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XQuartz: Add some verbose logging to debug xp_lock_window being unbalanced

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Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
This commit is contained in:
Jeremy Huddleston Sequoia 2012-09-20 21:11:21 -07:00
parent 25d26875bc
commit f54987de97
1 changed files with 28 additions and 0 deletions
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28
hw/xquartz/xpr/xprFrame.c
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@ -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.