lib: make trace IR API const-correct
[babeltrace.git] / plugins / ctf / fs-src / query.c
index 2a587d7b97715790059b8d5da855241f7c68e9c7..6f2017b20688147e52806b96727bc9d011a4026a 100644 (file)
@@ -46,17 +46,14 @@ struct range {
 };
 
 BT_HIDDEN
-struct bt_component_class_query_method_return metadata_info_query(
-               struct bt_component_class *comp_class,
-               struct bt_value *params)
+enum bt_query_status metadata_info_query(
+               struct bt_self_component_class_source *comp_class,
+               const struct bt_value *params,
+               const struct bt_value **user_result)
 {
-       struct bt_component_class_query_method_return query_ret = {
-               .result = NULL,
-               .status = BT_QUERY_STATUS_OK,
-       };
-
-       struct bt_private_value *result = NULL;
-       struct bt_value *path_value = NULL;
+       enum bt_query_status status = BT_QUERY_STATUS_OK;
+       struct bt_value *result = NULL;
+       const struct bt_value *path_value = NULL;
        char *metadata_text = NULL;
        FILE *metadata_fp = NULL;
        GString *g_metadata_text = NULL;
@@ -65,22 +62,21 @@ struct bt_component_class_query_method_return metadata_info_query(
        const char *path;
        bool is_packetized;
 
-       result = bt_private_value_map_create();
+       result = bt_value_map_create();
        if (!result) {
-               query_ret.status = BT_QUERY_STATUS_NOMEM;
+               status = BT_QUERY_STATUS_NOMEM;
                goto error;
        }
 
-       query_ret.result = bt_value_borrow_from_private(result);
        BT_ASSERT(params);
 
        if (!bt_value_is_map(params)) {
                BT_LOGE_STR("Query parameters is not a map value object.");
-               query_ret.status = BT_QUERY_STATUS_INVALID_PARAMS;
+               status = BT_QUERY_STATUS_INVALID_PARAMS;
                goto error;
        }
 
-       path_value = bt_value_map_borrow_entry_value(params, "path");
+       path_value = bt_value_map_borrow_entry_value_const(params, "path");
        path = bt_value_string_get(path_value);
 
        BT_ASSERT(path);
@@ -145,14 +141,14 @@ struct bt_component_class_query_method_return metadata_info_query(
 
        g_string_append(g_metadata_text, metadata_text);
 
-       ret = bt_private_value_map_insert_string_entry(result, "text",
+       ret = bt_value_map_insert_string_entry(result, "text",
                g_metadata_text->str);
        if (ret) {
                BT_LOGE_STR("Cannot insert metadata text into query result.");
                goto error;
        }
 
-       ret = bt_private_value_map_insert_bool_entry(result, "is-packetized",
+       ret = bt_value_map_insert_bool_entry(result, "is-packetized",
                is_packetized);
        if (ret) {
                BT_LOGE_STR("Cannot insert \"is-packetized\" attribute into query result.");
@@ -163,10 +159,10 @@ struct bt_component_class_query_method_return metadata_info_query(
 
 error:
        BT_OBJECT_PUT_REF_AND_RESET(result);
-       query_ret.result = NULL;
+       result = NULL;
 
-       if (query_ret.status >= 0) {
-               query_ret.status = BT_QUERY_STATUS_ERROR;
+       if (status >= 0) {
+               status = BT_QUERY_STATUS_ERROR;
        }
 
 end:
@@ -180,44 +176,45 @@ end:
                fclose(metadata_fp);
        }
 
-       return query_ret;
+       *user_result = result;
+       return status;
 }
 
 static
-int add_range(struct bt_private_value *info, struct range *range,
+int add_range(struct bt_value *info, struct range *range,
                const char *range_name)
 {
        int ret = 0;
        enum bt_value_status status;
-       struct bt_private_value *range_map = NULL;
+       struct bt_value *range_map = NULL;
 
        if (!range->set) {
                /* Not an error. */
                goto end;
        }
 
-       range_map = bt_private_value_map_create();
+       range_map = bt_value_map_create();
        if (!range_map) {
                ret = -1;
                goto end;
        }
 
-       status = bt_private_value_map_insert_integer_entry(range_map, "begin",
+       status = bt_value_map_insert_integer_entry(range_map, "begin",
                        range->begin_ns);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
                goto end;
        }
 
-       status = bt_private_value_map_insert_integer_entry(range_map, "end",
+       status = bt_value_map_insert_integer_entry(range_map, "end",
                        range->end_ns);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
                goto end;
        }
 
