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// 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 "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 "memory_tracker-inl.h" |
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#include "node_external_reference.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::Isolate; |
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using v8::Local; |
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using v8::Object; |
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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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Isolate* isolate = env->isolate(); |
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HandleScope scope(env->isolate()); |
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Local<FunctionTemplate> t = NewFunctionTemplate(isolate, StatWatcher::New); |
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t->InstanceTemplate()->SetInternalFieldCount( |
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StatWatcher::kInternalFieldCount); |
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t->Inherit(HandleWrap::GetConstructorTemplate(env)); |
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SetProtoMethod(isolate, t, "start", StatWatcher::Start); |
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SetConstructorFunction(env->context(), target, "StatWatcher", t); |
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} |
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void StatWatcher::RegisterExternalReferences( |
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ExternalReferenceRegistry* registry) { |
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registry->Register(StatWatcher::New); |
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registry->Register(StatWatcher::Start); |
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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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✗✓ |
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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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✗✓ |
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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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✓✗ |
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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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✗✓ |
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CHECK_EQ(args.Length(), 2); |
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StatWatcher* wrap; |
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✗✓ |
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ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder()); |
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✗✓ |
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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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✗✓ |
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CHECK_NOT_NULL(*path); |
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✗✓ |
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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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✗✓ |
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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 |