? packet->context_field->field : NULL));
-       stream = bt_packet_borrow_stream(packet);
+       stream = bt_packet_borrow_stream_const(packet);
        if (!stream) {
                return;
        }
@@ -655,23 +694,23 @@ static inline void format_packet(char **buf_ch, bool extended,
        BUF_APPEND(", %sstream-addr=%p", PRFIELD(stream));
        SET_TMP_PREFIX("stream-");
        format_stream(buf_ch, false, tmp_prefix, stream);
-       trace = (struct bt_trace *) bt_object_borrow_parent(&stream->base);
-       if (!trace) {
+       trace_class = (const struct bt_trace_class *) bt_object_borrow_parent(&stream->base);
+       if (!trace_class) {
                return;
        }
 
-       BUF_APPEND(", %strace-addr=%p", PRFIELD(trace));
-       SET_TMP_PREFIX("trace-");
-       format_trace(buf_ch, false, tmp_prefix, trace);
+       BUF_APPEND(", %strace-class-addr=%p", PRFIELD(trace_class));
+       SET_TMP_PREFIX("trace-class-");
+       format_trace_class(buf_ch, false, tmp_prefix, trace_class);
 }
 
 static inline void format_event(char **buf_ch, bool extended,
-               const char *prefix, struct bt_event *event)
+               const char *prefix, const struct bt_event *event)
 {
-       struct bt_packet *packet;
-       struct bt_stream *stream;
-       struct bt_trace *trace;
-       struct bt_stream_class *stream_class;
+       const struct bt_packet *packet;
+       const struct bt_stream *stream;
+       const struct bt_trace_class *trace_class;
+       const struct bt_stream_class *stream_class;
        char tmp_prefix[64];
 
        if (!extended) {
@@ -680,7 +719,7 @@ static inline void format_event(char **buf_ch, bool extended,
 
        BUF_APPEND(", %sis-frozen=%d, %sheader-field-addr=%p, "
                "%scommon-context-field-addr=%p, "
-               "%specific-scontext-field-addr=%p, "
+               "%sspecific-context-field-addr=%p, "
                "%spayload-field-addr=%p, ",
                PRFIELD(event->frozen),
                PRFIELD(event->header_field ?
@@ -703,11 +742,14 @@ static inline void format_event(char **buf_ch, bool extended,
                format_stream_class(buf_ch, false, tmp_prefix,
                        stream_class);
 
-               trace = bt_stream_class_borrow_trace_inline(stream_class);
-               if (trace) {
-                       BUF_APPEND(", %strace-addr=%p", PRFIELD(trace));
-                       SET_TMP_PREFIX("trace-");
-                       format_trace(buf_ch, false, tmp_prefix, trace);
+               trace_class = bt_stream_class_borrow_trace_class_inline(
+                       stream_class);
+               if (trace_class) {
+                       BUF_APPEND(", %strace-class-addr=%p",
+                               PRFIELD(trace_class));
+                       SET_TMP_PREFIX("trace-class-");
+                       format_trace_class(buf_ch, false, tmp_prefix,
+                               trace_class);
                }
        }
 
@@ -717,7 +759,7 @@ static inline void format_event(char **buf_ch, bool extended,
                        event->default_cv);
        }
 
-       packet = bt_event_borrow_packet(event);
+       packet = bt_event_borrow_packet_const(event);
        if (!packet) {
                return;
        }
@@ -725,7 +767,7 @@ static inline void format_event(char **buf_ch, bool extended,
        BUF_APPEND(", %spacket-addr=%p", PRFIELD(packet));
        SET_TMP_PREFIX("packet-");
        format_packet(buf_ch, false, tmp_prefix, packet);
-       stream = bt_packet_borrow_stream(packet);
+       stream = bt_packet_borrow_stream_const(packet);
        if (!stream) {
                return;
        }
@@ -736,7 +778,7 @@ static inline void format_event(char **buf_ch, bool extended,
 }
 
 static inline void format_clock_class(char **buf_ch, bool extended,
-               const char *prefix, struct bt_clock_class *clock_class)
+               const char *prefix, const struct bt_clock_class *clock_class)
 {
        char tmp_prefix[64];
 
