#include <assert.h>
#include "metadata.h"
#include "../common/metadata/decoder.h"
+#include <babeltrace/common-internal.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/ctf-ir/stream.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)
{
- struct bt_value *results = NULL;
+ struct bt_value *result = NULL;
struct bt_value *path_value = NULL;
char *metadata_text = NULL;
FILE *metadata_fp = NULL;
const char *path;
bool is_packetized;
- results = bt_value_map_create();
- if (!results) {
+ result = bt_value_map_create();
+ if (!result) {
goto error;
}
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.");
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");
+ BT_LOGE_STR("Cannot get `path` string parameter.");
goto error;
}
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;
}
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;
}
g_string_append(g_metadata_text, metadata_text);
- ret = bt_value_map_insert_string(results, "text",
+ ret = bt_value_map_insert_string(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(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_PUT(result);
end:
bt_put(path_value);
if (metadata_fp) {
fclose(metadata_fp);
}
- return results;
+ return result;
+}
+
+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(range_map, "begin",
+ range->begin_ns);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_map_insert_integer(range_map, "end",
+ range->end_ns);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_map_insert(info, range_name, range_map);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+end:
+ bt_put(range_map);
+ return ret;
+}
+
+static
+int add_stream_ids(struct bt_value *info, struct bt_ctf_stream *stream)
+{
+ int ret = 0;
+ int64_t stream_class_id, stream_instance_id;
+ enum bt_value_status status;
+ struct bt_ctf_stream_class *stream_class = NULL;
+
+ stream_instance_id = bt_ctf_stream_get_id(stream);
+ if (stream_instance_id != -1) {
+ status = bt_value_map_insert_integer(info, "id",
+ stream_instance_id);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+ }
+
+ stream_class = bt_ctf_stream_get_class(stream);
+ if (!stream_class) {
+ ret = -1;
+ goto end;
+ }
+
+ stream_class_id = bt_ctf_stream_class_get_id(stream_class);
+ if (stream_class_id == -1) {
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_map_insert_integer(info, "class-id", stream_class_id);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+end:
+ bt_put(stream_class);
+ 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(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(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_put(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(trace_info, "name",
+ trace_name);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+ status = bt_value_map_insert_string(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;
+ }
+
+ 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_put(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(file_groups, group_info);
+ bt_put(group_info);
+ if (status != BT_VALUE_STATUS_OK) {
+ goto end;
+ }
+ }
+ }
+
+ ret = add_range(trace_info, &trace_range, "range-ns");
+ if (ret) {
+ goto end;
+ }
+ ret = add_range(trace_info, &trace_intersection,
+ "intersection-range-ns");
+ if (ret) {
+ goto end;
+ }
+
+ status = bt_value_map_insert(trace_info, "streams", file_groups);
+ BT_PUT(file_groups);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+end:
+ bt_put(file_groups);
+ ctf_fs_trace_destroy(trace);
+ return ret;
+}
+
+BT_HIDDEN
+struct bt_value *trace_info_query(struct bt_component_class *comp_class,
+ struct bt_value *params)
+{
+ struct bt_value *trace_infos = NULL;
+ 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;
+
+ if (!bt_value_is_map(params)) {
+ BT_LOGE("Query parameters is not a map value object.");
+ goto error;
+ }
+
+ path_value = bt_value_map_get(params, "path");
+ ret = bt_value_string_get(path_value, &path);
+ if (ret) {
+ BT_LOGE("Cannot get `path` string parameter.");
+ goto error;
+ }
+
+ normalized_path = bt_common_normalize_path(path, NULL);
+ if (!normalized_path) {
+ BT_LOGE("Failed to normalize path: `%s`.", path);
+ goto error;
+ }
+ 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;
+ }
+
+ trace_infos = bt_value_array_create();
+ if (!trace_infos) {
+ 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_put(trace_info);
+ goto error;
+ }
+
+ status = bt_value_array_append(trace_infos, trace_info);
+ bt_put(trace_info);
+ if (status != BT_VALUE_STATUS_OK) {
+ goto error;
+ }
+ }
+
+ goto end;
+
+error:
+ BT_PUT(trace_infos);
+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);
+ }
+ /* "path" becomes invalid with the release of path_value. */
+ bt_put(path_value);
+ return trace_infos;
}
projects / babeltrace.git / blobdiff