Reset vtid after fork in child

[lttng-ust.git] / include / ust / tracepoint.h

diff --git a/include/ust/tracepoint.h b/include/ust/tracepoint.h
index b7c38a2475a56c8de014ed7d5f8a4e6151c68850..c484353dc28ffbc2475cc35e24b676f074bfc3bb 100644 (file)
--- a/include/ust/tracepoint.h
+++ b/include/ust/tracepoint.h
@@ -28,6 +28,10 @@
 #include <urcu-bp.h>
 #include <urcu/list.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct tracepoint_probe {
        void *func;
        void *data;
@@ -61,7 +65,7 @@ struct tracepoint {
                        do {                                            \
                                __tp_it_func = __tp_it_probe_ptr->func; \
                                __tp_cb_data = __tp_it_probe_ptr->data; \
-                               ((void(*)(proto))__tp_it_func)(args);   \
+                               URCU_FORCE_CAST(void(*)(proto), __tp_it_func)(args); \
                        } while ((++__tp_it_probe_ptr)->func);          \
                }                                                       \
                rcu_read_unlock();                                      \
@@ -392,9 +396,11 @@ static void __attribute__((destructor)) __tracepoints__destroy(void)
  *              TP_LOGLEVEL(LOG_DEBUG,   7)
  *      )
  *
- * 2) Then, declare tracepoint loglevels for tracepoints. The first
- *    field is the name of the tracepoint, the second field is the
- *    loglevel name.
+ * 2) Then, declare tracepoint loglevels for tracepoints. A
+ *    TRACEPOINT_EVENT should be declared prior to the the
+ *    TRACEPOINT_LOGLEVEL for a given tracepoint name. The first field
+ *    is the name of the tracepoint, the second field is the loglevel
+ *    name.
  *
  *      TRACEPOINT_LOGLEVEL(< [com_company_]project_[component_]event >,
  *              < loglevel_name >)
@@ -411,4 +417,8 @@ static void __attribute__((destructor)) __tracepoints__destroy(void)
 
 #endif /* #ifndef TRACEPOINT_LOGLEVEL */
 
+#ifdef __cplusplus 
+}
+#endif
+
 #endif /* _UST_TRACEPOINT_H */