ctf.fs: bt_ctf_notif_iter_create(): assert() that all medops exist
[babeltrace.git] / formats / ctf / ir / event.c
index 82ed0d947528546d436b3c8566116603f42c103e..c553f7a707eff35e4d4a024a91128a675583215b 100644 (file)
 
 #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-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>
@@ -42,8 +47,6 @@
 
 static
 void bt_ctf_event_destroy(struct bt_object *obj);
-static
-int set_integer_field_value(struct bt_ctf_field *field, uint64_t value);
 
 struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
 {
@@ -61,6 +64,7 @@ struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
        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;
@@ -115,7 +119,6 @@ struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
        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
@@ -151,13 +154,22 @@ struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
         * 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);
@@ -183,6 +195,7 @@ struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
        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);
 
@@ -216,6 +229,7 @@ error:
        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);
@@ -244,40 +258,27 @@ end:
 
 struct bt_ctf_stream *bt_ctf_event_get_stream(struct bt_ctf_event *event)
 {
-       return (struct bt_ctf_stream *) bt_object_get_parent(event);
-}
-
-struct bt_ctf_clock *bt_ctf_event_get_clock(struct bt_ctf_event *event)
-{
-       struct bt_ctf_clock *clock = NULL;
-       struct bt_ctf_event_class *event_class;
-       struct bt_ctf_stream_class *stream_class;
+       struct bt_ctf_stream *stream = NULL;
 
        if (!event) {
                goto end;
        }
 
-       event_class = bt_ctf_event_get_class(event);
-       if (!event_class) {
-               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;
+       /*
+        * 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);
+               }
        }
 
-error_put_stream_class:
-       bt_put(stream_class);
-error_put_event_class:
-       bt_put(event_class);
 end:
-       return clock;
+       return stream;
 }
 
 int bt_ctf_event_set_payload(struct bt_ctf_event *event,
@@ -286,7 +287,7 @@ int bt_ctf_event_set_payload(struct bt_ctf_event *event,
 {
        int ret = 0;
 
-       if (!event || !payload) {
+       if (!event || !payload || event->frozen) {
                ret = -1;
                goto end;
        }
@@ -334,7 +335,7 @@ int bt_ctf_event_set_payload_field(struct bt_ctf_event *event,
        int ret = 0;
        struct bt_ctf_field_type *payload_type = NULL;
 
-       if (!event || !payload) {
+       if (!event || event->frozen) {
                ret = -1;
                goto end;
        }
@@ -351,10 +352,8 @@ int bt_ctf_event_set_payload_field(struct bt_ctf_event *event,
                goto end;
        }
 
-       bt_get(payload);
        bt_put(event->fields_payload);
-       event->fields_payload = payload;
-
+       event->fields_payload = bt_get(payload);
 end:
        bt_put(payload_type);
        return ret;
@@ -417,13 +416,13 @@ int bt_ctf_event_set_header(struct bt_ctf_event *event,
        struct bt_ctf_field_type *field_type = NULL;
        struct bt_ctf_stream_class *stream_class = NULL;
 
-       if (!event || !header) {
+       if (!event || event->frozen) {
                ret = -1;
                goto end;
        }
 
        stream_class = (struct bt_ctf_stream_class *) bt_object_get_parent(
-               event->event_class);
+                       event->event_class);
        /*
         * Ensure the provided header's type matches the one registered to the
         * stream class.
@@ -435,9 +434,8 @@ int bt_ctf_event_set_header(struct bt_ctf_event *event,
                goto end;
        }
 
-       bt_get(header);
        bt_put(event->event_header);
-       event->event_header = header;
+       event->event_header = bt_get(header);
 end:
        bt_put(stream_class);
        bt_put(field_type);
@@ -465,7 +463,7 @@ int bt_ctf_event_set_event_context(struct bt_ctf_event *event,
        int ret = 0;
        struct bt_ctf_field_type *field_type = NULL;
 
-       if (!event || !context) {
+       if (!event || event->frozen) {
                ret = -1;
                goto end;
        }
@@ -477,14 +475,61 @@ int bt_ctf_event_set_event_context(struct bt_ctf_event *event,
                goto end;
        }
 
-       bt_get(context);
        bt_put(event->context_payload);
-       event->context_payload = context;
+       event->context_payload = bt_get(context);
 end:
        bt_put(field_type);
        return ret;
 }
 
+struct bt_ctf_field *bt_ctf_event_get_stream_event_context(
+               struct bt_ctf_event *event)
+{
+       struct bt_ctf_field *stream_event_context = NULL;
+
+       if (!event || !event->stream_event_context) {
+               goto end;
+       }
+
+       stream_event_context = event->stream_event_context;
+end:
+       return bt_get(stream_event_context);
+}
+
+int bt_ctf_event_set_stream_event_context(struct bt_ctf_event *event,
+               struct bt_ctf_field *stream_event_context)
+{
+       int ret = 0;
+       struct bt_ctf_field_type *field_type = NULL;
+       struct bt_ctf_stream_class *stream_class = NULL;
+
+       if (!event || event->frozen) {
+               ret = -1;
+               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);
+
+       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;
+       }
+
+       bt_get(stream_event_context);
+       BT_MOVE(event->stream_event_context, stream_event_context);
+end:
+       BT_PUT(stream_class);
+       bt_put(field_type);
+       return ret;
+}
+
 void bt_ctf_event_get(struct bt_ctf_event *event)
 {
        bt_get(event);
@@ -508,53 +553,47 @@ void bt_ctf_event_destroy(struct bt_object *obj)
                 */
                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);
 }
 
-static
-int set_integer_field_value(struct bt_ctf_field* field, uint64_t value)
+struct bt_ctf_clock_value *bt_ctf_event_get_clock_value(
+               struct bt_ctf_event *event, struct bt_ctf_clock_class *clock_class)
 {
-       int ret = 0;
-       struct bt_ctf_field_type *field_type = NULL;
+       struct bt_ctf_clock_value *clock_value = NULL;
 
-       if (!field) {
-               ret = -1;
+       if (!event || !clock_class) {
                goto end;
        }
 
-       if (!bt_ctf_field_validate(field)) {
-               /* Payload already set, skip! (not an error) */
+       clock_value = g_hash_table_lookup(event->clock_values, clock_class);
+       if (!clock_value) {
                goto end;
        }
 
-       field_type = bt_ctf_field_get_type(field);
-       assert(field_type);
+       bt_get(clock_value);
+end:
+       return clock_value;
+}
+
+int bt_ctf_event_set_clock_value(struct bt_ctf_event *event,
+               struct bt_ctf_clock_value *value)
+{
+       int ret = 0;
 
-       if (bt_ctf_field_type_get_type_id(field_type) !=
-                       BT_CTF_TYPE_ID_INTEGER) {
-               /* Not an integer and the value is unset, error. */
+       if (!event || !value || event->frozen) {
                ret = -1;
                goto end;
        }
 
-       if (bt_ctf_field_type_integer_get_signed(field_type)) {
-               ret = bt_ctf_field_signed_integer_set_value(field, (int64_t) value);
-               if (ret) {
-                       /* Value is out of range, error. */
-                       goto end;
-               }
-       } else {
-               ret = bt_ctf_field_unsigned_integer_set_value(field, value);
-               if (ret) {
-                       /* Value is out of range, error. */
-                       goto end;
-               }
-       }
+       g_hash_table_insert(event->clock_values,
+               bt_ctf_clock_value_get_class(value), bt_get(value));
 end:
-       bt_put(field_type);
        return ret;
 }
 
@@ -563,6 +602,7 @@ 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);
@@ -570,6 +610,19 @@ int bt_ctf_event_validate(struct bt_ctf_event *event)
                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;
@@ -579,6 +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;
 }
 