@@ -774,7 +816,7 @@ static inline void format_clock_class(char **buf_ch, bool extended,
 }
 
 static inline void format_clock_value(char **buf_ch, bool extended,
-               const char *prefix, struct bt_clock_value *clock_value)
+               const char *prefix, const struct bt_clock_value *clock_value)
 {
        char tmp_prefix[64];
        BUF_APPEND(", %svalue=%" PRIu64 ", %sns-from-origin=%" PRId64,
@@ -786,14 +828,18 @@ static inline void format_clock_value(char **buf_ch, bool extended,
        }
 
        BUF_APPEND(", %sis-set=%d", PRFIELD(clock_value->is_set));
-       BUF_APPEND(", %sclock-class-addr=%p",
-               PRFIELD(clock_value->clock_class));
-       SET_TMP_PREFIX("clock-class-");
-       format_clock_class(buf_ch, false, tmp_prefix, clock_value->clock_class);
+
+       if (clock_value->clock_class) {
+               BUF_APPEND(", %sclock-class-addr=%p",
+                       PRFIELD(clock_value->clock_class));
+               SET_TMP_PREFIX("clock-class-");
+               format_clock_class(buf_ch, false, tmp_prefix,
+                       clock_value->clock_class);
+       }
 }
 
 static inline void format_value(char **buf_ch, bool extended,
-               const char *prefix, struct bt_value *value)
+               const char *prefix, const struct bt_value *value)
 {
        BUF_APPEND(", %stype=%s",
                PRFIELD(bt_common_value_type_string(bt_value_get_type(value))));
@@ -853,7 +899,7 @@ static inline void format_value(char **buf_ch, bool extended,
 }
 
 static inline void format_notification(char **buf_ch, bool extended,
-               const char *prefix, struct bt_notification *notif)
+               const char *prefix, const struct bt_notification *notif)
 {
        char tmp_prefix[64];
 
@@ -870,46 +916,62 @@ static inline void format_notification(char **buf_ch, bool extended,
        switch (notif->type) {
        case BT_NOTIFICATION_TYPE_EVENT:
        {
-               struct bt_notification_event *notif_event = (void *) notif;
+               const struct bt_notification_event *notif_event =
+                       (const void *) notif;
+
+               if (notif_event->event) {
+                       SET_TMP_PREFIX("event-");
+                       format_event(buf_ch, true, tmp_prefix, notif_event->event);
+               }
 
-               SET_TMP_PREFIX("event-");
-               format_event(buf_ch, true, tmp_prefix, notif_event->event);
                break;
        }
        case BT_NOTIFICATION_TYPE_STREAM_BEGIN:
        {
-               struct bt_notification_stream_begin *notif_stream =
-                       (void *) notif;
+               const struct bt_notification_stream_begin *notif_stream =
+                       (const void *) notif;
+
+               if (notif_stream->stream) {
+                       SET_TMP_PREFIX("stream-");
+                       format_stream(buf_ch, true, tmp_prefix, notif_stream->stream);
+               }
 
-               SET_TMP_PREFIX("stream-");
-               format_stream(buf_ch, true, tmp_prefix, notif_stream->stream);
                break;
        }
        case BT_NOTIFICATION_TYPE_STREAM_END:
        {
-               struct bt_notification_stream_end *notif_stream =
-                       (void *) notif;
+               const struct bt_notification_stream_end *notif_stream =
+                       (const void *) notif;
+
+               if (notif_stream->stream) {
+                       SET_TMP_PREFIX("stream-");
+                       format_stream(buf_ch, true, tmp_prefix, notif_stream->stream);
+               }
 
