Cleanup: Dead assignments
[babeltrace.git] / src / cli / babeltrace2.c
index 82406a0beeb028e77995b5a0db4d81f43fdb27c6..378fff8a1c9f2e52da6bb6b04c3fd34450109bb9 100644 (file)
@@ -277,43 +277,55 @@ void print_value(FILE *, const bt_value *, size_t);
 static
 void print_value_rec(FILE *, const bt_value *, size_t);
 
-struct print_map_value_data {
-       size_t indent;
-       FILE *fp;
-};
-
 static
-bt_bool print_map_value(const char *key, const bt_value *object,
-               void *data)
+void print_map_value(const char *key, const bt_value *object, FILE *fp,
+               size_t indent)
 {
-       struct print_map_value_data *print_map_value_data = data;
-
-       print_indent(print_map_value_data->fp, print_map_value_data->indent);
-       fprintf(print_map_value_data->fp, "%s: ", key);
+       print_indent(fp, indent);
+       fprintf(fp, "%s: ", key);
        BT_ASSERT(object);
 
        if (bt_value_is_array(object) &&
                        bt_value_array_is_empty(object)) {
-               fprintf(print_map_value_data->fp, "[ ]\n");
-               return true;
+               fprintf(fp, "[ ]\n");
+               goto end;
        }
 
        if (bt_value_is_map(object) &&
                        bt_value_map_is_empty(object)) {
-               fprintf(print_map_value_data->fp, "{ }\n");
-               return true;
+               fprintf(fp, "{ }\n");
+               goto end;
        }
 
        if (bt_value_is_array(object) ||
                        bt_value_is_map(object)) {
-               fprintf(print_map_value_data->fp, "\n");
+               fprintf(fp, "\n");
        }
 
-       print_value_rec(print_map_value_data->fp, object,
-               print_map_value_data->indent + 2);
+       print_value_rec(fp, object, indent + 2);
+
+end:
+       return;
+}
+
+static
+bt_bool collect_map_keys(const char *key, const bt_value *object, void *data)
+{
+       GPtrArray *map_keys = data;
+
+       g_ptr_array_add(map_keys, (gpointer *) key);
+
        return BT_TRUE;
 }
 
+static
+gint g_ptr_array_sort_strings(gconstpointer a, gconstpointer b) {
+       const char *s1 = *((const char **) a);
+       const char *s2 = *((const char **) b);
+
+       return g_strcmp0(s1, s2);
+}
+
 static
 void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
 {
@@ -324,9 +336,10 @@ void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
        const char *str_val;
        int size;
        int i;
+       GPtrArray *map_keys = NULL;
 
        if (!value) {
-               return;
+               goto end;
        }
 
        switch (bt_value_get_type(value)) {
@@ -409,10 +422,8 @@ void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
                break;
        case BT_VALUE_TYPE_MAP:
        {
-               struct print_map_value_data data = {
-                       .indent = indent,
-                       .fp = fp,
-               };
+               guint i;
+               bt_value_map_foreach_entry_const_status foreach_status;
 
                if (bt_value_map_is_empty(value)) {
                        print_indent(fp, indent);
@@ -420,17 +431,52 @@ void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
                        break;
                }
 
-               bt_value_map_foreach_entry_const(value, print_map_value, &data);
+               map_keys = g_ptr_array_new();
+               if (!map_keys) {
+                       BT_CLI_LOGE_APPEND_CAUSE("Failed to allocated on GPtrArray.");
+                       goto end;
+               }
+
+               /*
+                * We want to print the map entries in a stable order.  Collect
+                * all the map's keys in a GPtrArray, sort it, then print the
+                * entries in that order.
+                */
+               foreach_status = bt_value_map_foreach_entry_const(value,
+                       collect_map_keys, map_keys);
+               if (foreach_status != BT_VALUE_MAP_FOREACH_ENTRY_CONST_STATUS_OK) {
+                       BT_CLI_LOGE_APPEND_CAUSE("Failed to iterator on map value.");
+                       goto end;
+               }
+
+               g_ptr_array_sort(map_keys, g_ptr_array_sort_strings);
+
+               for (i = 0; i < map_keys->len; i++) {
+                       const char *map_key = g_ptr_array_index(map_keys, i);
+                       const bt_value *map_value;
+
+                       map_value = bt_value_map_borrow_entry_value_const(value, map_key);
+                       BT_ASSERT(map_value);
+
+                       print_map_value(map_key, map_value, fp, indent);
+               }
+
                break;
        }
        default:
                abort();
        }
-       return;
+
+       goto end;
 
