729 lines
27 KiB
C++
729 lines
27 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#include "JSCExecutor.h"
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#include <algorithm>
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#include <condition_variable>
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#include <fcntl.h>
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#include <mutex>
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#include <sstream>
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#include <string>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <system_error>
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#include <arpa/inet.h>
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#include <folly/Conv.h>
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#include <folly/Exception.h>
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#include <folly/json.h>
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#include <folly/Memory.h>
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#include <folly/String.h>
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#include <glog/logging.h>
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#include <jschelpers/JSCHelpers.h>
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#include <jschelpers/Value.h>
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#include <jsinspector/InspectorInterfaces.h>
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#include "JSBigString.h"
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#include "JSBundleType.h"
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#include "JSCLegacyTracing.h"
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#include "JSCMemory.h"
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#include "JSCNativeModules.h"
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#include "JSCPerfStats.h"
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#include "JSCSamplingProfiler.h"
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#include "JSCTracing.h"
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#include "JSCUtils.h"
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#include "JSModulesUnbundle.h"
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#include "ModuleRegistry.h"
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#include "Platform.h"
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#include "RAMBundleRegistry.h"
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#include "RecoverableError.h"
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#include "SystraceSection.h"
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#if defined(WITH_JSC_MEMORY_PRESSURE)
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#include <jsc_memory.h>
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#endif
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#if defined(WITH_FB_JSC_TUNING) && defined(__ANDROID__)
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#include <jsc_config_android.h>
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#endif
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namespace facebook {
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namespace react {
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namespace {
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template<JSValueRef (JSCExecutor::*method)(size_t, const JSValueRef[])>
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inline JSObjectCallAsFunctionCallback exceptionWrapMethod() {
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struct funcWrapper {
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static JSValueRef call(
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JSContextRef ctx,
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JSObjectRef function,
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JSObjectRef thisObject,
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size_t argumentCount,
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const JSValueRef arguments[],
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JSValueRef *exception) {
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try {
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auto executor = Object::getGlobalObject(ctx).getPrivate<JSCExecutor>();
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if (executor && executor->getJavaScriptContext()) { // Executor not invalidated
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return (executor->*method)(argumentCount, arguments);
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}
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} catch (...) {
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*exception = translatePendingCppExceptionToJSError(ctx, function);
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}
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return Value::makeUndefined(ctx);
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}
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};
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return &funcWrapper::call;
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}
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template<JSValueRef (JSCExecutor::*method)(JSObjectRef object, JSStringRef propertyName)>
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inline JSObjectGetPropertyCallback exceptionWrapMethod() {
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struct funcWrapper {
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static JSValueRef call(
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JSContextRef ctx,
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JSObjectRef object,
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JSStringRef propertyName,
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JSValueRef *exception) {
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try {
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auto executor = Object::getGlobalObject(ctx).getPrivate<JSCExecutor>();
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if (executor && executor->getJavaScriptContext()) { // Executor not invalidated
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return (executor->*method)(object, propertyName);
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}
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} catch (...) {
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*exception = translatePendingCppExceptionToJSError(ctx, object);
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}
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return Value::makeUndefined(ctx);
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}
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};
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return &funcWrapper::call;
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}
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}
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#if DEBUG
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static JSValueRef nativeInjectHMRUpdate(
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JSContextRef ctx,
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JSObjectRef function,
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JSObjectRef thisObject,
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size_t argumentCount,
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const JSValueRef arguments[],
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JSValueRef *exception) {
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String execJSString = Value(ctx, arguments[0]).toString();
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String jsURL = Value(ctx, arguments[1]).toString();
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evaluateScript(ctx, execJSString, jsURL);
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return Value::makeUndefined(ctx);
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}
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#endif
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std::unique_ptr<JSExecutor> JSCExecutorFactory::createJSExecutor(
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std::shared_ptr<ExecutorDelegate> delegate, std::shared_ptr<MessageQueueThread> jsQueue) {
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return folly::make_unique<JSCExecutor>(delegate, jsQueue, m_jscConfig);
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}
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JSCExecutor::JSCExecutor(std::shared_ptr<ExecutorDelegate> delegate,
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std::shared_ptr<MessageQueueThread> messageQueueThread,
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const folly::dynamic& jscConfig) throw(JSException) :
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m_delegate(delegate),