-               SET_TMP_PREFIX("stream-");
-               format_stream(buf_ch, true, tmp_prefix, notif_stream->stream);
                break;
        }
        case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
        {
-               struct bt_notification_packet_begin *notif_packet =
-                       (void *) notif;
+               const struct bt_notification_packet_begin *notif_packet =
+                       (const void *) notif;
+
+               if (notif_packet->packet) {
+                       SET_TMP_PREFIX("packet-");
+                       format_packet(buf_ch, true, tmp_prefix, notif_packet->packet);
+               }
 
-               SET_TMP_PREFIX("packet-");
-               format_packet(buf_ch, true, tmp_prefix, notif_packet->packet);
                break;
        }
        case BT_NOTIFICATION_TYPE_PACKET_END:
        {
-               struct bt_notification_packet_end *notif_packet =
-                       (void *) notif;
+               const struct bt_notification_packet_end *notif_packet =
+                       (const void *) notif;
+
+               if (notif_packet->packet) {
+                       SET_TMP_PREFIX("packet-");
+                       format_packet(buf_ch, true, tmp_prefix, notif_packet->packet);
+               }
 
-               SET_TMP_PREFIX("packet-");
-               format_packet(buf_ch, true, tmp_prefix, notif_packet->packet);
                break;
        }
        default:
@@ -919,27 +981,28 @@ static inline void format_notification(char **buf_ch, bool extended,
 
 static inline void format_plugin_so_shared_lib_handle(char **buf_ch,
                const char *prefix,
-               struct bt_plugin_so_shared_lib_handle *handle)
+               const struct bt_plugin_so_shared_lib_handle *handle)
 {
        BUF_APPEND(", %saddr=%p", PRFIELD(handle));
 
        if (handle->path) {
-               BUF_APPEND(", %spath=\"%s\"", PRFIELD(handle->path->str));
+               BUF_APPEND(", %spath=\"%s\"", PRFIELD_GSTRING(handle->path));
        }
 }
 
 static inline void format_component_class(char **buf_ch, bool extended,
-               const char *prefix, struct bt_component_class *comp_class)
+               const char *prefix,
+               const struct bt_component_class *comp_class)
 {
        char tmp_prefix[64];
 
        BUF_APPEND(", %stype=%s, %sname=\"%s\"",
                PRFIELD(bt_component_class_type_string(comp_class->type)),
-               PRFIELD(comp_class->name ? comp_class->name->str : NULL));
+               PRFIELD_GSTRING(comp_class->name));
 
        if (comp_class->description) {
                BUF_APPEND(", %spartial-descr=\"%.32s\"",
-                       PRFIELD(comp_class->description->str));
+                       PRFIELD_GSTRING(comp_class->description));
        }
 
        if (!extended) {
@@ -956,13 +1019,18 @@ static inline void format_component_class(char **buf_ch, bool extended,
 }
 
 static inline void format_component(char **buf_ch, bool extended,
-               const char *prefix, struct bt_component *component)
+               const char *prefix, const struct bt_component *component)
 {
        char tmp_prefix[64];
 
-       BUF_APPEND(", %sname=\"%s\"", PRFIELD(component->name->str));
-       SET_TMP_PREFIX("class-");
-       format_component_class(buf_ch, extended, tmp_prefix, component->class);
+       BUF_APPEND(", %sname=\"%s\"",
+               PRFIELD_GSTRING(component->name));
+
+       if (component->class) {
+               SET_TMP_PREFIX("class-");
+               format_component_class(buf_ch, extended, tmp_prefix,
+                       component->class);
+       }
 
        if (!extended) {
                return;
@@ -980,13 +1048,13 @@ static inline void format_component(char **buf_ch, bool extended,
 }
 
 static inline void format_port(char **buf_ch, bool extended,
-               const char *prefix, struct bt_port *port)
+               const char *prefix, const struct bt_port *port)
 {
        char tmp_prefix[64];
 
