1 files changed, 13 insertions, 4 deletions

diff --git a/include/pgm.h b/include/pgm.h
index cafb18c..dd72bf6 100644
--- a/include/pgm.h
+++ b/include/pgm.h
@@ -90,8 +90,17 @@ typedef struct pgm_edge_attr
         size_t nr_consume;    /* #tokens consumed per invocation */
         size_t nr_threshold;  /* #tokens required before consume allowed */
 
+        // This will be 1 for producer-consumer buffer, 2 for wait-free buffer and
+        // 0 for an unknown type.
+        int ipc_type_to_use;
+
         pgm_edge_type_t type; /* type indicating underlying IPC of the edge */
 
+        /* for logical page support. Refer RTSS16 paper */
+        unsigned int color;
+        unsigned int bank;
+        unsigned long offset;
+
         /* edge-type specific params */
         union
         {
@@ -112,10 +121,6 @@ typedef struct pgm_edge_attr
                 {
                         /* The maximum number of bytes in a wait-free buffer. */
                         size_t buffer_bytes;
-                        /* for logical page support. Refer RTSS16 paper */
-                        unsigned int color;
-                        unsigned int bank;
-                        unsigned long offset;
                 };
                 struct /* POSIX message queue params */
                 {
@@ -139,7 +144,11 @@ static const edge_attr_t default_edge = {
         .nr_produce   = 1,
         .nr_consume   = 1,
         .nr_threshold = 1,
+        .ipc_type_to_use = 0,
         .type         = pgm_cv_edge,
+        .color = 0,
+        .bank = 0,
+        .offset = 0,
 };
 
 /*