1 // Copyright Joyent, Inc. and other Node contributors.
3 // Permission is hereby granted, free of charge, to any person obtaining a
4 // copy of this software and associated documentation files (the
5 // "Software"), to deal in the Software without restriction, including
6 // without limitation the rights to use, copy, modify, merge, publish,
7 // distribute, sublicense, and/or sell copies of the Software, and to permit
8 // persons to whom the Software is furnished to do so, subject to the
9 // following conditions:
11 // The above copyright notice and this permission notice shall be included
12 // in all copies or substantial portions of the Software.
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
17 // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
18 // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 // USE OR OTHER DEALINGS IN THE SOFTWARE.
23 #include "node_buffer.h"
24 #include "node_constants.h"
25 #include "node_file.h"
26 #include "node_http_parser.h"
27 #include "node_javascript.h"
28 #include "node_version.h"
30 #if defined HAVE_PERFCTR
31 #include "node_counters.h"
35 #include "node_crypto.h"
38 #if defined HAVE_DTRACE || defined HAVE_ETW
39 #include "node_dtrace.h"
43 #include "async-wrap.h"
44 #include "async-wrap-inl.h"
47 #include "handle_wrap.h"
49 #include "string_bytes.h"
52 #include "v8-profiler.h"
57 #include <limits.h> // PATH_MAX
63 #include <sys/types.h>
69 #define strcasecmp _stricmp
70 #define getpid _getpid
74 #include <sys/resource.h> // getrlimit, setrlimit
75 #include <unistd.h> // setuid, getuid
78 #if defined(__POSIX__) && !defined(__ANDROID__)
79 #include <pwd.h> // getpwnam()
80 #include <grp.h> // getgrnam()
84 #include <crt_externs.h>
85 #define environ (*_NSGetEnviron())
86 #elif !defined(_MSC_VER)
87 extern char **environ;
93 using v8::ArrayBuffer;
98 using v8::FunctionCallbackInfo;
99 using v8::FunctionTemplate;
101 using v8::HandleScope;
102 using v8::HeapStatistics;
110 using v8::ObjectTemplate;
111 using v8::PropertyCallbackInfo;
113 using v8::ThrowException;
118 using v8::kExternalUnsignedIntArray;
120 // FIXME(bnoordhuis) Make these per-context?
121 QUEUE handle_wrap_queue = { &handle_wrap_queue, &handle_wrap_queue };
122 QUEUE req_wrap_queue = { &req_wrap_queue, &req_wrap_queue };
124 static bool print_eval = false;
125 static bool force_repl = false;
126 static bool trace_deprecation = false;
127 static bool throw_deprecation = false;
128 static const char* eval_string = NULL;
129 static bool use_debug_agent = false;
130 static bool debug_wait_connect = false;
131 static int debug_port = 5858;
132 static bool v8_is_profiling = false;
134 // used by C++ modules as well
135 bool no_deprecation = false;
137 // process-relative uptime base, initialized at start-up
138 static double prog_start_time;
139 static bool debugger_running;
140 static uv_async_t dispatch_debug_messages_async;
142 // Declared in node_internals.h
143 Isolate* node_isolate = NULL;
146 class ArrayBufferAllocator : public ArrayBuffer::Allocator {
148 // Impose an upper limit to avoid out of memory errors that bring down
150 static const size_t kMaxLength = 0x3fffffff;
151 static ArrayBufferAllocator the_singleton;
152 virtual ~ArrayBufferAllocator() {}
153 virtual void* Allocate(size_t length);
154 virtual void* AllocateUninitialized(size_t length);
155 virtual void Free(void* data, size_t length);
157 ArrayBufferAllocator() {}
158 ArrayBufferAllocator(const ArrayBufferAllocator&);
159 void operator=(const ArrayBufferAllocator&);
162 ArrayBufferAllocator ArrayBufferAllocator::the_singleton;
165 void* ArrayBufferAllocator::Allocate(size_t length) {
166 if (length > kMaxLength)
168 char* data = new char[length];
169 memset(data, 0, length);
174 void* ArrayBufferAllocator::AllocateUninitialized(size_t length) {
175 if (length > kMaxLength)
177 return new char[length];
181 void ArrayBufferAllocator::Free(void* data, size_t length) {
182 delete[] static_cast<char*>(data);
186 static void CheckImmediate(uv_check_t* handle, int status) {
187 HandleScope scope(node_isolate);
188 Environment* env = Environment::from_immediate_check_handle(handle);
189 Context::Scope context_scope(env->context());
190 MakeCallback(env, env->process_object(), env->immediate_callback_string());
194 static void IdleImmediateDummy(uv_idle_t*, int) {
195 // Do nothing. Only for maintaining event loop.
