ctf.fs: bt_ctf_notif_iter_create(): assert() that all medops exist
[babeltrace.git] / formats / ctf / ir / event.c
index caea354adcefb5a5c62e68a7f5ef31e951ac5bb1..c553f7a707eff35e4d4a024a91128a675583215b 100644 (file)
  * SOFTWARE.
  */
 
-#include <babeltrace/ctf-writer/event.h>
-#include <babeltrace/ctf-writer/event-types.h>
-#include <babeltrace/ctf-writer/event-fields.h>
-#include <babeltrace/ctf-ir/event-fields-internal.h>
-#include <babeltrace/ctf-ir/event-types-internal.h>
+#include <babeltrace/ctf-ir/fields-internal.h>
+#include <babeltrace/ctf-ir/field-types-internal.h>
+#include <babeltrace/ctf-ir/clock-class.h>
 #include <babeltrace/ctf-ir/event-internal.h>
+#include <babeltrace/ctf-ir/event-class.h>
+#include <babeltrace/ctf-ir/event-class-internal.h>
 #include <babeltrace/ctf-ir/stream-class.h>
-#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/ctf-ir/stream-class-internal.h>
+#include <babeltrace/ctf-ir/stream-internal.h>
+#include <babeltrace/ctf-ir/packet.h>
+#include <babeltrace/ctf-ir/packet-internal.h>
+#include <babeltrace/ctf-ir/trace-internal.h>
+#include <babeltrace/ctf-ir/validation-internal.h>
+#include <babeltrace/ctf-ir/packet-internal.h>
+#include <babeltrace/ctf-ir/utils.h>
+#include <babeltrace/ref.h>
+#include <babeltrace/ctf-ir/attributes-internal.h>
 #include <babeltrace/compiler.h>
 
 static
-void bt_ctf_event_class_destroy(struct bt_ctf_ref *ref);
-static
-void bt_ctf_event_destroy(struct bt_ctf_ref *ref);
+void bt_ctf_event_destroy(struct bt_object *obj);
 
-struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name)
+struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
 {
-       struct bt_ctf_event_class *event_class = NULL;
+       int ret;
+       enum bt_ctf_validation_flag validation_flags =
+               BT_CTF_VALIDATION_FLAG_STREAM |
+               BT_CTF_VALIDATION_FLAG_EVENT;
+       struct bt_ctf_event *event = NULL;
+       struct bt_ctf_trace *trace = NULL;
+       struct bt_ctf_stream_class *stream_class = NULL;
+       struct bt_ctf_field_type *packet_header_type = NULL;
+       struct bt_ctf_field_type *packet_context_type = NULL;
+       struct bt_ctf_field_type *event_header_type = NULL;
+       struct bt_ctf_field_type *stream_event_ctx_type = NULL;
+       struct bt_ctf_field_type *event_context_type = NULL;
+       struct bt_ctf_field_type *event_payload_type = NULL;
+       struct bt_ctf_field *event_header = NULL;
+       struct bt_ctf_field *stream_event_context = NULL;
+       struct bt_ctf_field *event_context = NULL;
+       struct bt_ctf_field *event_payload = NULL;
+       struct bt_value *environment = NULL;
+       struct bt_ctf_validation_output validation_output = { 0 };
+       int trace_valid = 0;
 
-       if (validate_identifier(name)) {
-               goto end;
+       if (!event_class) {
+               goto error;
        }
 
