X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=plugins%2Fctf%2Ffs-src%2Fquery.c;h=6f2017b20688147e52806b96727bc9d011a4026a;hb=40f4ba76dd6f9508ca51b6220eaed57632281a07;hp=8fa9b2820bb3b34b4fd9f5f55af1438ebfadb819;hpb=55314f2a6c08045f6f7ca7700a4932628eff1b87;p=babeltrace.git

diff --git a/plugins/ctf/fs-src/query.c b/plugins/ctf/fs-src/query.c
index 8fa9b282..6f2017b2 100644
--- a/plugins/ctf/fs-src/query.c
+++ b/plugins/ctf/fs-src/query.c
@@ -26,22 +26,34 @@
 
 #include "query.h"
 #include <stdbool.h>
-#include <assert.h>
+#include <babeltrace/assert-internal.h>
 #include "metadata.h"
 #include "../common/metadata/decoder.h"
 #include <babeltrace/common-internal.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/babeltrace.h>
+#include "fs.h"
 
 #define BT_LOG_TAG "PLUGIN-CTF-FS-QUERY-SRC"
 #include "logging.h"
 
 #define METADATA_TEXT_SIG	"/* CTF 1.8"
 
+struct range {
+	int64_t begin_ns;
+	int64_t end_ns;
+	bool set;
+};
+
 BT_HIDDEN
-struct bt_value *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_value *results = 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;
@@ -50,30 +62,27 @@ struct bt_value *metadata_info_query(struct bt_component_class *comp_class,
 	const char *path;
 	bool is_packetized;
 
-	results = bt_value_map_create();
-	if (!results) {
+	result = bt_value_map_create();
+	if (!result) {
+		status = BT_QUERY_STATUS_NOMEM;
 		goto error;
 	}
 
+	BT_ASSERT(params);
+
 	if (!bt_value_is_map(params)) {
-		fprintf(stderr,
-			"Query parameters is not a map value object\n");
+		BT_LOGE_STR("Query parameters is not a map value object.");
+		status = BT_QUERY_STATUS_INVALID_PARAMS;
 		goto error;
 	}
 
-	path_value = bt_value_map_get(params, "path");
-	ret = bt_value_string_get(path_value, &path);
-	if (ret) {
-		fprintf(stderr,
-			"Cannot get `path` string parameter\n");
-		goto error;
-	}
+	path_value = bt_value_map_borrow_entry_value_const(params, "path");
+	path = bt_value_string_get(path_value);
 
-	assert(path);
+	BT_ASSERT(path);
 	metadata_fp = ctf_fs_metadata_open_file(path);
 	if (!metadata_fp) {
-		fprintf(stderr,
-			"Cannot open trace at path `%s`\n", path);
+		BT_LOGE("Cannot open trace metadata: path=\"%s\".", path);
 		goto error;
 	}
 
@@ -84,26 +93,35 @@ struct bt_value *metadata_info_query(struct bt_component_class *comp_class,
 		ret = ctf_metadata_decoder_packetized_file_stream_to_buf(
 			metadata_fp, &metadata_text, bo);
 		if (ret) {
-			fprintf(stderr,
-				"Cannot decode packetized metadata file\n");
+			BT_LOGE("Cannot decode packetized metadata file: path=\"%s\"",
+				path);
 			goto error;
 		}
 	} else {
 		long filesize;
 
-		fseek(metadata_fp, 0, SEEK_END);
+		ret = fseek(metadata_fp, 0, SEEK_END);
+		if (ret) {
+			BT_LOGE_ERRNO("Failed to seek to the end of the metadata file",
+				": path=\"%s\"", path);
+			goto error;
+		}
 		filesize = ftell(metadata_fp);
+		if (filesize < 0) {
+			BT_LOGE_ERRNO("Failed to get the current position in the metadata file",
+				": path=\"%s\"", path);
+			goto error;
+		}
 		rewind(metadata_fp);
 		metadata_text = malloc(filesize + 1);
 		if (!metadata_text) {
-			fprintf(stderr,
-				"Cannot allocate buffer for metadata text\n");
+			BT_LOGE_STR("Cannot allocate buffer for metadata text.");
 			goto error;
 		}
 
 		if (fread(metadata_text, filesize, 1, metadata_fp) != 1) {
-			fprintf(stderr,
-				"Cannot read metadata file\n");
+			BT_LOGE_ERRNO("Cannot read metadata file", ": path=\"%s\"",
+				path);
 			goto error;
 		}
 
