.request_bytes = medop_request_bytes,
.get_stream = medop_get_stream,
};
+static
+struct ctf_fs_ds_index *ctf_fs_ds_index_create(size_t length)
+{
+ struct ctf_fs_ds_index *index = g_new0(struct ctf_fs_ds_index, 1);
+
+ if (!index) {
+ BT_LOGE_STR("Failed to allocate index");
+ goto error;
+ }
+
+ index->entries = g_array_sized_new(FALSE, TRUE,
+ sizeof(struct ctf_fs_ds_index_entry), length);
+ if (!index->entries) {
+ BT_LOGE("Failed to allocate %zu index entries.", length);
+ goto error;
+ }
+ g_array_set_size(index->entries, length);
+end:
+ return index;
+error:
+ ctf_fs_ds_index_destroy(index);
+ goto end;
+}
static
-int build_index_from_idx_file(struct ctf_fs_ds_file *ds_file)
+struct bt_ctf_clock_class *get_field_mapped_clock_class(
+ struct bt_ctf_field *field)
+{
+ struct bt_ctf_field_type *field_type;
+ struct bt_ctf_clock_class *clock_class = NULL;
+
+ field_type = bt_ctf_field_get_type(field);
+ if (!field_type) {
+ goto end;
+ }
+
+ clock_class = bt_ctf_field_type_integer_get_mapped_clock_class(
+ field_type);
+ if (!clock_class) {
+ goto end;
+ }
+end:
+ bt_put(field_type);
+ return clock_class;
+}
+
+static
+int get_ds_file_packet_bounds_clock_classes(struct ctf_fs_ds_file *ds_file,
+ struct bt_ctf_clock_class **_timestamp_begin_cc,
+ struct bt_ctf_clock_class **_timestamp_end_cc)
+{
+ int ret;
+ struct bt_ctf_field *timestamp_field;
+ struct bt_ctf_field *packet_context_field = NULL;
+ struct bt_ctf_clock_class *timestamp_begin_cc = NULL;
+ struct bt_ctf_clock_class *timestamp_end_cc = NULL;
+
+ ret = ctf_fs_ds_file_get_packet_header_context_fields(ds_file,
+ NULL, &packet_context_field);
+ if (ret || !packet_context_field) {
+ BT_LOGD("Cannot retrieve packet context field of stream \'%s\'",
+ ds_file->file->path->str);
+ ret = -1;
+ goto end;
+ }
+
+ timestamp_field = bt_ctf_field_structure_get_field_by_name(
+ packet_context_field, "timestamp_begin");
+ if (!timestamp_field) {
+ BT_LOGD("Cannot retrieve timestamp_begin field in packet context of stream \'%s\'",
+ ds_file->file->path->str);
+ ret = -1;
+ goto end;
+ }
+
+ timestamp_begin_cc = get_field_mapped_clock_class(timestamp_field);
+ if (!timestamp_begin_cc) {
+ BT_LOGD("Cannot retrieve the clock mapped to timestamp_begin of stream \'%s\'",
+ ds_file->file->path->str);
+ }
+ bt_put(timestamp_field);
+
+ timestamp_field = bt_ctf_field_structure_get_field_by_name(
+ packet_context_field, "timestamp_end");
+ if (!timestamp_field) {
+ BT_LOGD("Cannot retrieve timestamp_end field in packet context of stream \'%s\'",
+ ds_file->file->path->str);
+ ret = -1;
+ goto end;
+ }
+
+ timestamp_end_cc = get_field_mapped_clock_class(timestamp_field);
+ if (!timestamp_end_cc) {
+ BT_LOGD("Cannot retrieve the clock mapped to timestamp_end in stream \'%s\'",
+ ds_file->file->path->str);
+ }
+
+ if (_timestamp_begin_cc) {
+ *_timestamp_begin_cc = bt_get(timestamp_begin_cc);
+ }
+ if (_timestamp_end_cc) {
+ *_timestamp_end_cc = bt_get(timestamp_end_cc);
+ }
+end:
+ bt_put(packet_context_field);
+ bt_put(timestamp_field);
+ bt_put(timestamp_begin_cc);
+ bt_put(timestamp_end_cc);
+ return ret;
+}
+
+static
+int convert_cycles_to_ns(struct bt_ctf_clock_class *clock_class,
+ uint64_t cycles, int64_t *ns)
{
int ret = 0;
+ struct bt_ctf_clock_value *clock_value;
+
+ assert(ns);
+ clock_value = bt_ctf_clock_value_create(clock_class, cycles);
+ if (!clock_value) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_clock_value_get_value_ns_from_epoch(clock_value, ns);
+ if (ret) {
+ goto end;
+ }
+end:
+ bt_put(clock_value);
+ return ret;
+}
+
+static
+struct ctf_fs_ds_index *build_index_from_idx_file(
+ struct ctf_fs_ds_file *ds_file)
+{
+ int ret;
gchar *directory = NULL;
gchar *basename = NULL;
GString *index_basename = NULL;
gchar *index_file_path = NULL;
GMappedFile *mapped_file = NULL;
