From 9f2056468d83b19ef3f9df85e33d3bf220a27de1 Mon Sep 17 00:00:00 2001
From: Patrick Pelissier <patrick.pelissier@gmail.com>
Date: Fri, 1 Dec 2017 22:46:09 +0100
Subject: [PATCH] Add buffer capacity

---
 m-buffer.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/m-buffer.h b/m-buffer.h
index 877bed7e..5bcda4c6 100644
--- a/m-buffer.h
+++ b/m-buffer.h
@@ -312,6 +312,13 @@ M_C(name, _init)(buffer_t v, size_t size)                               \
  {                                                                      \
    return v->overwrite;							\
  }									\
+                                                                        \
+ static inline size_t                                                   \
+ M_C(name, _capacity)(const buffer_t v)                                 \
+ {                                                                      \
+   (void) v; /* may be unused */                                        \
+   return BUFFERI_SIZE(m_size);                                         \
+ }                                                                      \
 
 /* Definition of a a QUEUE for Many Produccer / Many Consummer
    for high bandwidth scenario: