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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "node_buffer.h"
#include "node_constants.h"
#include "node_javascript.h"
#include "node_platform.h"
#include "node_version.h"
#include "node_internals.h"
#include "node_revert.h"
#include "node_debug_options.h"
#include "node_perf.h"
#if defined HAVE_PERFCTR
#include "node_counters.h"
#endif
#if HAVE_OPENSSL
#include "node_crypto.h"
#endif
#if defined(NODE_HAVE_I18N_SUPPORT)
#include "node_i18n.h"
#endif
#if HAVE_INSPECTOR
#include "inspector_io.h"
#endif
#if defined HAVE_DTRACE || defined HAVE_ETW
#include "node_dtrace.h"
#endif
#if defined HAVE_LTTNG
#include "node_lttng.h"
#endif
#include "ares.h"
#include "async_wrap-inl.h"
#include "env-inl.h"
#include "handle_wrap.h"
#include "http_parser.h"
#include "nghttp2/nghttp2ver.h"
#include "req_wrap-inl.h"
#include "string_bytes.h"
#include "tracing/agent.h"
#include "util.h"
#include "uv.h"
#if NODE_USE_V8_PLATFORM
#include "libplatform/libplatform.h"
#endif // NODE_USE_V8_PLATFORM
#include "v8-debug.h"
#include "v8-profiler.h"
#include "zlib.h"
#ifdef NODE_ENABLE_VTUNE_PROFILING
#include "../deps/v8/src/third_party/vtune/v8-vtune.h"
#endif
#include <errno.h>
#include <fcntl.h> // _O_RDWR
#include <limits.h> // PATH_MAX
#include <locale.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <string>
#include <vector>
#if defined(NODE_HAVE_I18N_SUPPORT)
#include <unicode/uvernum.h>
#endif
#if defined(LEAK_SANITIZER)
#include <sanitizer/lsan_interface.h>
#endif
#if defined(_MSC_VER)
#include <direct.h>
#include <io.h>
#define getpid GetCurrentProcessId
#define umask _umask
typedef int mode_t;
#else
#include <pthread.h>
#include <sys/resource.h> // getrlimit, setrlimit
#include <unistd.h> // setuid, getuid
#endif
#if defined(__POSIX__) && !defined(__ANDROID__) && !defined(__CloudABI__)
#include <pwd.h> // getpwnam()
#include <grp.h> // getgrnam()
#endif
#if defined(__POSIX__)
#include <dlfcn.h>
#endif
#ifdef __APPLE__
#include <crt_externs.h>
#define environ (*_NSGetEnviron())
#elif !defined(_MSC_VER)
extern char **environ;
#endif
// This is used to load built-in modules. Instead of using
// __attribute__((constructor)), we call the _register_<modname>
// function for each built-in modules explicitly in
// node::RegisterBuiltinModules(). This is only forward declaration.
// The definitions are in each module's implementation when calling
// the NODE_BUILTIN_MODULE_CONTEXT_AWARE.
