mirror of https://gitee.com/bigwinds/arangodb
95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#include "ApplicationFeatures/V8PlatformFeature.h"
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#include "Logger/Logger.h"
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#include "ProgramOptions/ProgramOptions.h"
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#include "ProgramOptions/Section.h"
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using namespace arangodb;
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using namespace arangodb::options;
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namespace {
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class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
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public:
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virtual void* Allocate(size_t length) override {
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void* data = AllocateUninitialized(length);
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return data == nullptr ? data : memset(data, 0, length);
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}
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virtual void* AllocateUninitialized(size_t length) override {
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return malloc(length);
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}
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virtual void Free(void* data, size_t) override { free(data); }
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};
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}
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V8PlatformFeature::V8PlatformFeature(
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application_features::ApplicationServer* server)
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: ApplicationFeature(server, "V8Platform") {
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setOptional(true);
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requiresElevatedPrivileges(false);
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startsAfter("Logger");
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}
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void V8PlatformFeature::collectOptions(
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std::shared_ptr<ProgramOptions> options) {
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LOG_TOPIC(TRACE, Logger::STARTUP) << name() << "::collectOptions";
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options->addSection("javascript", "Configure the Javascript engine");
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options->addHiddenOption("--javascript.v8-options", "options to pass to v8",
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new StringParameter(&_v8options));
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}
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void V8PlatformFeature::start() {
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LOG_TOPIC(TRACE, Logger::STARTUP) << name() << "::start";
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v8::V8::InitializeICU();
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// explicit option --javascript.v8-options used
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if (!_v8options.empty()) {
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LOG(INFO) << "using V8 options '" << _v8options << "'";
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v8::V8::SetFlagsFromString(_v8options.c_str(), (int)_v8options.size());
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}
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#ifdef TRI_FORCE_ARMV6
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std::string const forceARMv6 = "--noenable-armv7";
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v8::V8::SetFlagsFromString(forceARMv6.c_str(), (int)forceARMv6.size());
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#endif
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_platform.reset(v8::platform::CreateDefaultPlatform());
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v8::V8::InitializePlatform(_platform.get());
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v8::V8::Initialize();
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_allocator.reset(new ArrayBufferAllocator);
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}
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void V8PlatformFeature::stop() {
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LOG_TOPIC(TRACE, Logger::STARTUP) << name() << "::stop";
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v8::V8::Dispose();
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v8::V8::ShutdownPlatform();
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_platform.reset();
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_allocator.reset();
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}
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