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m_messageQueueThread(messageQueueThread),
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m_nativeModules(delegate ? delegate->getModuleRegistry() : nullptr),
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m_jscConfig(jscConfig) {
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initOnJSVMThread();
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{
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SystraceSection s("nativeModuleProxy object");
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installGlobalProxy(m_context, "nativeModuleProxy",
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exceptionWrapMethod<&JSCExecutor::getNativeModule>());
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}
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}
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JSCExecutor::~JSCExecutor() {
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CHECK(*m_isDestroyed) << "JSCExecutor::destroy() must be called before its destructor!";
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}
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void JSCExecutor::destroy() {
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*m_isDestroyed = true;
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if (m_messageQueueThread.get()) {
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m_messageQueueThread->runOnQueueSync([this] () {
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terminateOnJSVMThread();
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});
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} else {
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terminateOnJSVMThread();
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}
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}
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void JSCExecutor::setContextName(const std::string& name) {
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String jsName = String(m_context, name.c_str());
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JSC_JSGlobalContextSetName(m_context, jsName);
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}
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static bool canUseInspector(JSContextRef context) {
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#ifdef WITH_INSPECTOR
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#if defined(__APPLE__)
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return isCustomJSCPtr(context); // WITH_INSPECTOR && Apple
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#else
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return true; // WITH_INSPECTOR && Android
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#endif
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#else
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return false; // !WITH_INSPECTOR
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#endif
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}
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static bool canUseSamplingProfiler(JSContextRef context) {
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#if defined(__APPLE__) || defined(WITH_JSC_EXTRA_TRACING)
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return JSC_JSSamplingProfilerEnabled(context);
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#else
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return false;
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#endif
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}
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void JSCExecutor::initOnJSVMThread() throw(JSException) {
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SystraceSection s("JSCExecutor::initOnJSVMThread");
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#if defined(__APPLE__)
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const bool useCustomJSC = m_jscConfig.getDefault("UseCustomJSC", false).getBool();
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if (useCustomJSC) {
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JSC_configureJSCForIOS(true, toJson(m_jscConfig));
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}
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#else
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const bool useCustomJSC = false;
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#endif
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#if defined(WITH_FB_JSC_TUNING) && defined(__ANDROID__)
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configureJSCForAndroid(m_jscConfig);
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#endif
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// Create a custom global class, so we can store data in it later using JSObjectSetPrivate
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JSClassRef globalClass = nullptr;
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{
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SystraceSection s_("JSClassCreate");
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JSClassDefinition definition = kJSClassDefinitionEmpty;
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definition.attributes |= kJSClassAttributeNoAutomaticPrototype;
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globalClass = JSC_JSClassCreate(useCustomJSC, &definition);
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}
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{
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SystraceSection s_("JSGlobalContextCreateInGroup");
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m_context = JSC_JSGlobalContextCreateInGroup(useCustomJSC, nullptr, globalClass);
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}
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JSC_JSClassRelease(useCustomJSC, globalClass);
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// Add a pointer to ourselves so we can retrieve it later in our hooks
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Object::getGlobalObject(m_context).setPrivate(this);
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if (canUseInspector(m_context)) {
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const std::string ownerId = m_jscConfig.getDefault("OwnerIdentity", "unknown").getString();
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const std::string appId = m_jscConfig.getDefault("AppIdentity", "unknown").getString();
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const std::string deviceId = m_jscConfig.getDefault("DeviceIdentity", "unknown").getString();
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auto checkIsInspectedRemote = [ownerId, appId, deviceId]() {
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return isNetworkInspected(ownerId, appId, deviceId);
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};
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auto& globalInspector = facebook::react::getInspectorInstance();
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JSC_JSGlobalContextEnableDebugger(m_context, globalInspector, ownerId.c_str(), checkIsInspectedRemote);
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}
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installNativeHook<&JSCExecutor::nativeFlushQueueImmediate>("nativeFlushQueueImmediate");
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installNativeHook<&JSCExecutor::nativeCallSyncHook>("nativeCallSyncHook");
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installGlobalFunction(m_context, "nativeLoggingHook", JSCNativeHooks::loggingHook);
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installGlobalFunction(m_context, "nativePerformanceNow", JSCNativeHooks::nowHook);
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#if DEBUG
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installGlobalFunction(m_context, "nativeInjectHMRUpdate", nativeInjectHMRUpdate);
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#endif
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addNativeTracingHooks(m_context);
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addNativeTracingLegacyHooks(m_context);
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addJSCMemoryHooks(m_context);
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addJSCPerfStatsHooks(m_context);
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JSCNativeHooks::installPerfHooks(m_context);
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if (canUseSamplingProfiler(m_context)) {
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initSamplingProfilerOnMainJSCThread(m_context);
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}
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}
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bool JSCExecutor::isNetworkInspected(const std::string &owner, const std::string &app, const std::string &device) {
