| #include "node.h" |
| #include "node_buffer.h" |
| #include "node_constants.h" |
| #include "node_file.h" |
| #include "node_http_parser.h" |
| #include "node_javascript.h" |
| #include "node_version.h" |
| #include "node_v8_platform.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 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.h" |
| #include "async-wrap-inl.h" |
| #include "env.h" |
| #include "env-inl.h" |
| #include "handle_wrap.h" |
| #include "req_wrap.h" |
| #include "string_bytes.h" |
| #include "util.h" |
| #include "uv.h" |
| #include "v8-debug.h" |
| #include "v8-profiler.h" |
| #include "zlib.h" |
| |
| #include <errno.h> |
| #include <limits.h> // PATH_MAX |
| #include <locale.h> |
| #include <signal.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| |
| #if defined(_MSC_VER) |
| #include <direct.h> |
| #include <io.h> |
| #include <process.h> |
| #define strcasecmp _stricmp |
| #define getpid _getpid |
| #define umask _umask |
| typedef int mode_t; |
| #else |
| #include <sys/resource.h> // getrlimit, setrlimit |
| #include <unistd.h> // setuid, getuid |
| #endif |
| |
| #if defined(__POSIX__) && !defined(__ANDROID__) |
| #include <pwd.h> // getpwnam() |
| #include <grp.h> // getgrnam() |
| #endif |
| |
| #ifdef __APPLE__ |
| #include <crt_externs.h> |
| #define environ (*_NSGetEnviron()) |
| #elif !defined(_MSC_VER) |
| extern char **environ; |
| #endif |
| |
| namespace node { |
| |
| using v8::Array; |
| using v8::ArrayBuffer; |
| using v8::Boolean; |
| using v8::Context; |
| using v8::EscapableHandleScope; |
| using v8::Exception; |
| using v8::Function; |
| using v8::FunctionCallbackInfo; |
| using v8::FunctionTemplate; |
| using v8::Handle; |
| using v8::HandleScope; |
| using v8::HeapStatistics; |
| using v8::Integer; |
| using v8::Isolate; |
| using v8::Local; |
| using v8::Locker; |
| using v8::Message; |
| using v8::Number; |
| using v8::Object; |
| using v8::ObjectTemplate; |
| using v8::PropertyCallbackInfo; |
| using v8::String; |
| using v8::TryCatch; |
| using v8::Uint32; |
| using v8::V8; |
| using v8::Value; |
| using v8::kExternalUint32Array; |
| |
| static bool print_eval = false; |
| static bool force_repl = false; |
| static bool trace_deprecation = false; |
| static bool throw_deprecation = false; |
| static const char* eval_string = nullptr; |
| static bool use_debug_agent = false; |
| static bool debug_wait_connect = false; |
| static int debug_port = 5858; |
| 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_linked; |
| static node_module* modlist_addon; |
| |
| #if defined(NODE_HAVE_I18N_SUPPORT) |
| // Path to ICU data (for i18n / Intl) |
| static const char* icu_data_dir = nullptr; |
| #endif |
| |
| // used by C++ modules as well |
| bool no_deprecation = false; |
| |
| // process-relative uptime base, initialized at start-up |
| static double prog_start_time; |
| static bool debugger_running; |
| static uv_async_t dispatch_debug_messages_async; |
| |
| static Isolate* node_isolate = nullptr; |
| |
| int WRITE_UTF8_FLAGS = v8::String::HINT_MANY_WRITES_EXPECTED | |
| v8::String::NO_NULL_TERMINATION; |
| |
| class ArrayBufferAllocator : public ArrayBuffer::Allocator { |
| public: |
| // Impose an upper limit to avoid out of memory errors that bring down |
| // the process. |
| static const size_t kMaxLength = 0x3fffffff; |
| static ArrayBufferAllocator the_singleton; |
| virtual ~ArrayBufferAllocator() = default; |
| virtual void* Allocate(size_t length) override; |
| virtual void* AllocateUninitialized(size_t length) override; |
| virtual void Free(void* data, size_t length) override; |
| private: |
| ArrayBufferAllocator() = default; |
| DISALLOW_COPY_AND_ASSIGN(ArrayBufferAllocator); |
| }; |
| |
| ArrayBufferAllocator ArrayBufferAllocator::the_singleton; |
| |
| |
| void* ArrayBufferAllocator::Allocate(size_t length) { |
| if (length > kMaxLength) |
| return nullptr; |
| char* data = new char[length]; |
| memset(data, 0, length); |
| return data; |
| } |
| |
| |
| void* ArrayBufferAllocator::AllocateUninitialized(size_t length) { |
| if (length > kMaxLength) |
| return nullptr; |
| return new char[length]; |
| } |
| |
| |
| void ArrayBufferAllocator::Free(void* data, size_t length) { |
| delete[] static_cast<char*>(data); |
| } |
| |
| |
| static void CheckImmediate(uv_check_t* handle) { |
| Environment* env = Environment::from_immediate_check_handle(handle); |
| HandleScope scope(env->isolate()); |
| Context::Scope context_scope(env->context()); |
| MakeCallback(env, env->process_object(), env->immediate_callback_string()); |
| } |
| |
| |
| static void IdleImmediateDummy(uv_idle_t* handle) { |
| // Do nothing. Only for maintaining event loop. |
| // TODO(bnoordhuis) Maybe make libuv accept nullptr idle callbacks. |
| } |
| |
| |
| static inline const char *errno_string(int errorno) { |
| #define ERRNO_CASE(e) case e: return #e; |
| switch (errorno) { |
| #ifdef EACCES |
| ERRNO_CASE(EACCES); |
| #endif |
| |
| #ifdef EADDRINUSE |
| ERRNO_CASE(EADDRINUSE); |
| #endif |
| |
| #ifdef EADDRNOTAVAIL |
| ERRNO_CASE(EADDRNOTAVAIL); |
| #endif |
| |
| #ifdef EAFNOSUPPORT |
| ERRNO_CASE(EAFNOSUPPORT); |
| #endif |
| |
| #ifdef EAGAIN |
| ERRNO_CASE(EAGAIN); |
| #endif |
| |
| #ifdef EWOULDBLOCK |
| # if EAGAIN != EWOULDBLOCK |
| ERRNO_CASE(EWOULDBLOCK); |
| # endif |
| #endif |
| |
| #ifdef EALREADY |
| ERRNO_CASE(EALREADY); |
| #endif |
| |
| #ifdef EBADF |
| ERRNO_CASE(EBADF); |
| #endif |
| |
| #ifdef EBADMSG |
| ERRNO_CASE(EBADMSG); |
| #endif |
| |
| #ifdef EBUSY |
| ERRNO_CASE(EBUSY); |
| #endif |
| |
| #ifdef ECANCELED |
| ERRNO_CASE(ECANCELED); |
| #endif |
| |
| #ifdef ECHILD |
| ERRNO_CASE(ECHILD); |
| #endif |
| |
| #ifdef ECONNABORTED |
| ERRNO_CASE(ECONNABORTED); |
| #endif |
| |
| #ifdef ECONNREFUSED |
| ERRNO_CASE(ECONNREFUSED); |
| #endif |
| |
| #ifdef ECONNRESET |
| ERRNO_CASE(ECONNRESET); |
| #endif |
| |
| #ifdef EDEADLK |
| ERRNO_CASE(EDEADLK); |
| #endif |
| |
| #ifdef EDESTADDRREQ |
| ERRNO_CASE(EDESTADDRREQ); |
| #endif |
| |
| #ifdef EDOM |
| ERRNO_CASE(EDOM); |
| #endif |
| |
| #ifdef EDQUOT |
| ERRNO_CASE(EDQUOT); |
| #endif |
| |
| #ifdef EEXIST |
| ERRNO_CASE(EEXIST); |
| #endif |
| |
| #ifdef EFAULT |
| ERRNO_CASE(EFAULT); |
| #endif |
| |
| #ifdef EFBIG |
| ERRNO_CASE(EFBIG); |
| #endif |
| |
| #ifdef EHOSTUNREACH |
| ERRNO_CASE(EHOSTUNREACH); |
| #endif |
| |
| #ifdef EIDRM |
| ERRNO_CASE(EIDRM); |
| #endif |
| |
| #ifdef EILSEQ |
| ERRNO_CASE(EILSEQ); |
| #endif |
| |
| #ifdef EINPROGRESS |
| ERRNO_CASE(EINPROGRESS); |
| #endif |
| |
| #ifdef EINTR |
| ERRNO_CASE(EINTR); |
| #endif |
| |
| #ifdef EINVAL |
| ERRNO_CASE(EINVAL); |
| #endif |
| |
| #ifdef EIO |
| ERRNO_CASE(EIO); |
| #endif |
| |
| #ifdef EISCONN |
| ERRNO_CASE(EISCONN); |
| #endif |
| |
| #ifdef EISDIR |
| ERRNO_CASE(EISDIR); |
| #endif |
| |
| #ifdef ELOOP |
| ERRNO_CASE(ELOOP); |
| #endif |
| |
| #ifdef EMFILE |
| ERRNO_CASE(EMFILE); |
| #endif |
| |
| #ifdef EMLINK |
| ERRNO_CASE(EMLINK); |
| #endif |
| |
| #ifdef EMSGSIZE |
| ERRNO_CASE(EMSGSIZE); |
| #endif |
| |
| #ifdef EMULTIHOP |
| ERRNO_CASE(EMULTIHOP); |
| #endif |
| |
| #ifdef ENAMETOOLONG |
| ERRNO_CASE(ENAMETOOLONG); |
| #endif |
| |
| #ifdef ENETDOWN |
| ERRNO_CASE(ENETDOWN); |
| #endif |
| |
| #ifdef ENETRESET |
| ERRNO_CASE(ENETRESET); |
| #endif |
| |
| #ifdef ENETUNREACH |
| ERRNO_CASE(ENETUNREACH); |
| #endif |
| |
| #ifdef ENFILE |
| ERRNO_CASE(ENFILE); |
| #endif |
| |
| #ifdef ENOBUFS |
| ERRNO_CASE(ENOBUFS); |
| #endif |
| |
| #ifdef ENODATA |
| ERRNO_CASE(ENODATA); |
| #endif |
| |
| #ifdef ENODEV |
| ERRNO_CASE(ENODEV); |
| #endif |
| |
| #ifdef ENOENT |
| ERRNO_CASE(ENOENT); |
| #endif |
| |
| #ifdef ENOEXEC |
| ERRNO_CASE(ENOEXEC); |
| #endif |
| |
| #ifdef ENOLINK |
| ERRNO_CASE(ENOLINK); |
| #endif |
| |
| #ifdef ENOLCK |
| # if ENOLINK != ENOLCK |
| ERRNO_CASE(ENOLCK); |
| # endif |
| #endif |
| |
| #ifdef ENOMEM |
| ERRNO_CASE(ENOMEM); |
| #endif |
| |
| #ifdef ENOMSG |
| ERRNO_CASE(ENOMSG); |
| #endif |
| |
| #ifdef ENOPROTOOPT |
| ERRNO_CASE(ENOPROTOOPT); |
| #endif |
| |
| #ifdef ENOSPC |
| ERRNO_CASE(ENOSPC); |
| #endif |
| |
| #ifdef ENOSR |
| ERRNO_CASE(ENOSR); |
| #endif |
| |
| #ifdef ENOSTR |
| ERRNO_CASE(ENOSTR); |
| #endif |
| |
| #ifdef ENOSYS |
| ERRNO_CASE(ENOSYS); |
| #endif |
| |
| #ifdef ENOTCONN |
| ERRNO_CASE(ENOTCONN); |
| #endif |
| |
| #ifdef ENOTDIR |
| ERRNO_CASE(ENOTDIR); |
| #endif |
| |
| #ifdef ENOTEMPTY |
| ERRNO_CASE(ENOTEMPTY); |
| #endif |
| |
| #ifdef ENOTSOCK |
| ERRNO_CASE(ENOTSOCK); |
| #endif |
| |
| #ifdef ENOTSUP |
| ERRNO_CASE(ENOTSUP); |
| #else |
| # ifdef EOPNOTSUPP |
| ERRNO_CASE(EOPNOTSUPP); |
| # endif |
| #endif |
| |
| #ifdef ENOTTY |
| ERRNO_CASE(ENOTTY); |
| #endif |
| |
| #ifdef ENXIO |
| ERRNO_CASE(ENXIO); |
| #endif |
| |
| |
| #ifdef EOVERFLOW |
| ERRNO_CASE(EOVERFLOW); |
| #endif |
| |
| #ifdef EPERM |
| ERRNO_CASE(EPERM); |
| #endif |
| |
| #ifdef EPIPE |
| ERRNO_CASE(EPIPE); |
| #endif |
| |
| #ifdef EPROTO |
| ERRNO_CASE(EPROTO); |
| #endif |
| |
| #ifdef EPROTONOSUPPORT |
| ERRNO_CASE(EPROTONOSUPPORT); |
| #endif |
| |
| #ifdef EPROTOTYPE |
| ERRNO_CASE(EPROTOTYPE); |
| #endif |
| |
| #ifdef ERANGE |
| ERRNO_CASE(ERANGE); |
| #endif |
| |
| #ifdef EROFS |
| ERRNO_CASE(EROFS); |
| #endif |
| |
| #ifdef ESPIPE |
| ERRNO_CASE(ESPIPE); |
| #endif |
| |
| #ifdef ESRCH |
| ERRNO_CASE(ESRCH); |
| #endif |
| |
| #ifdef ESTALE |
| ERRNO_CASE(ESTALE); |
| #endif |
| |
| #ifdef ETIME |
| ERRNO_CASE(ETIME); |
| #endif |
| |
| #ifdef ETIMEDOUT |
| ERRNO_CASE(ETIMEDOUT); |
| #endif |
| |
| #ifdef ETXTBSY |
| ERRNO_CASE(ETXTBSY); |
| #endif |
| |
| #ifdef EXDEV |
| ERRNO_CASE(EXDEV); |
| #endif |
| |
| default: return ""; |
| } |
| } |
| |
| 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 |
| SIGNO_CASE(SIGLOST); |
| #endif |
| |
| #ifdef SIGPWR |
| # if SIGPWR != SIGLOST |
| SIGNO_CASE(SIGPWR); |
| # endif |
| #endif |
| |
| #ifdef SIGSYS |
| SIGNO_CASE(SIGSYS); |
| #endif |
| |
| default: return ""; |
| } |
| } |
| |
| |
| // Convenience methods |
| |
| |
| void ThrowError(v8::Isolate* isolate, const char* errmsg) { |
| Environment::GetCurrent(isolate)->ThrowError(errmsg); |
| } |
| |
| |
| void ThrowTypeError(v8::Isolate* isolate, const char* errmsg) { |
| Environment::GetCurrent(isolate)->ThrowTypeError(errmsg); |
| } |
| |
| |
| void ThrowRangeError(v8::Isolate* isolate, const char* errmsg) { |
| Environment::GetCurrent(isolate)->ThrowRangeError(errmsg); |
| } |
| |
| |
| void ThrowErrnoException(v8::Isolate* isolate, |
| int errorno, |
| const char* syscall, |
| const char* message, |
| const char* path) { |
| Environment::GetCurrent(isolate)->ThrowErrnoException(errorno, |
| syscall, |
| message, |
| path); |
| } |
| |
| |
| void ThrowUVException(v8::Isolate* isolate, |
| int errorno, |
| const char* syscall, |
| const char* message, |
| const char* path, |
| const char* dest) { |
| Environment::GetCurrent(isolate) |
| ->ThrowUVException(errorno, syscall, message, path, dest); |
| } |
| |
| |
| 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> cons1 = |
| String::Concat(estring, FIXED_ONE_BYTE_STRING(env->isolate(), ", ")); |
| Local<String> cons2 = String::Concat(cons1, message); |
| |
| if (path) { |
| Local<String> cons3 = |
| String::Concat(cons2, FIXED_ONE_BYTE_STRING(env->isolate(), " '")); |
| Local<String> cons4 = |
| String::Concat(cons3, String::NewFromUtf8(env->isolate(), path)); |
| Local<String> cons5 = |
| String::Concat(cons4, FIXED_ONE_BYTE_STRING(env->isolate(), "'")); |
| e = Exception::Error(cons5); |
| } else { |
| e = Exception::Error(cons2); |
| } |
| |
| 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 != nullptr) { |
| obj->Set(env->path_string(), String::NewFromUtf8(env->isolate(), path)); |
| } |
| |
| 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); |
| |
| // TODO(piscisaureus) errno should probably go; the user has no way of |
| // knowing which uv errno value maps to which error. |
| 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. |
| inline const char* secure_getenv(const char* key) { |
| #ifndef _WIN32 |
| if (getuid() != geteuid() || getgid() != getegid()) |
