lib: make trace IR API const-correct

[babeltrace.git] / lib / trace-ir / event.c

diff --git a/lib/trace-ir/event.c b/lib/trace-ir/event.c
index 7d31a40162b67734511b477ed34ec0113dd124d9..5b4986043552063118936691d02e10310a80d48e 100644 (file)
--- a/lib/trace-ir/event.c
+++ b/lib/trace-ir/event.c
@@ -29,14 +29,15 @@
 #include <babeltrace/trace-ir/fields-internal.h>
 #include <babeltrace/trace-ir/field-classes-internal.h>
 #include <babeltrace/trace-ir/clock-class.h>
-#include <babeltrace/trace-ir/clock-value.h>
+#include <babeltrace/trace-ir/clock-value-const.h>
 #include <babeltrace/trace-ir/clock-value-internal.h>
 #include <babeltrace/trace-ir/clock-class-internal.h>
-#include <babeltrace/trace-ir/private-event.h>
+#include <babeltrace/trace-ir/event-const.h>
 #include <babeltrace/trace-ir/event-internal.h>
 #include <babeltrace/trace-ir/event-class.h>
 #include <babeltrace/trace-ir/event-class-internal.h>
 #include <babeltrace/trace-ir/stream-class.h>
+#include <babeltrace/trace-ir/stream-class-const.h>
 #include <babeltrace/trace-ir/stream-class-internal.h>
 #include <babeltrace/trace-ir/stream-internal.h>
 #include <babeltrace/trace-ir/packet.h>
@@ -51,7 +52,7 @@
 #include <inttypes.h>
 
 BT_HIDDEN
-void _bt_event_set_is_frozen(struct bt_event *event, bool is_frozen)
+void _bt_event_set_is_frozen(const struct bt_event *event, bool is_frozen)
 {
        BT_ASSERT(event);
        BT_LIB_LOGD("Setting event's frozen state: %!+e, is-frozen=%d",
@@ -81,7 +82,7 @@ void _bt_event_set_is_frozen(struct bt_event *event, bool is_frozen)
                        is_frozen);
        }
 
-       event->frozen = is_frozen;
+       ((struct bt_event *) event)->frozen = is_frozen;
        BT_LOGD_STR("Setting event's packet's frozen state.");
        bt_packet_set_is_frozen(event->packet, is_frozen);
 }
@@ -107,7 +108,7 @@ struct bt_field_wrapper *create_event_header_field(
 
        field_wrapper = bt_field_wrapper_create(
                &stream_class->event_header_field_pool,
-               bt_stream_class_borrow_event_header_field_class(stream_class));
+               stream_class->event_header_fc);
        if (!field_wrapper) {
                goto error;
        }
@@ -142,7 +143,7 @@ struct bt_event *bt_event_new(struct bt_event_class *event_class)
        stream_class = bt_event_class_borrow_stream_class(event_class);
        BT_ASSERT(stream_class);
 
-       if (bt_stream_class_borrow_event_header_field_class(stream_class)) {
+       if (stream_class->event_header_fc) {
                event->header_field = create_event_header_field(stream_class);
                if (!event->header_field) {
                        BT_LOGE_STR("Cannot create event header field.");
@@ -150,8 +151,7 @@ struct bt_event *bt_event_new(struct bt_event_class *event_class)
                }
        }
 
-       fc = bt_stream_class_borrow_event_common_context_field_class(
-               stream_class);
+       fc = stream_class->event_common_context_fc;
        if (fc) {
                event->common_context_field = bt_field_create(fc);
                if (!event->common_context_field) {
@@ -160,7 +160,7 @@ struct bt_event *bt_event_new(struct bt_event_class *event_class)
                }
        }
 
-       fc = bt_event_class_borrow_specific_context_field_class(event_class);
+       fc = event_class->specific_context_fc;
        if (fc) {
                event->specific_context_field = bt_field_create(fc);
                if (!event->specific_context_field) {
@@ -169,7 +169,7 @@ struct bt_event *bt_event_new(struct bt_event_class *event_class)
                }
        }
 
-       fc = bt_event_class_borrow_payload_field_class(event_class);
+       fc = event_class->payload_fc;
        if (fc) {
                event->payload_field = bt_field_create(fc);
                if (!event->payload_field) {
@@ -205,22 +205,35 @@ struct bt_event_class *bt_event_borrow_class(struct bt_event *event)
        return event->class;
 }
 
+const struct bt_event_class *bt_event_borrow_class_const(
+               const struct bt_event *event)
+{
+       return bt_event_borrow_class((void *) event);
+}
+
 struct bt_stream *bt_event_borrow_stream(struct bt_event *event)
 {
        BT_ASSERT_PRE_NON_NULL(event, "Event");
        return event->packet ? event->packet->stream : NULL;
 }
 