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#ifdef WITH_FB_DBG_ATTACH_BEFORE_EXEC
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auto connect_socket = [](int socket_desc, std::string address, int port) {
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if (socket_desc < 0) {
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::close(socket_desc);
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return false;
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}
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struct timeval tv;
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tv.tv_sec = 1;
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tv.tv_usec = 0;
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auto sock_opt_rcv_resp = setsockopt(socket_desc, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof(struct timeval));
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if (sock_opt_rcv_resp < 0) {
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::close(socket_desc);
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return false;
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}
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auto sock_opt_snd_resp = setsockopt(socket_desc, SOL_SOCKET, SO_SNDTIMEO, (const char*)&tv, sizeof(struct timeval));
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if (sock_opt_snd_resp < 0) {
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::close(socket_desc);
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return false;
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}
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struct sockaddr_in server;
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server.sin_addr.s_addr = inet_addr(address.c_str());
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server.sin_family = AF_INET;
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server.sin_port = htons(port);
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auto connect_resp = ::connect(socket_desc, (struct sockaddr *)&server, sizeof(server));
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if (connect_resp < 0) {
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::close(socket_desc);
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return false;
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}
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return true;
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};
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int socket_desc = socket(AF_INET, SOCK_STREAM, 0);
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if (!connect_socket(socket_desc, "127.0.0.1", 8082)) {
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#if defined(__ANDROID__)
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socket_desc = socket(AF_INET, SOCK_STREAM, 0);
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if (!connect_socket(socket_desc, "10.0.2.2", 8082) /* emulator */) {
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socket_desc = socket(AF_INET, SOCK_STREAM, 0);
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if (!connect_socket(socket_desc, "10.0.3.2", 8082) /* genymotion */) {
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return false;
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}
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}
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#else //!defined(__ANDROID__)
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return false;
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#endif //defined(__ANDROID__)
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}
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std::string escapedOwner = folly::uriEscape<std::string>(owner, folly::UriEscapeMode::QUERY);
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std::string escapedApp = folly::uriEscape<std::string>(app, folly::UriEscapeMode::QUERY);
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std::string escapedDevice = folly::uriEscape<std::string>(device, folly::UriEscapeMode::QUERY);
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std::string msg = folly::to<std::string>(
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"GET /autoattach?title=", escapedOwner,
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"&app=" , escapedApp,
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"&device=" , escapedDevice,
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" HTTP/1.1\r\n\r\n");
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auto send_resp = ::send(socket_desc, msg.c_str(), msg.length(), 0);
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if (send_resp < 0) {
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::close(socket_desc);
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return false;
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}
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char server_reply[200];
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server_reply[199] = '\0';
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auto recv_resp = ::recv(socket_desc, server_reply,
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sizeof(server_reply) - 1, 0);
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if (recv_resp < 0) {
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::close(socket_desc);
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return false;
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}
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std::string response(server_reply);
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if (response.size() < 25) {
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::close(socket_desc);
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return false;
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}
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auto responseCandidate = response.substr(response.size() - 25);
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auto found = responseCandidate.find("{\"autoattach\":true}") != std::string::npos;
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::close(socket_desc);
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return found;
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#else //!WITH_FB_DBG_ATTACH_BEFORE_EXEC
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return false;
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#endif //WITH_FB_DBG_ATTACH_BEFORE_EXEC
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}
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void JSCExecutor::terminateOnJSVMThread() {
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JSGlobalContextRef context = m_context;
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m_context = nullptr;
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Object::getGlobalObject(context).setPrivate(nullptr);
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m_nativeModules.reset();
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if (canUseInspector(context)) {
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auto &globalInspector = facebook::react::getInspectorInstance();
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JSC_JSGlobalContextDisableDebugger(context, globalInspector);
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}
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JSC_JSGlobalContextRelease(context);
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}
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#ifdef WITH_FBJSCEXTENSIONS
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static const char* explainLoadSourceStatus(JSLoadSourceStatus status) {
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switch (status) {
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case JSLoadSourceIsCompiled:
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return "No error encountered during source load";
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case JSLoadSourceErrorOnRead:
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return "Error reading source";
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case JSLoadSourceIsNotCompiled:
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return "Source is not compiled";
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case JSLoadSourceErrorVersionMismatch:
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return "Source version not supported";
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default:
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return "Bad error code";
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}
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}
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#endif
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// basename_r isn't in all iOS SDKs, so use this simple version instead.