| return nullptr; |
| #endif |
| return getenv(key); |
| } |
| |
| |
| #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 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(); |
| |
| Local<String> tick_callback_function_key = env->tick_domain_cb_string(); |
| Local<Function> tick_callback_function = |
| process_object->Get(tick_callback_function_key).As<Function>(); |
| |
| if (!tick_callback_function->IsFunction()) { |
| fprintf(stderr, "process._tickDomainCallback assigned to non-function\n"); |
| abort(); |
| } |
| |
| process_object->Set(env->tick_callback_string(), tick_callback_function); |
| env->set_tick_callback_function(tick_callback_function); |
| |
| CHECK(args[0]->IsArray()); |
| CHECK(args[1]->IsObject()); |
| |
| env->set_domain_array(args[0].As<Array>()); |
| |
| Local<Object> domain_flag_obj = args[1].As<Object>(); |
| Environment::DomainFlag* domain_flag = env->domain_flag(); |
| domain_flag_obj->SetIndexedPropertiesToExternalArrayData( |
| domain_flag->fields(), |
| kExternalUint32Array, |
| domain_flag->fields_count()); |
| |
| // Do a little housekeeping. |
| env->process_object()->Delete( |
| FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupDomainUse")); |
| } |
| |
| void RunMicrotasks(const FunctionCallbackInfo<Value>& args) { |
| args.GetIsolate()->RunMicrotasks(); |
| } |
| |
| |
| void SetupNextTick(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| CHECK(args[0]->IsObject()); |
| CHECK(args[1]->IsFunction()); |
| CHECK(args[2]->IsObject()); |
| |
| // Values use to cross communicate with processNextTick. |
| Local<Object> tick_info_obj = args[0].As<Object>(); |
| tick_info_obj->SetIndexedPropertiesToExternalArrayData( |
| env->tick_info()->fields(), |
| kExternalUint32Array, |
| env->tick_info()->fields_count()); |
| |
| env->set_tick_callback_function(args[1].As<Function>()); |
| |
| env->SetMethod(args[2].As<Object>(), "runMicrotasks", RunMicrotasks); |
| |
| // Do a little housekeeping. |
| env->process_object()->Delete( |
| FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupNextTick")); |
| } |
| |
| |
| Handle<Value> MakeCallback(Environment* env, |
| Handle<Value> recv, |
| const Handle<Function> callback, |
| int argc, |
| Handle<Value> argv[]) { |
| // If you hit this assertion, you forgot to enter the v8::Context first. |
| CHECK_EQ(env->context(), env->isolate()->GetCurrentContext()); |
| |
| Local<Object> process = env->process_object(); |
| Local<Object> object, domain; |
| bool has_async_queue = false; |
| bool has_domain = false; |
| |
| if (recv->IsObject()) { |
| object = recv.As<Object>(); |
| Local<Value> async_queue_v = object->Get(env->async_queue_string()); |
| if (async_queue_v->IsObject()) |
| has_async_queue = true; |
| } |
| |
| if (env->using_domains()) { |
| CHECK(recv->IsObject()); |
| Local<Value> domain_v = object->Get(env->domain_string()); |
| has_domain = domain_v->IsObject(); |
| if (has_domain) { |
| domain = domain_v.As<Object>(); |
| if (domain->Get(env->disposed_string())->IsTrue()) |
| return Undefined(env->isolate()); |
| } |
| } |
| |
| TryCatch try_catch; |
| try_catch.SetVerbose(true); |
| |
| if (has_domain) { |
| Local<Value> enter_v = domain->Get(env->enter_string()); |
| if (enter_v->IsFunction()) { |
| enter_v.As<Function>()->Call(domain, 0, nullptr); |
| if (try_catch.HasCaught()) |
| return Undefined(env->isolate()); |
| } |
| } |
| |
| if (has_async_queue) { |
| try_catch.SetVerbose(false); |
| env->async_hooks_pre_function()->Call(object, 0, nullptr); |
| if (try_catch.HasCaught()) |
| FatalError("node:;MakeCallback", "pre hook threw"); |
| try_catch.SetVerbose(true); |
| } |
| |
| Local<Value> ret = callback->Call(recv, argc, argv); |
| |
| if (has_async_queue) { |
| try_catch.SetVerbose(false); |
| env->async_hooks_post_function()->Call(object, 0, nullptr); |
| if (try_catch.HasCaught()) |
| FatalError("node::MakeCallback", "post hook threw"); |
| try_catch.SetVerbose(true); |
| } |
| |
| if (has_domain) { |
| Local<Value> exit_v = domain->Get(env->exit_string()); |
| if (exit_v->IsFunction()) { |
| exit_v.As<Function>()->Call(domain, 0, nullptr); |
| if (try_catch.HasCaught()) |
| return Undefined(env->isolate()); |
| } |
| } |
| env->tick_callback_function()->Call(process, 0, nullptr); |
| CHECK_EQ(env->context(), env->isolate()->GetCurrentContext()); |
| |
| if (try_catch.HasCaught()) { |
| return Undefined(env->isolate()); |
| } |
| |
| Environment::TickInfo* tick_info = env->tick_info(); |
| |
| if (tick_info->in_tick()) { |
| return ret; |
| } |
| |
| if (tick_info->length() == 0) { |
| env->isolate()->RunMicrotasks(); |
| } |
| |
| if (tick_info->length() == 0) { |
| tick_info->set_index(0); |
| return ret; |
| } |
| |
| tick_info->set_in_tick(true); |
| |
| // process nextTicks after call |
| env->tick_callback_function()->Call(process, 0, nullptr); |
| |
| tick_info->set_in_tick(false); |
| |
| if (try_catch.HasCaught()) { |
| tick_info->set_last_threw(true); |
| return Undefined(env->isolate()); |
| } |
| |
| return ret; |
| } |
| |
| |
| // Internal only. |
| Handle<Value> MakeCallback(Environment* env, |
| Handle<Object> recv, |
| uint32_t index, |
| int argc, |
| Handle<Value> argv[]) { |
| Local<Value> cb_v = recv->Get(index); |
| CHECK(cb_v->IsFunction()); |
| return MakeCallback(env, recv.As<Value>(), cb_v.As<Function>(), argc, argv); |
| } |
| |
| |
| Handle<Value> MakeCallback(Environment* env, |
| Handle<Object> recv, |
| Handle<String> symbol, |
| int argc, |
| Handle<Value> argv[]) { |
| Local<Value> cb_v = recv->Get(symbol); |
| CHECK(cb_v->IsFunction()); |
| return MakeCallback(env, recv.As<Value>(), cb_v.As<Function>(), argc, argv); |
| } |
| |
| |
| Handle<Value> MakeCallback(Environment* env, |
| Handle<Object> recv, |
| const char* method, |
| int argc, |
| Handle<Value> argv[]) { |
| Local<String> method_string = OneByteString(env->isolate(), method); |
| return MakeCallback(env, recv, method_string, argc, argv); |
| } |
| |
| |
| Handle<Value> MakeCallback(Isolate* isolate, |
| Handle<Object> recv, |
| const char* method, |
| int argc, |
| Handle<Value> argv[]) { |
| EscapableHandleScope handle_scope(isolate); |
| Local<Context> context = recv->CreationContext(); |
| Environment* env = Environment::GetCurrent(context); |
| Context::Scope context_scope(context); |
| return handle_scope.Escape( |
| Local<Value>::New(isolate, MakeCallback(env, recv, method, argc, argv))); |
| } |
| |
| |
| Handle<Value> MakeCallback(Isolate* isolate, |
| Handle<Object> recv, |
| Handle<String> symbol, |
| int argc, |
| Handle<Value> argv[]) { |
| EscapableHandleScope handle_scope(isolate); |
| Local<Context> context = recv->CreationContext(); |
| Environment* env = Environment::GetCurrent(context); |
| Context::Scope context_scope(context); |
| return handle_scope.Escape( |
| Local<Value>::New(isolate, MakeCallback(env, recv, symbol, argc, argv))); |
| } |
| |
| |
| Handle<Value> MakeCallback(Isolate* isolate, |
| Handle<Object> recv, |
| Handle<Function> callback, |
| int argc, |
| Handle<Value> argv[]) { |
| EscapableHandleScope handle_scope(isolate); |
| Local<Context> context = recv->CreationContext(); |
| Environment* env = Environment::GetCurrent(context); |
| Context::Scope context_scope(context); |
| return handle_scope.Escape(Local<Value>::New( |
| isolate, |
| MakeCallback(env, recv.As<Value>(), callback, argc, argv))); |
| } |
| |
| |
| enum encoding ParseEncoding(const char* encoding, |
| enum encoding default_encoding) { |
| switch (encoding[0]) { |
| case 'u': |
| // utf8, utf16le |
| if (encoding[1] == 't' && encoding[2] == 'f') { |
| // Skip `-` |
| encoding += encoding[3] == '-' ? 4 : 3; |
| if (encoding[0] == '8' && encoding[1] == '\0') |
| return UTF8; |
| if (strncmp(encoding, "16le", 4) == 0) |
| return UCS2; |
| |
| // ucs2 |
| } else if (encoding[1] == 'c' && encoding[2] == 's') { |
| encoding += encoding[3] == '-' ? 4 : 3; |
| if (encoding[0] == '2' && encoding[1] == '\0') |
| return UCS2; |
| } |
| break; |
| case 'b': |
| // binary |
| if (encoding[1] == 'i') { |
| if (strncmp(encoding + 2, "nary", 4) == 0) |
| return BINARY; |
| |
| // buffer |
| } else if (encoding[1] == 'u') { |
| if (strncmp(encoding + 2, "ffer", 4) == 0) |
| return BUFFER; |
| } |
| break; |
| case '\0': |
| return default_encoding; |
| default: |
| break; |
| } |
| |
| if (strcasecmp(encoding, "utf8") == 0) { |
| return UTF8; |
| } else if (strcasecmp(encoding, "utf-8") == 0) { |
| return UTF8; |
| } else if (strcasecmp(encoding, "ascii") == 0) { |
| return ASCII; |
| } else if (strcasecmp(encoding, "base64") == 0) { |
| return BASE64; |
| } else if (strcasecmp(encoding, "ucs2") == 0) { |
| return UCS2; |
| } else if (strcasecmp(encoding, "ucs-2") == 0) { |
| return UCS2; |
| } else if (strcasecmp(encoding, "utf16le") == 0) { |
| return UCS2; |
| } else if (strcasecmp(encoding, "utf-16le") == 0) { |
| return UCS2; |
| } else if (strcasecmp(encoding, "binary") == 0) { |
| return BINARY; |
| } else if (strcasecmp(encoding, "buffer") == 0) { |
| return BUFFER; |
| } else if (strcasecmp(encoding, "hex") == 0) { |
| return HEX; |
| } else if (strcasecmp(encoding, "raw") == 0) { |
| if (!no_deprecation) { |
| fprintf(stderr, "'raw' (array of integers) has been removed. " |
| "Use 'binary'.\n"); |
| } |
| return BINARY; |
| } else if (strcasecmp(encoding, "raws") == 0) { |
| if (!no_deprecation) { |
| fprintf(stderr, "'raws' encoding has been renamed to 'binary'. " |
| "Please update your code.\n"); |
| } |
| return BINARY; |
| } else { |
| return default_encoding; |
| } |
| } |
| |
| |
| enum encoding ParseEncoding(Isolate* isolate, |
| Handle<Value> encoding_v, |
| enum encoding default_encoding) { |
| if (!encoding_v->IsString()) |
| return default_encoding; |
| |
| node::Utf8Value encoding(isolate, encoding_v); |
| |
| return ParseEncoding(*encoding, default_encoding); |
| } |
| |
| Local<Value> Encode(Isolate* isolate, |
| const char* buf, |
| size_t len, |
| enum encoding encoding) { |
| CHECK_NE(encoding, UCS2); |
| return StringBytes::Encode(isolate, buf, len, encoding); |
| } |
| |
| Local<Value> Encode(Isolate* isolate, const uint16_t* buf, size_t len) { |
| return StringBytes::Encode(isolate, buf, len); |
| } |
| |
| // Returns -1 if the handle was not valid for decoding |
| ssize_t DecodeBytes(Isolate* isolate, |
| Handle<Value> val, |
| enum encoding encoding) { |
| HandleScope scope(isolate); |
| |
| if (val->IsArray()) { |
| fprintf(stderr, "'raw' encoding (array of integers) has been removed. " |
| "Use 'binary'.\n"); |
| UNREACHABLE(); |
| return -1; |
| } |
| |
| return StringBytes::Size(isolate, val, encoding); |
| } |
| |
| // Returns number of bytes written. |
| ssize_t DecodeWrite(Isolate* isolate, |
| char* buf, |
| size_t buflen, |
| Handle<Value> val, |
| enum encoding encoding) { |
| return StringBytes::Write(isolate, buf, buflen, val, encoding, nullptr); |
| } |
| |
| void AppendExceptionLine(Environment* env, |
| Handle<Value> er, |
| Handle<Message> message) { |
| if (message.IsEmpty()) |
| return; |
| |
| HandleScope scope(env->isolate()); |
| Local<Object> err_obj; |
| if (!er.IsEmpty() && er->IsObject()) { |
| err_obj = er.As<Object>(); |
| |
| // Do it only once per message |
| if (!err_obj->GetHiddenValue(env->processed_string()).IsEmpty()) |
| return; |
| err_obj->SetHiddenValue(env->processed_string(), True(env->isolate())); |
| } |
| |
| char arrow[1024]; |
| |
| // Print (filename):(line number): (message). |
| node::Utf8Value filename(env->isolate(), message->GetScriptResourceName()); |
| const char* filename_string = *filename; |
| int linenum = message->GetLineNumber(); |
| // Print line of source code. |
| node::Utf8Value sourceline(env->isolate(), message->GetSourceLine()); |
| const char* sourceline_string = *sourceline; |
| |
| // Because of how node modules work, all scripts are wrapped with a |
| // "function (module, exports, __filename, ...) {" |
| // to provide script local variables. |
| // |
| // When reporting errors on the first line of a script, this wrapper |
| // function is leaked to the user. There used to be a hack here to |