-       status = bt_private_value_map_insert_entry(info, range_name,
-               bt_value_borrow_from_private(range_map));
+       status = bt_value_map_insert_entry(info, range_name,
+               range_map);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
                goto end;
@@ -229,16 +226,16 @@ end:
 }
 
 static
-int add_stream_ids(struct bt_private_value *info, struct bt_stream *stream)
+int add_stream_ids(struct bt_value *info, const struct bt_stream *stream)
 {
        int ret = 0;
        int64_t stream_class_id, stream_instance_id;
        enum bt_value_status status;
-       struct bt_stream_class *stream_class = NULL;
+       const struct bt_stream_class *stream_class = NULL;
 
        stream_instance_id = bt_stream_get_id(stream);
        if (stream_instance_id != -1) {
-               status = bt_private_value_map_insert_integer_entry(info, "id",
+               status = bt_value_map_insert_integer_entry(info, "id",
                                stream_instance_id);
                if (status != BT_VALUE_STATUS_OK) {
                        ret = -1;
@@ -246,7 +243,7 @@ int add_stream_ids(struct bt_private_value *info, struct bt_stream *stream)
                }
        }
 
-       stream_class = bt_stream_borrow_class(stream);
+       stream_class = bt_stream_borrow_class_const(stream);
        if (!stream_class) {
                ret = -1;
                goto end;
@@ -258,7 +255,7 @@ int add_stream_ids(struct bt_private_value *info, struct bt_stream *stream)
                goto end;
        }
 
-       status = bt_private_value_map_insert_integer_entry(info, "class-id", stream_class_id);
+       status = bt_value_map_insert_integer_entry(info, "class-id", stream_class_id);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
                goto end;
@@ -270,18 +267,17 @@ end:
 
 static
 int populate_stream_info(struct ctf_fs_ds_file_group *group,
-               struct bt_private_value *group_info,
-               struct range *stream_range)
+               struct bt_value *group_info, struct range *stream_range)
 {
        int ret = 0;
        size_t file_idx;
        enum bt_value_status status;
-       struct bt_private_value *file_paths;
+       struct bt_value *file_paths;
 
        stream_range->begin_ns = INT64_MAX;
        stream_range->end_ns = 0;
 
-       file_paths = bt_private_value_array_create();
+       file_paths = bt_value_array_create();
        if (!file_paths) {
                ret = -1;
                goto end;
@@ -300,7 +296,7 @@ int populate_stream_info(struct ctf_fs_ds_file_group *group,
                        goto end;
                }
 
-               status = bt_private_value_array_append_string_element(file_paths,
+               status = bt_value_array_append_string_element(file_paths,
                                info->path->str);
                if (status != BT_VALUE_STATUS_OK) {
                        ret = -1;
@@ -328,8 +324,8 @@ int populate_stream_info(struct ctf_fs_ds_file_group *group,
                }
        }
 
-       status = bt_private_value_map_insert_entry(group_info, "paths",
-               bt_value_borrow_from_private(file_paths));
+       status = bt_value_map_insert_entry(group_info, "paths",
+               file_paths);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
                goto end;
@@ -346,13 +342,13 @@ end:
 
 static
 int populate_trace_info(const char *trace_path, const char *trace_name,
-               struct bt_private_value *trace_info)
+               struct bt_value *trace_info)
 {
        int ret = 0;
        size_t group_idx;
        struct ctf_fs_trace *trace = NULL;
        enum bt_value_status status;
-       struct bt_private_value *file_groups;
+       struct bt_value *file_groups;
        struct range trace_range = {
                .begin_ns = INT64_MAX,
                .end_ns = 0,
@@ -364,25 +360,25 @@ int populate_trace_info(const char *trace_path, const char *trace_name,
                .set = false,
        };
 
-       file_groups = bt_private_value_array_create();
+       file_groups = bt_value_array_create();
        if (!file_groups) {
                goto end;
        }
 
-       status = bt_private_value_map_insert_string_entry(trace_info, "name",
+       status = bt_value_map_insert_string_entry(trace_info, "name",
                trace_name);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
                goto end;
        }
-       status = bt_private_value_map_insert_string_entry(trace_info, "path",
+       status = bt_value_map_insert_string_entry(trace_info, "path",
                        trace_path);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
                goto end;
        }
 
-       trace = ctf_fs_trace_create(trace_path, trace_name, NULL, NULL);
+       trace = ctf_fs_trace_create(trace_path, trace_name, NULL);
        if (!trace) {
                BT_LOGE("Failed to create fs trace at \'%s\'", trace_path);
                ret = -1;
@@ -399,12 +395,12 @@ int populate_trace_info(const char *trace_path, const char *trace_name,
        /* Find range of all stream groups, and of the trace. */
        for (group_idx = 0; group_idx < trace->ds_file_groups->len;
                        group_idx++) {
-               struct bt_private_value *group_info;
+               struct bt_value *group_info;
                struct range group_range = { .set = false };
                struct ctf_fs_ds_file_group *group = g_ptr_array_index(
                                trace->ds_file_groups, group_idx);
 
