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86fdaa7455
Instead of passing them through the data bound to function templates, store references to them in a list embedded inside the context. This makes the function templates more context-independent, and makes it possible to embed binding data in non-main contexts. Co-authored-by: Anna Henningsen <anna@addaleax.net> PR-URL: https://github.com/nodejs/node/pull/33139 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
126 lines
4.2 KiB
C++
126 lines
4.2 KiB
C++
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#include "memory_tracker-inl.h"
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#include "node_stat_watcher.h"
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#include "async_wrap-inl.h"
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#include "env-inl.h"
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#include "node_file-inl.h"
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#include "util-inl.h"
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#include <cstring>
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#include <cstdlib>
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namespace node {
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using v8::Context;
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using v8::FunctionCallbackInfo;
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using v8::FunctionTemplate;
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using v8::HandleScope;
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using v8::Integer;
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using v8::Local;
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using v8::Object;
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using v8::String;
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using v8::Uint32;
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using v8::Value;
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void StatWatcher::Initialize(Environment* env, Local<Object> target) {
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HandleScope scope(env->isolate());
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Local<FunctionTemplate> t = env->NewFunctionTemplate(StatWatcher::New);
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t->InstanceTemplate()->SetInternalFieldCount(
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StatWatcher::kInternalFieldCount);
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Local<String> statWatcherString =
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FIXED_ONE_BYTE_STRING(env->isolate(), "StatWatcher");
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t->SetClassName(statWatcherString);
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t->Inherit(HandleWrap::GetConstructorTemplate(env));
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env->SetProtoMethod(t, "start", StatWatcher::Start);
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target->Set(env->context(), statWatcherString,
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t->GetFunction(env->context()).ToLocalChecked()).Check();
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}
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StatWatcher::StatWatcher(fs::BindingData* binding_data,
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Local<Object> wrap,
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bool use_bigint)
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: HandleWrap(binding_data->env(),
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wrap,
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reinterpret_cast<uv_handle_t*>(&watcher_),
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AsyncWrap::PROVIDER_STATWATCHER),
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use_bigint_(use_bigint),
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binding_data_(binding_data) {
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CHECK_EQ(0, uv_fs_poll_init(env()->event_loop(), &watcher_));
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}
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void StatWatcher::Callback(uv_fs_poll_t* handle,
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int status,
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const uv_stat_t* prev,
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const uv_stat_t* curr) {
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StatWatcher* wrap = ContainerOf(&StatWatcher::watcher_, handle);
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Environment* env = wrap->env();
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HandleScope handle_scope(env->isolate());
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Context::Scope context_scope(env->context());
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Local<Value> arr = fs::FillGlobalStatsArray(
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wrap->binding_data_.get(), wrap->use_bigint_, curr);
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USE(fs::FillGlobalStatsArray(
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wrap->binding_data_.get(), wrap->use_bigint_, prev, true));
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Local<Value> argv[2] = { Integer::New(env->isolate(), status), arr };
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wrap->MakeCallback(env->onchange_string(), arraysize(argv), argv);
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}
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void StatWatcher::New(const FunctionCallbackInfo<Value>& args) {
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CHECK(args.IsConstructCall());
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fs::BindingData* binding_data =
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Environment::GetBindingData<fs::BindingData>(args);
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new StatWatcher(binding_data, args.This(), args[0]->IsTrue());
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}
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// wrap.start(filename, interval)
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void StatWatcher::Start(const FunctionCallbackInfo<Value>& args) {
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CHECK_EQ(args.Length(), 2);
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StatWatcher* wrap;
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ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
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CHECK(!uv_is_active(wrap->GetHandle()));
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node::Utf8Value path(args.GetIsolate(), args[0]);
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CHECK_NOT_NULL(*path);
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CHECK(args[1]->IsUint32());
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const uint32_t interval = args[1].As<Uint32>()->Value();
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// Note that uv_fs_poll_start does not return ENOENT, we are handling
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// mostly memory errors here.
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const int err = uv_fs_poll_start(&wrap->watcher_, Callback, *path, interval);
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if (err != 0) {
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args.GetReturnValue().Set(err);
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}
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}
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} // namespace node
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