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static std::string simpleBasename(const std::string &path) {
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size_t pos = path.rfind("/");
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return (pos != std::string::npos) ? path.substr(pos) : path;
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}
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void JSCExecutor::loadApplicationScript(std::unique_ptr<const JSBigString> script, std::string sourceURL) {
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SystraceSection s("JSCExecutor::loadApplicationScript",
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"sourceURL", sourceURL);
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std::string scriptName = simpleBasename(sourceURL);
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ReactMarker::logTaggedMarker(ReactMarker::RUN_JS_BUNDLE_START, scriptName.c_str());
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String jsSourceURL(m_context, sourceURL.c_str());
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// TODO t15069155: reduce the number of overrides here
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#ifdef WITH_FBJSCEXTENSIONS
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if (auto fileStr = dynamic_cast<const JSBigFileString *>(script.get())) {
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JSContextLock lock(m_context);
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JSLoadSourceStatus jsStatus;
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auto bcSourceCode = JSCreateSourceCodeFromFile(fileStr->fd(), jsSourceURL, nullptr, &jsStatus);
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switch (jsStatus) {
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case JSLoadSourceIsCompiled:
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if (!bcSourceCode) {
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throw std::runtime_error("Unexpected error opening compiled bundle");
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}
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evaluateSourceCode(m_context, bcSourceCode, jsSourceURL);
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flush();
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ReactMarker::logMarker(ReactMarker::CREATE_REACT_CONTEXT_STOP);
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ReactMarker::logTaggedMarker(ReactMarker::RUN_JS_BUNDLE_STOP, scriptName.c_str());
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return;
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case JSLoadSourceErrorVersionMismatch:
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throw RecoverableError(explainLoadSourceStatus(jsStatus));
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case JSLoadSourceErrorOnRead:
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case JSLoadSourceIsNotCompiled:
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// Not bytecode, fall through.
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break;
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}
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}
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#elif defined(__APPLE__)
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BundleHeader header;
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memcpy(&header, script->c_str(), std::min(script->size(), sizeof(BundleHeader)));
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auto scriptTag = parseTypeFromHeader(header);
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if (scriptTag == ScriptTag::BCBundle) {
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using file_ptr = std::unique_ptr<FILE, decltype(&fclose)>;
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file_ptr source(fopen(sourceURL.c_str(), "r"), fclose);
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int sourceFD = fileno(source.get());
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JSValueRef jsError;
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JSValueRef result = JSC_JSEvaluateBytecodeBundle(m_context, NULL, sourceFD, jsSourceURL, &jsError);
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if (result == nullptr) {
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throw JSException(m_context, jsError, jsSourceURL);
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}
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} else
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#endif
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{
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String jsScript;
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JSContextLock lock(m_context);
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{
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SystraceSection s_("JSCExecutor::loadApplicationScript-createExpectingAscii");
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ReactMarker::logMarker(ReactMarker::JS_BUNDLE_STRING_CONVERT_START);
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jsScript = adoptString(std::move(script));
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ReactMarker::logMarker(ReactMarker::JS_BUNDLE_STRING_CONVERT_STOP);
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}
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#ifdef WITH_FBSYSTRACE
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fbsystrace_end_section(TRACE_TAG_REACT_CXX_BRIDGE);
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#endif
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SystraceSection s_("JSCExecutor::loadApplicationScript-evaluateScript");
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evaluateScript(m_context, jsScript, jsSourceURL);
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}