196 // TODO(bnoordhuis) Maybe make libuv accept NULL idle callbacks.
200 static inline const char *errno_string(int errorno) {
201 #define ERRNO_CASE(e) case e: return #e;
208 ERRNO_CASE(EADDRINUSE);
212 ERRNO_CASE(EADDRNOTAVAIL);
216 ERRNO_CASE(EAFNOSUPPORT);
224 # if EAGAIN != EWOULDBLOCK
225 ERRNO_CASE(EWOULDBLOCK);
230 ERRNO_CASE(EALREADY);
246 ERRNO_CASE(ECANCELED);
254 ERRNO_CASE(ECONNABORTED);
258 ERRNO_CASE(ECONNREFUSED);
262 ERRNO_CASE(ECONNRESET);
270 ERRNO_CASE(EDESTADDRREQ);
294 ERRNO_CASE(EHOSTUNREACH);
306 ERRNO_CASE(EINPROGRESS);
342 ERRNO_CASE(EMSGSIZE);
346 ERRNO_CASE(EMULTIHOP);
350 ERRNO_CASE(ENAMETOOLONG);
354 ERRNO_CASE(ENETDOWN);
358 ERRNO_CASE(ENETRESET);
362 ERRNO_CASE(ENETUNREACH);
394 # if ENOLINK != ENOLCK
408 ERRNO_CASE(ENOPROTOOPT);
428 ERRNO_CASE(ENOTCONN);
436 ERRNO_CASE(ENOTEMPTY);
440 ERRNO_CASE(ENOTSOCK);
447 ERRNO_CASE(EOPNOTSUPP);
461 ERRNO_CASE(EOVERFLOW);
476 #ifdef EPROTONOSUPPORT
477 ERRNO_CASE(EPROTONOSUPPORT);
481 ERRNO_CASE(EPROTOTYPE);
509 ERRNO_CASE(ETIMEDOUT);
524 const char *signo_string(int signo) {
525 #define SIGNO_CASE(e) case e: return #e;
552 # if SIGABRT != SIGIOT
596 SIGNO_CASE(SIGSTKFLT);
613 SIGNO_CASE(SIGBREAK);
637 SIGNO_CASE(SIGVTALRM);
645 SIGNO_CASE(SIGWINCH);
653 # if SIGPOLL != SIGIO
663 # if SIGPWR != SIGLOST
677 Local<Value> ErrnoException(int errorno,
681 Environment* env = Environment::GetCurrent(node_isolate);
684 Local<String> estring = OneByteString(node_isolate, errno_string(errorno));
685 if (msg == NULL || msg[0] == '\0') {
686 msg = strerror(errorno);
688 Local<String> message = OneByteString(node_isolate, msg);
690 Local<String> cons1 =
691 String::Concat(estring, FIXED_ONE_BYTE_STRING(node_isolate, ", "));
692 Local<String> cons2 = String::Concat(cons1, message);
695 Local<String> cons3 =
696 String::Concat(cons2, FIXED_ONE_BYTE_STRING(node_isolate, " '"));
697 Local<String> cons4 =
698 String::Concat(cons3, String::NewFromUtf8(node_isolate, path));
699 Local<String> cons5 =
700 String::Concat(cons4, FIXED_ONE_BYTE_STRING(node_isolate, "'"));
701 e = Exception::Error(cons5);
703 e = Exception::Error(cons2);
706 Local<Object> obj = e->ToObject();
707 obj->Set(env->errno_string(), Integer::New(errorno, node_isolate));
708 obj->Set(env->code_string(), estring);
711 obj->Set(env->path_string(), String::NewFromUtf8(node_isolate, path));
714 if (syscall != NULL) {
715 obj->Set(env->syscall_string(), OneByteString(node_isolate, syscall));
722 // hack alert! copy of ErrnoException, tuned for uv errors
723 Local<Value> UVException(int errorno,
727 Environment* env = Environment::GetCurrent(node_isolate);
730 msg = uv_strerror(errorno);
732 Local<String> estring = OneByteString(node_isolate, uv_err_name(errorno));
733 Local<String> message = OneByteString(node_isolate, msg);
734 Local<String> cons1 =
735 String::Concat(estring, FIXED_ONE_BYTE_STRING(node_isolate, ", "));
736 Local<String> cons2 = String::Concat(cons1, message);
740 Local<String> path_str;
744 if (strncmp(path, "\\\\?\\UNC\\", 8) == 0) {
745 path_str = String::Concat(FIXED_ONE_BYTE_STRING(node_isolate, "\\\\"),
746 String::NewFromUtf8(node_isolate, path + 8));
747 } else if (strncmp(path, "\\\\?\\", 4) == 0) {
748 path_str = String::NewFromUtf8(node_isolate, path + 4);
