relayd: share the same output directory handle accross sessions

[lttng-tools.git] / src / common / trace-chunk.c

diff --git a/src/common/trace-chunk.c b/src/common/trace-chunk.c
index cd81909ffc70ee6a36e464ae2d134e2dfbdd9cc9..7407f38f391ce60351d9746bfa0813a2429679be 100644 (file)
--- a/src/common/trace-chunk.c
+++ b/src/common/trace-chunk.c
@@ -983,6 +983,31 @@ end:
        return status;
 }
 
+LTTNG_HIDDEN
+enum lttng_trace_chunk_status
+lttng_trace_chunk_get_session_output_directory_handle(
+               struct lttng_trace_chunk *chunk,
+               struct lttng_directory_handle **handle)
+{
+       enum lttng_trace_chunk_status status = LTTNG_TRACE_CHUNK_STATUS_OK;
+
+       pthread_mutex_lock(&chunk->lock);
+       if (!chunk->session_output_directory) {
+               status = LTTNG_TRACE_CHUNK_STATUS_NONE;
+               *handle = NULL;
+               goto end;
+       } else {
+               const bool reference_acquired = lttng_directory_handle_get(
+                               chunk->session_output_directory);
+
+               assert(reference_acquired);
+               *handle = chunk->session_output_directory;
+       }
+end:
+       pthread_mutex_unlock(&chunk->lock);
+       return status;
+}
+
 LTTNG_HIDDEN
 enum lttng_trace_chunk_status lttng_trace_chunk_borrow_chunk_directory_handle(
                struct lttng_trace_chunk *chunk,