| // truncate off the first 62 characters, but it caused numerous other |
| // problems when vm.runIn*Context() methods were used for non-module |
| // code. |
| // |
| // If we ever decide to re-instate such a hack, the following steps |
| // must be taken: |
| // |
| // 1. Pass a flag around to say "this code was wrapped" |
| // 2. Update the stack frame output so that it is also correct. |
| // |
| // It would probably be simpler to add a line rather than add some |
| // number of characters to the first line, since V8 truncates the |
| // sourceline to 78 characters, and we end up not providing very much |
| // useful debugging info to the user if we remove 62 characters. |
| |
| int start = message->GetStartColumn(); |
| int end = message->GetEndColumn(); |
| |
| int off = snprintf(arrow, |
| sizeof(arrow), |
| "%s:%i\n%s\n", |
| filename_string, |
| linenum, |
| sourceline_string); |
| CHECK_GE(off, 0); |
| |
| // Print wavy underline (GetUnderline is deprecated). |
| for (int i = 0; i < start; i++) { |
| if (sourceline_string[i] == '\0' || |
| static_cast<size_t>(off) >= sizeof(arrow)) { |
| break; |
| } |
| CHECK_LT(static_cast<size_t>(off), sizeof(arrow)); |
| arrow[off++] = (sourceline_string[i] == '\t') ? '\t' : ' '; |
| } |
| for (int i = start; i < end; i++) { |
| if (sourceline_string[i] == '\0' || |
| static_cast<size_t>(off) >= sizeof(arrow)) { |
| break; |
| } |
| CHECK_LT(static_cast<size_t>(off), sizeof(arrow)); |
| arrow[off++] = '^'; |
| } |
| CHECK_LE(static_cast<size_t>(off - 1), sizeof(arrow) - 1); |
| arrow[off++] = '\n'; |
| arrow[off] = '\0'; |
| |
| Local<String> arrow_str = String::NewFromUtf8(env->isolate(), arrow); |
| Local<Value> msg; |
| Local<Value> stack; |
| |
| // Allocation failed, just print it out |
| if (arrow_str.IsEmpty() || err_obj.IsEmpty() || !err_obj->IsNativeError()) |
| goto print; |
| |
| msg = err_obj->Get(env->message_string()); |
| stack = err_obj->Get(env->stack_string()); |
| |
| if (msg.IsEmpty() || stack.IsEmpty()) |
| goto print; |
| |
| err_obj->Set(env->message_string(), |
| String::Concat(arrow_str, msg->ToString(env->isolate()))); |
| err_obj->Set(env->stack_string(), |
| String::Concat(arrow_str, stack->ToString(env->isolate()))); |
| return; |
| |
| print: |
| if (env->printed_error()) |
| return; |
| env->set_printed_error(true); |
| uv_tty_reset_mode(); |
| fprintf(stderr, "\n%s", arrow); |
| } |
| |
| |
| static void ReportException(Environment* env, |
| Handle<Value> er, |
| Handle<Message> message) { |
| HandleScope scope(env->isolate()); |
| |
| AppendExceptionLine(env, er, message); |
| |
| Local<Value> trace_value; |
| |
| if (er->IsUndefined() || er->IsNull()) |
| trace_value = Undefined(env->isolate()); |
| else |
| trace_value = er->ToObject(env->isolate())->Get(env->stack_string()); |
| |
| node::Utf8Value trace(env->isolate(), trace_value); |
| |
| // range errors have a trace member set to undefined |
| if (trace.length() > 0 && !trace_value->IsUndefined()) { |
| fprintf(stderr, "%s\n", *trace); |
| } else { |
| // this really only happens for RangeErrors, since they're the only |
| // kind that won't have all this info in the trace, or when non-Error |
| // objects are thrown manually. |
| Local<Value> message; |
| Local<Value> name; |
| |
| if (er->IsObject()) { |
| Local<Object> err_obj = er.As<Object>(); |
| message = err_obj->Get(env->message_string()); |
| name = err_obj->Get(FIXED_ONE_BYTE_STRING(env->isolate(), "name")); |
| } |
| |
| if (message.IsEmpty() || |
| message->IsUndefined() || |
| name.IsEmpty() || |
| name->IsUndefined()) { |
| // Not an error object. Just print as-is. |
| node::Utf8Value message(env->isolate(), er); |
| fprintf(stderr, "%s\n", *message); |
| } else { |
| node::Utf8Value name_string(env->isolate(), name); |
| node::Utf8Value message_string(env->isolate(), message); |
| fprintf(stderr, "%s: %s\n", *name_string, *message_string); |
| } |
| } |
| |
| fflush(stderr); |
| } |
| |
| |
| static void ReportException(Environment* env, const TryCatch& try_catch) { |
| ReportException(env, try_catch.Exception(), try_catch.Message()); |
| } |
| |
| |
| // Executes a str within the current v8 context. |
| static Local<Value> ExecuteString(Environment* env, |
| Handle<String> source, |
| Handle<String> filename) { |
| EscapableHandleScope scope(env->isolate()); |
| TryCatch try_catch; |
| |
| // try_catch must be nonverbose to disable FatalException() handler, |
| // we will handle exceptions ourself. |
| try_catch.SetVerbose(false); |
| |
| Local<v8::Script> script = v8::Script::Compile(source, filename); |
| if (script.IsEmpty()) { |
| ReportException(env, try_catch); |
| exit(3); |
| } |
| |
| Local<Value> result = script->Run(); |
| if (result.IsEmpty()) { |
| ReportException(env, try_catch); |
| exit(4); |
| } |
| |
| return scope.Escape(result); |
| } |
| |
| |
| static void GetActiveRequests(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| Local<Array> ary = Array::New(args.GetIsolate()); |
| QUEUE* q = nullptr; |
| int i = 0; |
| |
| QUEUE_FOREACH(q, env->req_wrap_queue()) { |
| ReqWrap<uv_req_t>* w = ContainerOf(&ReqWrap<uv_req_t>::req_wrap_queue_, q); |
| if (w->persistent().IsEmpty()) |
| continue; |
| ary->Set(i++, w->object()); |
| } |
| |
| args.GetReturnValue().Set(ary); |
| } |
| |
| |
| // Non-static, friend of HandleWrap. Could have been a HandleWrap method but |
| // implemented here for consistency with GetActiveRequests(). |
| void GetActiveHandles(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| Local<Array> ary = Array::New(env->isolate()); |
| QUEUE* q = nullptr; |
| int i = 0; |
| |
| Local<String> owner_sym = env->owner_string(); |
| |
| QUEUE_FOREACH(q, env->handle_wrap_queue()) { |
| HandleWrap* w = ContainerOf(&HandleWrap::handle_wrap_queue_, q); |
| if (w->persistent().IsEmpty() || (w->flags_ & HandleWrap::kUnref)) |
| continue; |
| Local<Object> object = w->object(); |
| Local<Value> owner = object->Get(owner_sym); |
| if (owner->IsUndefined()) |
| owner = object; |
| ary->Set(i++, owner); |
| } |
| |
| args.GetReturnValue().Set(ary); |
| } |
| |
| |
| static void Abort(const FunctionCallbackInfo<Value>& args) { |
| abort(); |
| } |
| |
| |
| static void Chdir(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| if (args.Length() != 1 || !args[0]->IsString()) { |
| return env->ThrowTypeError("Bad argument."); |
| } |
| |
| node::Utf8Value path(args.GetIsolate(), args[0]); |
| int err = uv_chdir(*path); |
| if (err) { |
| return env->ThrowUVException(err, "uv_chdir"); |
| } |
| } |
| |
| |
| static void Cwd(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| #ifdef _WIN32 |
| /* MAX_PATH is in characters, not bytes. Make sure we have enough headroom. */ |
| char buf[MAX_PATH * 4]; |
| #else |
| char buf[PATH_MAX]; |
| #endif |
| |
| size_t cwd_len = sizeof(buf); |
| int err = uv_cwd(buf, &cwd_len); |
| if (err) { |
| return env->ThrowUVException(err, "uv_cwd"); |
| } |
| |
| Local<String> cwd = String::NewFromUtf8(env->isolate(), |
| buf, |
| String::kNormalString, |
| cwd_len); |
| args.GetReturnValue().Set(cwd); |
| } |
| |
| |
| static void Umask(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| uint32_t old; |
| |
| if (args.Length() < 1 || args[0]->IsUndefined()) { |
| old = umask(0); |
| umask(static_cast<mode_t>(old)); |
| } else if (!args[0]->IsInt32() && !args[0]->IsString()) { |
| return env->ThrowTypeError("argument must be an integer or octal string."); |
| } else { |
| int oct; |
| if (args[0]->IsInt32()) { |
| oct = args[0]->Uint32Value(); |
| } else { |
| oct = 0; |
| node::Utf8Value str(env->isolate(), args[0]); |
| |
| // Parse the octal string. |
| for (size_t i = 0; i < str.length(); i++) { |
| char c = (*str)[i]; |
| if (c > '7' || c < '0') { |
| return env->ThrowTypeError("invalid octal string"); |
| } |
| oct *= 8; |
| oct += c - '0'; |
| } |
| } |
| old = umask(static_cast<mode_t>(oct)); |
| } |
| |
| args.GetReturnValue().Set(old); |
| } |
| |
| |
| #if defined(__POSIX__) && !defined(__ANDROID__) |
| |
| static const uid_t uid_not_found = static_cast<uid_t>(-1); |
| static const gid_t gid_not_found = static_cast<gid_t>(-1); |
| |
| |
| static uid_t uid_by_name(const char* name) { |
| struct passwd pwd; |
| struct passwd* pp; |
| char buf[8192]; |
| |
| errno = 0; |
| pp = nullptr; |
| |
| if (getpwnam_r(name, &pwd, buf, sizeof(buf), &pp) == 0 && pp != nullptr) { |
| return pp->pw_uid; |
| } |
| |
| return uid_not_found; |
| } |
| |
| |
| static char* name_by_uid(uid_t uid) { |
| struct passwd pwd; |
| struct passwd* pp; |
| char buf[8192]; |
| int rc; |
| |
| errno = 0; |
| pp = nullptr; |
| |
| if ((rc = getpwuid_r(uid, &pwd, buf, sizeof(buf), &pp)) == 0 && |
| pp != nullptr) { |
| return strdup(pp->pw_name); |
| } |
| |
| if (rc == 0) { |
| errno = ENOENT; |
| } |
| |
| return nullptr; |
| } |
| |
| |
| static gid_t gid_by_name(const char* name) { |
| struct group pwd; |
| struct group* pp; |
| char buf[8192]; |
| |
| errno = 0; |
| pp = nullptr; |
| |
| if (getgrnam_r(name, &pwd, buf, sizeof(buf), &pp) == 0 && pp != nullptr) { |
| return pp->gr_gid; |
| } |
| |
| return gid_not_found; |
| } |
| |
| |
| #if 0 // For future use. |
| static const char* name_by_gid(gid_t gid) { |
| struct group pwd; |
| struct group* pp; |
| char buf[8192]; |
| int rc; |
| |
| errno = 0; |
| pp = nullptr; |
| |
| if ((rc = getgrgid_r(gid, &pwd, buf, sizeof(buf), &pp)) == 0 && |
| pp != nullptr) { |
| return strdup(pp->gr_name); |
| } |
| |
| if (rc == 0) { |
| errno = ENOENT; |
| } |
| |
| return nullptr; |
| } |
| #endif |
| |
| |
| static uid_t uid_by_name(Handle<Value> value) { |
| if (value->IsUint32()) { |
| return static_cast<uid_t>(value->Uint32Value()); |
| } else { |
| // TODO(trevnorris): Fix to not use GetCurrent(). |
| node::Utf8Value name(Isolate::GetCurrent(), value); |
| return uid_by_name(*name); |
| } |
| } |
| |
| |
| static gid_t gid_by_name(Handle<Value> value) { |
| if (value->IsUint32()) { |
| return static_cast<gid_t>(value->Uint32Value()); |
| } else { |
| // TODO(trevnorris): Fix to not use GetCurrent(). |
| node::Utf8Value name(Isolate::GetCurrent(), value); |
| return gid_by_name(*name); |
| } |
| } |
| |
| |
| static void GetUid(const FunctionCallbackInfo<Value>& args) { |
| // uid_t is an uint32_t on all supported platforms. |
| args.GetReturnValue().Set(static_cast<uint32_t>(getuid())); |
| } |
| |
| |
| static void GetGid(const FunctionCallbackInfo<Value>& args) { |
| // gid_t is an uint32_t on all supported platforms. |
| args.GetReturnValue().Set(static_cast<uint32_t>(getgid())); |
| } |
| |
| |
| static void SetGid(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| if (!args[0]->IsUint32() && !args[0]->IsString()) { |
| return env->ThrowTypeError("setgid argument must be a number or a string"); |
| } |
| |
| gid_t gid = gid_by_name(args[0]); |
| |
| if (gid == gid_not_found) { |
| return env->ThrowError("setgid group id does not exist"); |
| } |
| |
| if (setgid(gid)) { |
| return env->ThrowErrnoException(errno, "setgid"); |
| } |
| } |
| |
| |
| static void SetUid(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| if (!args[0]->IsUint32() && !args[0]->IsString()) { |
| return env->ThrowTypeError("setuid argument must be a number or a string"); |
| } |
| |
| uid_t uid = uid_by_name(args[0]); |
| |
| if (uid == uid_not_found) { |
| return env->ThrowError("setuid user id does not exist"); |
| } |
| |
| if (setuid(uid)) { |
| return env->ThrowErrnoException(errno, "setuid"); |
| } |
| } |
| |
| |
| static void GetGroups(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| int ngroups = getgroups(0, nullptr); |
| |
| if (ngroups == -1) { |
| return env->ThrowErrnoException(errno, "getgroups"); |
| } |
| |
| gid_t* groups = new gid_t[ngroups]; |
| |
| ngroups = getgroups(ngroups, groups); |
| |
| if (ngroups == -1) { |
| delete[] groups; |
| return env->ThrowErrnoException(errno, "getgroups"); |
| } |
| |
| Local<Array> groups_list = Array::New(env->isolate(), ngroups); |
| bool seen_egid = false; |
| gid_t egid = getegid(); |
| |
| for (int i = 0; i < ngroups; i++) { |
| groups_list->Set(i, Integer::New(env->isolate(), groups[i])); |
