Node.js: added check for libunit version at compile time.

auto/modules/nodejs

@@ -123,6 +123,7 @@ fi
 
 NXT_NODE_TMP=${NXT_BUILD_DIR}/src/${NXT_NODE}/unit-http
 NXT_NODE_TARBALL=${NXT_BUILD_DIR}/${NXT_NODE}-unit-http.tar.gz
+NXT_NODE_VERSION_FILE=${NXT_NODE_TMP}/version.h
 NXT_NODE_EXPORTS="export UNIT_SRC_PATH=${PWD}/src \
     && export UNIT_BUILD_PATH=${PWD}/${NXT_BUILD_DIR} \
     && export UNIT_LIB_STATIC_PATH=${PWD}/${NXT_BUILD_DIR}/libunit.a"
@@ -149,9 +150,15 @@ ${NXT_NODE}: ${NXT_NODE}-copy $NXT_BUILD_DIR/$NXT_LIB_UNIT_STATIC
 	${NXT_NODE_EXPORTS} && \\
 	cd ${NXT_NODE_TMP} && ${NXT_NODE_GYP} configure build clean
 
-${NXT_NODE}-copy:
+${NXT_NODE}-copy: ${NXT_NODE_VERSION_FILE}
 	mkdir -p ${NXT_BUILD_DIR}/src/
-	cp -rp src/nodejs/ ${NXT_BUILD_DIR}/src/${NXT_NODE}
+	cp -rp src/nodejs/* ${NXT_BUILD_DIR}/src/${NXT_NODE}
+
+${NXT_NODE_VERSION_FILE}: src/nxt_main.h
+	mkdir -p ${NXT_NODE_TMP}
+	$echo -n '#define NXT_NODE_VERNUM ' > $NXT_NODE_VERSION_FILE
+	grep 'define NXT_VERNUM' src/nxt_main.h \\
+		| sed -e 's/[^0-9]//g' >> $NXT_NODE_VERSION_FILE
 
 ${NXT_NODE_TARBALL}: ${NXT_NODE}-copy
 	tar -zcvf ${NXT_NODE_TARBALL} -C ${NXT_NODE_TMP} .

pkg/npm/Makefile

@@ -3,7 +3,11 @@
 DEFAULT_VERSION := $(shell grep 'define NXT_VERSION' ../../src/nxt_main.h \
 			| sed -e 's/^.*"\(.*\)".*/\1/')
 
+DEFAULT_VERNUM := $(shell grep 'define NXT_VERNUM' ../../src/nxt_main.h \
+			| sed -e 's/[^0-9]//g')
+
 VERSION ?= $(DEFAULT_VERSION)
+VERNUM ?= $(DEFAULT_VERNUM)
 NPM ?= npm
 
 default:
@@ -11,6 +15,7 @@ default:
 
 copy:
 	cp -rp ../../src/nodejs/unit-http .
+	echo '#define NXT_NODE_VERNUM ${VERNUM}' > unit-http/version.h
 	mv unit-http/binding_pub.gyp unit-http/binding.gyp
 	sed -e 's/"version"\s*:.*/"version": "${VERSION}.0",/' \
 		unit-http/package.json > unit-http/package.json.tmp

src/nodejs/unit-http/package.json

@@ -4,14 +4,15 @@
     "description": "HTTP module for NGINX Unit",
     "main": "http.js",
     "files": [
+        "unit.h",
+        "version.h",
         "addon.cpp",
-        "binding.gyp",
-        "http_server.js",
+        "unit.cpp",
         "http.js",
+        "http_server.js",
         "package.json",
         "socket.js",
-        "unit.cpp",
-        "unit.h",
+        "binding.gyp",
         "README.md"
     ],
     "scripts": {

src/nodejs/unit-http/unit.h

@@ -6,18 +6,23 @@
 #ifndef _NXT_NODEJS_UNIT_H_INCLUDED_
 #define _NXT_NODEJS_UNIT_H_INCLUDED_
 
-
 #include <node_api.h>
 
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+#include "version.h"
 #include <nxt_unit.h>
+
+#if NXT_UNIT_VERNUM != NXT_NODE_VERNUM
+#error "libunit version mismatch."
+#endif
+
 #include <nxt_unit_response.h>
 #include <nxt_unit_request.h>
 
+
 #ifdef __cplusplus
 } /* extern "C" */
 #endif