#define V(modname) void _register_##modname();
NODE_BUILTIN_MODULES(V)
#undef V
namespace node {
using v8::Array;
using v8::ArrayBuffer;
using v8::Boolean;
using v8::Context;
using v8::EscapableHandleScope;
using v8::Exception;
using v8::Float64Array;
using v8::Function;
using v8::FunctionCallbackInfo;
using v8::HandleScope;
using v8::HeapStatistics;
using v8::Integer;
using v8::Isolate;
using v8::Local;
using v8::Locker;
using v8::MaybeLocal;
using v8::Message;
using v8::Name;
using v8::NamedPropertyHandlerConfiguration;
using v8::Null;
using v8::Number;
using v8::Object;
using v8::ObjectTemplate;
using v8::Promise;
using v8::PromiseRejectMessage;
using v8::PropertyCallbackInfo;
using v8::ScriptOrigin;
using v8::SealHandleScope;
using v8::String;
using v8::TryCatch;
using v8::Uint32Array;
using v8::Undefined;
using v8::V8;
using v8::Value;
using AsyncHooks = node::Environment::AsyncHooks;
static bool print_eval = false;
static bool force_repl = false;
static bool syntax_check_only = false;
static bool trace_deprecation = false;
static bool throw_deprecation = false;
static bool trace_sync_io = false;
static bool no_force_async_hooks_checks = false;
static bool track_heap_objects = false;
static const char* eval_string = nullptr;
static std::vector<std::string> preload_modules;
static const int v8_default_thread_pool_size = 4;
static int v8_thread_pool_size = v8_default_thread_pool_size;
static bool prof_process = false;
static bool v8_is_profiling = false;
static bool node_is_initialized = false;
static node_module* modpending;
static node_module* modlist_builtin;
static node_module* modlist_internal;
static node_module* modlist_linked;
static node_module* modlist_addon;
static bool trace_enabled = false;
static std::string trace_enabled_categories; // NOLINT(runtime/string)
static bool abort_on_uncaught_exception = false;
// Bit flag used to track security reverts (see node_revert.h)
unsigned int reverted = 0;
#if defined(NODE_HAVE_I18N_SUPPORT)
// Path to ICU data (for i18n / Intl)
std::string icu_data_dir; // NOLINT(runtime/string)
#endif
// used by C++ modules as well
bool no_deprecation = false;
#if HAVE_OPENSSL
// use OpenSSL's cert store instead of bundled certs
bool ssl_openssl_cert_store =
#if defined(NODE_OPENSSL_CERT_STORE)
true;
#else
false;
#endif
# if NODE_FIPS_MODE
// used by crypto module
bool enable_fips_crypto = false;
bool force_fips_crypto = false;
# endif // NODE_FIPS_MODE
std::string openssl_config; // NOLINT(runtime/string)
#endif // HAVE_OPENSSL
// true if process warnings should be suppressed
bool no_process_warnings = false;
bool trace_warnings = false;
// Set in node.cc by ParseArgs when --preserve-symlinks is used.
// Used in node_config.cc to set a constant on process.binding('config')
// that is used by lib/module.js
bool config_preserve_symlinks = false;
// Set in node.cc by ParseArgs when --experimental-modules is used.
// Used in node_config.cc to set a constant on process.binding('config')
// that is used by lib/module.js
bool config_experimental_modules = false;
// Set in node.cc by ParseArgs when --loader is used.
// Used in node_config.cc to set a constant on process.binding('config')
// that is used by lib/internal/bootstrap_node.js
std::string config_userland_loader; // NOLINT(runtime/string)
// Set by ParseArgs when --pending-deprecation or NODE_PENDING_DEPRECATION
// is used.
bool config_pending_deprecation = false;
// Set in node.cc by ParseArgs when --redirect-warnings= is used.
std::string config_warning_file; // NOLINT(runtime/string)
// Set in node.cc by ParseArgs when --expose-internals or --expose_internals is
// used.
// Used in node_config.cc to set a constant on process.binding('config')
// that is used by lib/internal/bootstrap_node.js
bool config_expose_internals = false;
bool v8_initialized = false;
bool linux_at_secure = false;
// process-relative uptime base, initialized at start-up
static double prog_start_time;
static Mutex node_isolate_mutex;
static v8::Isolate* node_isolate;
node::DebugOptions debug_options;
static struct {
#if NODE_USE_V8_PLATFORM
void Initialize(int thread_pool_size) {
if (trace_enabled) {
tracing_agent_.reset(new tracing::Agent());
platform_ = new NodePlatform(thread_pool_size,
tracing_agent_->GetTracingController());
V8::InitializePlatform(platform_);
tracing::TraceEventHelper::SetTracingController(
tracing_agent_->GetTracingController());
} else {
tracing_agent_.reset(nullptr);
platform_ = new NodePlatform(thread_pool_size, nullptr);
V8::InitializePlatform(platform_);
tracing::TraceEventHelper::SetTracingController(
new v8::TracingController());
}
}
void Dispose() {
platform_->Shutdown();
delete platform_;
platform_ = nullptr;
tracing_agent_.reset(nullptr);
}
void DrainVMTasks(Isolate* isolate) {
platform_->DrainBackgroundTasks(isolate);
}
void CancelVMTasks(Isolate* isolate) {
platform_->CancelPendingDelayedTasks(isolate);
}
#if HAVE_INSPECTOR
bool StartInspector(Environment *env, const char* script_path,
const node::DebugOptions& options) {
// Inspector agent can't fail to start, but if it was configured to listen
// right away on the websocket port and fails to bind/etc, this will return
// false.