| if (groups[i] == egid) |
| seen_egid = true; |
| } |
| |
| delete[] groups; |
| |
| if (seen_egid == false) { |
| groups_list->Set(ngroups, Integer::New(env->isolate(), egid)); |
| } |
| |
| args.GetReturnValue().Set(groups_list); |
| } |
| |
| |
| static void SetGroups(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| if (!args[0]->IsArray()) { |
| return env->ThrowTypeError("argument 1 must be an array"); |
| } |
| |
| Local<Array> groups_list = args[0].As<Array>(); |
| size_t size = groups_list->Length(); |
| gid_t* groups = new gid_t[size]; |
| |
| for (size_t i = 0; i < size; i++) { |
| gid_t gid = gid_by_name(groups_list->Get(i)); |
| |
| if (gid == gid_not_found) { |
| delete[] groups; |
| return env->ThrowError("group name not found"); |
| } |
| |
| groups[i] = gid; |
| } |
| |
| int rc = setgroups(size, groups); |
| delete[] groups; |
| |
| if (rc == -1) { |
| return env->ThrowErrnoException(errno, "setgroups"); |
| } |
| } |
| |
| |
| static void InitGroups(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| if (!args[0]->IsUint32() && !args[0]->IsString()) { |
| return env->ThrowTypeError("argument 1 must be a number or a string"); |
| } |
| |
| if (!args[1]->IsUint32() && !args[1]->IsString()) { |
| return env->ThrowTypeError("argument 2 must be a number or a string"); |
| } |
| |
| node::Utf8Value arg0(env->isolate(), args[0]); |
| gid_t extra_group; |
| bool must_free; |
| char* user; |
| |
| if (args[0]->IsUint32()) { |
| user = name_by_uid(args[0]->Uint32Value()); |
| must_free = true; |
| } else { |
| user = *arg0; |
| must_free = false; |
| } |
| |
| if (user == nullptr) { |
| return env->ThrowError("initgroups user not found"); |
| } |
| |
| extra_group = gid_by_name(args[1]); |
| |
| if (extra_group == gid_not_found) { |
| if (must_free) |
| free(user); |
| return env->ThrowError("initgroups extra group not found"); |
| } |
| |
| int rc = initgroups(user, extra_group); |
| |
| if (must_free) { |
| free(user); |
| } |
| |
| if (rc) { |
| return env->ThrowErrnoException(errno, "initgroups"); |
| } |
| } |
| |
| #endif // __POSIX__ && !defined(__ANDROID__) |
| |
| |
| void Exit(const FunctionCallbackInfo<Value>& args) { |
| exit(args[0]->Int32Value()); |
| } |
| |
| |
| static void Uptime(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| double uptime; |
| |
| uv_update_time(env->event_loop()); |
| uptime = uv_now(env->event_loop()) - prog_start_time; |
| |
| args.GetReturnValue().Set(Number::New(env->isolate(), uptime / 1000)); |
| } |
| |
| |
| void MemoryUsage(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| size_t rss; |
| int err = uv_resident_set_memory(&rss); |
| if (err) { |
| return env->ThrowUVException(err, "uv_resident_set_memory"); |
| } |
| |
| // V8 memory usage |
| HeapStatistics v8_heap_stats; |
| env->isolate()->GetHeapStatistics(&v8_heap_stats); |
| |
| Local<Integer> heap_total = |
| Integer::NewFromUnsigned(env->isolate(), v8_heap_stats.total_heap_size()); |
| Local<Integer> heap_used = |
| Integer::NewFromUnsigned(env->isolate(), v8_heap_stats.used_heap_size()); |
| |
| Local<Object> info = Object::New(env->isolate()); |
| info->Set(env->rss_string(), Number::New(env->isolate(), rss)); |
| info->Set(env->heap_total_string(), heap_total); |
| info->Set(env->heap_used_string(), heap_used); |
| |
| args.GetReturnValue().Set(info); |
| } |
| |
| |
| void Kill(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| if (args.Length() != 2) { |
| return env->ThrowError("Bad argument."); |
| } |
| |
| int pid = args[0]->Int32Value(); |
| int sig = args[1]->Int32Value(); |
| int err = uv_kill(pid, sig); |
| args.GetReturnValue().Set(err); |
| } |
| |
| // used in Hrtime() below |
| #define NANOS_PER_SEC 1000000000 |
| |
| // Hrtime exposes libuv's uv_hrtime() high-resolution timer. |
| // The value returned by uv_hrtime() is a 64-bit int representing nanoseconds, |
| // so this function instead returns an Array with 2 entries representing seconds |
| // and nanoseconds, to avoid any integer overflow possibility. |
| // Pass in an Array from a previous hrtime() call to instead get a time diff. |
| void Hrtime(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| uint64_t t = uv_hrtime(); |
| |
| if (args.Length() > 0) { |
| // return a time diff tuple |
| if (!args[0]->IsArray()) { |
| return env->ThrowTypeError( |
| "process.hrtime() only accepts an Array tuple."); |
| } |
| Local<Array> inArray = Local<Array>::Cast(args[0]); |
| uint64_t seconds = inArray->Get(0)->Uint32Value(); |
| uint64_t nanos = inArray->Get(1)->Uint32Value(); |
| t -= (seconds * NANOS_PER_SEC) + nanos; |
| } |
| |
| Local<Array> tuple = Array::New(env->isolate(), 2); |
| tuple->Set(0, Integer::NewFromUnsigned(env->isolate(), t / NANOS_PER_SEC)); |
| tuple->Set(1, Integer::NewFromUnsigned(env->isolate(), t % NANOS_PER_SEC)); |
| args.GetReturnValue().Set(tuple); |
| } |
| |
| extern "C" void node_module_register(void* m) { |
| struct node_module* mp = reinterpret_cast<struct node_module*>(m); |
| |
| if (mp->nm_flags & NM_F_BUILTIN) { |
| mp->nm_link = modlist_builtin; |
| modlist_builtin = mp; |
| } else if (!node_is_initialized) { |
| // "Linked" modules are included as part of the node project. |
| // Like builtins they are registered *before* node::Init runs. |
| mp->nm_flags = NM_F_LINKED; |
| mp->nm_link = modlist_linked; |
| modlist_linked = mp; |
| } else { |
| modpending = mp; |
| } |
| } |
| |
| struct node_module* get_builtin_module(const char* name) { |
| struct node_module* mp; |
| |
| for (mp = modlist_builtin; mp != nullptr; mp = mp->nm_link) { |
| if (strcmp(mp->nm_modname, name) == 0) |
| break; |
| } |
| |
| CHECK(mp == nullptr || (mp->nm_flags & NM_F_BUILTIN) != 0); |
| return (mp); |
| } |
| |
| struct node_module* get_linked_module(const char* name) { |
| struct node_module* mp; |
| |
| for (mp = modlist_linked; mp != nullptr; mp = mp->nm_link) { |
| if (strcmp(mp->nm_modname, name) == 0) |
| break; |
| } |
| |
| CHECK(mp == nullptr || (mp->nm_flags & NM_F_LINKED) != 0); |
| return mp; |
| } |
| |
| typedef void (UV_DYNAMIC* extInit)(Handle<Object> exports); |
| |
| // DLOpen is process.dlopen(module, filename). |
| // Used to load 'module.node' dynamically shared objects. |
| // |
| // FIXME(bnoordhuis) Not multi-context ready. TBD how to resolve the conflict |
| // when two contexts try to load the same shared object. Maybe have a shadow |
| // cache that's a plain C list or hash table that's shared across contexts? |
| void DLOpen(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| uv_lib_t lib; |
| |
| CHECK_EQ(modpending, nullptr); |
| |
| if (args.Length() != 2) { |
| env->ThrowError("process.dlopen takes exactly 2 arguments."); |
| return; |
| } |
| |
| Local<Object> module = args[0]->ToObject(env->isolate()); // Cast |
| node::Utf8Value filename(env->isolate(), args[1]); // Cast |
| const bool is_dlopen_error = uv_dlopen(*filename, &lib); |
| |
| // Objects containing v14 or later modules will have registered themselves |
| // on the pending list. Activate all of them now. At present, only one |
| // module per object is supported. |
| node_module* const mp = modpending; |
| modpending = nullptr; |
| |
| if (is_dlopen_error) { |
| Local<String> errmsg = OneByteString(env->isolate(), uv_dlerror(&lib)); |
| #ifdef _WIN32 |
| // Windows needs to add the filename into the error message |
| errmsg = String::Concat(errmsg, args[1]->ToString(env->isolate())); |
| #endif // _WIN32 |
| env->isolate()->ThrowException(Exception::Error(errmsg)); |
| return; |
| } |
| |
| if (mp == nullptr) { |
| env->ThrowError("Module did not self-register."); |
| return; |
| } |
| if (mp->nm_version != NODE_MODULE_VERSION) { |
| char errmsg[1024]; |
| snprintf(errmsg, |
| sizeof(errmsg), |
| "Module version mismatch. Expected %d, got %d.", |
| NODE_MODULE_VERSION, mp->nm_version); |
| env->ThrowError(errmsg); |
| return; |
| } |
| if (mp->nm_flags & NM_F_BUILTIN) { |
| env->ThrowError("Built-in module self-registered."); |
| return; |
| } |
| |
| mp->nm_dso_handle = lib.handle; |
| mp->nm_link = modlist_addon; |
| modlist_addon = mp; |
| |
| Local<String> exports_string = env->exports_string(); |
| Local<Object> exports = module->Get(exports_string)->ToObject(env->isolate()); |
| |
| if (mp->nm_context_register_func != nullptr) { |
| mp->nm_context_register_func(exports, module, env->context(), mp->nm_priv); |
| } else if (mp->nm_register_func != nullptr) { |
| mp->nm_register_func(exports, module, mp->nm_priv); |
| } else { |
| env->ThrowError("Module has no declared entry point."); |
| return; |
| } |
| |
| // Tell coverity that 'handle' should not be freed when we return. |
| // coverity[leaked_storage] |
| } |
| |
| |
| static void OnFatalError(const char* location, const char* message) { |
| if (location) { |
| fprintf(stderr, "FATAL ERROR: %s %s\n", location, message); |
| } else { |
| fprintf(stderr, "FATAL ERROR: %s\n", message); |
| } |
| fflush(stderr); |
| abort(); |
| } |
| |
| |
| NO_RETURN void FatalError(const char* location, const char* message) { |
| OnFatalError(location, message); |
| // to supress compiler warning |
| abort(); |
| } |
| |
| |
| void FatalException(Isolate* isolate, |
| Handle<Value> error, |
| Handle<Message> message) { |
| HandleScope scope(isolate); |
| |
| Environment* env = Environment::GetCurrent(isolate); |
| Local<Object> process_object = env->process_object(); |
| Local<String> fatal_exception_string = env->fatal_exception_string(); |
| Local<Function> fatal_exception_function = |
| process_object->Get(fatal_exception_string).As<Function>(); |
| |
| if (!fatal_exception_function->IsFunction()) { |
| // failed before the process._fatalException function was added! |
| // this is probably pretty bad. Nothing to do but report and exit. |
| ReportException(env, error, message); |
| exit(6); |
| } |
| |
| TryCatch fatal_try_catch; |
| |
| // Do not call FatalException when _fatalException handler throws |
| fatal_try_catch.SetVerbose(false); |
| |
| // this will return true if the JS layer handled it, false otherwise |
| Local<Value> caught = |
| fatal_exception_function->Call(process_object, 1, &error); |
| |
| if (fatal_try_catch.HasCaught()) { |
| // the fatal exception function threw, so we must exit |
| ReportException(env, fatal_try_catch); |
| exit(7); |
| } |
| |
| if (false == caught->BooleanValue()) { |
| ReportException(env, error, message); |
| exit(1); |
| } |
| } |
| |
| |
| void FatalException(Isolate* isolate, const TryCatch& try_catch) { |
| HandleScope scope(isolate); |
| // TODO(bajtos) do not call FatalException if try_catch is verbose |
| // (requires V8 API to expose getter for try_catch.is_verbose_) |
| FatalException(isolate, try_catch.Exception(), try_catch.Message()); |
| } |
| |
| |
| void OnMessage(Handle<Message> message, Handle<Value> error) { |
| // The current version of V8 sends messages for errors only |
| // (thus `error` is always set). |
| FatalException(Isolate::GetCurrent(), error, message); |
| } |
| |
| |
| static void Binding(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| Local<String> module = args[0]->ToString(env->isolate()); |
| node::Utf8Value module_v(env->isolate(), module); |
| |
| Local<Object> cache = env->binding_cache_object(); |
| Local<Object> exports; |
| |
| if (cache->Has(module)) { |
| exports = cache->Get(module)->ToObject(env->isolate()); |
| args.GetReturnValue().Set(exports); |
| return; |
| } |
| |
| // Append a string to process.moduleLoadList |
| char buf[1024]; |
| snprintf(buf, sizeof(buf), "Binding %s", *module_v); |
| |
| Local<Array> modules = env->module_load_list_array(); |
| uint32_t l = modules->Length(); |
| modules->Set(l, OneByteString(env->isolate(), buf)); |
| |
| node_module* mod = get_builtin_module(*module_v); |
| if (mod != nullptr) { |
| exports = Object::New(env->isolate()); |
| // Internal bindings don't have a "module" object, only exports. |
| CHECK_EQ(mod->nm_register_func, nullptr); |
| CHECK_NE(mod->nm_context_register_func, nullptr); |
| Local<Value> unused = Undefined(env->isolate()); |
| mod->nm_context_register_func(exports, unused, |
| env->context(), mod->nm_priv); |