@@ -123,27 +141,31 @@ struct bt_value *metadata_info_query(struct bt_component_class *comp_class,
 
 	g_string_append(g_metadata_text, metadata_text);
 
-	ret = bt_value_map_insert_string(results, "text",
+	ret = bt_value_map_insert_string_entry(result, "text",
 		g_metadata_text->str);
 	if (ret) {
-		fprintf(stderr, "Cannot insert metadata text into results\n");
+		BT_LOGE_STR("Cannot insert metadata text into query result.");
 		goto error;
 	}
 
-	ret = bt_value_map_insert_bool(results, "is-packetized",
+	ret = bt_value_map_insert_bool_entry(result, "is-packetized",
 		is_packetized);
 	if (ret) {
-		fprintf(stderr, "Cannot insert is packetized into results\n");
+		BT_LOGE_STR("Cannot insert \"is-packetized\" attribute into query result.");
 		goto error;
 	}
 
 	goto end;
 
 error:
-	BT_PUT(results);
+	BT_OBJECT_PUT_REF_AND_RESET(result);
+	result = NULL;
+
+	if (status >= 0) {
+		status = BT_QUERY_STATUS_ERROR;
+	}
 
 end:
-	bt_put(path_value);
 	free(metadata_text);
 
 	if (g_metadata_text) {
@@ -153,5 +175,405 @@ end:
 	if (metadata_fp) {
 		fclose(metadata_fp);
 	}
-	return results;
+
+	*user_result = result;
+	return status;
+}
+
+static
+int add_range(struct bt_value *info, struct range *range,
+		const char *range_name)
+{
+	int ret = 0;
+	enum bt_value_status status;
+	struct bt_value *range_map = NULL;
+
+	if (!range->set) {
+		/* Not an error. */
+		goto end;
+	}
+
+	range_map = bt_value_map_create();
+	if (!range_map) {
+		ret = -1;
+		goto end;
+	}
+
+	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_value_map_insert_integer_entry(range_map, "end",
+			range->end_ns);
+	if (status != BT_VALUE_STATUS_OK) {
+		ret = -1;
+		goto end;
+	}
+
+	status = bt_value_map_insert_entry(info, range_name,
+		range_map);
+	if (status != BT_VALUE_STATUS_OK) {
+		ret = -1;
+		goto end;
+	}
+
+end:
+	bt_object_put_ref(range_map);
+	return ret;
+}
+
+static
+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;
+	const struct bt_stream_class *stream_class = NULL;
+
+	stream_instance_id = bt_stream_get_id(stream);
+	if (stream_instance_id != -1) {
+		status = bt_value_map_insert_integer_entry(info, "id",
+				stream_instance_id);
+		if (status != BT_VALUE_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+	}
+
+	stream_class = bt_stream_borrow_class_const(stream);
+	if (!stream_class) {
+		ret = -1;
+		goto end;
+	}
+
+	stream_class_id = bt_stream_class_get_id(stream_class);
+	if (stream_class_id == -1) {
+		ret = -1;
+		goto end;
+	}
+
+	status = bt_value_map_insert_integer_entry(info, "class-id", stream_class_id);
+	if (status != BT_VALUE_STATUS_OK) {
+		ret = -1;
+		goto end;
+	}
+
+end:
+	return ret;
+}
+
+static
+int populate_stream_info(struct ctf_fs_ds_file_group *group,
+		struct bt_value *group_info, struct range *stream_range)
+{
+	int ret = 0;
+	size_t file_idx;
+	enum bt_value_status status;
+	struct bt_value *file_paths;
+
+	stream_range->begin_ns = INT64_MAX;
+	stream_range->end_ns = 0;
+
+	file_paths = bt_value_array_create();
+	if (!file_paths) {
+		ret = -1;
+		goto end;
+	}
+
+	for (file_idx = 0; file_idx < group->ds_file_infos->len; file_idx++) {