-       event_class = g_new0(struct bt_ctf_event_class, 1);
-       if (!event_class) {
-               goto end;
+       stream_class = bt_ctf_event_class_get_stream_class(event_class);
+
+       /*
+        * We disallow the creation of an event if its event class has not been
+        * associated to a stream class.
+        */
+       if (!stream_class) {
+               goto error;
+       }
+
+       /* A stream class should always have an existing event header type */
+       assert(stream_class->event_header_type);
+
+       /* The event class was frozen when added to its stream class */
+       assert(event_class->frozen);
+
+       /* Validate the trace (if any), the stream class, and the event class */
+       trace = bt_ctf_stream_class_get_trace(stream_class);
+       if (trace) {
+               packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
+               trace_valid = trace->valid;
+               assert(trace_valid);
+               environment = trace->environment;
+       }
+
+       packet_context_type = bt_ctf_stream_class_get_packet_context_type(
+               stream_class);
+       event_header_type = bt_ctf_stream_class_get_event_header_type(
+               stream_class);
+       stream_event_ctx_type = bt_ctf_stream_class_get_event_context_type(
+               stream_class);
+       event_context_type = bt_ctf_event_class_get_context_type(event_class);
+       event_payload_type = bt_ctf_event_class_get_payload_type(event_class);
+       ret = bt_ctf_validate_class_types(environment, packet_header_type,
+               packet_context_type, event_header_type, stream_event_ctx_type,
+               event_context_type, event_payload_type, trace_valid,
+               stream_class->valid, event_class->valid,
+               &validation_output, validation_flags);
+       BT_PUT(packet_header_type);
+       BT_PUT(packet_context_type);
+       BT_PUT(event_header_type);
+       BT_PUT(stream_event_ctx_type);
+       BT_PUT(event_context_type);
+       BT_PUT(event_payload_type);
+       if (ret) {
+               /*
+                * This means something went wrong during the validation
+                * process, not that the objects are invalid.
+                */
+               goto error;
        }
 
-       bt_ctf_ref_init(&event_class->ref_count);
-       event_class->name = g_quark_from_string(name);
-end:
-       return event_class;
+       if ((validation_output.valid_flags & validation_flags) !=
+                       validation_flags) {
+               /* Invalid trace/stream class/event class */
+               goto error;
+       }
+
+       /*
+        * At this point we know the trace (if associated to the stream
+        * class), the stream class, and the event class, with their
+        * current types, are valid. We may proceed with creating
+        * the event.
+        */
+       event = g_new0(struct bt_ctf_event, 1);
+       if (!event) {
+               goto error;
+       }
+
+       bt_object_init(event, bt_ctf_event_destroy);
+
+       /*
+        * event does not share a common ancestor with the event class; it has
+        * to guarantee its existence by holding a reference. This reference
+        * shall be released once the event is associated to a stream since,
+        * from that point, the event and its class will share the same
+        * lifetime.
+        */
+       event->event_class = bt_get(event_class);
+       event->clock_values = g_hash_table_new_full(g_direct_hash,
+                       g_direct_equal, bt_put, bt_put);
+       event_header =
+               bt_ctf_field_create(validation_output.event_header_type);
+       if (!event_header) {
+               goto error;
+       }
+
+       if (validation_output.stream_event_ctx_type) {
+               stream_event_context = bt_ctf_field_create(
+                       validation_output.stream_event_ctx_type);
+               if (!stream_event_context) {
+                       goto error;
+               }
+       }
+
+       if (validation_output.event_context_type) {
+               event_context = bt_ctf_field_create(
+                       validation_output.event_context_type);
+               if (!event_context) {
+                       goto error;
+               }
+       }
+
+       if (validation_output.event_payload_type) {
+               event_payload = bt_ctf_field_create(
+                       validation_output.event_payload_type);
+               if (!event_payload) {
+                       goto error;
+               }
+       }
+
+       /*
+        * At this point all the fields are created, potentially from
+        * validated copies of field types, so that the field types and
+        * fields can be replaced in the trace, stream class,
+        * event class, and created event.
+        */
+       bt_ctf_validation_replace_types(trace, stream_class,
+               event_class, &validation_output, validation_flags);
+       BT_MOVE(event->event_header, event_header);
+       BT_MOVE(event->stream_event_context, stream_event_context);
+       BT_MOVE(event->context_payload, event_context);
+       BT_MOVE(event->fields_payload, event_payload);
+
+       /*
+        * Put what was not moved in bt_ctf_validation_replace_types().
+        */
+       bt_ctf_validation_output_put_types(&validation_output);
+
+       /*
+        * Freeze the stream class since the event header must not be changed
+        * anymore.
+        */
+       bt_ctf_stream_class_freeze(stream_class);
+
+       /*
+        * Mark stream class, and event class as valid since
+        * they're all frozen now.
+        */
+       stream_class->valid = 1;
+       event_class->valid = 1;
+
+       /* Put stuff we borrowed from the event class */
+       BT_PUT(stream_class);
+       BT_PUT(trace);
+
+       return event;
+
+error:
+       bt_ctf_validation_output_put_types(&validation_output);
+       BT_PUT(event);
+       BT_PUT(stream_class);
+       BT_PUT(trace);
+       BT_PUT(event_header);
+       BT_PUT(stream_event_context);
+       BT_PUT(event_context);
+       BT_PUT(event_payload);
+       assert(!packet_header_type);
+       assert(!packet_context_type);
+       assert(!event_header_type);
+       assert(!stream_event_ctx_type);
+       assert(!event_context_type);
+       assert(!event_payload_type);
+
+       return event;
 }
 