| cache->Set(module, exports); |
| } else if (!strcmp(*module_v, "constants")) { |
| exports = Object::New(env->isolate()); |
| DefineConstants(exports); |
| cache->Set(module, exports); |
| } else if (!strcmp(*module_v, "natives")) { |
| exports = Object::New(env->isolate()); |
| DefineJavaScript(env, exports); |
| cache->Set(module, exports); |
| } else { |
| char errmsg[1024]; |
| snprintf(errmsg, |
| sizeof(errmsg), |
| "No such module: %s", |
| *module_v); |
| return env->ThrowError(errmsg); |
| } |
| |
| args.GetReturnValue().Set(exports); |
| } |
| |
| static void LinkedBinding(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args.GetIsolate()); |
| |
| Local<String> module = args[0]->ToString(env->isolate()); |
| |
| Local<Object> cache = env->binding_cache_object(); |
| Local<Value> exports_v = cache->Get(module); |
| |
| if (exports_v->IsObject()) |
| return args.GetReturnValue().Set(exports_v.As<Object>()); |
| |
| node::Utf8Value module_v(env->isolate(), module); |
| node_module* mod = get_linked_module(*module_v); |
| |
| if (mod == nullptr) { |
| char errmsg[1024]; |
| snprintf(errmsg, |
| sizeof(errmsg), |
| "No such module was linked: %s", |
| *module_v); |
| return env->ThrowError(errmsg); |
| } |
| |
| Local<Object> exports = Object::New(env->isolate()); |
| |
| if (mod->nm_context_register_func != nullptr) { |
| mod->nm_context_register_func(exports, |
| module, |
| env->context(), |
| mod->nm_priv); |
| } else if (mod->nm_register_func != nullptr) { |
| mod->nm_register_func(exports, module, mod->nm_priv); |
| } else { |
| return env->ThrowError("Linked module has no declared entry point."); |
| } |
| |
| cache->Set(module, exports); |
| |
| args.GetReturnValue().Set(exports); |
| } |
| |
| static void ProcessTitleGetter(Local<String> property, |
| const PropertyCallbackInfo<Value>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| char buffer[512]; |
| uv_get_process_title(buffer, sizeof(buffer)); |
| info.GetReturnValue().Set(String::NewFromUtf8(env->isolate(), buffer)); |
| } |
| |
| |
| static void ProcessTitleSetter(Local<String> property, |
| Local<Value> value, |
| const PropertyCallbackInfo<void>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| node::Utf8Value title(env->isolate(), value); |
| // TODO(piscisaureus): protect with a lock |
| uv_set_process_title(*title); |
| } |
| |
| |
| static void EnvGetter(Local<String> property, |
| const PropertyCallbackInfo<Value>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| #ifdef __POSIX__ |
| node::Utf8Value key(env->isolate(), property); |
| const char* val = getenv(*key); |
| if (val) { |
| return info.GetReturnValue().Set(String::NewFromUtf8(env->isolate(), val)); |
| } |
| #else // _WIN32 |
| String::Value key(property); |
| WCHAR buffer[32767]; // The maximum size allowed for environment variables. |
| DWORD result = GetEnvironmentVariableW(reinterpret_cast<WCHAR*>(*key), |
| buffer, |
| ARRAY_SIZE(buffer)); |
| // If result >= sizeof buffer the buffer was too small. That should never |
| // happen. If result == 0 and result != ERROR_SUCCESS the variable was not |
| // not found. |
| if ((result > 0 || GetLastError() == ERROR_SUCCESS) && |
| result < ARRAY_SIZE(buffer)) { |
| const uint16_t* two_byte_buffer = reinterpret_cast<const uint16_t*>(buffer); |
| Local<String> rc = String::NewFromTwoByte(env->isolate(), two_byte_buffer); |
| return info.GetReturnValue().Set(rc); |
| } |
| #endif |
| // Not found. Fetch from prototype. |
| info.GetReturnValue().Set( |
| info.Data().As<Object>()->Get(property)); |
| } |
| |
| |
| static void EnvSetter(Local<String> property, |
| Local<Value> value, |
| const PropertyCallbackInfo<Value>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| #ifdef __POSIX__ |
| node::Utf8Value key(env->isolate(), property); |
| node::Utf8Value val(env->isolate(), value); |
| setenv(*key, *val, 1); |
| #else // _WIN32 |
| String::Value key(property); |
| String::Value val(value); |
| WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key); |
| // Environment variables that start with '=' are read-only. |
| if (key_ptr[0] != L'=') { |
| SetEnvironmentVariableW(key_ptr, reinterpret_cast<WCHAR*>(*val)); |
| } |
| #endif |
| // Whether it worked or not, always return rval. |
| info.GetReturnValue().Set(value); |
| } |
| |
| |
| static void EnvQuery(Local<String> property, |
| const PropertyCallbackInfo<Integer>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| int32_t rc = -1; // Not found unless proven otherwise. |
| #ifdef __POSIX__ |
| node::Utf8Value key(env->isolate(), property); |
| if (getenv(*key)) |
| rc = 0; |
| #else // _WIN32 |
| String::Value key(property); |
| WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key); |
| if (GetEnvironmentVariableW(key_ptr, nullptr, 0) > 0 || |
| GetLastError() == ERROR_SUCCESS) { |
| rc = 0; |
| if (key_ptr[0] == L'=') { |
| // Environment variables that start with '=' are hidden and read-only. |
| rc = static_cast<int32_t>(v8::ReadOnly) | |
| static_cast<int32_t>(v8::DontDelete) | |
| static_cast<int32_t>(v8::DontEnum); |
| } |
| } |
| #endif |
| if (rc != -1) |
| info.GetReturnValue().Set(rc); |
| } |
| |
| |
| static void EnvDeleter(Local<String> property, |
| const PropertyCallbackInfo<Boolean>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| bool rc = true; |
| #ifdef __POSIX__ |
| node::Utf8Value key(env->isolate(), property); |
| rc = getenv(*key) != nullptr; |
| if (rc) |
| unsetenv(*key); |
| #else |
| String::Value key(property); |
| WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key); |
| if (key_ptr[0] == L'=' || !SetEnvironmentVariableW(key_ptr, nullptr)) { |
| // Deletion failed. Return true if the key wasn't there in the first place, |
| // false if it is still there. |
| rc = GetEnvironmentVariableW(key_ptr, nullptr, 0) == 0 && |
| GetLastError() != ERROR_SUCCESS; |
| } |
| #endif |
| info.GetReturnValue().Set(rc); |
| } |
| |
| |
| static void EnvEnumerator(const PropertyCallbackInfo<Array>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| #ifdef __POSIX__ |
| int size = 0; |
| while (environ[size]) |
| size++; |
| |
| Local<Array> envarr = Array::New(env->isolate(), size); |
| |
| for (int i = 0; i < size; ++i) { |
| const char* var = environ[i]; |
| const char* s = strchr(var, '='); |
| const int length = s ? s - var : strlen(var); |
| Local<String> name = String::NewFromUtf8(env->isolate(), |
| var, |
| String::kNormalString, |
| length); |
| envarr->Set(i, name); |
| } |
| #else // _WIN32 |
| WCHAR* environment = GetEnvironmentStringsW(); |
| if (environment == nullptr) |
| return; // This should not happen. |
| Local<Array> envarr = Array::New(env->isolate()); |
| WCHAR* p = environment; |
| int i = 0; |
| while (*p) { |
| WCHAR *s; |
| if (*p == L'=') { |
| // If the key starts with '=' it is a hidden environment variable. |
| p += wcslen(p) + 1; |
| continue; |
| } else { |
| s = wcschr(p, L'='); |
| } |
| if (!s) { |
| s = p + wcslen(p); |
| } |
| const uint16_t* two_byte_buffer = reinterpret_cast<const uint16_t*>(p); |
| const size_t two_byte_buffer_len = s - p; |
| Local<String> value = String::NewFromTwoByte(env->isolate(), |
| two_byte_buffer, |
| String::kNormalString, |
| two_byte_buffer_len); |
| envarr->Set(i++, value); |
| p = s + wcslen(s) + 1; |
| } |
| FreeEnvironmentStringsW(environment); |
| #endif |
| |
| info.GetReturnValue().Set(envarr); |
| } |
| |
| |
| static Handle<Object> GetFeatures(Environment* env) { |
| EscapableHandleScope scope(env->isolate()); |
| |
| Local<Object> obj = Object::New(env->isolate()); |
| #if defined(DEBUG) && DEBUG |
| Local<Value> debug = True(env->isolate()); |
| #else |
| Local<Value> debug = False(env->isolate()); |
| #endif // defined(DEBUG) && DEBUG |
| |
| obj->Set(env->debug_string(), debug); |
| |
| obj->Set(env->uv_string(), True(env->isolate())); |
| // TODO(bnoordhuis) ping libuv |
| obj->Set(env->ipv6_lc_string(), True(env->isolate())); |
| |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| Local<Boolean> tls_npn = True(env->isolate()); |
| #else |
| Local<Boolean> tls_npn = False(env->isolate()); |
| #endif |
| obj->Set(env->tls_npn_string(), tls_npn); |
| |
| #ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB |
| Local<Boolean> tls_sni = True(env->isolate()); |
| #else |
| Local<Boolean> tls_sni = False(env->isolate()); |
| #endif |
| obj->Set(env->tls_sni_string(), tls_sni); |
| |
| #if !defined(OPENSSL_NO_TLSEXT) && defined(SSL_CTX_set_tlsext_status_cb) |
| Local<Boolean> tls_ocsp = True(env->isolate()); |
| #else |
| Local<Boolean> tls_ocsp = False(env->isolate()); |
| #endif // !defined(OPENSSL_NO_TLSEXT) && defined(SSL_CTX_set_tlsext_status_cb) |
| obj->Set(env->tls_ocsp_string(), tls_ocsp); |
| |
| obj->Set(env->tls_string(), |
| Boolean::New(env->isolate(), |
| get_builtin_module("crypto") != nullptr)); |
| |
| return scope.Escape(obj); |
| } |
| |
| |
| static void DebugPortGetter(Local<String> property, |
| const PropertyCallbackInfo<Value>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| info.GetReturnValue().Set(debug_port); |
| } |
| |
| |
| static void DebugPortSetter(Local<String> property, |
| Local<Value> value, |
| const PropertyCallbackInfo<void>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| HandleScope scope(env->isolate()); |
| debug_port = value->Int32Value(); |
| } |
| |
| |
| static void DebugProcess(const FunctionCallbackInfo<Value>& args); |
| static void DebugPause(const FunctionCallbackInfo<Value>& args); |
| static void DebugEnd(const FunctionCallbackInfo<Value>& args); |
| |
| |
| void NeedImmediateCallbackGetter(Local<String> property, |
| const PropertyCallbackInfo<Value>& info) { |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| const uv_check_t* immediate_check_handle = env->immediate_check_handle(); |
| bool active = uv_is_active( |
| reinterpret_cast<const uv_handle_t*>(immediate_check_handle)); |
| info.GetReturnValue().Set(active); |
| } |
| |
| |
| static void NeedImmediateCallbackSetter( |
| Local<String> property, |
| Local<Value> value, |
| const PropertyCallbackInfo<void>& info) { |
| HandleScope handle_scope(info.GetIsolate()); |
| Environment* env = Environment::GetCurrent(info.GetIsolate()); |
| |
| uv_check_t* immediate_check_handle = env->immediate_check_handle(); |
| bool active = uv_is_active( |
| reinterpret_cast<const uv_handle_t*>(immediate_check_handle)); |
| |
| if (active == value->BooleanValue()) |
| return; |
| |
| uv_idle_t* immediate_idle_handle = env->immediate_idle_handle(); |
| |
| if (active) { |
| uv_check_stop(immediate_check_handle); |
| uv_idle_stop(immediate_idle_handle); |
| } else { |
| uv_check_start(immediate_check_handle, CheckImmediate); |
| // Idle handle is needed only to stop the event loop from blocking in poll. |
| uv_idle_start(immediate_idle_handle, IdleImmediateDummy); |
| } |
| } |
| |
| |
| void SetIdle(uv_prepare_t* handle) { |
| Environment* env = Environment::from_idle_prepare_handle(handle); |
| env->isolate()->GetCpuProfiler()->SetIdle(true); |
| } |
| |
| |
| void ClearIdle(uv_check_t* handle) { |
| Environment* env = Environment::from_idle_check_handle(handle); |
| env->isolate()->GetCpuProfiler()->SetIdle(false); |
| } |
| |
| |
| void StartProfilerIdleNotifier(Environment* env) { |
| uv_prepare_start(env->idle_prepare_handle(), SetIdle); |
| uv_check_start(env->idle_check_handle(), ClearIdle); |
| } |
| |
| |
| void StopProfilerIdleNotifier(Environment* env) { |
| uv_prepare_stop(env->idle_prepare_handle()); |
| uv_check_stop(env->idle_check_handle()); |
| } |
| |
| |
| void StartProfilerIdleNotifier(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| StartProfilerIdleNotifier(env); |
| } |
| |
| |
| void StopProfilerIdleNotifier(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| StopProfilerIdleNotifier(env); |
| } |
| |
| |
| #define READONLY_PROPERTY(obj, str, var) \ |
| do { \ |
| obj->ForceSet(OneByteString(env->isolate(), str), var, v8::ReadOnly); \ |
| } while (0) |
| |
| |
| void SetupProcessObject(Environment* env, |
| int argc, |
| const char* const* argv, |
| int exec_argc, |
| const char* const* exec_argv) { |
