fsuipc: add comment

1 files changed, 3 insertions, 0 deletions

diff --git a/ftnoir_protocol_fsuipc/ftnoir_protocol_fsuipc.cpp b/ftnoir_protocol_fsuipc/ftnoir_protocol_fsuipc.cpp
index a7bb4a39..8b92055d 100644..100755
--- a/ftnoir_protocol_fsuipc/ftnoir_protocol_fsuipc.cpp
+++ b/ftnoir_protocol_fsuipc/ftnoir_protocol_fsuipc.cpp
@@ -126,6 +126,9 @@ void FTNoIR_Protocol::pose(const double *headpose ) {
 			//
 			FSUIPC_Process(&result);
 			if (result == FSUIPC_ERR_SENDMSG) {
+                // FSUIPC checks for already open connections and returns FSUIPC_ERR_OPEN in that case
+                // the connection scope is global for the process. this is why above code doesn't
+                // leak resources or have logic errors. see: http://www.purebasic.fr/english/viewtopic.php?t=31112
 				FSUIPC_Close();							//timeout (1 second) so assume FS closed
 			}
 		}