return env->inspector_agent()->Start(platform_, script_path, options);
}
bool InspectorStarted(Environment *env) {
return env->inspector_agent()->IsStarted();
}
#endif // HAVE_INSPECTOR
void StartTracingAgent() {
tracing_agent_->Start(trace_enabled_categories);
}
void StopTracingAgent() {
tracing_agent_->Stop();
}
NodePlatform* Platform() {
return platform_;
}
std::unique_ptr<tracing::Agent> tracing_agent_;
NodePlatform* platform_;
#else // !NODE_USE_V8_PLATFORM
void Initialize(int thread_pool_size) {}
void Dispose() {}
void DrainVMTasks(Isolate* isolate) {}
void CancelVMTasks(Isolate* isolate) {}
bool StartInspector(Environment *env, const char* script_path,
const node::DebugOptions& options) {
env->ThrowError("Node compiled with NODE_USE_V8_PLATFORM=0");
return true;
}
void StartTracingAgent() {
fprintf(stderr, "Node compiled with NODE_USE_V8_PLATFORM=0, "
"so event tracing is not available.\n");
}
void StopTracingAgent() {}
NodePlatform* Platform() {
return nullptr;
}
#endif // !NODE_USE_V8_PLATFORM
#if !NODE_USE_V8_PLATFORM || !HAVE_INSPECTOR
bool InspectorStarted(Environment *env) {
return false;
}
#endif // !NODE_USE_V8_PLATFORM || !HAVE_INSPECTOR
} v8_platform;
#ifdef __POSIX__
static const unsigned kMaxSignal = 32;
#endif
static void PrintErrorString(const char* format, ...) {
va_list ap;
va_start(ap, format);
#ifdef _WIN32
HANDLE stderr_handle = GetStdHandle(STD_ERROR_HANDLE);
// Check if stderr is something other than a tty/console
if (stderr_handle == INVALID_HANDLE_VALUE ||
stderr_handle == nullptr ||
uv_guess_handle(_fileno(stderr)) != UV_TTY) {
vfprintf(stderr, format, ap);
va_end(ap);
return;
}
// Fill in any placeholders
int n = _vscprintf(format, ap);
std::vector<char> out(n + 1);
vsprintf(out.data(), format, ap);
// Get required wide buffer size
n = MultiByteToWideChar(CP_UTF8, 0, out.data(), -1, nullptr, 0);
std::vector<wchar_t> wbuf(n);
MultiByteToWideChar(CP_UTF8, 0, out.data(), -1, wbuf.data(), n);
// Don't include the null character in the output
CHECK_GT(n, 0);
WriteConsoleW(stderr_handle, wbuf.data(), n - 1, nullptr, nullptr);
#else
vfprintf(stderr, format, ap);
#endif
va_end(ap);
}
const char *signo_string(int signo) {
#define SIGNO_CASE(e) case e: return #e;
switch (signo) {
#ifdef SIGHUP
SIGNO_CASE(SIGHUP);
#endif
#ifdef SIGINT