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flush();
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ReactMarker::logMarker(ReactMarker::CREATE_REACT_CONTEXT_STOP);
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ReactMarker::logTaggedMarker(ReactMarker::RUN_JS_BUNDLE_STOP, scriptName.c_str());
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}
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void JSCExecutor::setBundleRegistry(std::unique_ptr<RAMBundleRegistry> bundleRegistry) {
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if (!m_bundleRegistry) {
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installNativeHook<&JSCExecutor::nativeRequire>("nativeRequire");
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}
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m_bundleRegistry = std::move(bundleRegistry);
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}
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void JSCExecutor::registerBundle(uint32_t bundleId, const std::string& bundlePath) {
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if (m_bundleRegistry) {
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m_bundleRegistry->registerBundle(bundleId, bundlePath);
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}
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}
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void JSCExecutor::bindBridge() throw(JSException) {
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SystraceSection s("JSCExecutor::bindBridge");
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std::call_once(m_bindFlag, [this] {
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auto global = Object::getGlobalObject(m_context);
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auto batchedBridgeValue = global.getProperty("__fbBatchedBridge");
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if (batchedBridgeValue.isUndefined()) {
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auto requireBatchedBridge = global.getProperty("__fbRequireBatchedBridge");
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if (!requireBatchedBridge.isUndefined()) {
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batchedBridgeValue = requireBatchedBridge.asObject().callAsFunction({});
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}
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if (batchedBridgeValue.isUndefined()) {
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throw JSException("Could not get BatchedBridge, make sure your bundle is packaged correctly");
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}
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}
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auto batchedBridge = batchedBridgeValue.asObject();
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m_callFunctionReturnFlushedQueueJS = batchedBridge.getProperty("callFunctionReturnFlushedQueue").asObject();
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m_invokeCallbackAndReturnFlushedQueueJS = batchedBridge.getProperty("invokeCallbackAndReturnFlushedQueue").asObject();
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m_flushedQueueJS = batchedBridge.getProperty("flushedQueue").asObject();
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m_callFunctionReturnResultAndFlushedQueueJS = batchedBridge.getProperty("callFunctionReturnResultAndFlushedQueue").asObject();
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});
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}
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void JSCExecutor::callNativeModules(Value&& value) {
|
|
SystraceSection s("JSCExecutor::callNativeModules");
|
|
// If this fails, you need to pass a fully functional delegate with a
|
|
// module registry to the factory/ctor.
|
|
CHECK(m_delegate) << "Attempting to use native modules without a delegate";
|
|
try {
|
|
auto calls = value.toJSONString();
|
|
m_delegate->callNativeModules(*this, folly::parseJson(calls), true);
|
|
} catch (...) {
|
|
std::string message = "Error in callNativeModules()";
|
|
try {
|
|
message += ":" + value.toString().str();
|
|
} catch (...) {
|
|
// ignored
|
|
}
|
|
std::throw_with_nested(std::runtime_error(message));
|
|
}
|
|
}
|
|
|
|
void JSCExecutor::flush() {
|
|
SystraceSection s("JSCExecutor::flush");
|
|
|
|
if (m_flushedQueueJS) {
|
|
callNativeModules(m_flushedQueueJS->callAsFunction({}));
|
|
return;
|
|
}
|
|
|
|
// When a native module is called from JS, BatchedBridge.enqueueNativeCall()
|
|
// is invoked. For that to work, require('BatchedBridge') has to be called,
|
|
// and when that happens, __fbBatchedBridge is set as a side effect.
|
|
auto global = Object::getGlobalObject(m_context);
|
|
auto batchedBridgeValue = global.getProperty("__fbBatchedBridge");
|
|
// So here, if __fbBatchedBridge doesn't exist, then we know no native calls
|
|
// have happened, and we were able to determine this without forcing
|
|
// BatchedBridge to be loaded as a side effect.
|
|
if (!batchedBridgeValue.isUndefined()) {
|
|
// If calls were made, we bind to the JS bridge methods, and use them to
|
|
// get the pending queue of native calls.
|
|
bindBridge();
|
|
callNativeModules(m_flushedQueueJS->callAsFunction({}));
|
|
} else if (m_delegate) {
|
|
// If we have a delegate, we need to call it; we pass a null list to
|
|
// callNativeModules, since we know there are no native calls, without
|
|
// calling into JS again. If no calls were made and there's no delegate,
|
|
// nothing happens, which is correct.
|
|
callNativeModules(Value::makeNull(m_context));
|
|
}
|
|
}
|
|
|
|
void JSCExecutor::callFunction(const std::string& moduleId, const std::string& methodId, const folly::dynamic& arguments) {
|
|
SystraceSection s("JSCExecutor::callFunction");
|
|
// This weird pattern is because Value is not default constructible.
