| /** |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| #include <string> |
| #include <jsapi.h> |
| #include "erl_nif.h" |
| |
| using namespace std; |
| |
| ERL_NIF_TERM |
| get_spidermonkey_version(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) |
| { |
| const string JAVASCRIPT = "JavaScript-C"; |
| int js_len = JAVASCRIPT.length(); |
| |
| // JS_GetImplementationVersion() |
| // returns "JavaScript-CMAJOR.MINOR.PATCH" |
| const string FULLVERSION = JS_GetImplementationVersion(); |
| |
| string result; |
| size_t foundJSString = FULLVERSION.find(JAVASCRIPT); |
| if (foundJSString != string::npos) { |
| //trim off "JavaScript-C", |
| result = FULLVERSION.substr(js_len); |
| } else { |
| //something changed in JS_GetImplementationVersion(), return original |
| result = FULLVERSION; |
| } |
| |
| return enif_make_string(env, result.c_str(), ERL_NIF_LATIN1); |
| } |
| |
| static ErlNifFunc nif_functions[] = { |
| {"get_spidermonkey_version", 0, get_spidermonkey_version} |
| }; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| ERL_NIF_INIT(couch_spidermonkey, nif_functions, NULL, NULL, NULL, NULL); |
| |
| #ifdef __cplusplus |
| } |
| #endif |