| HandleScope scope(env->isolate()); |
| |
| Local<Object> process = env->process_object(); |
| |
| process->SetAccessor(env->title_string(), |
| ProcessTitleGetter, |
| ProcessTitleSetter); |
| |
| // process.version |
| READONLY_PROPERTY(process, |
| "version", |
| FIXED_ONE_BYTE_STRING(env->isolate(), NODE_VERSION)); |
| |
| // process.moduleLoadList |
| READONLY_PROPERTY(process, |
| "moduleLoadList", |
| env->module_load_list_array()); |
| |
| // process.versions |
| Local<Object> versions = Object::New(env->isolate()); |
| READONLY_PROPERTY(process, "versions", versions); |
| |
| const char http_parser_version[] = NODE_STRINGIFY(HTTP_PARSER_VERSION_MAJOR) |
| "." |
| NODE_STRINGIFY(HTTP_PARSER_VERSION_MINOR) |
| "." |
| NODE_STRINGIFY(HTTP_PARSER_VERSION_PATCH); |
| READONLY_PROPERTY(versions, |
| "http_parser", |
| FIXED_ONE_BYTE_STRING(env->isolate(), http_parser_version)); |
| |
| // +1 to get rid of the leading 'v' |
| READONLY_PROPERTY(versions, |
| "node", |
| OneByteString(env->isolate(), NODE_VERSION + 1)); |
| READONLY_PROPERTY(versions, |
| "v8", |
| OneByteString(env->isolate(), V8::GetVersion())); |
| READONLY_PROPERTY(versions, |
| "uv", |
| OneByteString(env->isolate(), uv_version_string())); |
| READONLY_PROPERTY(versions, |
| "zlib", |
| FIXED_ONE_BYTE_STRING(env->isolate(), ZLIB_VERSION)); |
| READONLY_PROPERTY(versions, |
| "ares", |
| FIXED_ONE_BYTE_STRING(env->isolate(), ARES_VERSION_STR)); |
| |
| const char node_modules_version[] = NODE_STRINGIFY(NODE_MODULE_VERSION); |
| READONLY_PROPERTY( |
| versions, |
| "modules", |
| FIXED_ONE_BYTE_STRING(env->isolate(), node_modules_version)); |
| |
| #if HAVE_OPENSSL |
| // Stupid code to slice out the version string. |
| { // NOLINT(whitespace/braces) |
| size_t i, j, k; |
| int c; |
| for (i = j = 0, k = sizeof(OPENSSL_VERSION_TEXT) - 1; i < k; ++i) { |
| c = OPENSSL_VERSION_TEXT[i]; |
| if ('0' <= c && c <= '9') { |
| for (j = i + 1; j < k; ++j) { |
| c = OPENSSL_VERSION_TEXT[j]; |
| if (c == ' ') |
| break; |
| } |
| break; |
| } |
| } |
| READONLY_PROPERTY( |
| versions, |
| "openssl", |
| OneByteString(env->isolate(), &OPENSSL_VERSION_TEXT[i], j - i)); |
| } |
| #endif |
| |
| // process.arch |
| READONLY_PROPERTY(process, "arch", OneByteString(env->isolate(), NODE_ARCH)); |
| |
| // process.platform |
| READONLY_PROPERTY(process, |
| "platform", |
| OneByteString(env->isolate(), NODE_PLATFORM)); |
| |
| // process.argv |
| Local<Array> arguments = Array::New(env->isolate(), argc); |
| for (int i = 0; i < argc; ++i) { |
| arguments->Set(i, String::NewFromUtf8(env->isolate(), argv[i])); |
| } |
| process->Set(env->argv_string(), arguments); |
| |
| // process.execArgv |
| Local<Array> exec_arguments = Array::New(env->isolate(), exec_argc); |
| for (int i = 0; i < exec_argc; ++i) { |
| exec_arguments->Set(i, String::NewFromUtf8(env->isolate(), exec_argv[i])); |
| } |
| process->Set(env->exec_argv_string(), exec_arguments); |
| |
| // create process.env |
| Local<ObjectTemplate> process_env_template = |
| ObjectTemplate::New(env->isolate()); |
| process_env_template->SetNamedPropertyHandler(EnvGetter, |
| EnvSetter, |
| EnvQuery, |
| EnvDeleter, |
| EnvEnumerator, |
| Object::New(env->isolate())); |
| Local<Object> process_env = process_env_template->NewInstance(); |
| process->Set(env->env_string(), process_env); |
| |
| READONLY_PROPERTY(process, "pid", Integer::New(env->isolate(), getpid())); |
| READONLY_PROPERTY(process, "features", GetFeatures(env)); |
| process->SetAccessor(env->need_imm_cb_string(), |
| NeedImmediateCallbackGetter, |
| NeedImmediateCallbackSetter); |
| |
| // -e, --eval |
| if (eval_string) { |
| READONLY_PROPERTY(process, |
| "_eval", |
| String::NewFromUtf8(env->isolate(), eval_string)); |
| } |
| |
| // -p, --print |
| if (print_eval) { |
| READONLY_PROPERTY(process, "_print_eval", True(env->isolate())); |
| } |
| |
| // -i, --interactive |
| if (force_repl) { |
| READONLY_PROPERTY(process, "_forceRepl", True(env->isolate())); |
| } |
| |
| // --no-deprecation |
| if (no_deprecation) { |
| READONLY_PROPERTY(process, "noDeprecation", True(env->isolate())); |
| } |
| |
| // --throw-deprecation |
| if (throw_deprecation) { |
| READONLY_PROPERTY(process, "throwDeprecation", True(env->isolate())); |
| } |
| |
| // --trace-deprecation |
| if (trace_deprecation) { |
| READONLY_PROPERTY(process, "traceDeprecation", True(env->isolate())); |
| } |
| |
| size_t exec_path_len = 2 * PATH_MAX; |
| char* exec_path = new char[exec_path_len]; |
| Local<String> exec_path_value; |
| if (uv_exepath(exec_path, &exec_path_len) == 0) { |
| exec_path_value = String::NewFromUtf8(env->isolate(), |
| exec_path, |
| String::kNormalString, |
| exec_path_len); |
| } else { |
| exec_path_value = String::NewFromUtf8(env->isolate(), argv[0]); |
| } |
| process->Set(env->exec_path_string(), exec_path_value); |
| delete[] exec_path; |
| |
| process->SetAccessor(env->debug_port_string(), |
| DebugPortGetter, |
| DebugPortSetter); |
| |
| // define various internal methods |
| env->SetMethod(process, |
| "_startProfilerIdleNotifier", |
| StartProfilerIdleNotifier); |
| env->SetMethod(process, |
| "_stopProfilerIdleNotifier", |
| StopProfilerIdleNotifier); |
| env->SetMethod(process, "_getActiveRequests", GetActiveRequests); |
| env->SetMethod(process, "_getActiveHandles", GetActiveHandles); |
| env->SetMethod(process, "reallyExit", Exit); |
| env->SetMethod(process, "abort", Abort); |
| env->SetMethod(process, "chdir", Chdir); |
| env->SetMethod(process, "cwd", Cwd); |
| |
| env->SetMethod(process, "umask", Umask); |
| |
| #if defined(__POSIX__) && !defined(__ANDROID__) |
| env->SetMethod(process, "getuid", GetUid); |
| env->SetMethod(process, "setuid", SetUid); |
| |
| env->SetMethod(process, "setgid", SetGid); |
| env->SetMethod(process, "getgid", GetGid); |
| |
| env->SetMethod(process, "getgroups", GetGroups); |
| env->SetMethod(process, "setgroups", SetGroups); |
| env->SetMethod(process, "initgroups", InitGroups); |
| #endif // __POSIX__ && !defined(__ANDROID__) |
| |
| env->SetMethod(process, "_kill", Kill); |
| |
| env->SetMethod(process, "_debugProcess", DebugProcess); |
| env->SetMethod(process, "_debugPause", DebugPause); |
| env->SetMethod(process, "_debugEnd", DebugEnd); |
| |
| env->SetMethod(process, "hrtime", Hrtime); |
| |
| env->SetMethod(process, "dlopen", DLOpen); |
| |
| env->SetMethod(process, "uptime", Uptime); |
| env->SetMethod(process, "memoryUsage", MemoryUsage); |
| |
| env->SetMethod(process, "binding", Binding); |
| env->SetMethod(process, "_linkedBinding", LinkedBinding); |
| |
| env->SetMethod(process, "_setupNextTick", SetupNextTick); |
| env->SetMethod(process, "_setupDomainUse", SetupDomainUse); |
| |
| // pre-set _events object for faster emit checks |
| process->Set(env->events_string(), Object::New(env->isolate())); |
| } |
| |
| |
| #undef READONLY_PROPERTY |
| |
| |
| static void AtExit() { |
| uv_tty_reset_mode(); |
| } |
| |
| |
| static void SignalExit(int signo) { |
| uv_tty_reset_mode(); |
| raise(signo); |
| } |
| |
| |
| // Most of the time, it's best to use `console.error` to write |
| // to the process.stderr stream. However, in some cases, such as |
| // when debugging the stream.Writable class or the process.nextTick |
| // function, it is useful to bypass JavaScript entirely. |
| static void RawDebug(const FunctionCallbackInfo<Value>& args) { |
| CHECK(args.Length() == 1 && args[0]->IsString() && |
| "must be called with a single string"); |
| node::Utf8Value message(args.GetIsolate(), args[0]); |
| fprintf(stderr, "%s\n", *message); |
| fflush(stderr); |
| } |
| |
| |
| void LoadEnvironment(Environment* env) { |
| HandleScope handle_scope(env->isolate()); |
| |
| env->isolate()->SetFatalErrorHandler(node::OnFatalError); |
| env->isolate()->AddMessageListener(OnMessage); |
| |
| // Compile, execute the src/node.js file. (Which was included as static C |
| // string in node_natives.h. 'natve_node' is the string containing that |
| // source code.) |
| |
| // The node.js file returns a function 'f' |
| atexit(AtExit); |
| |
| TryCatch try_catch; |
| |
| // Disable verbose mode to stop FatalException() handler from trying |
| // to handle the exception. Errors this early in the start-up phase |
| // are not safe to ignore. |
| try_catch.SetVerbose(false); |
| |
| Local<String> script_name = FIXED_ONE_BYTE_STRING(env->isolate(), "node.js"); |
| Local<Value> f_value = ExecuteString(env, MainSource(env), script_name); |
| if (try_catch.HasCaught()) { |
| ReportException(env, try_catch); |
| exit(10); |
| } |
| CHECK(f_value->IsFunction()); |
| Local<Function> f = Local<Function>::Cast(f_value); |
| |
| // Now we call 'f' with the 'process' variable that we've built up with |
| // all our bindings. Inside node.js we'll take care of assigning things to |
| // their places. |
| |
| // We start the process this way in order to be more modular. Developers |
| // who do not like how 'src/node.js' setups the module system but do like |
| // Node's I/O bindings may want to replace 'f' with their own function. |
| |
| // Add a reference to the global object |
| Local<Object> global = env->context()->Global(); |
| |
| #if defined HAVE_DTRACE || defined HAVE_ETW |
| InitDTrace(env, global); |
| #endif |
| |
| #if defined HAVE_LTTNG |
| InitLTTNG(env, global); |
| #endif |
| |
| #if defined HAVE_PERFCTR |
| InitPerfCounters(env, global); |
| #endif |
| |
| // Enable handling of uncaught exceptions |
| // (FatalException(), break on uncaught exception in debugger) |
| // |
| // This is not strictly necessary since it's almost impossible |
| // to attach the debugger fast enought to break on exception |
| // thrown during process startup. |
| try_catch.SetVerbose(true); |
| |
| env->SetMethod(env->process_object(), "_rawDebug", RawDebug); |
| |
| Local<Value> arg = env->process_object(); |
| f->Call(global, 1, &arg); |
| } |
| |
| static void PrintHelp(); |
| |
| static bool ParseDebugOpt(const char* arg) { |
| const char* port = nullptr; |
| |
| if (!strcmp(arg, "--debug")) { |
| use_debug_agent = true; |
| } else if (!strncmp(arg, "--debug=", sizeof("--debug=") - 1)) { |
| use_debug_agent = true; |
| port = arg + sizeof("--debug=") - 1; |
| } else if (!strcmp(arg, "--debug-brk")) { |
| use_debug_agent = true; |
| debug_wait_connect = true; |
| } else if (!strncmp(arg, "--debug-brk=", sizeof("--debug-brk=") - 1)) { |
| use_debug_agent = true; |
| debug_wait_connect = true; |
| port = arg + sizeof("--debug-brk=") - 1; |
| } else if (!strncmp(arg, "--debug-port=", sizeof("--debug-port=") - 1)) { |
| port = arg + sizeof("--debug-port=") - 1; |
| } else { |
| return false; |
| } |
| |
| if (port != nullptr) { |
| debug_port = atoi(port); |
| if (debug_port < 1024 || debug_port > 65535) { |
| fprintf(stderr, "Debug port must be in range 1024 to 65535.\n"); |
| PrintHelp(); |
| exit(12); |
| } |
| } |
| |
| return true; |
| } |
| |
| static void PrintHelp() { |
| printf("Usage: iojs [options] [ -e script | script.js ] [arguments] \n" |
| " iojs debug script.js [arguments] \n" |
| "\n" |
| "Options:\n" |
| " -v, --version print io.js version\n" |
| " -e, --eval script evaluate script\n" |
| " -p, --print evaluate script and print result\n" |
| " -i, --interactive always enter the REPL even if stdin\n" |
| " does not appear to be a terminal\n" |
| " --no-deprecation silence deprecation warnings\n" |
| " --throw-deprecation throw an exception anytime a deprecated " |
| "function is used\n" |
| " --trace-deprecation show stack traces on deprecations\n" |
| " --v8-options print v8 command line options\n" |
| " --max-stack-size=val set max v8 stack size (bytes)\n" |
| #if defined(NODE_HAVE_I18N_SUPPORT) |
| " --icu-data-dir=dir set ICU data load path to dir\n" |
| " (overrides NODE_ICU_DATA)\n" |
| #if !defined(NODE_HAVE_SMALL_ICU) |
| " Note: linked-in ICU data is\n" |
| " present.\n" |
| #endif |
| #endif |
| "\n" |
| "Environment variables:\n" |
| #ifdef _WIN32 |
| "NODE_PATH ';'-separated list of directories\n" |
| #else |
| "NODE_PATH ':'-separated list of directories\n" |
| #endif |
| " prefixed to the module search path.\n" |
