Vsevolod Novikov <[email protected]> writes:
> Hi,
>
> I would like to use the cairo library in the Airplay SDK environment
> (www.airplaysdk.com). The SDK environment is now single-thread, so I don't
> need to have thread-specific data (TLS option). Moreover, thread-aware code
> in the pixman library causes compilation and/or run-time problems.
>
> It would be useful to have a configuration option to switch using
> TLS off at all for pixman library in such environment, as it is made
> in applied patch (the similar code in the cairo library is present,
> but undocumented. I am using CAIRO_NO_MUTEX for the purpose).
It's probably reasonable to do this given that cairo has the
corresponding feature, but I'd prefer to have to #error in
pixman-compiler.h extended to say something similar to the one in
cairo: That you can defined PIXMAN_NO_TLS, but pixman won't work with
multiple threads.
Thanks,
Soren
The patch, for reference:
--- pixman-compiler.h.orig 2010-04-18 14:40:03.000000000 +0400
+++ pixman-compiler.h 2010-04-18 14:40:03.000000000 +0400
@@ -70,7 +70,14 @@
#endif
/* TLS */
-#if defined(TOOLCHAIN_SUPPORTS__THREAD)
+#if defined(PIXMAN_NO_TLS)
+
+# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
+ static type name
+# define PIXMAN_GET_THREAD_LOCAL(name) \
+ (&name)
+
+#elif defined(TOOLCHAIN_SUPPORTS__THREAD)
# define PIXMAN_DEFINE_THREAD_LOCAL(type, name) \
static __thread type name
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