tdevdraw: avoid deadlock in x11 resize - plan9port - [fork] Plan 9 from user space
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       ---
 (DIR) commit 0be57355f912dbedb76cea1a7a4f9a1deb5bde2b
 (DIR) parent 4241cae2a1ffe7a499ffd9d028e001fea7a678d6
 (HTM) Author: Russ Cox <rsc@golang.org>
       Date:   Wed, 15 Jan 2020 11:59:45 -0500
       
       devdraw: avoid deadlock in x11 resize
       
       Fixes #347.
       
       Diffstat:
         M src/cmd/devdraw/x11-inc.h           |       1 +
         M src/cmd/devdraw/x11-screen.c        |       2 ++
       
       2 files changed, 3 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/src/cmd/devdraw/x11-inc.h b/src/cmd/devdraw/x11-inc.h
       t@@ -17,6 +17,7 @@
        #include <X11/IntrinsicP.h>
        #include <X11/StringDefs.h>
        #ifdef SHOWEVENT
       +#include <stdio.h>
        #include "../rio/showevent/ShowEvent.c"
        #endif
        
 (DIR) diff --git a/src/cmd/devdraw/x11-screen.c b/src/cmd/devdraw/x11-screen.c
       t@@ -1042,7 +1042,9 @@ _xreplacescreenimage(Client *client)
                w->nextscreenpm = pixmap;
                w->screenr = r;
                client->mouserect = r;
       +        xunlock();
                gfx_replacescreenimage(client, m);
       +        xlock();
                return 1;
        }