From c40de746829971f2edbf9faeae64d4516cb5466e Mon Sep 17 00:00:00 2001
From: Ruslan Ermilov <ru@nginx.com>
Date: Thu, 29 Sep 2016 15:28:24 +0300
Subject: Introduced the NGX_COMPAT macro.

When enabled, some structures are padded to be size compatible
with their NGINX Plus versions.
---
 src/core/ngx_config.h | 13 +++++++++++++
 src/core/ngx_module.h |  8 +++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

(limited to 'src/core')

diff --git a/src/core/ngx_config.h b/src/core/ngx_config.h
index a0bfa63cd..1861be601 100644
--- a/src/core/ngx_config.h
+++ b/src/core/ngx_config.h
@@ -129,4 +129,17 @@ typedef intptr_t        ngx_flag_t;
 #define NGX_MAX_INT32_VALUE   (uint32_t) 0x7fffffff
 
 
+#if (NGX_COMPAT)
+
+#define NGX_COMPAT_BEGIN(slots)  uint64_t spare[slots];
+#define NGX_COMPAT_END
+
+#else
+
+#define NGX_COMPAT_BEGIN(slots)
+#define NGX_COMPAT_END
+
+#endif
+
+
 #endif /* _NGX_CONFIG_H_INCLUDED_ */
diff --git a/src/core/ngx_module.h b/src/core/ngx_module.h
index a1a0d6c27..c94474693 100644
--- a/src/core/ngx_module.h
+++ b/src/core/ngx_module.h
@@ -212,6 +212,12 @@
 #define NGX_MODULE_SIGNATURE_33  "0"
 #endif
 
+#if (NGX_COMPAT)
+#define NGX_MODULE_SIGNATURE_34  "1"
+#else
+#define NGX_MODULE_SIGNATURE_34  "0"
+#endif
+
 #define NGX_MODULE_SIGNATURE                                                  \
     NGX_MODULE_SIGNATURE_0 NGX_MODULE_SIGNATURE_1 NGX_MODULE_SIGNATURE_2      \
     NGX_MODULE_SIGNATURE_3 NGX_MODULE_SIGNATURE_4 NGX_MODULE_SIGNATURE_5      \
@@ -224,7 +230,7 @@
     NGX_MODULE_SIGNATURE_24 NGX_MODULE_SIGNATURE_25 NGX_MODULE_SIGNATURE_26   \
     NGX_MODULE_SIGNATURE_27 NGX_MODULE_SIGNATURE_28 NGX_MODULE_SIGNATURE_29   \
     NGX_MODULE_SIGNATURE_30 NGX_MODULE_SIGNATURE_31 NGX_MODULE_SIGNATURE_32   \
-    NGX_MODULE_SIGNATURE_33
+    NGX_MODULE_SIGNATURE_33 NGX_MODULE_SIGNATURE_34
 
 
 #define NGX_MODULE_V1                                                         \
-- 
cgit