session: add support for memfd segments

[vpp.git] / src / vlibmemory / memory_api.h

diff --git a/src/vlibmemory/memory_api.h b/src/vlibmemory/memory_api.h
index 58f47d1..4cda04b 100644 (file)
--- a/src/vlibmemory/memory_api.h
+++ b/src/vlibmemory/memory_api.h
@@ -58,6 +58,13 @@ vl_msg_api_handle_from_index_and_epoch (u32 index, u32 epoch)
   return handle;
 }
 
+static inline u8
+vl_msg_api_handle_is_valid (u32 handle, u32 restarts)
+{
+  u32 epoch = vl_msg_api_handle_get_epoch (handle);
+  return ((restarts & VL_API_EPOCH_MASK) == epoch);
+}
+
 #define VL_MEM_API_LOG_Q_LEN(fmt,qlen)                 \
 if (TRACE_VLIB_MEMORY_QUEUE)                           \
   do {                                                 \