+		int64_t file_begin_epoch, file_end_epoch;
+		struct ctf_fs_ds_file_info *info =
+				g_ptr_array_index(group->ds_file_infos,
+					file_idx);
+
+		if (!info->index || info->index->entries->len == 0) {
+			BT_LOGW("Cannot determine range of unindexed stream file \'%s\'",
+				info->path->str);
+			ret = -1;
+			goto end;
+		}
+
+		status = bt_value_array_append_string_element(file_paths,
+				info->path->str);
+		if (status != BT_VALUE_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+
+		/*
+		 * file range is from timestamp_begin of the first entry to the
+		 * timestamp_end of the last entry.
+		 */
+		file_begin_epoch = ((struct ctf_fs_ds_index_entry *) &g_array_index(info->index->entries,
+				struct ctf_fs_ds_index_entry, 0))->timestamp_begin_ns;
+		file_end_epoch = ((struct ctf_fs_ds_index_entry *) &g_array_index(info->index->entries,
+				struct ctf_fs_ds_index_entry, info->index->entries->len - 1))->timestamp_end_ns;
+
+		stream_range->begin_ns = min(stream_range->begin_ns, file_begin_epoch);
+		stream_range->end_ns = max(stream_range->end_ns, file_end_epoch);
+		stream_range->set = true;
+	}
+
+	if (stream_range->set) {
+		ret = add_range(group_info, stream_range, "range-ns");
+		if (ret) {
+			goto end;
+		}
+	}
+
+	status = bt_value_map_insert_entry(group_info, "paths",
+		file_paths);
+	if (status != BT_VALUE_STATUS_OK) {
+		ret = -1;
+		goto end;
+	}
+
+	ret = add_stream_ids(group_info, group->stream);
+	if (ret) {
+		goto end;
+	}
+end:
+	bt_object_put_ref(file_paths);
+	return ret;
+}
+
+static
+int populate_trace_info(const char *trace_path, const char *trace_name,
+		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_value *file_groups;
+	struct range trace_range = {
+		.begin_ns = INT64_MAX,
+		.end_ns = 0,
+		.set = false,
+	};
+	struct range trace_intersection = {
+		.begin_ns = 0,
+		.end_ns = INT64_MAX,
+		.set = false,
+	};
+
+	file_groups = bt_value_array_create();
+	if (!file_groups) {
+		goto end;
+	}
+
+	status = bt_value_map_insert_string_entry(trace_info, "name",
+		trace_name);
+	if (status != BT_VALUE_STATUS_OK) {
+		ret = -1;
+		goto end;
+	}
+	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);
+	if (!trace) {
+		BT_LOGE("Failed to create fs trace at \'%s\'", trace_path);
+		ret = -1;
+		goto end;
+	}
+
+	BT_ASSERT(trace->ds_file_groups);
+	/* Add trace range info only if it contains streams. */
+	if (trace->ds_file_groups->len == 0) {
+		ret = -1;
+		goto end;
+	}
+
+	/* 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_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_value_map_create();
+		if (!group_info) {
+			ret = -1;
+			goto end;
+		}
+
+		ret = populate_stream_info(group, group_info, &group_range);
+		if (ret) {
+			bt_object_put_ref(group_info);
+			goto end;
+		}
+
+		if (group_range.set) {
+			trace_range.begin_ns = min(trace_range.begin_ns,
+					group_range.begin_ns);
+			trace_range.end_ns = max(trace_range.end_ns,
+					group_range.end_ns);
+			trace_range.set = true;
+
+			trace_intersection.begin_ns = max(trace_intersection.begin_ns,
+					group_range.begin_ns);