 error:
        BT_LOGE("Error printing value of type %s.",
                bt_common_value_type_string(bt_value_get_type(value)));
+
+end:
+       if (map_keys) {
+               g_ptr_array_free(map_keys, TRUE);
+       }
 }
 
 static
@@ -1951,7 +1997,7 @@ int compute_stream_intersection(const bt_value *streams,
 
                stream_value = bt_value_array_borrow_element_by_index_const(streams, i);
                if (bt_value_get_type(stream_value) != BT_VALUE_TYPE_MAP) {
-                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
+                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-infos` query result: "
                                "expected streams array element to be a map, got %s.",
                                bt_common_value_type_string(bt_value_get_type(stream_value)));
                        goto error;
@@ -1960,13 +2006,13 @@ int compute_stream_intersection(const bt_value *streams,
                range_ns_value = bt_value_map_borrow_entry_value_const(
                        stream_value, "range-ns");
                if (!range_ns_value) {
-                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
+                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-infos` query result: "
                                "missing expected `range-ns` key in stream map.");
                        goto error;
                }
 
                if (bt_value_get_type(range_ns_value) != BT_VALUE_TYPE_MAP) {
-                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
+                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-infos` query result: "
                                "expected `range-ns` entry value of stream map to be a map, got %s.",
                                bt_common_value_type_string(bt_value_get_type(range_ns_value)));
                        goto error;
@@ -1974,13 +2020,13 @@ int compute_stream_intersection(const bt_value *streams,
 
                begin_value = bt_value_map_borrow_entry_value_const(range_ns_value, "begin");
                if (!begin_value) {
-                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
+                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-infos` query result: "
                                "missing expected `begin` key in range-ns map.");
                        goto error;
                }
 
                if (bt_value_get_type(begin_value) != BT_VALUE_TYPE_SIGNED_INTEGER) {
-                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
+                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-infos` query result: "
                                "expected `begin` entry value of range-ns map to be a signed integer, got %s.",
                                bt_common_value_type_string(bt_value_get_type(range_ns_value)));
                        goto error;
@@ -1988,13 +2034,13 @@ int compute_stream_intersection(const bt_value *streams,
 
                end_value = bt_value_map_borrow_entry_value_const(range_ns_value, "end");
                if (!end_value) {
-                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
+                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-infos` query result: "
                                "missing expected `end` key in range-ns map.");
                        goto error;
                }
 
                if (bt_value_get_type(end_value) != BT_VALUE_TYPE_SIGNED_INTEGER) {
-                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
+                       BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-infos` query result: "
                                "expected `end` entry value of range-ns map to be a signed integer, got %s.",
                                bt_common_value_type_string(bt_value_get_type(range_ns_value)));
                        goto error;
@@ -2009,7 +2055,6 @@ int compute_stream_intersection(const bt_value *streams,
                                "range-ns:begin=%" PRId64 ", "
                                "range-ns:end=%" PRId64,
                                begin_ns, end_ns);
-                       ret = -1;
                        goto error;
                }
 
@@ -2049,31 +2094,34 @@ int set_stream_intersections(struct cmd_run_ctx *ctx,
        const bt_component_class *comp_cls =
                bt_component_class_source_as_component_class_const(src_comp_cls);
 
