vlib: add support for workers sync
Adds api that allows workers to synchronize through main thread.
Type: improvement
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I1e75e2fb5144d397d19b13c4dfc7e937f11c044c
diff --git a/src/vlib/threads.h b/src/vlib/threads.h
index e406dde..b25d476 100644
--- a/src/vlib/threads.h
+++ b/src/vlib/threads.h
@@ -101,6 +101,9 @@
const char *barrier_caller;
const char *barrier_context;
volatile u32 *node_reforks_required;
+ volatile u32 wait_before_barrier;
+ volatile u32 workers_before_barrier;
+ volatile u32 done_work_before_barrier;
long lwp;
int cpu_id;
@@ -484,6 +487,17 @@
void vlib_get_thread_core_numa (vlib_worker_thread_t * w, unsigned cpu_id);
vlib_thread_main_t *vlib_get_thread_main_not_inline (void);
+/**
+ * Force workers sync from within worker
+ *
+ * Must be paired with @ref vlib_workers_continue
+ */
+void vlib_workers_sync (void);
+/**
+ * Release barrier after workers sync
+ */
+void vlib_workers_continue (void);
+
#endif /* included_vlib_threads_h */
/*