1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*********************************************************************
* NAN - Native Abstractions for Node.js
*
* Copyright (c) 2018 NAN contributors
*
* MIT License <https://github.com/nodejs/nan/blob/master/LICENSE.md>
********************************************************************/
#include <nan.h>
using namespace Nan; // NOLINT(build/namespaces)
// Custom data type: This serves as an example of how external
// libraries could be hooked in, populate their objects and send them to JS.
struct data_t {
int index;
int data;
};
template<typename T>
class ProgressQueueWorker : public AsyncProgressQueueWorker<T> {
public:
ProgressQueueWorker(
Callback *callback
, Callback *progress
, int iters)
: AsyncProgressQueueWorker<T>(callback), progress(progress)
, iters(iters) {}
~ProgressQueueWorker() {
delete progress;
}
void Execute (
const typename AsyncProgressQueueWorker<T>::ExecutionProgress& progress) {
data_t data;
for (int i = 0; i < iters; ++i) {
data.index = i;
data.data = i * 2;
progress.Send(&data, 1);
}
}
void HandleProgressCallback(const T *data, size_t count) {
HandleScope scope;
v8::Local<v8::Object> obj = Nan::New<v8::Object>();
Nan::Set(
obj,
Nan::New("index").ToLocalChecked(),
New<v8::Integer>(data->index));
Nan::Set(
obj,
Nan::New("data").ToLocalChecked(),
New<v8::Integer>(data->data));
v8::Local<v8::Value> argv[] = { obj };
progress->Call(1, argv, this->async_resource);
}
private:
Callback *progress;
int iters;
};
NAN_METHOD(DoProgress) {
Callback *progress = new Callback(To<v8::Function>(info[1]).ToLocalChecked());
Callback *callback = new Callback(To<v8::Function>(info[2]).ToLocalChecked());
AsyncQueueWorker(new ProgressQueueWorker<data_t>(
callback
, progress
, To<uint32_t>(info[0]).FromJust()));
}
NAN_MODULE_INIT(Init) {
Set(target
, New<v8::String>("doProgress").ToLocalChecked()
, GetFunction(New<v8::FunctionTemplate>(DoProgress)).ToLocalChecked());
}
NODE_MODULE(asyncprogressqueueworkerstream, Init)
|