| "NODE_MODULE_CONTEXTS Set to 1 to load modules in their own\n" |
| " global contexts.\n" |
| "NODE_DISABLE_COLORS Set to 1 to disable colors in the REPL\n" |
| #if defined(NODE_HAVE_I18N_SUPPORT) |
| "NODE_ICU_DATA Data path for ICU (Intl object) data\n" |
| #if !defined(NODE_HAVE_SMALL_ICU) |
| " (will extend linked-in data)\n" |
| #endif |
| #endif |
| "\n" |
| "Documentation can be found at https://iojs.org/\n"); |
| } |
| |
| |
| // Parse command line arguments. |
| // |
| // argv is modified in place. exec_argv and v8_argv are out arguments that |
| // ParseArgs() allocates memory for and stores a pointer to the output |
| // vector in. The caller should free them with delete[]. |
| // |
| // On exit: |
| // |
| // * argv contains the arguments with node and V8 options filtered out. |
| // * exec_argv contains both node and V8 options and nothing else. |
| // * v8_argv contains argv[0] plus any V8 options |
| static void ParseArgs(int* argc, |
| const char** argv, |
| int* exec_argc, |
| const char*** exec_argv, |
| int* v8_argc, |
| const char*** v8_argv) { |
| const unsigned int nargs = static_cast<unsigned int>(*argc); |
| const char** new_exec_argv = new const char*[nargs]; |
| const char** new_v8_argv = new const char*[nargs]; |
| const char** new_argv = new const char*[nargs]; |
| |
| for (unsigned int i = 0; i < nargs; ++i) { |
| new_exec_argv[i] = nullptr; |
| new_v8_argv[i] = nullptr; |
| new_argv[i] = nullptr; |
| } |
| |
| // exec_argv starts with the first option, the other two start with argv[0]. |
| unsigned int new_exec_argc = 0; |
| unsigned int new_v8_argc = 1; |
| unsigned int new_argc = 1; |
| new_v8_argv[0] = argv[0]; |
| new_argv[0] = argv[0]; |
| |
| unsigned int index = 1; |
| while (index < nargs && argv[index][0] == '-') { |
| const char* const arg = argv[index]; |
| unsigned int args_consumed = 1; |
| |
| if (ParseDebugOpt(arg)) { |
| // Done, consumed by ParseDebugOpt(). |
| } else if (strcmp(arg, "--version") == 0 || strcmp(arg, "-v") == 0) { |
| printf("%s\n", NODE_VERSION); |
| exit(0); |
| } else if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) { |
| PrintHelp(); |
| exit(0); |
| } else if (strcmp(arg, "--eval") == 0 || |
| strcmp(arg, "-e") == 0 || |
| strcmp(arg, "--print") == 0 || |
| strcmp(arg, "-pe") == 0 || |
| strcmp(arg, "-p") == 0) { |
| bool is_eval = strchr(arg, 'e') != nullptr; |
| bool is_print = strchr(arg, 'p') != nullptr; |
| print_eval = print_eval || is_print; |
| // --eval, -e and -pe always require an argument. |
| if (is_eval == true) { |
| args_consumed += 1; |
| eval_string = argv[index + 1]; |
| if (eval_string == nullptr) { |
| fprintf(stderr, "%s: %s requires an argument\n", argv[0], arg); |
| exit(9); |
| } |
| } else if ((index + 1 < nargs) && |
| argv[index + 1] != nullptr && |
| argv[index + 1][0] != '-') { |
| args_consumed += 1; |
| eval_string = argv[index + 1]; |
| if (strncmp(eval_string, "\\-", 2) == 0) { |
| // Starts with "\\-": escaped expression, drop the backslash. |
| eval_string += 1; |
| } |
| } |
| } else if (strcmp(arg, "--interactive") == 0 || strcmp(arg, "-i") == 0) { |
| force_repl = true; |
| } else if (strcmp(arg, "--no-deprecation") == 0) { |
| no_deprecation = true; |
| } else if (strcmp(arg, "--trace-deprecation") == 0) { |
| trace_deprecation = true; |
| } else if (strcmp(arg, "--throw-deprecation") == 0) { |
| throw_deprecation = true; |
| } else if (strcmp(arg, "--v8-options") == 0) { |
| new_v8_argv[new_v8_argc] = "--help"; |
| new_v8_argc += 1; |
| #if defined(NODE_HAVE_I18N_SUPPORT) |
| } else if (strncmp(arg, "--icu-data-dir=", 15) == 0) { |
| icu_data_dir = arg + 15; |
| #endif |
| } else { |
| // V8 option. Pass through as-is. |
| new_v8_argv[new_v8_argc] = arg; |
| new_v8_argc += 1; |
| } |
| |
| memcpy(new_exec_argv + new_exec_argc, |
| argv + index, |
| args_consumed * sizeof(*argv)); |
| |
| new_exec_argc += args_consumed; |
| index += args_consumed; |
| } |
| |
| // Copy remaining arguments. |
| const unsigned int args_left = nargs - index; |
| memcpy(new_argv + new_argc, argv + index, args_left * sizeof(*argv)); |
| new_argc += args_left; |
| |
| *exec_argc = new_exec_argc; |
| *exec_argv = new_exec_argv; |
| *v8_argc = new_v8_argc; |
| *v8_argv = new_v8_argv; |
| |
| // Copy new_argv over argv and update argc. |
| memcpy(argv, new_argv, new_argc * sizeof(*argv)); |
| delete[] new_argv; |
| *argc = static_cast<int>(new_argc); |
| } |
| |
| |
| // Called from V8 Debug Agent TCP thread. |
| static void DispatchMessagesDebugAgentCallback(Environment* env) { |
| // TODO(indutny): move async handle to environment |
| uv_async_send(&dispatch_debug_messages_async); |
| } |
| |
| |
| static void StartDebug(Environment* env, bool wait) { |
| CHECK(!debugger_running); |
| |
| env->debugger_agent()->set_dispatch_handler( |
| DispatchMessagesDebugAgentCallback); |
| debugger_running = env->debugger_agent()->Start(debug_port, wait); |
| if (debugger_running == false) { |
| fprintf(stderr, "Starting debugger on port %d failed\n", debug_port); |
| fflush(stderr); |
| return; |
| } |
| } |
| |
| |
| // Called from the main thread. |
| static void EnableDebug(Environment* env) { |
| CHECK(debugger_running); |
| |
| // Send message to enable debug in workers |
| HandleScope handle_scope(env->isolate()); |
| |
| Local<Object> message = Object::New(env->isolate()); |
| message->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "cmd"), |
| FIXED_ONE_BYTE_STRING(env->isolate(), "NODE_DEBUG_ENABLED")); |
| Local<Value> argv[] = { |
| FIXED_ONE_BYTE_STRING(env->isolate(), "internalMessage"), |
| message |
| }; |
| MakeCallback(env, env->process_object(), "emit", ARRAY_SIZE(argv), argv); |
| |
| // Enabled debugger, possibly making it wait on a semaphore |
| env->debugger_agent()->Enable(); |
| } |
| |
| |
| // Called from the main thread. |
| static void DispatchDebugMessagesAsyncCallback(uv_async_t* handle) { |
| if (debugger_running == false) { |
| fprintf(stderr, "Starting debugger agent.\n"); |
| |
| Environment* env = Environment::GetCurrent(node_isolate); |
| Context::Scope context_scope(env->context()); |
| |
| StartDebug(env, false); |
| EnableDebug(env); |
| } |
| Isolate::Scope isolate_scope(node_isolate); |
| v8::Debug::ProcessDebugMessages(); |
| } |
| |
| |
| #ifdef __POSIX__ |
| static void EnableDebugSignalHandler(int signo) { |
| // Call only async signal-safe functions here! |
| v8::Debug::DebugBreak(*static_cast<Isolate* volatile*>(&node_isolate)); |
| uv_async_send(&dispatch_debug_messages_async); |
| } |
| |
| |
| static void RegisterSignalHandler(int signal, |
| void (*handler)(int signal), |
| bool reset_handler = false) { |
| struct sigaction sa; |
| memset(&sa, 0, sizeof(sa)); |
| sa.sa_handler = handler; |
| sa.sa_flags = reset_handler ? SA_RESETHAND : 0; |
| sigfillset(&sa.sa_mask); |
| CHECK_EQ(sigaction(signal, &sa, nullptr), 0); |
| } |
| |
| |
| void DebugProcess(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| |
| if (args.Length() != 1) { |
| return env->ThrowError("Invalid number of arguments."); |
| } |
| |
| pid_t pid; |
| int r; |
| |
| pid = args[0]->IntegerValue(); |
| r = kill(pid, SIGUSR1); |
| if (r != 0) { |
| return env->ThrowErrnoException(errno, "kill"); |
| } |
| } |
| |
| |
| static int RegisterDebugSignalHandler() { |
| // FIXME(bnoordhuis) Should be per-isolate or per-context, not global. |
| RegisterSignalHandler(SIGUSR1, EnableDebugSignalHandler); |
| // Unblock SIGUSR1. A pending SIGUSR1 signal will now be delivered. |
| sigset_t sigmask; |
| sigemptyset(&sigmask); |
| sigaddset(&sigmask, SIGUSR1); |
| CHECK_EQ(0, pthread_sigmask(SIG_UNBLOCK, &sigmask, nullptr)); |
| return 0; |
| } |
| #endif // __POSIX__ |
| |
| |
| #ifdef _WIN32 |
| DWORD WINAPI EnableDebugThreadProc(void* arg) { |
| v8::Debug::DebugBreak(*static_cast<Isolate* volatile*>(&node_isolate)); |
| uv_async_send(&dispatch_debug_messages_async); |
| return 0; |
| } |
| |
| |
| static int GetDebugSignalHandlerMappingName(DWORD pid, wchar_t* buf, |
| size_t buf_len) { |
| return _snwprintf(buf, buf_len, L"node-debug-handler-%u", pid); |
| } |
| |
| |
| static int RegisterDebugSignalHandler() { |
| wchar_t mapping_name[32]; |
| HANDLE mapping_handle; |
| DWORD pid; |
| LPTHREAD_START_ROUTINE* handler; |
| |
| pid = GetCurrentProcessId(); |
| |
| if (GetDebugSignalHandlerMappingName(pid, |
| mapping_name, |
| ARRAY_SIZE(mapping_name)) < 0) { |
| return -1; |
| } |
| |
| mapping_handle = CreateFileMappingW(INVALID_HANDLE_VALUE, |
| nullptr, |
| PAGE_READWRITE, |
| 0, |
| sizeof *handler, |
| mapping_name); |
| if (mapping_handle == nullptr) { |
| return -1; |
| } |
| |
| handler = reinterpret_cast<LPTHREAD_START_ROUTINE*>( |
| MapViewOfFile(mapping_handle, |
| FILE_MAP_ALL_ACCESS, |
| 0, |
| 0, |
| sizeof *handler)); |
| if (handler == nullptr) { |
| CloseHandle(mapping_handle); |
| return -1; |
| } |
| |
| *handler = EnableDebugThreadProc; |
| |
| UnmapViewOfFile(static_cast<void*>(handler)); |
| |
| return 0; |
| } |
| |
| |
| static void DebugProcess(const FunctionCallbackInfo<Value>& args) { |
| Environment* env = Environment::GetCurrent(args); |
| Isolate* isolate = args.GetIsolate(); |
| DWORD pid; |
| HANDLE process = nullptr; |
| HANDLE thread = nullptr; |
| HANDLE mapping = nullptr; |
| wchar_t mapping_name[32]; |
| LPTHREAD_START_ROUTINE* handler = nullptr; |
| |
| if (args.Length() != 1) { |
| env->ThrowError("Invalid number of arguments."); |
| goto out; |
| } |
| |
| pid = (DWORD) args[0]->IntegerValue(); |
| |
| process = OpenProcess(PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION | |
| PROCESS_VM_OPERATION | PROCESS_VM_WRITE | |
| PROCESS_VM_READ, |
| FALSE, |
| pid); |
| if (process == nullptr) { |
| isolate->ThrowException( |
| WinapiErrnoException(isolate, GetLastError(), "OpenProcess")); |
| goto out; |
| } |
| |
| if (GetDebugSignalHandlerMappingName(pid, |
| mapping_name, |
| ARRAY_SIZE(mapping_name)) < 0) { |
| env->ThrowErrnoException(errno, "sprintf"); |
| goto out; |
| } |
| |
| mapping = OpenFileMappingW(FILE_MAP_READ, FALSE, mapping_name); |
| if (mapping == nullptr) { |
| isolate->ThrowException(WinapiErrnoException(isolate, |
| GetLastError(), |
| "OpenFileMappingW")); |
| goto out; |
| } |
| |
| handler = reinterpret_cast<LPTHREAD_START_ROUTINE*>( |
| MapViewOfFile(mapping, |
| FILE_MAP_READ, |
| 0, |
| 0, |
| sizeof *handler)); |
| if (handler == nullptr || *handler == nullptr) { |
| isolate->ThrowException( |
| WinapiErrnoException(isolate, GetLastError(), "MapViewOfFile")); |
| goto out; |
| } |
| |
| thread = CreateRemoteThread(process, |
| nullptr, |
| 0, |
| *handler, |
| nullptr, |
| 0, |
| nullptr); |
| if (thread == nullptr) { |
| isolate->ThrowException(WinapiErrnoException(isolate, |
| GetLastError(), |
| "CreateRemoteThread")); |
| goto out; |
| } |
| |
| // Wait for the thread to terminate |
| if (WaitForSingleObject(thread, INFINITE) != WAIT_OBJECT_0) { |
| isolate->ThrowException(WinapiErrnoException(isolate, |
| GetLastError(), |
| "WaitForSingleObject")); |
| goto out; |
| } |
| |
| out: |
| if (process != nullptr) |
| CloseHandle(process); |
| if (thread != nullptr) |
| CloseHandle(thread); |
| if (handler != nullptr) |
| UnmapViewOfFile(handler); |
| if (mapping != nullptr) |
| CloseHandle(mapping); |
| } |
| #endif // _WIN32 |
| |
| |
| static void DebugPause(const FunctionCallbackInfo<Value>& args) { |
| v8::Debug::DebugBreak(args.GetIsolate()); |
| } |
| |
| |
| static void DebugEnd(const FunctionCallbackInfo<Value>& args) { |
| if (debugger_running) { |
| Environment* env = Environment::GetCurrent(args); |
| env->debugger_agent()->Stop(); |
| debugger_running = false; |
| } |
| } |
| |
| |
| inline void PlatformInit() { |
| #ifdef __POSIX__ |
| sigset_t sigmask; |
| sigemptyset(&sigmask); |
| sigaddset(&sigmask, SIGUSR1); |
| CHECK_EQ(0, pthread_sigmask(SIG_SETMASK, &sigmask, nullptr)); |
| |
| // Restore signal dispositions, the parent process may have changed them. |
| struct sigaction act; |
| memset(&act, 0, sizeof(act)); |
| |
| // The hard-coded upper limit is because NSIG is not very reliable; on Linux, |