-const char *bt_ctf_event_class_get_name(struct bt_ctf_event_class *event_class)
+struct bt_ctf_event_class *bt_ctf_event_get_class(struct bt_ctf_event *event)
 {
-       const char *name = NULL;
+       struct bt_ctf_event_class *event_class = NULL;
 
-       if (!event_class) {
+       if (!event) {
                goto end;
        }
 
-       name = g_quark_to_string(event_class->name);
+       event_class = event->event_class;
+       bt_get(event_class);
 end:
-       return name;
+       return event_class;
 }
 
-int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
+struct bt_ctf_stream *bt_ctf_event_get_stream(struct bt_ctf_event *event)
 {
-       int64_t ret;
+       struct bt_ctf_stream *stream = NULL;
 
-       if (!event_class || !event_class->id_set) {
-               ret = -1;
+       if (!event) {
                goto end;
        }
 
-       ret = (int64_t) event_class->id;
+       /*
+        * If the event has a parent, then this is its (writer) stream.
+        * If the event has no parent, then if it has a packet, this
+        * is its (non-writer) stream.
+        */
+       if (event->base.parent) {
+               stream = (struct bt_ctf_stream *) bt_object_get_parent(event);
+       } else {
+               if (event->packet) {
+                       stream = bt_get(event->packet->stream);
+               }
+       }
+
 end:
-       return ret;
+       return stream;
 }
 
-int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
-               uint32_t id)
+int bt_ctf_event_set_payload(struct bt_ctf_event *event,
+               const char *name,
+               struct bt_ctf_field *payload)
 {
        int ret = 0;
 
-       if (!event_class) {
+       if (!event || !payload || event->frozen) {
                ret = -1;
                goto end;
        }
 
-       if (event_class->stream_class) {
-               /*
-                * We don't allow changing the id if the event class has already
-                * been added to a stream class.
-                */
-               ret = -1;
-               goto end;
-       }
+       if (name) {
+               ret = bt_ctf_field_structure_set_field(event->fields_payload,
+                       name, payload);
+       } else {
+               struct bt_ctf_field_type *payload_type;
+
+               payload_type = bt_ctf_field_get_type(payload);
 
-       event_class->id = id;
-       event_class->id_set = 1;
+               if (bt_ctf_field_type_compare(payload_type,
+                               event->event_class->fields) == 0) {
+                       bt_put(event->fields_payload);
+                       bt_get(payload);
+                       event->fields_payload = payload;
+               } else {
+                       ret = -1;
+               }
+
+               bt_put(payload_type);
+       }
 end:
        return ret;
 }
 
-struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
-               struct bt_ctf_event_class *event_class)
+struct bt_ctf_field *bt_ctf_event_get_payload_field(struct bt_ctf_event *event)
 {
-       struct bt_ctf_stream_class *stream_class = NULL;
+       struct bt_ctf_field *payload = NULL;
 
-       if (!event_class) {
+       if (!event || !event->fields_payload) {
                goto end;
        }
 
-       stream_class = event_class->stream_class;
-       bt_ctf_stream_class_get(stream_class);
+       payload = event->fields_payload;
+       bt_get(payload);
 end:
-       return stream_class;
+       return payload;
 }
 
-int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
-               struct bt_ctf_field_type *type,
-               const char *name)
+int bt_ctf_event_set_payload_field(struct bt_ctf_event *event,
+               struct bt_ctf_field *payload)
 {
        int ret = 0;
+       struct bt_ctf_field_type *payload_type = NULL;
 
-       if (!event_class || !type || validate_identifier(name) ||
-               event_class->frozen) {
+       if (!event || event->frozen) {
                ret = -1;
                goto end;
        }
 
-       if (!event_class->fields) {
-               event_class->fields = bt_ctf_field_type_structure_create();
-               if (!event_class->fields) {
-                       ret = -1;
-                       goto end;
-               }
+       payload_type = bt_ctf_field_get_type(payload);
+       if (!payload_type) {
+               ret = -1;
+               goto end;
        }
 
-       ret = bt_ctf_field_type_structure_add_field(event_class->fields,
-               type, name);
-end:
-       return ret;
-}
-
-int64_t bt_ctf_event_class_get_field_count(
-               struct bt_ctf_event_class *event_class)
-{
-       int64_t ret;
-
-       if (!event_class) {
+       if (bt_ctf_field_type_get_type_id(payload_type) !=
+                       BT_CTF_TYPE_ID_STRUCT) {
                ret = -1;
                goto end;
        }
 
-       ret = bt_ctf_field_type_structure_get_field_count(event_class->fields);
+       bt_put(event->fields_payload);
+       event->fields_payload = bt_get(payload);
 end:
+       bt_put(payload_type);
        return ret;
 }
 
-int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
-               const char **field_name, struct bt_ctf_field_type **field_type,
-               size_t index)
+struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event,
+               const char *name)
 {
-       int ret;
+       struct bt_ctf_field *field = NULL;
 
-       if (!event_class) {
-               ret = -1;
+       if (!event) {
                goto end;
        }
 
-       ret = bt_ctf_field_type_structure_get_field(event_class->fields,
-               field_name, field_type, index);
+       if (name) {
+               field = bt_ctf_field_structure_get_field(event->fields_payload,
+                       name);
+       } else {
+               field = event->fields_payload;
+               bt_get(field);
+       }
 end:
-       return ret;
+       return field;
 }
 
-struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
-               struct bt_ctf_event_class *event_class, const char *name)
+struct bt_ctf_field *bt_ctf_event_get_payload_by_index(
+               struct bt_ctf_event *event, int index)
 {
-       GQuark name_quark;
-       struct bt_ctf_field_type *field_type = NULL;
-
-       if (!event_class || !name) {
-               goto end;
-       }
+       struct bt_ctf_field *field = NULL;
 
-       name_quark = g_quark_try_string(name);
-       if (!name_quark) {
+       if (!event || index < 0) {
                goto end;
        }
 
-       /*
-        * No need to increment field_type's reference count since getting it
-        * from the structure already does.
-        */
-       field_type = bt_ctf_field_type_structure_get_field_type_by_name(
-               event_class->fields, name);
+       field = bt_ctf_field_structure_get_field_by_index(event->fields_payload,
+               index);
 end:
-       return field_type;
+       return field;
 }
 
