* chunk can be used safely.
*/
if ((relay_stream->ongoing_rotation.is_set ||
- relay_session->ongoing_rotation) &&
+ session_has_ongoing_rotation(relay_session)) &&
relay_stream->trace_chunk) {
viewer_stream_trace_chunk = lttng_trace_chunk_copy(
relay_stream->trace_chunk);
* stream, because the chunk can be in an intermediate state
* due to directory renaming.
*/
- if (session->ongoing_rotation) {
+ if (session_has_ongoing_rotation(session)) {
DBG("Relay session %" PRIu64 " rotation ongoing", session_id);
response.status = htobe32(LTTNG_VIEWER_NEW_STREAMS_NO_NEW);
goto send_reply_unlock;
* stream, because the chunk can be in an intermediate state
* due to directory renaming.
*/
- if (session->ongoing_rotation) {
+ if (session_has_ongoing_rotation(session)) {
DBG("Relay session %" PRIu64 " rotation ongoing", session_id);
send_streams = 0;
goto send_reply;
metadata_viewer_stream =
ctf_trace_get_viewer_metadata_stream(ctf_trace);
+ /*
+ * Hold the session lock to protect against concurrent changes
+ * to the chunk files (e.g. rename done by clear), which are
+ * protected by the session ongoing rotation state. Those are
+ * synchronized with the session lock.
+ */
+ pthread_mutex_lock(&rstream->trace->session->lock);
pthread_mutex_lock(&rstream->lock);
/*
goto send_reply;
}
- if (rstream->trace->session->ongoing_rotation) {
+ if (session_has_ongoing_rotation(rstream->trace->session)) {
/* Rotation is ongoing, try again later. */
viewer_index.status = htobe32(LTTNG_VIEWER_INDEX_RETRY);
goto send_reply;
send_reply:
if (rstream) {
pthread_mutex_unlock(&rstream->lock);
+ pthread_mutex_unlock(&rstream->trace->session->lock);
}
if (metadata_viewer_stream) {
error_put:
pthread_mutex_unlock(&rstream->lock);
+ pthread_mutex_unlock(&rstream->trace->session->lock);
if (metadata_viewer_stream) {
viewer_stream_put(metadata_viewer_stream);
}