* @{
*/
+#ifdef DBUS_BUILD_TESTS
+static dbus_bool_t
+_dbus_enable_message_cache (void)
+{
+ static int enabled = -1;
+
+ if (enabled < 0)
+ {
+ const char *s = _dbus_getenv ("DBUS_MESSAGE_CACHE");
+
+ enabled = TRUE;
+
+ if (s && *s)
+ {
+ if (*s == '0')
+ enabled = FALSE;
+ else if (*s == '1')
+ enabled = TRUE;
+ else
+ _dbus_warn ("DBUS_MESSAGE_CACHE should be 0 or 1 if set, not '%s'",
+ s);
+ }
+ }
+
+ return enabled;
+}
+#else
+ /* constant expression, should be optimized away */
+# define _dbus_enable_message_cache() (TRUE)
+#endif
+
/* Not thread locked, but strictly const/read-only so should be OK
*/
/** An static string representing an empty signature */
_dbus_assert (message_cache_count >= 0);
+ if (!_dbus_enable_message_cache ())
+ goto out;
+
if ((_dbus_string_get_length (&message->header.data) +
_dbus_string_get_length (&message->body)) >
MAX_MESSAGE_SIZE_TO_CACHE)