X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fstream.c;h=9d753bd0a7037c042c6218487d0bda0a4d95a0b4;hp=1b4e38ac8fc2b0c9d209b39ac3a559fe9e284f98;hb=d91bc249cd6e3d3a3b8de29d226343d5db279cb3;hpb=d2ec9b88f593043c25370f2998a52d3393d57b63

diff --git a/src/bin/lttng-relayd/stream.c b/src/bin/lttng-relayd/stream.c
index 1b4e38ac8..9d753bd0a 100644
--- a/src/bin/lttng-relayd/stream.c
+++ b/src/bin/lttng-relayd/stream.c
@@ -644,7 +644,9 @@ end:
 		stream_put(stream);
 		stream = NULL;
 	}
-	lttng_trace_chunk_put(current_trace_chunk);
+	if (acquired_reference) {
+		lttng_trace_chunk_put(current_trace_chunk);
+	}
 	return stream;
 
 error_no_alloc:
@@ -921,6 +923,27 @@ void try_stream_close(struct relay_stream *stream)
 	stream->closed = true;
 	/* Relay indexes are only used by the "consumer/sessiond" end. */
 	relay_index_close_all(stream);
+
+	/*
+	 * If we are closed by an application exiting (per-pid buffers),
+	 * we need to put our reference on the stream trace chunk right
+	 * away, because otherwise still holding the reference on the
+	 * trace chunk could allow a viewer stream (which holds a reference
+	 * to the stream) to postpone destroy waiting for the chunk to cease
+	 * to exist endlessly until the viewer is detached.
+	 */
+
+	/* Put stream fd before put chunk. */
+	if (stream->stream_fd) {
+		stream_fd_put(stream->stream_fd);
+		stream->stream_fd = NULL;
+	}
+	if (stream->index_file) {
+		lttng_index_file_put(stream->index_file);
+		stream->index_file = NULL;
+	}
+	lttng_trace_chunk_put(stream->trace_chunk);
+	stream->trace_chunk = NULL;
 	pthread_mutex_unlock(&stream->lock);
 	DBG("Succeeded in closing stream %" PRIu64, stream->stream_handle);
 	stream_put(stream);
@@ -956,7 +979,7 @@ int stream_init_packet(struct relay_stream *stream, size_t packet_size,
 				stream->stream_handle,
 				stream->tracefile_size_current, packet_size,
 				stream->tracefile_current_index, new_file_index);
-		tracefile_array_file_rotate(stream->tfa);
+		tracefile_array_file_rotate(stream->tfa, TRACEFILE_ROTATE_WRITE);
 		stream->tracefile_current_index = new_file_index;
 
 		if (stream->stream_fd) {
@@ -1052,6 +1075,7 @@ int stream_update_index(struct relay_stream *stream, uint64_t net_seq_num,
 	uint64_t data_offset;
 	struct relay_index *index;
 
+	assert(stream->trace_chunk);
 	ASSERT_LOCKED(stream->lock);
 	/* Get data offset because we are about to update the index. */
 	data_offset = htobe64(stream->tracefile_size_current);
@@ -1092,6 +1116,7 @@ int stream_update_index(struct relay_stream *stream, uint64_t net_seq_num,
 
 	ret = relay_index_try_flush(index);
 	if (ret == 0) {
+		tracefile_array_file_rotate(stream->tfa, TRACEFILE_ROTATE_READ);
 		tracefile_array_commit_seq(stream->tfa);
 		stream->index_received_seqcount++;
 		*flushed = true;
@@ -1185,6 +1210,7 @@ int stream_add_index(struct relay_stream *stream,
 	}
 	ret = relay_index_try_flush(index);
 	if (ret == 0) {
+		tracefile_array_file_rotate(stream->tfa, TRACEFILE_ROTATE_READ);
 		tracefile_array_commit_seq(stream->tfa);
 		stream->index_received_seqcount++;
 		stream->pos_after_last_complete_data_index += index->total_size;