gsize filesize;
- const struct ctf_packet_index_file_hdr *header;
- const char *mmap_begin, *file_pos;
- struct index_entry *index;
+ const char *mmap_begin = NULL, *file_pos = NULL;
+ const struct ctf_packet_index_file_hdr *header = NULL;
+ struct ctf_fs_ds_index *index = NULL;
+ struct ctf_fs_ds_index_entry *index_entry = NULL;
uint64_t total_packets_size = 0;
size_t file_index_entry_size;
size_t file_entry_count;
size_t i;
+ struct bt_ctf_clock_class *timestamp_begin_cc = NULL;
+ struct bt_ctf_clock_class *timestamp_end_cc = NULL;
+
+ BT_LOGD("Building index from .idx file of stream file %s",
+ ds_file->file->path->str);
+
+ ret = get_ds_file_packet_bounds_clock_classes(ds_file,
+ ×tamp_begin_cc, ×tamp_end_cc);
+ if (ret) {
+ BT_LOGD("Cannot get clock classes of \"timestamp_begin\" and \"timestamp_end\" fields");
+ goto error;
+ }
/* Look for index file in relative path index/name.idx. */
basename = g_path_get_basename(ds_file->file->path->str);
if (!basename) {
- BT_LOGE("Failed to get the basename of datastream file %s",
+ BT_LOGE("Cannot get the basename of datastream file %s",
ds_file->file->path->str);
- ret = -1;
- goto end;
+ goto error;
}
directory = g_path_get_dirname(ds_file->file->path->str);
if (!directory) {
- BT_LOGE("Failed to get dirname of datastream file %s",
+ BT_LOGE("Cannot get dirname of datastream file %s",
ds_file->file->path->str);
- ret = -1;
- goto end;
+ goto error;
}
index_basename = g_string_new(basename);
if (!index_basename) {
- BT_LOGE("Failed to allocate index file basename string");
- ret = -1;
- goto end;
+ BT_LOGE("Cannot allocate index file basename string");
+ goto error;
}
g_string_append(index_basename, ".idx");
index_basename->str, NULL);
mapped_file = g_mapped_file_new(index_file_path, FALSE, NULL);
if (!mapped_file) {
- BT_LOGD("Failed to create new mapped file %s",
+ BT_LOGD("Cannot create new mapped file %s",
index_file_path);
- ret = -1;
- goto end;
+ goto error;
}
filesize = g_mapped_file_get_length(mapped_file);
if (filesize < sizeof(*header)) {
BT_LOGW("Invalid LTTng trace index file: file size < header size");
- ret = -1;
- goto end;
+ goto error;
}
mmap_begin = g_mapped_file_get_contents(mapped_file);
file_pos = g_mapped_file_get_contents(mapped_file) + sizeof(*header);
if (be32toh(header->magic) != CTF_INDEX_MAGIC) {
BT_LOGW("Invalid LTTng trace index: \"magic\" validation failed");
- ret = -1;
- goto end;
+ goto error;
}
file_index_entry_size = be32toh(header->packet_index_len);
file_entry_count = (filesize - sizeof(*header)) / file_index_entry_size;
- if ((filesize - sizeof(*header)) % (file_entry_count * file_index_entry_size)) {
+ if ((filesize - sizeof(*header)) % file_index_entry_size) {
BT_LOGW("Invalid index file size; not a multiple of index entry size");
- ret = -1;
- goto end;
+ goto error;
}
- ds_file->index.entries = g_array_sized_new(FALSE, TRUE,
- sizeof(struct index_entry), file_entry_count);
- if (!ds_file->index.entries) {
- ret = -1;
- goto end;
+ index = ctf_fs_ds_index_create(file_entry_count);
+ if (!index) {
+ goto error;
}
- index = (struct index_entry *) ds_file->index.entries->data;
+
+ index_entry = (struct ctf_fs_ds_index_entry *) &g_array_index(
+ index->entries, struct ctf_fs_ds_index_entry, 0);
for (i = 0; i < file_entry_count; i++) {
struct ctf_packet_index *file_index =
(struct ctf_packet_index *) file_pos;
uint64_t packet_size = be64toh(file_index->packet_size);
if (packet_size % CHAR_BIT) {
- ret = -1;
BT_LOGW("Invalid packet size encountered in index file");
- goto invalid_index;
+ goto error;
}
/* Convert size in bits to bytes. */
packet_size /= CHAR_BIT;
- index->packet_size = packet_size;
+ index_entry->packet_size = packet_size;
- index->offset = be64toh(file_index->offset);
- if (i != 0 && index->offset < (index - 1)->offset) {