        BUF_APPEND(", %stype=%s, %sname=\"%s\"",
                PRFIELD(bt_port_type_string(port->type)),
-               PRFIELD(port->name->str));
+               PRFIELD_GSTRING(port->name));
 
        if (!extended) {
                return;
@@ -999,7 +1067,7 @@ static inline void format_port(char **buf_ch, bool extended,
 }
 
 static inline void format_connection(char **buf_ch, bool extended,
-               const char *prefix, struct bt_connection *connection)
+               const char *prefix, const struct bt_connection *connection)
 {
        char tmp_prefix[64];
 
@@ -1021,7 +1089,7 @@ static inline void format_connection(char **buf_ch, bool extended,
 }
 
 static inline void format_graph(char **buf_ch, bool extended,
-               const char *prefix, struct bt_graph *graph)
+               const char *prefix, const struct bt_graph *graph)
 {
        char tmp_prefix[64];
 
@@ -1054,15 +1122,15 @@ static inline void format_graph(char **buf_ch, bool extended,
 
 static inline void format_notification_iterator(char **buf_ch,
                bool extended, const char *prefix,
-               struct bt_notification_iterator *iterator)
+               const struct bt_notification_iterator *iterator)
 {
        const char *type;
        char tmp_prefix[64];
 
-       if (iterator->type == BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION) {
-               type = "BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION";
-       } else if (iterator->type == BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT) {
-               type = "BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT";
+       if (iterator->type == BT_NOTIFICATION_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT) {
+               type = "BT_NOTIFICATION_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT";
+       } else if (iterator->type == BT_NOTIFICATION_ITERATOR_TYPE_PORT_OUTPUT) {
+               type = "BT_NOTIFICATION_ITERATOR_TYPE_PORT_OUTPUT";
        } else {
                type = "(unknown)";
        }
@@ -1070,41 +1138,47 @@ static inline void format_notification_iterator(char **buf_ch,
        BUF_APPEND(", %stype=%s", PRFIELD(type));
 
        switch (iterator->type) {
-       case BT_NOTIFICATION_ITERATOR_TYPE_PRIVATE_CONNECTION:
+       case BT_NOTIFICATION_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT:
        {
-               struct bt_notification_iterator_private_connection *
-                       iter_priv_conn = (void *) iterator;
+               const struct bt_self_component_port_input_notification_iterator *
+                       port_in_iter = (const void *) iterator;
 
-               if (iter_priv_conn->upstream_component) {
+               if (port_in_iter->upstream_component) {
                        SET_TMP_PREFIX("upstream-comp-");
                        format_component(buf_ch, false, tmp_prefix,
-                               iter_priv_conn->upstream_component);
+                               port_in_iter->upstream_component);
                }
 
-               if (iter_priv_conn->upstream_port) {
+               if (port_in_iter->upstream_port) {
                        SET_TMP_PREFIX("upstream-port-");
                        format_port(buf_ch, false, tmp_prefix,
-                               iter_priv_conn->upstream_port);
+                               port_in_iter->upstream_port);
                }
 
-               if (iter_priv_conn->connection) {
+               if (port_in_iter->connection) {
                        SET_TMP_PREFIX("upstream-conn-");
                        format_connection(buf_ch, false, tmp_prefix,
-                               iter_priv_conn->connection);
+                               port_in_iter->connection);
                }
                break;
        }
-       case BT_NOTIFICATION_ITERATOR_TYPE_OUTPUT_PORT:
+       case BT_NOTIFICATION_ITERATOR_TYPE_PORT_OUTPUT:
        {
-               struct bt_notification_iterator_output_port *iter_output_port =
-                       (void *) iterator;
-
-               SET_TMP_PREFIX("graph-");
-               format_graph(buf_ch, false, tmp_prefix,
-                       iter_output_port->graph);
-               SET_TMP_PREFIX("colander-comp-");
-               format_component(buf_ch, false, tmp_prefix,
-                       iter_output_port->colander);
+               const struct bt_port_output_notification_iterator *port_out_iter =
+                       (const void *) iterator;
+
+               if (port_out_iter->graph) {
+                       SET_TMP_PREFIX("graph-");
+                       format_graph(buf_ch, false, tmp_prefix,
+                               port_out_iter->graph);
+               }
+
+               if (port_out_iter->colander) {
+                       SET_TMP_PREFIX("colander-comp-");
+                       format_component(buf_ch, false, tmp_prefix,
+                               (void *) port_out_iter->colander);
+               }
+
                break;
        }
        default:
@@ -1113,7 +1187,7 @@ static inline void format_notification_iterator(char **buf_ch,
 }
 