750 path_str = String::NewFromUtf8(node_isolate, path);
753 path_str = String::NewFromUtf8(node_isolate, path);
756 Local<String> cons3 =
757 String::Concat(cons2, FIXED_ONE_BYTE_STRING(node_isolate, " '"));
758 Local<String> cons4 =
759 String::Concat(cons3, path_str);
760 Local<String> cons5 =
761 String::Concat(cons4, FIXED_ONE_BYTE_STRING(node_isolate, "'"));
762 e = Exception::Error(cons5);
764 e = Exception::Error(cons2);
767 Local<Object> obj = e->ToObject();
768 // TODO(piscisaureus) errno should probably go
769 obj->Set(env->errno_string(), Integer::New(errorno, node_isolate));
770 obj->Set(env->code_string(), estring);
773 obj->Set(env->path_string(), path_str);
776 if (syscall != NULL) {
777 obj->Set(env->syscall_string(), OneByteString(node_isolate, syscall));
785 // Does about the same as strerror(),
786 // but supports all windows error messages
787 static const char *winapi_strerror(const int errorno) {
790 FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
791 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorno,
792 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&errmsg, 0, NULL);
795 // Remove trailing newlines
796 for (int i = strlen(errmsg) - 1;
797 i >= 0 && (errmsg[i] == '\n' || errmsg[i] == '\r'); i--) {
803 // FormatMessage failed
804 return "Unknown error";
809 Local<Value> WinapiErrnoException(int errorno,
813 Environment* env = Environment::GetCurrent(node_isolate);
816 if (!msg || !msg[0]) {
817 msg = winapi_strerror(errorno);
819 Local<String> message = OneByteString(node_isolate, msg);
822 Local<String> cons1 =
823 String::Concat(message, FIXED_ONE_BYTE_STRING(node_isolate, " '"));
824 Local<String> cons2 =
825 String::Concat(cons1, String::NewFromUtf8(node_isolate, path));
826 Local<String> cons3 =
827 String::Concat(cons2, FIXED_ONE_BYTE_STRING(node_isolate, "'"));
828 e = Exception::Error(cons3);
830 e = Exception::Error(message);
833 Local<Object> obj = e->ToObject();
834 obj->Set(env->errno_string(), Integer::New(errorno, node_isolate));
837 obj->Set(env->path_string(), String::NewFromUtf8(node_isolate, path));
840 if (syscall != NULL) {
841 obj->Set(env->syscall_string(), OneByteString(node_isolate, syscall));
849 void SetupAsyncListener(const FunctionCallbackInfo<Value>& args) {
850 HandleScope handle_scope(args.GetIsolate());
851 Environment* env = Environment::GetCurrent(args.GetIsolate());
853 assert(args[0]->IsObject());
854 assert(args[1]->IsFunction());
855 assert(args[2]->IsFunction());
856 assert(args[3]->IsFunction());
857 assert(args[4]->IsFunction());
858 assert(args[5]->IsFunction());
860 env->set_async_listener_run_function(args[1].As<Function>());
861 env->set_async_listener_load_function(args[2].As<Function>());
862 env->set_async_listener_unload_function(args[3].As<Function>());
863 env->set_async_listener_push_function(args[4].As<Function>());
864 env->set_async_listener_strip_function(args[5].As<Function>());
866 Local<Object> async_listener_flag_obj = args[0].As<Object>();
867 Environment::AsyncListener* async_listener = env->async_listener();
868 async_listener_flag_obj->SetIndexedPropertiesToExternalArrayData(
869 async_listener->fields(),
870 kExternalUnsignedIntArray,
871 async_listener->fields_count());
873 // Do a little housekeeping.