| // it evaluates to 32, 34 or 64, depending on whether RT signals are enabled. |
| // Counting up to SIGRTMIN doesn't work for the same reason. |
| for (unsigned nr = 1; nr < 32; nr += 1) { |
| if (nr == SIGKILL || nr == SIGSTOP) |
| continue; |
| act.sa_handler = (nr == SIGPIPE) ? SIG_IGN : SIG_DFL; |
| CHECK_EQ(0, sigaction(nr, &act, nullptr)); |
| } |
| |
| RegisterSignalHandler(SIGINT, SignalExit, true); |
| RegisterSignalHandler(SIGTERM, SignalExit, true); |
| |
| // Block SIGPROF signals when sleeping in epoll_wait/kevent/etc. Avoids the |
| // performance penalty of frequent EINTR wakeups when the profiler is running. |
| uv_loop_configure(uv_default_loop(), UV_LOOP_BLOCK_SIGNAL, SIGPROF); |
| |
| // Raise the open file descriptor limit. |
| struct rlimit lim; |
| if (getrlimit(RLIMIT_NOFILE, &lim) == 0 && lim.rlim_cur != lim.rlim_max) { |
| // Do a binary search for the limit. |
| rlim_t min = lim.rlim_cur; |
| rlim_t max = 1 << 20; |
| // But if there's a defined upper bound, don't search, just set it. |
| if (lim.rlim_max != RLIM_INFINITY) { |
| min = lim.rlim_max; |
| max = lim.rlim_max; |
| } |
| do { |
| lim.rlim_cur = min + (max - min) / 2; |
| if (setrlimit(RLIMIT_NOFILE, &lim)) { |
| max = lim.rlim_cur; |
| } else { |
| min = lim.rlim_cur; |
| } |
| } while (min + 1 < max); |
| } |
| #endif // __POSIX__ |
| } |
| |
| |
| void Init(int* argc, |
| const char** argv, |
| int* exec_argc, |
| const char*** exec_argv) { |
| // Initialize prog_start_time to get relative uptime. |
| prog_start_time = static_cast<double>(uv_now(uv_default_loop())); |
| |
| // Make inherited handles noninheritable. |
| uv_disable_stdio_inheritance(); |
| |
| // init async debug messages dispatching |
| // FIXME(bnoordhuis) Should be per-isolate or per-context, not global. |
| uv_async_init(uv_default_loop(), |
| &dispatch_debug_messages_async, |
| DispatchDebugMessagesAsyncCallback); |
| uv_unref(reinterpret_cast<uv_handle_t*>(&dispatch_debug_messages_async)); |
| |
| #if defined(NODE_V8_OPTIONS) |
| // Should come before the call to V8::SetFlagsFromCommandLine() |
| // so the user can disable a flag --foo at run-time by passing |
| // --no_foo from the command line. |
| V8::SetFlagsFromString(NODE_V8_OPTIONS, sizeof(NODE_V8_OPTIONS) - 1); |
| #endif |
| |
| // Parse a few arguments which are specific to Node. |
| int v8_argc; |
| const char** v8_argv; |
| ParseArgs(argc, argv, exec_argc, exec_argv, &v8_argc, &v8_argv); |
| |
| // TODO(bnoordhuis) Intercept --prof arguments and start the CPU profiler |
| // manually? That would give us a little more control over its runtime |
| // behavior but it could also interfere with the user's intentions in ways |
| // we fail to anticipate. Dillema. |
| for (int i = 1; i < v8_argc; ++i) { |
| if (strncmp(v8_argv[i], "--prof", sizeof("--prof") - 1) == 0) { |
| v8_is_profiling = true; |
| break; |
| } |
| } |
| |
| #if defined(NODE_HAVE_I18N_SUPPORT) |
| if (icu_data_dir == nullptr) { |
| // if the parameter isn't given, use the env variable. |
| icu_data_dir = secure_getenv("NODE_ICU_DATA"); |
| } |
| // Initialize ICU. |
| // If icu_data_dir is nullptr here, it will load the 'minimal' data. |
| if (!i18n::InitializeICUDirectory(icu_data_dir)) { |
| FatalError(nullptr, "Could not initialize ICU " |
| "(check NODE_ICU_DATA or --icu-data-dir parameters)"); |
| } |
| #endif |
| // The const_cast doesn't violate conceptual const-ness. V8 doesn't modify |
| // the argv array or the elements it points to. |
| V8::SetFlagsFromCommandLine(&v8_argc, const_cast<char**>(v8_argv), true); |
| |
| // Anything that's still in v8_argv is not a V8 or a node option. |
| for (int i = 1; i < v8_argc; i++) { |
| fprintf(stderr, "%s: bad option: %s\n", argv[0], v8_argv[i]); |
| } |
| delete[] v8_argv; |
| v8_argv = nullptr; |
| |
| if (v8_argc > 1) { |
| exit(9); |
| } |
| |
| if (debug_wait_connect) { |
| const char expose_debug_as[] = "--expose_debug_as=v8debug"; |
| V8::SetFlagsFromString(expose_debug_as, sizeof(expose_debug_as) - 1); |
| } |
| |
| V8::SetArrayBufferAllocator(&ArrayBufferAllocator::the_singleton); |
| |
| if (!use_debug_agent) { |
| RegisterDebugSignalHandler(); |
| } |
| |
| // We should set node_is_initialized here instead of in node::Start, |
| // otherwise embedders using node::Init to initialize everything will not be |
| // able to set it and native modules will not load for them. |
| node_is_initialized = true; |
| } |
| |
| |
| struct AtExitCallback { |
| AtExitCallback* next_; |
| void (*cb_)(void* arg); |
| void* arg_; |
| }; |
| |
| static AtExitCallback* at_exit_functions_; |
| |
| |
| // TODO(bnoordhuis) Turn into per-context event. |
| void RunAtExit(Environment* env) { |
| AtExitCallback* p = at_exit_functions_; |
| at_exit_functions_ = nullptr; |
| |
| while (p) { |
| AtExitCallback* q = p->next_; |
| p->cb_(p->arg_); |
| delete p; |
| p = q; |
| } |
| } |
| |
| |
| void AtExit(void (*cb)(void* arg), void* arg) { |
| AtExitCallback* p = new AtExitCallback; |
| p->cb_ = cb; |
| p->arg_ = arg; |
| p->next_ = at_exit_functions_; |
| at_exit_functions_ = p; |
| } |
| |
| |
| void EmitBeforeExit(Environment* env) { |
| Context::Scope context_scope(env->context()); |
| HandleScope handle_scope(env->isolate()); |
| Local<Object> process_object = env->process_object(); |
| Local<String> exit_code = FIXED_ONE_BYTE_STRING(env->isolate(), "exitCode"); |
| Local<Value> args[] = { |
| FIXED_ONE_BYTE_STRING(env->isolate(), "beforeExit"), |
| process_object->Get(exit_code)->ToInteger(env->isolate()) |
| }; |
| MakeCallback(env, process_object, "emit", ARRAY_SIZE(args), args); |
| } |
| |
| |
| int EmitExit(Environment* env) { |
| // process.emit('exit') |
| HandleScope handle_scope(env->isolate()); |
| Context::Scope context_scope(env->context()); |
| Local<Object> process_object = env->process_object(); |
| process_object->Set(env->exiting_string(), True(env->isolate())); |
| |
| Handle<String> exitCode = env->exit_code_string(); |
| int code = process_object->Get(exitCode)->Int32Value(); |
| |
| Local<Value> args[] = { |
| env->exit_string(), |
| Integer::New(env->isolate(), code) |
| }; |
| |
| MakeCallback(env, process_object, "emit", ARRAY_SIZE(args), args); |
| |
| // Reload exit code, it may be changed by `emit('exit')` |
| return process_object->Get(exitCode)->Int32Value(); |
| } |
| |
| |
| // Just a convenience method |
| Environment* CreateEnvironment(Isolate* isolate, |
| Handle<Context> context, |
| int argc, |
| const char* const* argv, |
| int exec_argc, |
| const char* const* exec_argv) { |
| Environment* env; |
| Context::Scope context_scope(context); |
| |
| env = CreateEnvironment(isolate, |
| uv_default_loop(), |
| context, |
| argc, |
| argv, |
| exec_argc, |
| exec_argv); |
| |
| LoadEnvironment(env); |
| |
| return env; |
| } |
| |
| |
| static void HandleCloseCb(uv_handle_t* handle) { |
| Environment* env = reinterpret_cast<Environment*>(handle->data); |
| env->FinishHandleCleanup(handle); |
| } |
| |
| |
| static void HandleCleanup(Environment* env, |
| uv_handle_t* handle, |
| void* arg) { |
| handle->data = env; |
| uv_close(handle, HandleCloseCb); |
| } |
| |
| |
| Environment* CreateEnvironment(Isolate* isolate, |
| uv_loop_t* loop, |
| Handle<Context> context, |
| int argc, |
| const char* const* argv, |
| int exec_argc, |
| const char* const* exec_argv) { |
| HandleScope handle_scope(isolate); |
| |
| Context::Scope context_scope(context); |
| Environment* env = Environment::New(context, loop); |
| |
| isolate->SetAutorunMicrotasks(false); |
| |
| uv_check_init(env->event_loop(), env->immediate_check_handle()); |
| uv_unref( |
| reinterpret_cast<uv_handle_t*>(env->immediate_check_handle())); |
| |
| uv_idle_init(env->event_loop(), env->immediate_idle_handle()); |
| |
| // Inform V8's CPU profiler when we're idle. The profiler is sampling-based |
| // but not all samples are created equal; mark the wall clock time spent in |
| // epoll_wait() and friends so profiling tools can filter it out. The samples |
| // still end up in v8.log but with state=IDLE rather than state=EXTERNAL. |
| // TODO(bnoordhuis) Depends on a libuv implementation detail that we should |
| // probably fortify in the API contract, namely that the last started prepare |
| // or check watcher runs first. It's not 100% foolproof; if an add-on starts |
| // a prepare or check watcher after us, any samples attributed to its callback |
| // will be recorded with state=IDLE. |
| uv_prepare_init(env->event_loop(), env->idle_prepare_handle()); |
| uv_check_init(env->event_loop(), env->idle_check_handle()); |
| uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_prepare_handle())); |
| uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_check_handle())); |
| |
| // Register handle cleanups |
| env->RegisterHandleCleanup( |
| reinterpret_cast<uv_handle_t*>(env->immediate_check_handle()), |
| HandleCleanup, |
| nullptr); |
| env->RegisterHandleCleanup( |
| reinterpret_cast<uv_handle_t*>(env->immediate_idle_handle()), |
| HandleCleanup, |
| nullptr); |
| env->RegisterHandleCleanup( |
| reinterpret_cast<uv_handle_t*>(env->idle_prepare_handle()), |
| HandleCleanup, |
| nullptr); |
| env->RegisterHandleCleanup( |
| reinterpret_cast<uv_handle_t*>(env->idle_check_handle()), |
| HandleCleanup, |
| nullptr); |
| |
| if (v8_is_profiling) { |
| StartProfilerIdleNotifier(env); |
| } |
| |
| Local<FunctionTemplate> process_template = FunctionTemplate::New(isolate); |
| process_template->SetClassName(FIXED_ONE_BYTE_STRING(isolate, "process")); |
| |
| Local<Object> process_object = process_template->GetFunction()->NewInstance(); |
| env->set_process_object(process_object); |
| |
| SetupProcessObject(env, argc, argv, exec_argc, exec_argv); |
| |
| return env; |
| } |
| |
| |
| int Start(int argc, char** argv) { |
| PlatformInit(); |
| |
| const char* replaceInvalid = secure_getenv("NODE_INVALID_UTF8"); |
| |
| if (replaceInvalid == nullptr) |
| WRITE_UTF8_FLAGS |= String::REPLACE_INVALID_UTF8; |
| |
| CHECK_GT(argc, 0); |
| |
| // Hack around with the argv pointer. Used for process.title = "blah". |
| argv = uv_setup_args(argc, argv); |
| |
| // This needs to run *before* V8::Initialize(). The const_cast is not |
| // optional, in case you're wondering. |
| int exec_argc; |
| const char** exec_argv; |
| Init(&argc, const_cast<const char**>(argv), &exec_argc, &exec_argv); |
| |
| #if HAVE_OPENSSL |
| // V8 on Windows doesn't have a good source of entropy. Seed it from |
| // OpenSSL's pool. |
| V8::SetEntropySource(crypto::EntropySource); |
| #endif |
| |
| V8::InitializePlatform(new Platform(4)); |
| |
| int code; |
| V8::Initialize(); |
| |
| // Fetch a reference to the main isolate, so we have a reference to it |
| // even when we need it to access it from another (debugger) thread. |
| node_isolate = Isolate::New(); |
| { |
| Locker locker(node_isolate); |
| Isolate::Scope isolate_scope(node_isolate); |
| HandleScope handle_scope(node_isolate); |
| Local<Context> context = Context::New(node_isolate); |
| Environment* env = CreateEnvironment( |
| node_isolate, |
| uv_default_loop(), |
| context, |
| argc, |
| argv, |
| exec_argc, |
| exec_argv); |
| Context::Scope context_scope(context); |
| |
| // Start debug agent when argv has --debug |
| if (use_debug_agent) |
| StartDebug(env, debug_wait_connect); |
| |
| LoadEnvironment(env); |
| |
| // Enable debugger |
| if (use_debug_agent) |
| EnableDebug(env); |
| |
| bool more; |
| do { |
| more = uv_run(env->event_loop(), UV_RUN_ONCE); |
| if (more == false) { |
| EmitBeforeExit(env); |
| |
| // Emit `beforeExit` if the loop became alive either after emitting |
| // event, or after running some callbacks. |
| more = uv_loop_alive(env->event_loop()); |
| if (uv_run(env->event_loop(), UV_RUN_NOWAIT) != 0) |
| more = true; |
| } |
| } while (more == true); |
| code = EmitExit(env); |
| RunAtExit(env); |
| |
| env->Dispose(); |
| env = nullptr; |
| } |
| |
| CHECK_NE(node_isolate, nullptr); |
| node_isolate->Dispose(); |
| node_isolate = nullptr; |
| V8::Dispose(); |
| |
| delete[] exec_argv; |
| exec_argv = nullptr; |
| |
| return code; |
| } |
| |
| |
| } // namespace node |