mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
1.3 KiB
65 lines
1.3 KiB
#include <unistd.h>
|
|
#include <node.h>
|
|
#include <v8.h>
|
|
#include <uv.h>
|
|
|
|
using namespace v8;
|
|
using namespace node;
|
|
|
|
struct async_req {
|
|
uv_work_t req;
|
|
int input;
|
|
int output;
|
|
Persistent<Function> callback;
|
|
};
|
|
|
|
void DoAsync (uv_work_t *r) {
|
|
async_req *req = reinterpret_cast<async_req *>(r->data);
|
|
sleep(1); // simulate CPU intensive process...
|
|
req->output = req->input * 2;
|
|
}
|
|
|
|
void AfterAsync (uv_work_t *r) {
|
|
HandleScope scope;
|
|
async_req *req = reinterpret_cast<async_req *>(r->data);
|
|
|
|
Handle<Value> argv[2] = { Null(), Integer::New(req->output) };
|
|
|
|
TryCatch try_catch;
|
|
|
|
req->callback->Call(Context::GetCurrent()->Global(), 2, argv);
|
|
|
|
// cleanup
|
|
req->callback.Dispose();
|
|
delete req;
|
|
|
|
if (try_catch.HasCaught()) {
|
|
FatalException(try_catch);
|
|
}
|
|
}
|
|
|
|
Handle<Value> Method(const Arguments& args) {
|
|
HandleScope scope;
|
|
|
|
async_req *req = new async_req;
|
|
req->req.data = req;
|
|
|
|
req->input = args[0]->IntegerValue();
|
|
req->output = 0;
|
|
|
|
Local<Function> callback = Local<Function>::Cast(args[1]);
|
|
req->callback = Persistent<Function>::New(callback);
|
|
|
|
uv_queue_work(uv_default_loop(),
|
|
&req->req,
|
|
DoAsync,
|
|
(uv_after_work_cb)AfterAsync);
|
|
|
|
return Undefined();
|
|
}
|
|
|
|
void init(Handle<Object> exports, Handle<Object> module) {
|
|
NODE_SET_METHOD(module, "exports", Method);
|
|
}
|
|
|
|
NODE_MODULE(binding, init);
|
|
|