SIGNO_CASE(SIGINT);
#endif
#ifdef SIGQUIT
SIGNO_CASE(SIGQUIT);
#endif
#ifdef SIGILL
SIGNO_CASE(SIGILL);
#endif
#ifdef SIGTRAP
SIGNO_CASE(SIGTRAP);
#endif
#ifdef SIGABRT
SIGNO_CASE(SIGABRT);
#endif
#ifdef SIGIOT
# if SIGABRT != SIGIOT
SIGNO_CASE(SIGIOT);
# endif
#endif
#ifdef SIGBUS
SIGNO_CASE(SIGBUS);
#endif
#ifdef SIGFPE
SIGNO_CASE(SIGFPE);
#endif
#ifdef SIGKILL
SIGNO_CASE(SIGKILL);
#endif
#ifdef SIGUSR1
SIGNO_CASE(SIGUSR1);
#endif
#ifdef SIGSEGV
SIGNO_CASE(SIGSEGV);
#endif
#ifdef SIGUSR2
SIGNO_CASE(SIGUSR2);
#endif
#ifdef SIGPIPE
SIGNO_CASE(SIGPIPE);
#endif
#ifdef SIGALRM
SIGNO_CASE(SIGALRM);
#endif
SIGNO_CASE(SIGTERM);
#ifdef SIGCHLD
SIGNO_CASE(SIGCHLD);
#endif
#ifdef SIGSTKFLT
SIGNO_CASE(SIGSTKFLT);
#endif
#ifdef SIGCONT
SIGNO_CASE(SIGCONT);
#endif
#ifdef SIGSTOP
SIGNO_CASE(SIGSTOP);
#endif
#ifdef SIGTSTP
SIGNO_CASE(SIGTSTP);
#endif
#ifdef SIGBREAK
SIGNO_CASE(SIGBREAK);
#endif
#ifdef SIGTTIN
SIGNO_CASE(SIGTTIN);
#endif
#ifdef SIGTTOU
SIGNO_CASE(SIGTTOU);
#endif
#ifdef SIGURG
SIGNO_CASE(SIGURG);
#endif
#ifdef SIGXCPU
SIGNO_CASE(SIGXCPU);
#endif
#ifdef SIGXFSZ
SIGNO_CASE(SIGXFSZ);
#endif
#ifdef SIGVTALRM
SIGNO_CASE(SIGVTALRM);
#endif
#ifdef SIGPROF
SIGNO_CASE(SIGPROF);
#endif
#ifdef SIGWINCH
SIGNO_CASE(SIGWINCH);
#endif
#ifdef SIGIO
SIGNO_CASE(SIGIO);
#endif
#ifdef SIGPOLL
# if SIGPOLL != SIGIO
SIGNO_CASE(SIGPOLL);
# endif
#endif
#ifdef SIGLOST
# if SIGLOST != SIGABRT
SIGNO_CASE(SIGLOST);
# endif
#endif
#ifdef SIGPWR
# if SIGPWR != SIGLOST
SIGNO_CASE(SIGPWR);
# endif
#endif
#ifdef SIGINFO
# if !defined(SIGPWR) || SIGINFO != SIGPWR
SIGNO_CASE(SIGINFO);
# endif
#endif
#ifdef SIGSYS
SIGNO_CASE(SIGSYS);
#endif
default: return "";
}
}
Local<Value> ErrnoException(Isolate* isolate,
int errorno,
const char *syscall,
const char *msg,
const char *path) {
Environment* env = Environment::GetCurrent(isolate);
Local<Value> e;
Local<String> estring = OneByteString(env->isolate(), errno_string(errorno));
if (msg == nullptr || msg[0] == '\0') {
msg = strerror(errorno);
}
Local<String> message = OneByteString(env->isolate(), msg);
Local<String> cons =
String::Concat(estring, FIXED_ONE_BYTE_STRING(env->isolate(), ", "));
cons = String::Concat(cons, message);
Local<String> path_string;
if (path != nullptr) {
// FIXME(bnoordhuis) It's questionable to interpret the file path as UTF-8.