874 env->process_object()->Delete(
875 FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupAsyncListener"));
879 void SetupNextTick(const FunctionCallbackInfo<Value>& args) {
880 HandleScope handle_scope(args.GetIsolate());
881 Environment* env = Environment::GetCurrent(args.GetIsolate());
883 assert(args[0]->IsObject() && args[1]->IsFunction());
885 // Values use to cross communicate with processNextTick.
886 Local<Object> tick_info_obj = args[0].As<Object>();
887 tick_info_obj->SetIndexedPropertiesToExternalArrayData(
888 env->tick_info()->fields(),
889 kExternalUnsignedIntArray,
890 env->tick_info()->fields_count());
892 env->set_tick_callback_function(args[1].As<Function>());
894 // Do a little housekeeping.
895 env->process_object()->Delete(
896 FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupNextTick"));
900 Handle<Value> MakeCallback(Environment* env,
901 Handle<Object> object,
902 const Handle<Function> callback,
904 Handle<Value> argv[]) {
905 // If you hit this assertion, you forgot to enter the v8::Context first.
906 assert(env->context() == env->isolate()->GetCurrentContext());
908 Local<Object> process = env->process_object();
911 try_catch.SetVerbose(true);
913 // TODO(trevnorris): This is sucky for performance. Fix it.
914 bool has_async_queue = object->Has(env->async_queue_string());
915 if (has_async_queue) {
916 Local<Value> argv[] = { object };
917 env->async_listener_load_function()->Call(process, ARRAY_SIZE(argv), argv);
919 if (try_catch.HasCaught())
920 return Undefined(node_isolate);
923 Local<Value> ret = callback->Call(object, argc, argv);
925 if (try_catch.HasCaught()) {
926 return Undefined(node_isolate);
929 if (has_async_queue) {
930 Local<Value> val = object.As<Value>();
931 env->async_listener_unload_function()->Call(process, 1, &val);
933 if (try_catch.HasCaught())
934 return Undefined(node_isolate);
937 Environment::TickInfo* tick_info = env->tick_info();
939 if (tick_info->in_tick()) {
943 if (tick_info->length() == 0) {
944 tick_info->set_index(0);
948 tick_info->set_in_tick(true);
950 // process nextTicks after call
951 env->tick_callback_function()->Call(process, 0, NULL);
953 tick_info->set_in_tick(false);
955 if (try_catch.HasCaught()) {
956 tick_info->set_last_threw(true);
957 return Undefined(node_isolate);
965 Handle<Value> MakeCallback(Environment* env,
966 const Handle<Object> object,
969 Handle<Value> argv[]) {
970 Local<Function> callback = object->Get(index).As<Function>();
971 assert(callback->IsFunction());
973 return MakeCallback(env, object, callback, argc, argv);
977 Handle<Value> MakeCallback(Environment* env,
978 const Handle<Object> object,
979 const Handle<String> symbol,
981 Handle<Value> argv[]) {
982 Local<Function> callback = object->Get(symbol).As<Function>();
983 assert(callback->IsFunction());
984 return MakeCallback(env, object, callback, argc, argv);
988 Handle<Value> MakeCallback(Environment* env,
989 const Handle<Object> object,
992 Handle<Value> argv[]) {
993 Local<String> method_string = OneByteString(node_isolate, method);
994 return MakeCallback(env, object, method_string, argc, argv);
998 Handle<Value> MakeCallback(const Handle<Object> object,
1001 Handle<Value> argv[]) {
1002 Local<Context> context = object->CreationContext();
1003 Environment* env = Environment::GetCurrent(context);
1004 Context::Scope context_scope(context);
1005 HandleScope handle_scope(env->isolate());
1006 return handle_scope.Close(MakeCallback(env, object, method, argc, argv));
1010 Handle<Value> MakeCallback(const Handle<Object> object,
1011 const Handle<String> symbol,
1013 Handle<Value> argv[]) {
1014 Local<Context> context = object->CreationContext();
1015 Environment* env = Environment::GetCurrent(context);
1016 Context::Scope context_scope(context);
1017 HandleScope handle_scope(env->isolate());
1018 return handle_scope.Close(MakeCallback(env, object, symbol, argc, argv));
1022 Handle<Value> MakeCallback(const Handle<Object> object,
1023 const Handle<Function> callback,
