Add epoxy_set_resolver_failure_handler()

Signed-off-by: Adam Jackson <ajax@redhat.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/dispatch_common.c b/src/dispatch_common.c
index 87bd98a..7ef0536 100644
--- a/src/dispatch_common.c
+++ b/src/dispatch_common.c
@@ -845,3 +845,21 @@ WRAPPER(epoxy_glEnd)(void)
 
 PFNGLBEGINPROC epoxy_glBegin = epoxy_glBegin_wrapped;
 PFNGLENDPROC epoxy_glEnd = epoxy_glEnd_wrapped;
+
+epoxy_resolver_failure_handler_t epoxy_resolver_failure_handler;
+
+epoxy_resolver_failure_handler_t
+epoxy_set_resolver_failure_handler(epoxy_resolver_failure_handler_t handler)
+{
+#ifdef _WIN32
+    return InterlockedExchangePointer(&epoxy_resolver_failure_handler,
+				      handler);
+#else
+    epoxy_resolver_failure_handler_t old;
+    pthread_mutex_lock(&api.mutex);
+    old = epoxy_resolver_failure_handler;
+    epoxy_resolver_failure_handler = handler;
+    pthread_mutex_unlock(&api.mutex);
+    return old;
+#endif
+}