-void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
+struct bt_ctf_field *bt_ctf_event_get_header(
+               struct bt_ctf_event *event)
 {
-       if (!event_class) {
-               return;
-       }
+       struct bt_ctf_field *header = NULL;
 
-       bt_ctf_ref_get(&event_class->ref_count);
-}
-
-void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
-{
-       if (!event_class) {
-               return;
+       if (!event || !event->event_header) {
+               goto end;
        }
 
-       bt_ctf_ref_put(&event_class->ref_count, bt_ctf_event_class_destroy);
+       header = event->event_header;
+       bt_get(header);
+end:
+       return header;
 }
 
-struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
+int bt_ctf_event_set_header(struct bt_ctf_event *event,
+               struct bt_ctf_field *header)
 {
-       struct bt_ctf_event *event = NULL;
+       int ret = 0;
+       struct bt_ctf_field_type *field_type = NULL;
+       struct bt_ctf_stream_class *stream_class = NULL;
 
-       if (!event_class) {
+       if (!event || event->frozen) {
+               ret = -1;
                goto end;
        }
 
-       event = g_new0(struct bt_ctf_event, 1);
-       if (!event) {
+       stream_class = (struct bt_ctf_stream_class *) bt_object_get_parent(
+                       event->event_class);
+       /*
+        * Ensure the provided header's type matches the one registered to the
+        * stream class.
+        */
+       field_type = bt_ctf_field_get_type(header);
+       if (bt_ctf_field_type_compare(field_type,
+                       stream_class->event_header_type)) {
+               ret = -1;
                goto end;
        }
 
-       bt_ctf_ref_init(&event->ref_count);
-       bt_ctf_event_class_get(event_class);
-       bt_ctf_event_class_freeze(event_class);
-       event->event_class = event_class;
-       event->context_payload = bt_ctf_field_create(event_class->context);
-       event->fields_payload = bt_ctf_field_create(event_class->fields);
+       bt_put(event->event_header);
+       event->event_header = bt_get(header);
 end:
-       return event;
+       bt_put(stream_class);
+       bt_put(field_type);
+       return ret;
 }
 
-struct bt_ctf_event_class *bt_ctf_event_get_class(struct bt_ctf_event *event)
+struct bt_ctf_field *bt_ctf_event_get_event_context(
+               struct bt_ctf_event *event)
 {
-       struct bt_ctf_event_class *event_class = NULL;
+       struct bt_ctf_field *context = NULL;
 
-       if (!event) {
+       if (!event || !event->context_payload) {
                goto end;
        }
 
-       event_class = event->event_class;
-       bt_ctf_event_class_get(event_class);
+       context = event->context_payload;
+       bt_get(context);
 end:
-       return event_class;
+       return context;
 }
 
-struct bt_ctf_clock *bt_ctf_event_get_clock(struct bt_ctf_event *event)
+int bt_ctf_event_set_event_context(struct bt_ctf_event *event,
+               struct bt_ctf_field *context)
 {
-       struct bt_ctf_clock *clock = NULL;
-       struct bt_ctf_event_class *event_class;
-       struct bt_ctf_stream_class *stream_class;
+       int ret = 0;
+       struct bt_ctf_field_type *field_type = NULL;
 
-       if (!event) {
+       if (!event || event->frozen) {
+               ret = -1;
                goto end;
        }
 
-       event_class = bt_ctf_event_get_class(event);
-       if (!event_class) {
+       field_type = bt_ctf_field_get_type(context);
+       if (bt_ctf_field_type_compare(field_type,
+                       event->event_class->context)) {
+               ret = -1;
                goto end;
        }
 
-       stream_class = bt_ctf_event_class_get_stream_class(event_class);
-       if (!stream_class) {
-               goto error_put_event_class;
-       }
-
-       clock = bt_ctf_stream_class_get_clock(stream_class);
-       if (!clock) {
-               goto error_put_stream_class;
-       }
-
-error_put_stream_class:
-       bt_ctf_stream_class_put(stream_class);
-error_put_event_class:
-       bt_ctf_event_class_put(event_class);
+       bt_put(event->context_payload);
+       event->context_payload = bt_get(context);
 end:
-       return clock;
+       bt_put(field_type);
+       return ret;
 }
 
