libvncserver: Make RRE, CoRRE and Ultra encodings thread-safe.

This adds generic before/after encoding buffers to the rfbClient
struct, so there is no need for thread local storage.

Signed-off-by: Christian Beier <dontmind@freeshell.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/rfb/rfb.h b/rfb/rfb.h
index fa530b3..7c15bd8 100644
--- a/rfb/rfb.h
+++ b/rfb/rfb.h
@@ -617,6 +617,13 @@ typedef struct _rfbClientRec {
     MUTEX(sendMutex);
 #endif
 
+  /* buffers to hold pixel data before and after encoding.
+     per-client for thread safety */
+  char *beforeEncBuf;
+  int beforeEncBufSize;
+  char *afterEncBuf;
+  int afterEncBufSize;
+  int afterEncBufLen;
 } rfbClientRec, *rfbClientPtr;
 
 /**