[Pixman] [cairo] Additional option for pixman library configuration in single-thread environment
Jeff Muizelaar
jeff at infidigm.net
Tue Apr 27 13:27:02 PDT 2010
On 19/04/10 6:34 AM, Soeren Sandmann wrote:
> 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.
>
I'll commit this patch in a bit unless there are any complaints.
diff --git a/pixman/pixman-compiler.h b/pixman/pixman-compiler.h
index 531c8c9..840882d 100644
--- a/pixman/pixman-compiler.h
+++ b/pixman/pixman-compiler.h
@@ -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
@@ -126,6 +133,6 @@
#else
-# error "Unknown thread local support for this system"
+# error "Unknown thread local support for this system. Pixman will
not work with multiple threads. Define PIXMAN_NO_TLS to acknowledge and
accept this limitation and compile pixman without thread-safety support."
#endif
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