Fix: snapshot with multiple UIDs

[lttng-tools.git] / src / common / sessiond-comm / sessiond-comm.h

diff --git a/src/common/sessiond-comm/sessiond-comm.h b/src/common/sessiond-comm/sessiond-comm.h
index c52a6caa0575272788797786b373b85ba286bce9..b98e4f747299c54c652f5b3dd2a83a6237d19979 100644 (file)
--- a/src/common/sessiond-comm/sessiond-comm.h
+++ b/src/common/sessiond-comm/sessiond-comm.h
@@ -368,6 +368,13 @@ struct lttcomm_consumer_msg {
                        uint64_t session_id_per_pid;    /* Per-pid session ID. */
                        /* Tells the consumer if the stream should be or not monitored. */
                        uint32_t monitor;
+                       /*
+                        * For UST per UID buffers, this is the application UID of the
+                        * channel.  This can be different from the user UID requesting the
+                        * channel creation and used for the rights on the stream file
+                        * because the application can be in the tracing for instance.
+                        */
+                       uint32_t ust_app_uid;
                } LTTNG_PACKED ask_channel;
                struct {
                        uint64_t key;