1025 Handle<Value> argv[]) {
1026 Local<Context> context = object->CreationContext();
1027 Environment* env = Environment::GetCurrent(context);
1028 Context::Scope context_scope(context);
1029 HandleScope handle_scope(env->isolate());
1030 return handle_scope.Close(MakeCallback(env, object, callback, argc, argv));
1034 enum encoding ParseEncoding(Handle<Value> encoding_v, enum encoding _default) {
1035 HandleScope scope(node_isolate);
1037 if (!encoding_v->IsString())
1040 String::Utf8Value encoding(encoding_v);
1042 if (strcasecmp(*encoding, "utf8") == 0) {
1044 } else if (strcasecmp(*encoding, "utf-8") == 0) {
1046 } else if (strcasecmp(*encoding, "ascii") == 0) {
1048 } else if (strcasecmp(*encoding, "base64") == 0) {
1050 } else if (strcasecmp(*encoding, "ucs2") == 0) {
1052 } else if (strcasecmp(*encoding, "ucs-2") == 0) {
1054 } else if (strcasecmp(*encoding, "utf16le") == 0) {
1056 } else if (strcasecmp(*encoding, "utf-16le") == 0) {
1058 } else if (strcasecmp(*encoding, "binary") == 0) {
1060 } else if (strcasecmp(*encoding, "buffer") == 0) {
1062 } else if (strcasecmp(*encoding, "hex") == 0) {
1064 } else if (strcasecmp(*encoding, "raw") == 0) {
1065 if (!no_deprecation) {
1066 fprintf(stderr, "'raw' (array of integers) has been removed. "
1070 } else if (strcasecmp(*encoding, "raws") == 0) {
1071 if (!no_deprecation) {
1072 fprintf(stderr, "'raws' encoding has been renamed to 'binary'. "
1073 "Please update your code.\n");
1081 Local<Value> Encode(const void *buf, size_t len, enum encoding encoding) {
1082 return StringBytes::Encode(static_cast<const char*>(buf),
1087 // Returns -1 if the handle was not valid for decoding
1088 ssize_t DecodeBytes(v8::Handle<v8::Value> val, enum encoding encoding) {
1089 HandleScope scope(node_isolate);
1091 if (val->IsArray()) {
1092 fprintf(stderr, "'raw' encoding (array of integers) has been removed. "
1098 return StringBytes::Size(val, encoding);
1102 # define MIN(a, b) ((a) < (b) ? (a) : (b))
1105 // Returns number of bytes written.
1106 ssize_t DecodeWrite(char *buf,
1108 v8::Handle<v8::Value> val,
1109 enum encoding encoding) {
1110 return StringBytes::Write(buf, buflen, val, encoding, NULL);
1113 void DisplayExceptionLine(Handle<Message> message) {
1114 // Prevent re-entry into this function. For example, if there is
1115 // a throw from a program in vm.runInThisContext(code, filename, true),
1116 // then we want to show the original failure, not the secondary one.
1117 static bool displayed_error = false;
1119 if (displayed_error)
1121 displayed_error = true;
1123 uv_tty_reset_mode();
1125 fprintf(stderr, "\n");
1127 if (!message.IsEmpty()) {
1128 // Print (filename):(line number): (message).
1129 String::Utf8Value filename(message->GetScriptResourceName());
1130 const char* filename_string = *filename;
1131 int linenum = message->GetLineNumber();
1132 fprintf(stderr, "%s:%i\n", filename_string, linenum);
1133 // Print line of source code.
1134 String::Utf8Value sourceline(message->GetSourceLine());
1135 const char* sourceline_string = *sourceline;
1137 // Because of how node modules work, all scripts are wrapped with a
1138 // "function (module, exports, __filename, ...) {"
1139 // to provide script local variables.
1141 // When reporting errors on the first line of a script, this wrapper
1142 // function is leaked to the user. There used to be a hack here to
1143 // truncate off the first 62 characters, but it caused numerous other
1144 // problems when vm.runIn*Context() methods were used for non-module
1147 // If we ever decide to re-instate such a hack, the following steps
1150 // 1. Pass a flag around to say "this code was wrapped"
1151 // 2. Update the stack frame output so that it is also correct.
1153 // It would probably be simpler to add a line rather than add some
1154 // number of characters to the first line, since V8 truncates the
1155 // sourceline to 78 characters, and we end up not providing very much
1156 // useful debugging info to the user if we remove 62 characters.
