src,build: improve the native module subsystem

* Split `jsrs-impl.cc` into separate modules.
* Make some refactoring.
* Rename the native addon to `jstp` since there already is a function
  that is not a part of JSRS.
* Fix `binding.gyp`: make `cflags` not ignored on macOS (as it appeared
  they used to be) and do not use `-O3` in Debug configuration.
* Use a macro to throw V8 exceptions to avoid boilerplate code.

Backport-of: #36

binding.gyp

@@ -1,9 +1,37 @@
 {
+  'variables': {
+    'jstp_base_cflags': ['-Wall', '-Wextra', '-Wno-unused-parameter'],
+    'jstp_debug_cflags': ['-g', '-O0'],
+    'jstp_release_cflags': ['-O3']
+  },
   'targets': [
     {
-      'target_name': 'jsrs',
-      'cflags': ['-O3'],
-      'sources': ['src/jsrs-impl.cc']
+      'target_name': 'jstp',
+      'sources': [
+        'src/node_bindings.cc',
+        'src/jsrs_serializer.cc',
+        'src/jsrs_parser.cc',
+        'src/packet_parser.cc',
+        'src/unicode_utils.cc'
+      ],
+      'configurations': {
+        'Debug': {
+          'cflags': ['<@(jstp_debug_cflags)'],
+          'xcode_settings': {
+            'OTHER_CFLAGS': ['<@(jstp_debug_cflags)']
+          }
+        },
+        'Release': {
+          'cflags': ['<@(jstp_release_cflags)'],
+          'xcode_settings': {
+            'OTHER_CFLAGS': ['<@(jstp_release_cflags)']
+          }
+        }
+      },
+      'cflags': ['<@(jstp_base_cflags)'],
+      'xcode_settings': {
+        'OTHER_CFLAGS': ['<@(jstp_base_cflags)']
+      }
     }
   ]
 }

lib/record-serialization.js

@@ -1,5 +1,6 @@
 'use strict';
 
+var common = require('./common');
 var serializerFactory = require('./serializer-factory');
 
 var jsrs = {};
@@ -11,31 +12,26 @@ module.exports = jsrs;
 // one of our priorities to optimize it.
 var USE_NATIVE_SERIALIZER = false;
 
-var jsrsNative;
+var jstpNative;
 
 try {
-  jsrsNative = require('../build/Release/jsrs');
+  jstpNative = require('../build/Release/jstp');
 } catch (e) {
   try {
-    jsrsNative = require('../build/Debug/jsrs');
+    jstpNative = require('../build/Debug/jstp');
   } catch (e) {
     console.warn(
-      'JSTP Record Serialization native module is not built. ' +
+      'JSTP native addon is not built. ' +
       'Run `npm install` in order to build it, otherwise you will get ' +
       'poor server performance under load.'
     );
     module.exports = require('./record-serialization-fallback');
   }
 }
 
-if (jsrsNative) {
-  jsrs.parse = jsrsNative.parse;
-
-  if (USE_NATIVE_SERIALIZER) {
-    jsrs.stringify = jsrsNative.stringify;
-  } else {
+if (jstpNative) {
+  common.extend(jsrs, jstpNative);
+  if (!USE_NATIVE_SERIALIZER) {
     jsrs.stringify = serializerFactory.createSerializer();
   }
-
-  jsrs.parseNetworkPackets = jsrsNative.parseNetworkPackets;
 }

src/common.h

@@ -0,0 +1,11 @@
+// Copyright (c) 2016-2017 JSTP project authors. Use of this source code is
+// governed by the MIT license that can be found in the LICENSE file.
+
+#ifndef SRC_COMMON_H_
+#define SRC_COMMON_H_
+
+#define THROW_EXCEPTION(ex_type, ex_msg)                                       \
+  isolate->ThrowException(v8::Exception::ex_type(                              \
+      v8::String::NewFromUtf8(isolate, ex_msg)))
+
+#endif  // SRC_COMMON_H_