-int bt_ctf_event_set_payload(struct bt_ctf_event *event,
-               const char *name,
-               struct bt_ctf_field *value)
+struct bt_ctf_field *bt_ctf_event_get_stream_event_context(
+               struct bt_ctf_event *event)
 {
-       int ret = 0;
+       struct bt_ctf_field *stream_event_context = NULL;
 
-       if (!event || !value || validate_identifier(name)) {
-               ret = -1;
+       if (!event || !event->stream_event_context) {
                goto end;
        }
 
-       ret = bt_ctf_field_structure_set_field(event->fields_payload,
-               name, value);
+       stream_event_context = event->stream_event_context;
 end:
-       return ret;
+       return bt_get(stream_event_context);
 }
 
-
-struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event,
-               const char *name)
+int bt_ctf_event_set_stream_event_context(struct bt_ctf_event *event,
+               struct bt_ctf_field *stream_event_context)
 {
-       struct bt_ctf_field *field = NULL;
+       int ret = 0;
+       struct bt_ctf_field_type *field_type = NULL;
+       struct bt_ctf_stream_class *stream_class = NULL;
 
-       if (!event || !name) {
+       if (!event || event->frozen) {
+               ret = -1;
                goto end;
        }
 
-       field = bt_ctf_field_structure_get_field(event->fields_payload, name);
-end:
-       return field;
-}
-
-struct bt_ctf_field *bt_ctf_event_get_payload_by_index(
-               struct bt_ctf_event *event, size_t index)
-{
-       struct bt_ctf_field *field = NULL;
+       stream_class = bt_ctf_event_class_get_stream_class(event->event_class);
+       /*
+        * We should not have been able to create the event without associating
+        * the event class to a stream class.
+        */
+       assert(stream_class);
 
-       if (!event) {
+       field_type = bt_ctf_field_get_type(stream_event_context);
+       if (bt_ctf_field_type_compare(field_type,
+                       stream_class->event_context_type)) {
+               ret = -1;
                goto end;
        }
 
-       field = bt_ctf_field_structure_get_field_by_index(event->fields_payload,
-               index);
+       bt_get(stream_event_context);
+       BT_MOVE(event->stream_event_context, stream_event_context);
 end:
-       return field;
+       BT_PUT(stream_class);
+       bt_put(field_type);
+       return ret;
 }
 
 void bt_ctf_event_get(struct bt_ctf_event *event)
 {
-       if (!event) {
-               return;
-       }
-
-       bt_ctf_ref_get(&event->ref_count);
+       bt_get(event);
 }
 
 void bt_ctf_event_put(struct bt_ctf_event *event)
 {
-       if (!event) {
-               return;
-       }
-
-       bt_ctf_ref_put(&event->ref_count, bt_ctf_event_destroy);
-}
-
-static
-void bt_ctf_event_class_destroy(struct bt_ctf_ref *ref)
-{
-       struct bt_ctf_event_class *event_class;
-
-       if (!ref) {
-               return;
-       }
-
-       /*
-        * Don't call put() on the stream class. See comment in
-        * bt_ctf_event_class_set_stream_class for explanation.
-        */
-       event_class = container_of(ref, struct bt_ctf_event_class, ref_count);
-       bt_ctf_field_type_put(event_class->context);
-       bt_ctf_field_type_put(event_class->fields);
-       g_free(event_class);
+       bt_put(event);
 }
 
-static
-void bt_ctf_event_destroy(struct bt_ctf_ref *ref)
+void bt_ctf_event_destroy(struct bt_object *obj)
 {
        struct bt_ctf_event *event;
 