-       ret = query(ctx->cfg, comp_cls, "babeltrace.trace-info",
+       ret = query(ctx->cfg, comp_cls, "babeltrace.trace-infos",
                cfg_comp->params, &query_result,
                &fail_reason);
        if (ret) {
-               BT_LOGD("Component class does not support the `babeltrace.trace-info` query: %s: "
+               BT_CLI_LOGE_APPEND_CAUSE("Failed to execute `babeltrace.trace-infos` query: %s: "
                        "comp-class-name=\"%s\"", fail_reason,
                        bt_component_class_get_name(comp_cls));
                ret = -1;
-               goto error;
+               goto end;
        }
 
        BT_ASSERT(query_result);
 
        if (!bt_value_is_array(query_result)) {
-               BT_LOGD("Unexpected format of `babeltrace.trace-info` query result: "
-                       "component-class-name=%s",
-                       bt_component_class_get_name(comp_cls));
+               BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: expecting result to be an array: "
+                       "component-class-name=%s, actual-type=%s",
+                       bt_component_class_get_name(comp_cls),
+                       bt_common_value_type_string(bt_value_get_type(query_result)));
                ret = -1;
-               goto error;
+               goto end;
        }
 
        trace_count = bt_value_array_get_length(query_result);
        if (trace_count < 0) {
+               BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: result is empty: "
+                       "component-class-name=%s", bt_component_class_get_name(comp_cls));
                ret = -1;
-               goto error;
+               goto end;
        }
 
        for (trace_idx = 0; trace_idx < trace_count; trace_idx++) {
@@ -2083,30 +2131,48 @@ int set_stream_intersections(struct cmd_run_ctx *ctx,
 
                trace_info = bt_value_array_borrow_element_by_index_const(
                        query_result, trace_idx);
-               if (!trace_info || !bt_value_is_map(trace_info)) {
+               BT_ASSERT(trace_info);
+               if (!bt_value_is_map(trace_info)) {
                        ret = -1;
-                       BT_LOGD_STR("Cannot retrieve trace from query result.");
-                       goto error;
+                       BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: expecting element to be a map: "
+                               "component-class-name=%s, actual-type=%s",
+                               bt_component_class_get_name(comp_cls),
+                               bt_common_value_type_string(bt_value_get_type(trace_info)));
+                       goto end;
                }
 
-               stream_infos = bt_value_map_borrow_entry_value_const(trace_info,
-                                                                    "streams");
-               if (!stream_infos || !bt_value_is_array(stream_infos)) {
+               stream_infos = bt_value_map_borrow_entry_value_const(
+                       trace_info, "stream-infos");
+               if (!stream_infos) {
                        ret = -1;
-                       BT_LOGD_STR("Cannot retrieve stream information from trace in query result.");
-                       goto error;
+                       BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: missing `streams` key in trace info map: "
+                               "component-class-name=%s",
+                               bt_component_class_get_name(comp_cls));
+                       goto end;
+               }
+
+               if (!bt_value_is_array(stream_infos)) {
+                       ret = -1;
+                       BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: expecting `streams` entry of trace info map to be an array: "
+                               "component-class-name=%s, actual-type=%s",
+                               bt_component_class_get_name(comp_cls),
+                               bt_common_value_type_string(bt_value_get_type(stream_infos)));
+                       goto end;
                }
 
                stream_count = bt_value_array_get_length(stream_infos);
                if (stream_count < 0) {
                        ret = -1;
-                       goto error;
+                       BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: list of streams is empty: "
+                               "component-class-name=%s",
+                               bt_component_class_get_name(comp_cls));
+                       goto end;
                }
 
                ret = compute_stream_intersection(stream_infos, &trace_intersection);
                if (ret != 0) {
                        BT_CLI_LOGE_APPEND_CAUSE("Failed to compute trace streams intersection.");
-                       goto error;
+                       goto end;
                }
 
                for (stream_idx = 0; stream_idx < stream_count; stream_idx++) {
@@ -2117,14 +2183,14 @@ int set_stream_intersections(struct cmd_run_ctx *ctx,
                                ret = -1;
                                BT_CLI_LOGE_APPEND_CAUSE(
                                        "Cannot allocate memory for port_id structure.");
-                               goto error;
+                               goto end;
                        }
                        port_id->instance_name = strdup(cfg_comp->instance_name->str);
                        if (!port_id->instance_name) {
                                ret = -1;
                                BT_CLI_LOGE_APPEND_CAUSE(
                                        "Cannot allocate memory for port_id component instance name.");
-                               goto error;
+                               goto end;
                        }
 
