struct lttng_credentials user;
};
+/* NOTE: Make sure to update lttng_trace_chunk_copy if you modify this. */
struct lttng_trace_chunk {
pthread_mutex_t lock;
struct urcu_ref ref;
/*
* First-level directories created within the trace chunk.
* Elements are of type 'char *'.
+ *
+ * Only used by _owner_ mode chunks.
*/
struct lttng_dynamic_pointer_array top_level_directories;
/* Is contained within an lttng_trace_chunk_registry_element? */
/* A trace chunk is uniquely identified by its (session id, chunk id) tuple. */
struct lttng_trace_chunk_registry_element {
- uint64_t session_id;
struct lttng_trace_chunk chunk;
+ uint64_t session_id;
/* Weak and only set when added. */
struct lttng_trace_chunk_registry *registry;
struct cds_lfht_node trace_chunk_registry_ht_node;
struct cds_lfht *ht;
};
-const char *close_command_names[] = {
+static const
+char *close_command_names[] = {
[LTTNG_TRACE_CHUNK_COMMAND_TYPE_MOVE_TO_COMPLETED] =
"move to completed chunk folder",
};
+static const
chunk_close_command close_command_funcs[] = {
[LTTNG_TRACE_CHUNK_COMMAND_TYPE_MOVE_TO_COMPLETED] =
lttng_trace_chunk_move_to_completed,
{
int ret = 0;
char *new_name= NULL;
- char start_datetime[sizeof("YYYYmmddTHHMMSS+HHMM")] = {};
- char end_datetime_suffix[sizeof("-YYYYmmddTHHMMSS+HHMM")] = {};
+ char start_datetime[ISO8601_STR_LEN] = {};
+ /* Add 1 for a '-' prefix. */
+ char end_datetime_suffix[ISO8601_STR_LEN + 1] = {};
ret = time_to_iso8601_str(
creation_timestamp,
ret = time_to_iso8601_str(
*close_timestamp,
end_datetime_suffix + 1,
- sizeof(end_datetime_suffix));
+ sizeof(end_datetime_suffix) - 1);
if (ret) {
ERR("Failed to format trace chunk end date time");
goto error;
return NULL;
}
+LTTNG_HIDDEN
+struct lttng_trace_chunk *lttng_trace_chunk_copy(
+ struct lttng_trace_chunk *source_chunk)
+{
+ struct lttng_trace_chunk *new_chunk = lttng_trace_chunk_allocate();
+
+ if (!new_chunk) {
+ goto end;
+ }
+
+ pthread_mutex_lock(&source_chunk->lock);
+ /*
+ * A new chunk is always a user; it shall create no new trace
+ * subdirectories.
+ */
+ new_chunk->mode = (typeof(new_chunk->mode)) {
+ .is_set = true,
+ .value = TRACE_CHUNK_MODE_USER,
+ };
+ /*
+ * top_level_directories is not copied as it is never used
+ * by _user_ mode chunks.
+ */
+ /* The new chunk is not part of a registry (yet, at least). */
+ new_chunk->in_registry_element = false;
+ new_chunk->name_overridden = source_chunk->name_overridden;
+ if (source_chunk->name) {
+ new_chunk->name = strdup(source_chunk->name);
+ if (!new_chunk->name) {
+ ERR("Failed to copy source trace chunk name in %s()",
+ __FUNCTION__);
+ goto error_unlock;
+ }
+ }
+ new_chunk->id = source_chunk->id;
+ new_chunk->timestamp_creation = source_chunk->timestamp_creation;
+ new_chunk->timestamp_close = source_chunk->timestamp_close;
+ new_chunk->credentials = source_chunk->credentials;
+ if (source_chunk->session_output_directory.is_set) {
+ if (lttng_directory_handle_copy(
+ &source_chunk->session_output_directory.value,
+ &new_chunk->session_output_directory.value)) {
+ goto error_unlock;
+ } else {
+ new_chunk->session_output_directory.is_set = true;
+ }
+ }
+ if (source_chunk->chunk_directory.is_set) {
+ if (lttng_directory_handle_copy(
+ &source_chunk->chunk_directory.value,
+ &new_chunk->chunk_directory.value)) {
+ goto error_unlock;
+ } else {
+ new_chunk->chunk_directory.is_set = true;
+ }
+ }
+ new_chunk->close_command = source_chunk->close_command;
+ pthread_mutex_unlock(&source_chunk->lock);
+end:
+ return new_chunk;
+error_unlock:
+ pthread_mutex_unlock(&source_chunk->lock);
+ lttng_trace_chunk_put(new_chunk);
+ return NULL;
+}
+
LTTNG_HIDDEN
enum lttng_trace_chunk_status lttng_trace_chunk_get_id(
struct lttng_trace_chunk *chunk, uint64_t *id)
creation_timestamp, NULL);
if (!directory_to_rename) {
ERR("Failed to generate initial trace chunk name while renaming trace chunk");
+ goto end;
}
free_directory_to_rename = true;
}
if (close_command < LTTNG_TRACE_CHUNK_COMMAND_TYPE_MOVE_TO_COMPLETED ||
close_command >= LTTNG_TRACE_CHUNK_COMMAND_TYPE_MAX) {
status = LTTNG_TRACE_CHUNK_STATUS_INVALID_ARGUMENT;
- goto end_unlock;
+ goto end;
}
pthread_mutex_lock(&chunk->lock);
}
LTTNG_OPTIONAL_SET(&chunk->close_command, close_command);
pthread_mutex_unlock(&chunk->lock);
-end_unlock:
+end:
return status;
}
*
* Re-attempt to publish.
*/
- ERR("Attemp to publish a trace chunk to the chunk registry raced with a trace chunk deletion");
+ ERR("Attempt to publish a trace chunk to the chunk registry raced with a trace chunk deletion");
continue;
}
}
session_id, &chunk_id);
}
+LTTNG_HIDDEN
+int lttng_trace_chunk_registry_chunk_exists(
+ const struct lttng_trace_chunk_registry *registry,
+ uint64_t session_id, uint64_t chunk_id, bool *chunk_exists)
+{
+ int ret = 0;
+ const struct lttng_trace_chunk_registry_element target_element = {
+ .chunk.id.is_set = true,
+ .chunk.id.value = chunk_id,
+ .session_id = session_id,
+ };
+ const unsigned long element_hash =
+ lttng_trace_chunk_registry_element_hash(
+ &target_element);
+ struct cds_lfht_node *published_node;
+ struct cds_lfht_iter iter;
+
+ rcu_read_lock();
+ cds_lfht_lookup(registry->ht,
+ element_hash,
+ lttng_trace_chunk_registry_element_match,
+ &target_element,
+ &iter);
+ published_node = cds_lfht_iter_get_node(&iter);
+ if (!published_node) {
+ *chunk_exists = false;
+ goto end;
+ }
+
+ *chunk_exists = !cds_lfht_is_node_deleted(published_node);
+end:
+ rcu_read_unlock();
+ return ret;
+}
+
LTTNG_HIDDEN
struct lttng_trace_chunk *
lttng_trace_chunk_registry_find_anonymous_chunk(
projects / lttng-tools.git / blobdiff