-       if (!ref) {
-               return;
-       }
-
-       event = container_of(ref, struct bt_ctf_event,
-               ref_count);
-       bt_ctf_event_class_put(event->event_class);
-       bt_ctf_field_put(event->context_payload);
-       bt_ctf_field_put(event->fields_payload);
+       event = container_of(obj, struct bt_ctf_event, base);
+       if (!event->base.parent) {
+               /*
+                * Event was keeping a reference to its class since it shared no
+                * common ancestor with it to guarantee they would both have the
+                * same lifetime.
+                */
+               bt_put(event->event_class);
+       }
+       g_hash_table_destroy(event->clock_values);
+       bt_put(event->event_header);
+       bt_put(event->stream_event_context);
+       bt_put(event->context_payload);
+       bt_put(event->fields_payload);
+       bt_put(event->packet);
        g_free(event);
 }
 
-BT_HIDDEN
-void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
+struct bt_ctf_clock_value *bt_ctf_event_get_clock_value(
+               struct bt_ctf_event *event, struct bt_ctf_clock_class *clock_class)
 {
-       assert(event_class);
-       event_class->frozen = 1;
-       bt_ctf_field_type_freeze(event_class->context);
-       bt_ctf_field_type_freeze(event_class->fields);
-}
+       struct bt_ctf_clock_value *clock_value = NULL;
 
-BT_HIDDEN
-int bt_ctf_event_class_set_stream_class(struct bt_ctf_event_class *event_class,
-               struct bt_ctf_stream_class *stream_class)
-{
-       int ret = 0;
-
-       if (!event_class) {
-               ret = -1;
+       if (!event || !clock_class) {
                goto end;
        }
 
-       /* Allow a NULL stream_class to unset the current stream_class */
-       if (stream_class && event_class->stream_class) {
-               ret = -1;
+       clock_value = g_hash_table_lookup(event->clock_values, clock_class);
+       if (!clock_value) {
                goto end;
        }
 
-       event_class->stream_class = stream_class;
-       /*
-        * We don't get() the stream_class since doing so would introduce
-        * a circular ownership between event classes and stream classes.
-        *
-        * A stream class will always unset itself from its events before
-        * being destroyed. This ensures that a user won't get a pointer
-        * to a stale stream class instance from an event class.
-        */
+       bt_get(clock_value);
 end:
-       return ret;
+       return clock_value;
 }
 
-BT_HIDDEN
-int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
-               struct metadata_context *context)
+int bt_ctf_event_set_clock_value(struct bt_ctf_event *event,
+               struct bt_ctf_clock_value *value)
 {
        int ret = 0;
-       int64_t stream_id;
 
-       assert(event_class);
-       assert(context);
-       stream_id = bt_ctf_stream_class_get_id(event_class->stream_class);
-       if (stream_id < 0) {
+       if (!event || !value || event->frozen) {
                ret = -1;
                goto end;
        }
 
-       context->current_indentation_level = 1;
-       g_string_assign(context->field_name, "");
-       g_string_append_printf(context->string, "event {\n\tname = \"%s\";\n\tid = %u;\n\tstream_id = %" PRId64 ";\n",
-               g_quark_to_string(event_class->name),
-               event_class->id,
-               stream_id);
-
-       if (event_class->context) {
-               g_string_append(context->string, "\tcontext := ");
-               ret = bt_ctf_field_type_serialize(event_class->context,
-                       context);
-               if (ret) {
-                       goto end;
-               }
-               g_string_append(context->string, ";\n");
-       }
-
-       if (event_class->fields) {
-               g_string_append(context->string, "\tfields := ");
-               ret = bt_ctf_field_type_serialize(event_class->fields, context);
-               if (ret) {
-                       goto end;
-               }
-               g_string_append(context->string, ";\n");
-       }
-
-       g_string_append(context->string, "};\n\n");
+       g_hash_table_insert(event->clock_values,
+               bt_ctf_clock_value_get_class(value), bt_get(value));
 end:
-       context->current_indentation_level = 0;
        return ret;
 }
 