path_string = String::NewFromUtf8(env->isolate(), path);
}
if (path_string.IsEmpty() == false) {
cons = String::Concat(cons, FIXED_ONE_BYTE_STRING(env->isolate(), " '"));
cons = String::Concat(cons, path_string);
cons = String::Concat(cons, FIXED_ONE_BYTE_STRING(env->isolate(), "'"));
}
e = Exception::Error(cons);
Local<Object> obj = e->ToObject(env->isolate());
obj->Set(env->errno_string(), Integer::New(env->isolate(), errorno));
obj->Set(env->code_string(), estring);
if (path_string.IsEmpty() == false) {
obj->Set(env->path_string(), path_string);
}
if (syscall != nullptr) {
obj->Set(env->syscall_string(), OneByteString(env->isolate(), syscall));
}
return e;
}
static Local<String> StringFromPath(Isolate* isolate, const char* path) {
#ifdef _WIN32
if (strncmp(path, "\\\\?\\UNC\\", 8) == 0) {
return String::Concat(FIXED_ONE_BYTE_STRING(isolate, "\\\\"),
String::NewFromUtf8(isolate, path + 8));
} else if (strncmp(path, "\\\\?\\", 4) == 0) {
return String::NewFromUtf8(isolate, path + 4);
}
#endif
return String::NewFromUtf8(isolate, path);
}
Local<Value> UVException(Isolate* isolate,
int errorno,
const char* syscall,
const char* msg,
const char* path) {
return UVException(isolate, errorno, syscall, msg, path, nullptr);
}
Local<Value> UVException(Isolate* isolate,
int errorno,
const char* syscall,
const char* msg,
const char* path,
const char* dest) {
Environment* env = Environment::GetCurrent(isolate);
if (!msg || !msg[0])
msg = uv_strerror(errorno);
Local<String> js_code = OneByteString(isolate, uv_err_name(errorno));
Local<String> js_syscall = OneByteString(isolate, syscall);
Local<String> js_path;
Local<String> js_dest;
Local<String> js_msg = js_code;
js_msg = String::Concat(js_msg, FIXED_ONE_BYTE_STRING(isolate, ": "));
js_msg = String::Concat(js_msg, OneByteString(isolate, msg));
js_msg = String::Concat(js_msg, FIXED_ONE_BYTE_STRING(isolate, ", "));
js_msg = String::Concat(js_msg, js_syscall);
if (path != nullptr) {
js_path = StringFromPath(isolate, path);
js_msg = String::Concat(js_msg, FIXED_ONE_BYTE_STRING(isolate, " '"));
js_msg = String::Concat(js_msg, js_path);
js_msg = String::Concat(js_msg, FIXED_ONE_BYTE_STRING(isolate, "'"));
}
if (dest != nullptr) {
js_dest = StringFromPath(isolate, dest);
js_msg = String::Concat(js_msg, FIXED_ONE_BYTE_STRING(isolate, " -> '"));
js_msg = String::Concat(js_msg, js_dest);
js_msg = String::Concat(js_msg, FIXED_ONE_BYTE_STRING(isolate, "'"));
}
Local<Object> e = Exception::Error(js_msg)->ToObject(isolate);
e->Set(env->errno_string(), Integer::New(isolate, errorno));
e->Set(env->code_string(), js_code);
e->Set(env->syscall_string(), js_syscall);
if (!js_path.IsEmpty())
e->Set(env->path_string(), js_path);
if (!js_dest.IsEmpty())
e->Set(env->dest_string(), js_dest);
return e;
}
// Look up environment variable unless running as setuid root.