 static inline void format_plugin(char **buf_ch, bool extended,
-               const char *prefix, struct bt_plugin *plugin)
+               const char *prefix, const struct bt_plugin *plugin)
 {
        char tmp_prefix[64];
 
@@ -1121,12 +1195,12 @@ static inline void format_plugin(char **buf_ch, bool extended,
 
        if (plugin->info.path_set) {
                BUF_APPEND(", %spath=\"%s\"",
-                       PRFIELD(plugin->info.path->str));
+                       PRFIELD_GSTRING(plugin->info.path));
        }
 
        if (plugin->info.name_set) {
                BUF_APPEND(", %sname=\"%s\"",
-                       PRFIELD(plugin->info.name->str));
+                       PRFIELD_GSTRING(plugin->info.name));
        }
 
        if (!extended) {
@@ -1135,12 +1209,12 @@ static inline void format_plugin(char **buf_ch, bool extended,
 
        if (plugin->info.author_set) {
                BUF_APPEND(", %sauthor=\"%s\"",
-                       PRFIELD(plugin->info.author->str));
+                       PRFIELD_GSTRING(plugin->info.author));
        }
 
        if (plugin->info.license_set) {
                BUF_APPEND(", %slicense=\"%s\"",
-                       PRFIELD(plugin->info.license->str));
+                       PRFIELD_GSTRING(plugin->info.license));
        }
 
        if (plugin->info.version_set) {
@@ -1152,13 +1226,15 @@ static inline void format_plugin(char **buf_ch, bool extended,
                                plugin->info.version.extra->str : "");
        }
 
-       BUF_APPEND(", %sis-frozen=%d, %scomp-class-count=%u",
-               PRFIELD(plugin->frozen),
-               PRFIELD(plugin->comp_classes->len));
+       BUF_APPEND(", %ssrc-comp-class-count=%u, %sflt-comp-class-count=%u, "
+               "%ssink-comp-class-count=%u",
+               PRFIELD(plugin->src_comp_classes->len),
+               PRFIELD(plugin->flt_comp_classes->len),
+               PRFIELD(plugin->sink_comp_classes->len));
 
        if (plugin->spec_data) {
-               struct bt_plugin_so_spec_data *spec_data =
-                       (void *) plugin->spec_data;
+               const struct bt_plugin_so_spec_data *spec_data =
+                       (const void *) plugin->spec_data;
 
                if (spec_data->shared_lib_handle) {
                        SET_TMP_PREFIX("so-handle-");
@@ -1176,7 +1252,7 @@ static inline void handle_conversion_specifier_bt(void *priv_data,
        bool extended = false;
        char prefix[64];
        char *prefix_ch = prefix;
-       void *obj;
+       const void *obj;
 
        /* skip "%!" */
        fmt_ch += 2;
@@ -1247,6 +1323,9 @@ static inline void handle_conversion_specifier_bt(void *priv_data,
        case 't':
                format_trace(buf_ch, extended, prefix, obj);
                break;
+       case 'T':
+               format_trace_class(buf_ch, extended, prefix, obj);
+               break;
        case 'K':
                format_clock_class(buf_ch, extended, prefix, obj);
                break;
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