@@ -490,8 +602,27 @@ int bt_ctf_event_validate(struct bt_ctf_event *event)
 {
        /* Make sure each field's payload has been set */
        int ret;
+       struct bt_ctf_stream_class *stream_class = NULL;
 
        assert(event);
+       ret = bt_ctf_field_validate(event->event_header);
+       if (ret) {
+               goto end;
+       }
+
+       stream_class = bt_ctf_event_class_get_stream_class(event->event_class);
+       /*
+        * We should not have been able to create the event without associating
+        * the event class to a stream class.
+        */
+       assert(stream_class);
+       if (stream_class->event_context_type) {
+               ret = bt_ctf_field_validate(event->stream_event_context);
+               if (ret) {
+                       goto end;
+               }
+       }
+
        ret = bt_ctf_field_validate(event->fields_payload);
        if (ret) {
                goto end;
@@ -501,6 +632,7 @@ int bt_ctf_event_validate(struct bt_ctf_event *event)
                ret = bt_ctf_field_validate(event->context_payload);
        }
 end:
+       bt_put(stream_class);
        return ret;
 }
 
@@ -529,26 +661,76 @@ end:
        return ret;
 }
 
-BT_HIDDEN
-int bt_ctf_event_set_timestamp(struct bt_ctf_event *event,
-               uint64_t timestamp)
+struct bt_ctf_packet *bt_ctf_event_get_packet(struct bt_ctf_event *event)
 {
+       struct bt_ctf_packet *packet = NULL;
+
+       if (!event || !event->packet) {
+               goto end;
+       }
+
+       packet = bt_get(event->packet);
+end:
+       return packet;
+}
+
+int bt_ctf_event_set_packet(struct bt_ctf_event *event,
+               struct bt_ctf_packet *packet)
+{
+       struct bt_ctf_stream_class *event_stream_class = NULL;
+       struct bt_ctf_stream_class *packet_stream_class = NULL;
+       struct bt_ctf_stream *stream = NULL;
        int ret = 0;
 
-       assert(event);
-       if (event->timestamp) {
+       if (!event || !packet || event->frozen) {
                ret = -1;
                goto end;
        }
 
-       event->timestamp = timestamp;
+       /*
+        * Make sure the new packet was created by this event's
+        * stream, if it is set.
+        */
+       stream = bt_ctf_event_get_stream(event);
+       if (stream) {
+               if (packet->stream != stream) {
+                       ret = -1;
+                       goto end;
+               }
+       } else {
+               event_stream_class =
+                       bt_ctf_event_class_get_stream_class(event->event_class);
+               packet_stream_class =
+                       bt_ctf_stream_get_class(packet->stream);
+
+               assert(event_stream_class);
+               assert(packet_stream_class);
+
+               if (event_stream_class != packet_stream_class) {
+                       ret = -1;
+                       goto end;
+               }
+       }
+
+       bt_get(packet);
+       BT_MOVE(event->packet, packet);
+
 end:
+       BT_PUT(stream);
+       BT_PUT(event_stream_class);
+       BT_PUT(packet_stream_class);
+
        return ret;
 }
 
 BT_HIDDEN
-uint64_t bt_ctf_event_get_timestamp(struct bt_ctf_event *event)
+void bt_ctf_event_freeze(struct bt_ctf_event *event)
 {
        assert(event);
-       return event->timestamp;
+       bt_ctf_packet_freeze(event->packet);
+       bt_ctf_field_freeze(event->event_header);
+       bt_ctf_field_freeze(event->stream_event_context);
+       bt_ctf_field_freeze(event->context_payload);
+       bt_ctf_field_freeze(event->fields_payload);
+       event->frozen = 1;
 }
This page took 0.034274 seconds and 4 git commands to generate.