File: buffer.cpp

package info (click to toggle)
node-nan 2.4.0-2
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 1,212 kB
  • ctags: 1,658
  • sloc: cpp: 6,307; python: 3,105; ansic: 1,314; makefile: 104; sh: 33
file content (75 lines) | stat: -rw-r--r-- 1,965 bytes parent folder | download
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
/*********************************************************************
 * NAN - Native Abstractions for Node.js
 *
 * Copyright (c) 2016 NAN contributors
 *
 * MIT License <https://github.com/nodejs/nan/blob/master/LICENSE.md>
 ********************************************************************/

#include <nan.h>

using namespace Nan;  // NOLINT(build/namespaces)

static const size_t DATA_SIZE = 26;

static char data[DATA_SIZE];

void callback(char* data, void* hint) {
  free(data);
}

NAN_METHOD(New1) {
  char *dynamic_data = static_cast<char *>(malloc(DATA_SIZE));
  for (unsigned char i = 0; i < DATA_SIZE; i++) {
    dynamic_data[i] = 'a' + i;
  }
  info.GetReturnValue().Set(
      NewBuffer(dynamic_data, DATA_SIZE, callback, 0).ToLocalChecked());
}

NAN_METHOD(New2) {
  v8::Local<v8::Object> buf = NewBuffer(DATA_SIZE).ToLocalChecked();
  char* pbuf = node::Buffer::Data(buf);
  for (unsigned char i = 0; i < DATA_SIZE; i++) {
    pbuf[i] = 'a' + i;
  }
  info.GetReturnValue().Set(buf);
}

NAN_METHOD(New3) {
  char *dynamic_data = static_cast<char *>(malloc(DATA_SIZE));
  for (unsigned char i = 0; i < DATA_SIZE; i++) {
    dynamic_data[i] = 'a' + i;
  }
  info.GetReturnValue().Set(
      NewBuffer(dynamic_data, DATA_SIZE).ToLocalChecked());
}

NAN_METHOD(Copy) {
  info.GetReturnValue().Set(CopyBuffer(data, DATA_SIZE).ToLocalChecked());
}


NAN_MODULE_INIT(Init) {
  for (unsigned char i = 0; i < DATA_SIZE; i++) {
    data[i] = 'a' + i;
  }
  Set(target
    , New<v8::String>("new1").ToLocalChecked()
    , New<v8::FunctionTemplate>(New1)->GetFunction()
  );
  Set(target
    , New<v8::String>("new2").ToLocalChecked()
    , New<v8::FunctionTemplate>(New2)->GetFunction()
  );
  Set(target
    , New<v8::String>("new3").ToLocalChecked()
    , New<v8::FunctionTemplate>(New3)->GetFunction()
  );
  Set(target
    , New<v8::String>("copy").ToLocalChecked()
    , New<v8::FunctionTemplate>(Copy)->GetFunction()
  );
}

NODE_MODULE(buffer, Init)