|
|
// The lambda is inlined, so there's no overhead.
|
|
auto result = [&] {
|
|
JSContextLock lock(m_context);
|
|
try {
|
|
if (!m_callFunctionReturnResultAndFlushedQueueJS) {
|
|
bindBridge();
|
|
}
|
|
return m_callFunctionReturnFlushedQueueJS->callAsFunction({
|
|
Value(m_context, String::createExpectingAscii(m_context, moduleId)),
|
|
Value(m_context, String::createExpectingAscii(m_context, methodId)),
|
|
Value::fromDynamic(m_context, std::move(arguments))
|
|
});
|
|
} catch (...) {
|
|
std::throw_with_nested(
|
|
std::runtime_error("Error calling " + moduleId + "." + methodId));
|
|
}
|
|
}();
|
|
callNativeModules(std::move(result));
|
|
}
|
|
|
|
void JSCExecutor::invokeCallback(const double callbackId, const folly::dynamic& arguments) {
|
|
SystraceSection s("JSCExecutor::invokeCallback");
|
|
auto result = [&] {
|
|
JSContextLock lock(m_context);
|
|
try {
|
|
if (!m_invokeCallbackAndReturnFlushedQueueJS) {
|
|
bindBridge();
|
|
}
|
|
return m_invokeCallbackAndReturnFlushedQueueJS->callAsFunction({
|
|
Value::makeNumber(m_context, callbackId),
|
|
Value::fromDynamic(m_context, std::move(arguments))
|
|
});
|
|
} catch (...) {
|
|
std::throw_with_nested(
|
|
std::runtime_error(folly::to<std::string>("Error invoking callback ", callbackId)));
|
|
}
|
|
}();
|
|
callNativeModules(std::move(result));
|
|
}
|
|
|
|
Value JSCExecutor::callFunctionSyncWithValue(
|
|
const std::string& module, const std::string& method, Value args) {
|
|
SystraceSection s("JSCExecutor::callFunction");
|
|
Object result = [&] {
|
|
JSContextLock lock(m_context);
|
|
if (!m_callFunctionReturnResultAndFlushedQueueJS) {
|
|
bindBridge();
|
|
}
|
|
return m_callFunctionReturnResultAndFlushedQueueJS->callAsFunction({
|
|
Value(m_context, String::createExpectingAscii(m_context, module)),
|
|
Value(m_context, String::createExpectingAscii(m_context, method)),
|
|
std::move(args),
|
|
}).asObject();
|
|
}();
|
|
|
|
Value length = result.getProperty("length");
|
|
|
|
if (!length.isNumber() || length.asInteger() != 2) {
|
|
std::runtime_error("Return value of a callFunction must be an array of size 2");
|
|
}
|
|
callNativeModules(result.getPropertyAtIndex(1));
|
|
return result.getPropertyAtIndex(0);
|
|
}
|
|
|
|
void JSCExecutor::setGlobalVariable(std::string propName, std::unique_ptr<const JSBigString> jsonValue) {
|
|
try {
|
|
SystraceSection s("JSCExecutor::setGlobalVariable", "propName", propName);
|
|
auto valueToInject = Value::fromJSON(adoptString(std::move(jsonValue)));
|
|
Object::getGlobalObject(m_context).setProperty(propName.c_str(), valueToInject);
|
|
} catch (...) {
|
|
std::throw_with_nested(std::runtime_error("Error setting global variable: " + propName));
|
|
}
|
|
}
|
|
|
|
std::string JSCExecutor::getDescription() {
|
|
#if defined(__APPLE__)
|
|
if (isCustomJSCPtr(m_context)) {
|
|
return "Custom JSC";
|
|
} else {
|
|
return "System JSC";
|
|
}
|
|
#else
|
|
return "JSC";
|
|
#endif
|
|
}
|
|
|
|
String JSCExecutor::adoptString(std::unique_ptr<const JSBigString> script) {
|
|
#if defined(WITH_FBJSCEXTENSIONS)
|
|
const JSBigString* string = script.release();
|
|
auto jsString = JSStringCreateAdoptingExternal(string->c_str(), string->size(), (void*)string, [](void* s) {
|
|
delete static_cast<JSBigString*>(s);
|
|
});
|
|
return String::adopt(m_context, jsString);