-               group_info = bt_private_value_map_create();
+               group_info = bt_value_map_create();
                if (!group_info) {
                        ret = -1;
                        goto end;
@@ -428,9 +424,9 @@ int populate_trace_info(const char *trace_path, const char *trace_name,
                        trace_intersection.end_ns = min(trace_intersection.end_ns,
                                        group_range.end_ns);
                        trace_intersection.set = true;
-                       status = bt_private_value_array_append_element(
+                       status = bt_value_array_append_element(
                                file_groups,
-                               bt_value_borrow_from_private(group_info));
+                               group_info);
                        bt_object_put_ref(group_info);
                        if (status != BT_VALUE_STATUS_OK) {
                                goto end;
@@ -451,8 +447,8 @@ int populate_trace_info(const char *trace_path, const char *trace_name,
                }
        }
 
-       status = bt_private_value_map_insert_entry(trace_info, "streams",
-               bt_value_borrow_from_private(file_groups));
+       status = bt_value_map_insert_entry(trace_info, "streams",
+               file_groups);
        BT_OBJECT_PUT_REF_AND_RESET(file_groups);
        if (status != BT_VALUE_STATUS_OK) {
                ret = -1;
@@ -466,17 +462,14 @@ end:
 }
 
 BT_HIDDEN
-struct bt_component_class_query_method_return trace_info_query(
-               struct bt_component_class *comp_class,
-               struct bt_value *params)
+enum bt_query_status trace_info_query(
+               struct bt_self_component_class_source *comp_class,
+               const struct bt_value *params,
+               const struct bt_value **user_result)
 {
-       struct bt_component_class_query_method_return query_ret = {
-               .result = NULL,
-               .status = BT_QUERY_STATUS_OK,
-       };
-
-       struct bt_private_value *result = NULL;
-       struct bt_value *path_value = NULL;
+       enum bt_query_status status = BT_QUERY_STATUS_OK;
+       struct bt_value *result = NULL;
+       const struct bt_value *path_value = NULL;
        int ret = 0;
        const char *path = NULL;
        GList *trace_paths = NULL;
@@ -489,11 +482,11 @@ struct bt_component_class_query_method_return trace_info_query(
 
        if (!bt_value_is_map(params)) {
                BT_LOGE("Query parameters is not a map value object.");
-               query_ret.status = BT_QUERY_STATUS_INVALID_PARAMS;
+               status = BT_QUERY_STATUS_INVALID_PARAMS;
                goto error;
        }
 
-       path_value = bt_value_map_borrow_entry_value(params, "path");
+       path_value = bt_value_map_borrow_entry_value_const(params, "path");
        path = bt_value_string_get(path_value);
 
        normalized_path = bt_common_normalize_path(path, NULL);
@@ -515,14 +508,12 @@ struct bt_component_class_query_method_return trace_info_query(
                goto error;
        }
 
-       result = bt_private_value_array_create();
+       result = bt_value_array_create();
        if (!result) {
-               query_ret.status = BT_QUERY_STATUS_NOMEM;
+               status = BT_QUERY_STATUS_NOMEM;
                goto error;
        }
 
-       query_ret.result = bt_value_borrow_from_private(result);
-
        /* Iterates over both trace paths and names simultaneously. */
        for (tp_node = trace_paths, tn_node = trace_names; tp_node;
                        tp_node = g_list_next(tp_node),
@@ -530,9 +521,9 @@ struct bt_component_class_query_method_return trace_info_query(
                GString *trace_path = tp_node->data;
                GString *trace_name = tn_node->data;
                enum bt_value_status status;
-               struct bt_private_value *trace_info;
+               struct bt_value *trace_info;
 
-               trace_info = bt_private_value_map_create();
+               trace_info = bt_value_map_create();
                if (!trace_info) {
                        BT_LOGE("Failed to create trace info map.");
                        goto error;
@@ -545,8 +536,7 @@ struct bt_component_class_query_method_return trace_info_query(
                        goto error;
                }
 
-               status = bt_private_value_array_append_element(result,
-                       bt_value_borrow_from_private(trace_info));
+               status = bt_value_array_append_element(result, trace_info);
                bt_object_put_ref(trace_info);
                if (status != BT_VALUE_STATUS_OK) {
                        goto error;
@@ -557,10 +547,10 @@ struct bt_component_class_query_method_return trace_info_query(
 
 error:
        BT_OBJECT_PUT_REF_AND_RESET(result);
-       query_ret.result = NULL;
+       result = NULL;
 
-       if (query_ret.status >= 0) {
-               query_ret.status = BT_QUERY_STATUS_ERROR;
+       if (status >= 0) {
+               status = BT_QUERY_STATUS_ERROR;
        }
 
 end:
@@ -583,6 +573,7 @@ end:
                }
                g_list_free(trace_names);
        }
-       /* "path" becomes invalid with the release of path_value. */
-       return query_ret;
+
+       *user_result = result;
+       return status;
 }
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