bool SafeGetenv(const char* key, std::string* text) {
#if !defined(__CloudABI__) && !defined(_WIN32)
if (linux_at_secure || getuid() != geteuid() || getgid() != getegid())
goto fail;
#endif
if (const char* value = getenv(key)) {
*text = value;
return true;
}
fail:
text->clear();
return false;
}
#ifdef _WIN32
// Does about the same as strerror(),
// but supports all windows error messages
static const char *winapi_strerror(const int errorno, bool* must_free) {
char *errmsg = nullptr;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS, nullptr, errorno,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&errmsg, 0, nullptr);
if (errmsg) {
*must_free = true;
// Remove trailing newlines
for (int i = strlen(errmsg) - 1;
i >= 0 && (errmsg[i] == '\n' || errmsg[i] == '\r'); i--) {
errmsg[i] = '\0';
}
return errmsg;
} else {
// FormatMessage failed
*must_free = false;
return "Unknown error";
}
}
Local<Value> WinapiErrnoException(Isolate* isolate,
int errorno,
const char* syscall,
const char* msg,
const char* path) {
Environment* env = Environment::GetCurrent(isolate);
Local<Value> e;
bool must_free = false;
if (!msg || !msg[0]) {
msg = winapi_strerror(errorno, &must_free);
}
Local<String> message = OneByteString(env->isolate(), msg);
if (path) {
Local<String> cons1 =
String::Concat(message, FIXED_ONE_BYTE_STRING(isolate, " '"));
Local<String> cons2 =
String::Concat(cons1, String::NewFromUtf8(isolate, path));
Local<String> cons3 =
String::Concat(cons2, FIXED_ONE_BYTE_STRING(isolate, "'"));
e = Exception::Error(cons3);
} else {
e = Exception::Error(message);
}
Local<Object> obj = e->ToObject(env->isolate());
obj->Set(env->errno_string(), Integer::New(isolate, errorno));
if (path != nullptr) {
obj->Set(env->path_string(), String::NewFromUtf8(isolate, path));
}
if (syscall != nullptr) {
obj->Set(env->syscall_string(), OneByteString(isolate, syscall));
}
if (must_free)
LocalFree((HLOCAL)msg);
return e;
}
#endif
void* ArrayBufferAllocator::Allocate(size_t size) {
if (zero_fill_field_ || zero_fill_all_buffers)
return node::UncheckedCalloc(size);
else
return node::UncheckedMalloc(size);
}
namespace {
bool DomainHasErrorHandler(const Environment* env,
const Local<Object>& domain) {
HandleScope scope(env->isolate());
Local<Value> domain_event_listeners_v = domain->Get(env->events_string());
if (!domain_event_listeners_v->IsObject())
return false;
Local<Object> domain_event_listeners_o =
domain_event_listeners_v.As<Object>();
Local<Value> domain_error_listeners_v =
domain_event_listeners_o->Get(env->error_string());
if (domain_error_listeners_v->IsFunction() ||
(domain_error_listeners_v->IsArray() &&
domain_error_listeners_v.As<Array>()->Length() > 0))
return true;
return false;
}
bool DomainsStackHasErrorHandler(const Environment* env) {
HandleScope scope(env->isolate());
if (!env->using_domains())
return false;
Local<Array> domains_stack_array = env->domains_stack_array().As<Array>();
if (domains_stack_array->Length() == 0)
return false;
uint32_t domains_stack_length = domains_stack_array->Length();
for (uint32_t i = domains_stack_length; i > 0; --i) {
Local<Value> domain_v = domains_stack_array->Get(i - 1);
if (!domain_v->IsObject())
return false;
Local<Object> domain = domain_v.As<Object>();
if (DomainHasErrorHandler(env, domain))
return true;
}
return false;
}
bool ShouldAbortOnUncaughtException(Isolate* isolate) {
HandleScope scope(isolate);
Environment* env = Environment::GetCurrent(isolate);
Local<Object> process_object = env->process_object();
Local<String> emitting_top_level_domain_error_key =
env->emitting_top_level_domain_error_string();
bool isEmittingTopLevelDomainError =
process_object->Get(emitting_top_level_domain_error_key)->BooleanValue();
return isEmittingTopLevelDomainError || !DomainsStackHasErrorHandler(env);
}
Local<Value> GetDomainProperty(Environment* env, Local<Object> object) {
Local<Value> domain_v =
object->GetPrivate(env->context(), env->domain_private_symbol())
.ToLocalChecked();
if (domain_v->IsObject()) {
return domain_v;
}
return object->Get(env->context(), env->domain_string()).ToLocalChecked();
}
void DomainEnter(Environment* env, Local<Object> object) {
Local<Value> domain_v = GetDomainProperty(env, object);
if (domain_v->IsObject()) {
Local<Object> domain = domain_v.As<Object>();
Local<Value> enter_v = domain->Get(env->enter_string());
if (enter_v->IsFunction()) {
if (enter_v.As<Function>()->Call(domain, 0, nullptr).IsEmpty()) {
FatalError("node::AsyncWrap::MakeCallback",
"domain enter callback threw, please report this");
}
}
}
}
void DomainExit(Environment* env, v8::Local<v8::Object> object) {
Local<Value> domain_v = GetDomainProperty(env, object);
if (domain_v->IsObject()) {
Local<Object> domain = domain_v.As<Object>();
Local<Value> exit_v = domain->Get(env->exit_string());
if (exit_v->IsFunction()) {
if (exit_v.As<Function>()->Call(domain, 0, nullptr).IsEmpty()) {
FatalError("node::AsyncWrap::MakeCallback",
"domain exit callback threw, please report this");
}
}
}
}
void SetupDomainUse(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
if (env->using_domains())
return;
env->set_using_domains(true);
HandleScope scope(env->isolate());
Local<Object> process_object = env->process_object();
CHECK(args[0]->IsArray());
env->set_domains_stack_array(args[0].As<Array>());
// Do a little housekeeping.