|
|
#else
|
|
return script->isAscii()
|
|
? String::createExpectingAscii(m_context, script->c_str(), script->size())
|
|
: String(m_context, script->c_str());
|
|
#endif
|
|
}
|
|
|
|
void* JSCExecutor::getJavaScriptContext() {
|
|
return m_context;
|
|
}
|
|
|
|
#ifdef WITH_JSC_MEMORY_PRESSURE
|
|
void JSCExecutor::handleMemoryPressure(int pressureLevel) {
|
|
JSHandleMemoryPressure(this, m_context, static_cast<JSMemoryPressure>(pressureLevel));
|
|
}
|
|
#endif
|
|
|
|
void JSCExecutor::flushQueueImmediate(Value&& queue) {
|
|
auto queueStr = queue.toJSONString();
|
|
m_delegate->callNativeModules(*this, folly::parseJson(queueStr), false);
|
|
}
|
|
|
|
void JSCExecutor::loadModule(uint32_t bundleId, uint32_t moduleId) {
|
|
auto module = m_bundleRegistry->getModule(bundleId, moduleId);
|
|
auto sourceUrl = String::createExpectingAscii(m_context, module.name);
|
|
auto source = adoptString(std::unique_ptr<JSBigString>(new JSBigStdString(module.code)));
|
|
evaluateScript(m_context, source, sourceUrl);
|
|
}
|
|
|
|
// Native JS hooks
|
|
template<JSValueRef (JSCExecutor::*method)(size_t, const JSValueRef[])>
|
|
void JSCExecutor::installNativeHook(const char* name) {
|
|
installGlobalFunction(m_context, name, exceptionWrapMethod<method>());
|
|
}
|
|
|
|
JSValueRef JSCExecutor::getNativeModule(JSObjectRef object, JSStringRef propertyName) {
|
|
if (JSC_JSStringIsEqualToUTF8CString(m_context, propertyName, "name")) {
|
|
return Value(m_context, String(m_context, "NativeModules"));
|
|
}
|
|
|
|
return m_nativeModules.getModule(m_context, propertyName);
|
|
}
|
|
|
|
JSValueRef JSCExecutor::nativeRequire(
|
|
size_t argumentCount,
|
|
const JSValueRef arguments[]) {
|
|
uint32_t bundleId, moduleId;
|
|
std::tie(bundleId, moduleId) = parseNativeRequireParameters(m_context, arguments, argumentCount);
|
|
ReactMarker::logMarker(ReactMarker::NATIVE_REQUIRE_START);
|
|
loadModule(bundleId, moduleId);
|
|
ReactMarker::logMarker(ReactMarker::NATIVE_REQUIRE_STOP);
|
|
return Value::makeUndefined(m_context);
|
|
}
|
|
|
|
JSValueRef JSCExecutor::nativeFlushQueueImmediate(
|
|
size_t argumentCount,
|
|
const JSValueRef arguments[]) {
|
|
if (argumentCount != 1) {
|
|
throw std::invalid_argument("Got wrong number of args");
|
|
}
|
|
|
|
flushQueueImmediate(Value(m_context, arguments[0]));
|
|
return Value::makeUndefined(m_context);
|
|
}
|
|
|
|
JSValueRef JSCExecutor::nativeCallSyncHook(
|
|
size_t argumentCount,
|
|
const JSValueRef arguments[]) {
|
|
if (argumentCount != 3) {
|
|
throw std::invalid_argument("Got wrong number of args");
|
|
}
|
|
|
|
unsigned int moduleId = Value(m_context, arguments[0]).asUnsignedInteger();
|
|
unsigned int methodId = Value(m_context, arguments[1]).asUnsignedInteger();
|
|
folly::dynamic args = folly::parseJson(Value(m_context, arguments[2]).toJSONString());
|
|
|
|
if (!args.isArray()) {
|
|
throw std::invalid_argument(
|
|
folly::to<std::string>("method parameters should be array, but are ", args.typeName()));
|
|
}
|
|
|
|
MethodCallResult result = m_delegate->callSerializableNativeHook(
|
|
*this,
|
|
moduleId,
|
|
methodId,
|
|
std::move(args));
|
|
if (!result.hasValue()) {
|
|
return Value::makeUndefined(m_context);
|
|
}
|
|
return Value::fromDynamic(m_context, result.value());
|
|
}
|
|
|
|
} }
|