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Diffstat (limited to 'xorg-server/hw/xquartz/xpr/xprFrame.c')
-rw-r--r--xorg-server/hw/xquartz/xpr/xprFrame.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/xorg-server/hw/xquartz/xpr/xprFrame.c b/xorg-server/hw/xquartz/xpr/xprFrame.c
index 01f1def20..aad375b52 100644
--- a/xorg-server/hw/xquartz/xpr/xprFrame.c
+++ b/xorg-server/hw/xquartz/xpr/xprFrame.c
@@ -49,6 +49,10 @@
#include <pthread.h>
#endif
+#ifdef DEBUG_XP_LOCK_WINDOW
+#include <execinfo.h>
+#endif
+
#define DEFINE_ATOM_HELPER(func, atom_name) \
static Atom func(void) { \
static int generation; \
@@ -376,6 +380,18 @@ xprStartDrawing(RootlessFrameID wid, char **pixelData, int *bytesPerRow)
unsigned int rowbytes[2];
xp_error err;
+#ifdef DEBUG_XP_LOCK_WINDOW
+ void* callstack[128];
+ int i, frames = backtrace(callstack, 128);
+ char** strs = backtrace_symbols(callstack, frames);
+
+ ErrorF("=== LOCK %d ===\n", (int)x_cvt_vptr_to_uint(wid));
+ for (i = 0; i < frames; ++i) {
+ ErrorF(" %s\n", strs[i]);
+ }
+ free(strs);
+#endif
+
err = xp_lock_window(x_cvt_vptr_to_uint(
wid), NULL, NULL, data, rowbytes, NULL);
if (err != Success)
@@ -395,6 +411,18 @@ xprStopDrawing(RootlessFrameID wid, Bool flush)
{
xp_error err;
+#ifdef DEBUG_XP_LOCK_WINDOW
+ void* callstack[128];
+ int i, frames = backtrace(callstack, 128);
+ char** strs = backtrace_symbols(callstack, frames);
+
+ ErrorF("=== UNLOCK %d ===\n", (int)x_cvt_vptr_to_uint(wid));
+ for (i = 0; i < frames; ++i) {
+ ErrorF(" %s\n", strs[i]);
+ }
+ free(strs);
+#endif
+
err = xp_unlock_window(x_cvt_vptr_to_uint(wid), flush);
/* This should be a FatalError, but we started tripping over it. Make it a
* FatalError after http://xquartz.macosforge.org/trac/ticket/482 is fixed.