env->process_object()->Delete(
env->context(),
FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupDomainUse")).FromJust();
}
void RunMicrotasks(const FunctionCallbackInfo<Value>& args) {
args.GetIsolate()->RunMicrotasks();
}
void SetupProcessObject(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
CHECK(args[0]->IsFunction());
env->set_push_values_to_array_function(args[0].As<Function>());
env->process_object()->Delete(
env->context(),
FIXED_ONE_BYTE_STRING(env->isolate(), "_setupProcessObject")).FromJust();
}
void SetupNextTick(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
CHECK(args[0]->IsFunction());
CHECK(args[1]->IsObject());
env->set_tick_callback_function(args[0].As<Function>());
env->SetMethod(args[1].As<Object>(), "runMicrotasks", RunMicrotasks);
// Do a little housekeeping.
env->process_object()->Delete(
env->context(),
FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupNextTick")).FromJust();
// Values use to cross communicate with processNextTick.
uint32_t* const fields = env->tick_info()->fields();
uint32_t const fields_count = env->tick_info()->fields_count();
Local<ArrayBuffer> array_buffer =
ArrayBuffer::New(env->isolate(), fields, sizeof(*fields) * fields_count);
args.GetReturnValue().Set(Uint32Array::New(array_buffer, 0, fields_count));
}
void PromiseRejectCallback(PromiseRejectMessage message) {
Local<Promise> promise = message.GetPromise();
Isolate* isolate = promise->GetIsolate();
Local<Value> value = message.GetValue();
Local<Integer> event = Integer::New(isolate, message.GetEvent());
Environment* env = Environment::GetCurrent(isolate);
Local<Function> callback = env->promise_reject_function();
if (value.IsEmpty())
value = Undefined(isolate);
Local<Value> args[] = { event, promise, value };
Local<Object> process = env->process_object();
callback->Call(process, arraysize(args), args);
}
void SetupPromises(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
Isolate* isolate = env->isolate();
CHECK(args[0]->IsFunction());
isolate->SetPromiseRejectCallback(PromiseRejectCallback);
env->set_promise_reject_function(args[0].As<Function>());
env->process_object()->Delete(
env->context(),
FIXED_ONE_BYTE_STRING(isolate, "_setupPromises")).FromJust();
}
} // anonymous namespace
void AddPromiseHook(v8::Isolate* isolate, promise_hook_func fn, void* arg) {
Environment* env = Environment::GetCurrent(isolate);
env->AddPromiseHook(fn, arg);
}
CallbackScope::CallbackScope(Isolate* isolate,
Local<Object> object,
async_context asyncContext)
: private_(new InternalCallbackScope(Environment::GetCurrent(isolate),
object,
asyncContext)),
try_catch_(isolate) {
try_catch_.SetVerbose(true);
}
CallbackScope::~CallbackScope() {
if (try_catch_.HasCaught())
private_->MarkAsFailed();
delete private_;
}