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15 | 15 |
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16 | 16 | namespace node {
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17 | 17 |
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18 |
| -inline AsyncWrap::AsyncWrap(Environment* env, |
19 |
| - v8::Local<v8::Object> object, |
20 |
| - ProviderType provider, |
21 |
| - AsyncWrap* parent) |
22 |
| - : BaseObject(env, object), bits_(static_cast<uint32_t>(provider) << 1), |
23 |
| - uid_(env->get_async_wrap_uid()) { |
24 |
| - CHECK_NE(provider, PROVIDER_NONE); |
25 |
| - CHECK_GE(object->InternalFieldCount(), 1); |
26 |
| - |
27 |
| - // Shift provider value over to prevent id collision. |
28 |
| - persistent().SetWrapperClassId(NODE_ASYNC_ID_OFFSET + provider); |
29 |
| - |
30 |
| - v8::Local<v8::Function> init_fn = env->async_hooks_init_function(); |
31 |
| - |
32 |
| - // No init callback exists, no reason to go on. |
33 |
| - if (init_fn.IsEmpty()) |
34 |
| - return; |
35 |
| - |
36 |
| - // If async wrap callbacks are disabled and no parent was passed that has |
37 |
| - // run the init callback then return. |
38 |
| - if (!env->async_wrap_callbacks_enabled() && |
39 |
| - (parent == nullptr || !parent->ran_init_callback())) |
40 |
| - return; |
41 |
| - |
42 |
| - v8::HandleScope scope(env->isolate()); |
43 |
| - |
44 |
| - v8::Local<v8::Value> argv[] = { |
45 |
| - v8::Number::New(env->isolate(), get_uid()), |
46 |
| - v8::Int32::New(env->isolate(), provider), |
47 |
| - Null(env->isolate()), |
48 |
| - Null(env->isolate()) |
49 |
| - }; |
50 |
| - |
51 |
| - if (parent != nullptr) { |
52 |
| - argv[2] = v8::Number::New(env->isolate(), parent->get_uid()); |
53 |
| - argv[3] = parent->object(); |
54 |
| - } |
55 |
| - |
56 |
| - v8::TryCatch try_catch(env->isolate()); |
57 |
| - |
58 |
| - v8::MaybeLocal<v8::Value> ret = |
59 |
| - init_fn->Call(env->context(), object, arraysize(argv), argv); |
60 |
| - |
61 |
| - if (ret.IsEmpty()) { |
62 |
| - ClearFatalExceptionHandlers(env); |
63 |
| - FatalException(env->isolate(), try_catch); |
64 |
| - } |
65 |
| - |
66 |
| - bits_ |= 1; // ran_init_callback() is true now. |
67 |
| -} |
68 |
| - |
69 |
| - |
70 |
| -inline AsyncWrap::~AsyncWrap() { |
71 |
| - if (!ran_init_callback()) |
72 |
| - return; |
73 |
| - |
74 |
| - v8::Local<v8::Function> fn = env()->async_hooks_destroy_function(); |
75 |
| - if (!fn.IsEmpty()) { |
76 |
| - v8::HandleScope scope(env()->isolate()); |
77 |
| - v8::Local<v8::Value> uid = v8::Number::New(env()->isolate(), get_uid()); |
78 |
| - v8::TryCatch try_catch(env()->isolate()); |
79 |
| - v8::MaybeLocal<v8::Value> ret = |
80 |
| - fn->Call(env()->context(), v8::Null(env()->isolate()), 1, &uid); |
81 |
| - if (ret.IsEmpty()) { |
82 |
| - ClearFatalExceptionHandlers(env()); |
83 |
| - FatalException(env()->isolate(), try_catch); |
84 |
| - } |
85 |
| - } |
86 |
| -} |
87 |
| - |
88 |
| - |
89 | 18 | inline bool AsyncWrap::ran_init_callback() const {
|
90 | 19 | return static_cast<bool>(bits_ & 1);
|
91 | 20 | }
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|
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