+			trace_intersection.end_ns = min(trace_intersection.end_ns,
+					group_range.end_ns);
+			trace_intersection.set = true;
+			status = bt_value_array_append_element(
+				file_groups,
+				group_info);
+			bt_object_put_ref(group_info);
+			if (status != BT_VALUE_STATUS_OK) {
+				goto end;
+			}
+		}
+	}
+
+	ret = add_range(trace_info, &trace_range, "range-ns");
+	if (ret) {
+		goto end;
+	}
+
+	if (trace_intersection.begin_ns < trace_intersection.end_ns) {
+		ret = add_range(trace_info, &trace_intersection,
+				"intersection-range-ns");
+		if (ret) {
+			goto end;
+		}
+	}
+
+	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;
+		goto end;
+	}
+
+end:
+	bt_object_put_ref(file_groups);
+	ctf_fs_trace_destroy(trace);
+	return ret;
+}
+
+BT_HIDDEN
+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)
+{
+	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;
+	GList *trace_names = NULL;
+	GList *tp_node = NULL;
+	GList *tn_node = NULL;
+	GString *normalized_path = NULL;
+
+	BT_ASSERT(params);
+
+	if (!bt_value_is_map(params)) {
+		BT_LOGE("Query parameters is not a map value object.");
+		status = BT_QUERY_STATUS_INVALID_PARAMS;
+		goto error;
+	}
+
+	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);
+	if (!normalized_path) {
+		BT_LOGE("Failed to normalize path: `%s`.", path);
+		goto error;
+	}
+	BT_ASSERT(path);
+
+	ret = ctf_fs_find_traces(&trace_paths, normalized_path->str);
+	if (ret) {
+		goto error;
+	}
+
+	trace_names = ctf_fs_create_trace_names(trace_paths,
+		normalized_path->str);
+	if (!trace_names) {
+		BT_LOGE("Cannot create trace names from trace paths.");
+		goto error;
+	}
+
+	result = bt_value_array_create();
+	if (!result) {
+		status = BT_QUERY_STATUS_NOMEM;
+		goto error;
+	}
+
+	/* 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),
+			tn_node = g_list_next(tn_node)) {
+		GString *trace_path = tp_node->data;
+		GString *trace_name = tn_node->data;
+		enum bt_value_status status;
+		struct bt_value *trace_info;
+
+		trace_info = bt_value_map_create();
+		if (!trace_info) {
+			BT_LOGE("Failed to create trace info map.");
+			goto error;
+		}
+
+		ret = populate_trace_info(trace_path->str, trace_name->str,
+			trace_info);
+		if (ret) {
+			bt_object_put_ref(trace_info);
+			goto error;
+		}
+
+		status = bt_value_array_append_element(result, trace_info);
+		bt_object_put_ref(trace_info);
+		if (status != BT_VALUE_STATUS_OK) {
+			goto error;
+		}
+	}
+
+	goto end;
+
+error:
+	BT_OBJECT_PUT_REF_AND_RESET(result);
+	result = NULL;
+
+	if (status >= 0) {
+		status = BT_QUERY_STATUS_ERROR;
+	}
+
+end:
+	if (normalized_path) {
+		g_string_free(normalized_path, TRUE);
+	}
+	if (trace_paths) {
+		for (tp_node = trace_paths; tp_node; tp_node = g_list_next(tp_node)) {
+			if (tp_node->data) {
+				g_string_free(tp_node->data, TRUE);
+			}
+		}
+		g_list_free(trace_paths);
+	}
+	if (trace_names) {
+		for (tn_node = trace_names; tn_node; tn_node = g_list_next(tn_node)) {
+			if (tn_node->data) {
+				g_string_free(tn_node->data, TRUE);
+			}
+		}
+		g_list_free(trace_names);
+	}
+
+	*user_result = result;
+	return status;
 }