[njs] Introduced njs_assert() macro.

[Dmitry Volyntsev]

details:   https://hg.nginx.org/njs/rev/fa50cc5b1128
branches:  
changeset: 1509:fa50cc5b1128
user:      Dmitry Volyntsev <xeioex at nginx.com>
date:      Thu Aug 27 14:43:23 2020 +0000
description:
Introduced njs_assert() macro.

diffstat:

 src/njs_assert.h |  27 +++++++++++++++++++++++++++
 src/njs_main.h   |   1 +
 2 files changed, 28 insertions(+), 0 deletions(-)

diffs (42 lines):

diff -r 6f561e3d947e -r fa50cc5b1128 src/njs_assert.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/njs_assert.h	Thu Aug 27 14:43:23 2020 +0000
@@ -0,0 +1,27 @@
+
+/*
+ * Copyright (C) Dmitry Volyntsev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#ifndef _NJS_ASSERT_H_INCLUDED_
+#define _NJS_ASSERT_H_INCLUDED_
+
+#if (NJS_DEBUG)
+
+#define njs_assert(condition)                                                 \
+    do {                                                                      \
+        if (!(condition)) {                                                   \
+            njs_stderror("Assertion \"%s\" failed at %s:%d\n", #condition,    \
+                         __FILE__, __LINE__);                                 \
+            abort();                                                          \
+        }                                                                     \
+    } while (0)
+
+#else
+
+#define njs_assert(condition) (void) (condition)
+
+#endif
+
+#endif /* _NJS_ASSERT_H_INCLUDED_ */
diff -r 6f561e3d947e -r fa50cc5b1128 src/njs_main.h
--- a/src/njs_main.h	Thu Aug 27 14:43:22 2020 +0000
+++ b/src/njs_main.h	Thu Aug 27 14:43:23 2020 +0000
@@ -36,6 +36,7 @@
 #include <njs_chb.h>
 #include <njs_utils.h>
 #include <njs_sprintf.h>
+#include <njs_assert.h>
 
 #include <njs_pcre.h>
 #include <njs_regex.h>