                        stream_intersection = g_new0(struct trace_range, 1);
@@ -2132,26 +2198,42 @@ int set_stream_intersections(struct cmd_run_ctx *ctx,
                                ret = -1;
                                BT_CLI_LOGE_APPEND_CAUSE(
                                        "Cannot allocate memory for trace_range structure.");
-                               goto error;
+                               goto end;
                        }
 
                        *stream_intersection = trace_intersection;
 
                        stream_info = bt_value_array_borrow_element_by_index_const(
                                stream_infos, stream_idx);
-                       if (!stream_info || !bt_value_is_map(stream_info)) {
+                       BT_ASSERT(stream_info);
+                       if (!bt_value_is_map(stream_info)) {
                                ret = -1;
-                               BT_CLI_LOGE_APPEND_CAUSE(
-                                       "Cannot retrieve stream informations from trace in query result.");
-                               goto error;
+                               BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: "
+                                       "expecting element of stream list to be a map: "
+                                       "component-class-name=%s, actual-type=%s",
+                                       bt_component_class_get_name(comp_cls),
+                                       bt_common_value_type_string(bt_value_get_type(stream_info)));
+                               goto end;
                        }
 
                        port_name = bt_value_map_borrow_entry_value_const(stream_info, "port-name");
-                       if (!port_name || !bt_value_is_string(port_name)) {
+                       if (!port_name) {
                                ret = -1;
-                               BT_CLI_LOGE_APPEND_CAUSE(
-                                       "Cannot retrieve port name in query result.");
-                               goto error;
+                               BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: "
+                                       "missing `port-name` key in stream info map: "
+                                       "component-class-name=%s",
+                                       bt_component_class_get_name(comp_cls));
+                               goto end;
+                       }
+
+                       if (!bt_value_is_string(port_name)) {
+                               ret = -1;
+                               BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-infos` query: "
+                                       "expecting `port-name` entry of stream info map to be a string: "
+                                       "component-class-name=%s, actual-type=%s",
+                                       bt_component_class_get_name(comp_cls),
+                                       bt_common_value_type_string(bt_value_get_type(port_name)));
+                               goto end;
                        }
 
                        port_id->port_name = g_strdup(bt_value_string_get(port_name));
@@ -2159,7 +2241,7 @@ int set_stream_intersections(struct cmd_run_ctx *ctx,
                                ret = -1;
                                BT_CLI_LOGE_APPEND_CAUSE(
                                        "Cannot allocate memory for port_id port_name.");
-                               goto error;
+                               goto end;
                        }
 
                        BT_LOGD("Inserting stream intersection ");
@@ -2171,11 +2253,7 @@ int set_stream_intersections(struct cmd_run_ctx *ctx,
                }
        }
 
-       goto end;
-
-error:
-       BT_CLI_LOGE_APPEND_CAUSE(
-               "Cannot determine stream intersection of trace.");
+       ret = 0;
 
 end:
        bt_value_put_ref(query_result);
@@ -2268,6 +2346,8 @@ int cmd_run_ctx_create_components_from_config_components(
                                cfg_comp->type == BT_COMPONENT_CLASS_TYPE_SOURCE) {
                        ret = set_stream_intersections(ctx, cfg_comp, comp_cls);
                        if (ret) {
+                               BT_CLI_LOGE_APPEND_CAUSE(
+                                       "Cannot determine stream intersection of trace.");
                                goto error;
                        }
                }
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