@@ -607,104 +661,76 @@ end:
        return ret;
 }
 
-BT_HIDDEN
-int bt_ctf_event_populate_event_header(struct bt_ctf_event *event)
+struct bt_ctf_packet *bt_ctf_event_get_packet(struct bt_ctf_event *event)
 {
-       int ret = 0;
-       struct bt_ctf_field *id_field = NULL, *timestamp_field = NULL;
+       struct bt_ctf_packet *packet = NULL;
 
-       if (!event) {
-               ret = -1;
+       if (!event || !event->packet) {
                goto end;
        }
 
-       id_field = bt_ctf_field_structure_get_field(event->event_header, "id");
-       if (id_field) {
-               ret = set_integer_field_value(id_field,
-                       (uint64_t) bt_ctf_event_class_get_id(
-                               event->event_class));
-               if (ret) {
-                       goto end;
-               }
-       }
-
-       timestamp_field = bt_ctf_field_structure_get_field(event->event_header,
-               "timestamp");
-       if (timestamp_field) {
-               struct bt_ctf_field_type *timestamp_field_type =
-                       bt_ctf_field_get_type(timestamp_field);
-               struct bt_ctf_clock *mapped_clock;
-
-               assert(timestamp_field_type);
-               mapped_clock = bt_ctf_field_type_integer_get_mapped_clock(
-                       timestamp_field_type);
-               bt_put(timestamp_field_type);
-               if (mapped_clock) {
-                       int64_t timestamp;
-
-                       ret = bt_ctf_clock_get_time(mapped_clock, &timestamp);
-                       bt_put(mapped_clock);
-                       if (ret) {
-                               goto end;
-                       }
-
-                       ret = set_integer_field_value(timestamp_field,
-                               timestamp);
-                       if (ret) {
-                               goto end;
-                       }
-               }
-       }
+       packet = bt_get(event->packet);
 end:
-       bt_put(id_field);
-       bt_put(timestamp_field);
-       return ret;
+       return packet;
 }
 
-struct bt_ctf_event *bt_ctf_event_copy(struct bt_ctf_event *event)
+int bt_ctf_event_set_packet(struct bt_ctf_event *event,
+               struct bt_ctf_packet *packet)
 {
-       struct bt_ctf_event *copy = NULL;
-
-       if (!event) {
-               goto error;
-       }
+       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;
 
-       copy = g_new0(struct bt_ctf_event, 1);
-       if (!copy) {
-               goto error;
+       if (!event || !packet || event->frozen) {
+               ret = -1;
+               goto end;
        }
 
-       bt_object_init(copy, bt_ctf_event_destroy);
-       copy->event_class = bt_get(event->event_class);
-
-       if (event->event_header) {
-               copy->event_header = bt_ctf_field_copy(event->event_header);
-
-               if (!copy->event_header) {
-                       goto error;
+       /*
+        * 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);
 
-       if (event->context_payload) {
-               copy->context_payload = bt_ctf_field_copy(
-                       event->context_payload);
+               assert(event_stream_class);
+               assert(packet_stream_class);
 
-               if (!copy->context_payload) {
-                       goto error;
+               if (event_stream_class != packet_stream_class) {
+                       ret = -1;
+                       goto end;
                }
        }
 
-       if (event->fields_payload) {
-               copy->fields_payload = bt_ctf_field_copy(event->fields_payload);
+       bt_get(packet);
+       BT_MOVE(event->packet, packet);
 
-               if (!copy->fields_payload) {
-                       goto error;
-               }
-       }
+end:
+       BT_PUT(stream);
+       BT_PUT(event_stream_class);
+       BT_PUT(packet_stream_class);
 
-       return copy;
+       return ret;
+}
 
-error:
-       BT_PUT(copy);
-       return copy;
+BT_HIDDEN
+void bt_ctf_event_freeze(struct bt_ctf_event *event)
+{
+       assert(event);
+       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;
 }
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