+const struct bt_stream *bt_event_borrow_stream_const(
+               const struct bt_event *event)
+{
+       return bt_event_borrow_stream((void *) event);
+}
+
 struct bt_field *bt_event_borrow_header_field(struct bt_event *event)
 {
        BT_ASSERT_PRE_NON_NULL(event, "Event");
        return event->header_field ? event->header_field->field : NULL;
 }
 
-struct bt_private_field *bt_private_event_borrow_header_field(
-               struct bt_private_event *event)
+const struct bt_field *bt_event_borrow_header_field_const(
+               const struct bt_event *event)
 {
-       return (void *) bt_event_borrow_header_field((void *) event);
+       BT_ASSERT_PRE_NON_NULL(event, "Event");
+       return event->header_field ? event->header_field->field : NULL;
 }
 
 struct bt_field *bt_event_borrow_common_context_field(struct bt_event *event)
@@ -229,10 +242,11 @@ struct bt_field *bt_event_borrow_common_context_field(struct bt_event *event)
        return event->common_context_field;
 }
 
-struct bt_private_field *bt_private_event_borrow_common_context_field(
-               struct bt_private_event *event)
+const struct bt_field *bt_event_borrow_common_context_field_const(
+               const struct bt_event *event)
 {
-       return (void *) bt_event_borrow_common_context_field((void *) event);
+       BT_ASSERT_PRE_NON_NULL(event, "Event");
+       return event->common_context_field;
 }
 
 struct bt_field *bt_event_borrow_specific_context_field(struct bt_event *event)
@@ -241,10 +255,11 @@ struct bt_field *bt_event_borrow_specific_context_field(struct bt_event *event)
        return event->specific_context_field;
 }
 
-struct bt_private_field *bt_private_event_borrow_specific_context_field(
-               struct bt_private_event *event)
+const struct bt_field *bt_event_borrow_specific_context_field_const(
+               const struct bt_event *event)
 {
-       return (void *) bt_event_borrow_specific_context_field((void *) event);
+       BT_ASSERT_PRE_NON_NULL(event, "Event");
+       return event->specific_context_field;
 }
 
 struct bt_field *bt_event_borrow_payload_field(struct bt_event *event)
@@ -253,10 +268,11 @@ struct bt_field *bt_event_borrow_payload_field(struct bt_event *event)
        return event->payload_field;
 }
 
-struct bt_private_field *bt_private_event_borrow_payload_field(
-               struct bt_private_event *event)
+const struct bt_field *bt_event_borrow_payload_field_const(
+               const struct bt_event *event)
 {
-       return (void *) bt_event_borrow_payload_field((void *) event);
+       BT_ASSERT_PRE_NON_NULL(event, "Event");
+       return event->payload_field;
 }
 
 static
@@ -317,10 +333,9 @@ void bt_event_destroy(struct bt_event *event)
        g_free(event);
 }
 
-void bt_private_event_set_default_clock_value(
-               struct bt_private_event *priv_event, uint64_t value_cycles)
+void bt_event_set_default_clock_value(struct bt_event *event,
+               uint64_t value_cycles)
 {
-       struct bt_event *event = (void *) priv_event;
        struct bt_stream_class *sc;
 
        BT_ASSERT_PRE_NON_NULL(event, "Event");
@@ -336,8 +351,9 @@ void bt_private_event_set_default_clock_value(
                "value=%" PRIu64, event, value_cycles);
 }
 
-enum bt_clock_value_status bt_event_borrow_default_clock_value(
-               struct bt_event *event, struct bt_clock_value **clock_value)
+enum bt_clock_value_status bt_event_borrow_default_clock_value_const(
+               const struct bt_event *event,
+               const struct bt_clock_value **clock_value)
 {
        BT_ASSERT_PRE_NON_NULL(event, "Event");
        BT_ASSERT_PRE_NON_NULL(clock_value, "Clock value (output)");
@@ -351,20 +367,17 @@ struct bt_packet *bt_event_borrow_packet(struct bt_event *event)
        return event->packet;
 }
 
-struct bt_private_packet *bt_private_event_borrow_packet(
-               struct bt_private_event *event)
+const struct bt_packet *bt_event_borrow_packet_const(
+               const struct bt_event *event)
 {
-       return (void *) bt_event_borrow_packet((void *) event);
+       return bt_event_borrow_packet((void *) event);
 }
 
-int bt_private_event_move_header_field(
-               struct bt_private_event *priv_event,
-               struct bt_private_event_header_field *priv_header_field)
+int bt_event_move_header_field(struct bt_event *event,
+               struct bt_event_header_field *header_field)
 {
        struct bt_stream_class *stream_class;
-       struct bt_event *event = (void *) priv_event;
-       struct bt_event_class *event_class = (void *) event_class;
-       struct bt_field_wrapper *field_wrapper = (void *) priv_header_field;
+       struct bt_field_wrapper *field_wrapper = (void *) header_field;
 
        BT_ASSERT_PRE_NON_NULL(event, "Event");
        BT_ASSERT_PRE_NON_NULL(field_wrapper, "Header field");