I don't see where you create the context? It looks like the persistent
handle is never initialized.
On Sat, Mar 19, 2016, 10:02 AM Ben Noordhuis <i...@bnoordhuis.nl> wrote:
> On Fri, Mar 18, 2016 at 10:55 AM, Daniel Burchardt
> <danielburcha...@gmail.com> wrote:
> > You are right. My new code:
> >
> > class Browser
> > {
> > public:
> > Browser();
> > void getContext();
> > const char* execute(const char* data);
> > int test;
> > private:
> > v8::Isolate* _isolate;
> > v8::Persistent<v8::Context> _context;
> > };
> >
> >
> > Browser::Browser()
> > {
> > v8::V8::InitializeICU();
> > v8::V8::InitializeExternalStartupData("/opt/v8build/");
> > v8::Platform* platform = v8::platform::CreateDefaultPlatform();
> > v8::V8::InitializePlatform(platform);
> > v8::V8::Initialize();
> >
> > ArrayBufferAllocator allocator;
> > v8::Isolate::CreateParams create_params;
> > create_params.array_buffer_allocator = &allocator;
> >
> > _isolate = v8::Isolate::New(create_params);
> > }
> >
> > const char* Browser::execute(const char* data)
> > {
> > v8::Isolate::Scope isolate_scope(_isolate);
> > v8::HandleScope handle_scope(_isolate);
> >
> > const char* result;
> > {
> > v8::Local<v8::Context> context =
> > v8::Local<v8::Context>::New(_isolate, _context);
> >
> > v8::Context::Scope context_scope(context);
> >
> > v8::Local<v8::String> source =
> > v8::String::NewFromUtf8(_isolate, data,
> > v8::NewStringType::kNormal).ToLocalChecked();
> >
> > v8::Local<v8::Script> script = v8::Script::Compile(context,
> > source).ToLocalChecked();
> > v8::Local<v8::Value> result = script->Run(context).ToLocalChecked();
> > v8::String::Utf8Value utf8(result);
> >
> > // Konwersja danych do char*
> > int len = utf8.length() + 1;
> > char *str = (char *) calloc(sizeof(char), len);
> > strncpy(str, *utf8, len);
> >
> > return str;
> > }
> >
> > return result;
> > }
> >
> >
> > Result is error
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > 0x00007ffff5998d9e in v8::Context::Enter() () from /opt/v8build/hello.so
>
> Try it with a debug build (`make -j8 x64.debug extrachecks=on`), that
> should hopefully give you an error message rather than a segmentation
> fault.
>
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