+ index_entry->offset = be64toh(file_index->offset);
+ if (i != 0 && index_entry->offset < (index_entry - 1)->offset) {
BT_LOGW("Invalid, non-monotonic, packet offset encountered in index file");
- ret = -1;
- goto invalid_index;
+ goto error;
}
- index->timestamp_begin = be64toh(file_index->timestamp_begin);
- index->timestamp_end = be64toh(file_index->timestamp_end);
- if (index->timestamp_end < index->timestamp_begin) {
+ index_entry->timestamp_begin = be64toh(file_index->timestamp_begin);
+ index_entry->timestamp_end = be64toh(file_index->timestamp_end);
+ if (index_entry->timestamp_end < index_entry->timestamp_begin) {
BT_LOGW("Invalid packet time bounds encountered in index file");
- ret = -1;
- goto invalid_index;
+ goto error;
+ }
+
+ /* Convert the packet's bound to nanoseconds since Epoch. */
+ ret = convert_cycles_to_ns(timestamp_begin_cc,
+ index_entry->timestamp_begin,
+ &index_entry->timestamp_begin_ns);
+ if (ret) {
+ goto error;
+ }
+ ret = convert_cycles_to_ns(timestamp_end_cc,
+ index_entry->timestamp_end,
+ &index_entry->timestamp_end_ns);
+ if (ret) {
+ goto error;
}
total_packets_size += packet_size;
file_pos += file_index_entry_size;
- index++;
+ index_entry++;
}
/* Validate that the index addresses the complete stream. */
if (ds_file->file->size != total_packets_size) {
BT_LOGW("Invalid index; indexed size != stream file size");
- ret = -1;
- goto invalid_index;
+ goto error;
}
end:
g_free(directory);
if (mapped_file) {
g_mapped_file_unref(mapped_file);
}
- return ret;
-invalid_index:
- g_array_free(ds_file->index.entries, TRUE);
+ bt_put(timestamp_begin_cc);
+ bt_put(timestamp_end_cc);
+ return index;
+error:
+ ctf_fs_ds_index_destroy(index);
+ index = NULL;
goto end;
}
-static
-int build_index_from_data_stream_file(struct ctf_fs_ds_file *stream)
-{
- return 0;
-}
-
-static
-int init_stream_index(struct ctf_fs_ds_file *ds_file)
-{
- int ret;
-
- ret = build_index_from_idx_file(ds_file);
- if (!ret) {
- goto end;
- }
-
- ret = build_index_from_data_stream_file(ds_file);
-end:
- return ret;
-}
-
BT_HIDDEN
struct ctf_fs_ds_file *ctf_fs_ds_file_create(
struct ctf_fs_trace *ctf_fs_trace,
- struct bt_ctf_stream *stream, const char *path,
- bool build_index)
+ struct bt_ctf_stream *stream, const char *path)
{
int ret;
const size_t page_size = bt_common_get_page_size();
ds_file->mmap_max_len = page_size * 2048;
- if (build_index) {
- ret = init_stream_index(ds_file);
- if (ret) {
- goto error;
- }
- }
-
goto end;
error:
return ds_file;
}
+BT_HIDDEN
+struct ctf_fs_ds_index *ctf_fs_ds_file_build_index(
+ struct ctf_fs_ds_file *ds_file)
+{
+ return build_index_from_idx_file(ds_file);
+}
+
BT_HIDDEN
void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *ds_file)
{
bt_ctf_notif_iter_destroy(ds_file->notif_iter);
}
- if (ds_file->index.entries) {
- g_array_free(ds_file->index.entries, TRUE);
- }
-
g_free(ds_file);
}
BT_HIDDEN
int ctf_fs_ds_file_get_packet_header_context_fields(
- struct ctf_fs_trace *ctf_fs_trace, const char *path,
+ struct ctf_fs_ds_file *ds_file,
struct bt_ctf_field **packet_header_field,
struct bt_ctf_field **packet_context_field)
{
enum bt_ctf_notif_iter_status notif_iter_status;
- struct ctf_fs_ds_file *ds_file;
int ret = 0;
- ds_file = ctf_fs_ds_file_create(ctf_fs_trace, NULL, path, false);
- if (!ds_file) {
- goto error;
- }
-
+ assert(ds_file);
notif_iter_status = bt_ctf_notif_iter_get_packet_header_context_fields(
ds_file->notif_iter, packet_header_field, packet_context_field);
switch (notif_iter_status) {
}
end:
- ctf_fs_ds_file_destroy(ds_file);
return ret;
}
+
+BT_HIDDEN
+void ctf_fs_ds_index_destroy(struct ctf_fs_ds_index *index)
+{
+ if (!index) {
+ return;
+ }
+
+ if (index->entries) {
+ g_array_free(index->entries, TRUE);
+ }
+ g_free(index);
+}
projects / babeltrace.git / blobdiff