1158 int start = message->GetStartColumn();
1159 int end = message->GetEndColumn();
1161 fprintf(stderr, "%s\n", sourceline_string);
1162 // Print wavy underline (GetUnderline is deprecated).
1163 for (int i = 0; i < start; i++) {
1164 fputc((sourceline_string[i] == '\t') ? '\t' : ' ', stderr);
1166 for (int i = start; i < end; i++) {
1169 fputc('\n', stderr);
1174 static void ReportException(Handle<Value> er, Handle<Message> message) {
1175 HandleScope scope(node_isolate);
1177 DisplayExceptionLine(message);
1179 Local<Value> trace_value;
1181 if (er->IsUndefined()) {
1182 trace_value = Undefined(node_isolate);
1185 er->ToObject()->Get(FIXED_ONE_BYTE_STRING(node_isolate, "stack"));
1188 String::Utf8Value trace(trace_value);
1190 // range errors have a trace member set to undefined
1191 if (trace.length() > 0 && !trace_value->IsUndefined()) {
1192 fprintf(stderr, "%s\n", *trace);
1194 // this really only happens for RangeErrors, since they're the only
1195 // kind that won't have all this info in the trace, or when non-Error
1196 // objects are thrown manually.
1197 Local<Value> message;
1200 if (er->IsObject()) {
1201 Local<Object> err_obj = er.As<Object>();
1202 message = err_obj->Get(FIXED_ONE_BYTE_STRING(node_isolate, "message"));
1203 name = err_obj->Get(FIXED_ONE_BYTE_STRING(node_isolate, "name"));
1206 if (message.IsEmpty() ||
1207 message->IsUndefined() ||
1209 name->IsUndefined()) {
1210 // Not an error object. Just print as-is.
1211 String::Utf8Value message(er);
1212 fprintf(stderr, "%s\n", *message);
1214 String::Utf8Value name_string(name);
1215 String::Utf8Value message_string(message);
1216 fprintf(stderr, "%s: %s\n", *name_string, *message_string);
1224 static void ReportException(const TryCatch& try_catch) {
1225 ReportException(try_catch.Exception(), try_catch.Message());
1229 // Executes a str within the current v8 context.
1230 Local<Value> ExecuteString(Handle<String> source, Handle<Value> filename) {
1231 HandleScope scope(node_isolate);
1234 // try_catch must be nonverbose to disable FatalException() handler,
1235 // we will handle exceptions ourself.
1236 try_catch.SetVerbose(false);
1238 Local<v8::Script> script = v8::Script::Compile(source, filename);
1239 if (script.IsEmpty()) {
1240 ReportException(try_catch);
1244 Local<Value> result = script->Run();
1245 if (result.IsEmpty()) {
1246 ReportException(try_catch);
1250 return scope.Close(result);
1254 static void GetActiveRequests(const FunctionCallbackInfo<Value>& args) {
1255 HandleScope scope(node_isolate);
1257 Local<Array> ary = Array::New();
1261 QUEUE_FOREACH(q, &req_wrap_queue) {
1262 ReqWrap<uv_req_t>* w = CONTAINER_OF(q, ReqWrap<uv_req_t>, req_wrap_queue_);
1263 if (w->persistent().IsEmpty())
1265 ary->Set(i++, w->object());
1268 args.GetReturnValue().Set(ary);
1272 // Non-static, friend of HandleWrap. Could have been a HandleWrap method but
1273 // implemented here for consistency with GetActiveRequests().
1274 void GetActiveHandles(const FunctionCallbackInfo<Value>& args) {
1275 HandleScope scope(node_isolate);
1277 Local<Array> ary = Array::New();
1281 Local<String> owner_sym = FIXED_ONE_BYTE_STRING(node_isolate, "owner");
1283 QUEUE_FOREACH(q, &handle_wrap_queue) {
1284 HandleWrap* w = CONTAINER_OF(q, HandleWrap, handle_wrap_queue_);
1285 if (w->persistent().IsEmpty() || (w->flags_ & HandleWrap::kUnref))
1287 Local<Object> object = w->object();
1288 Local<Value> owner = object->Get(owner_sym);
1289 if (owner->IsUndefined())
1291 ary->Set(i++, owner);
1294 args.GetReturnValue().Set(ary);
1298 static void Abort(const FunctionCallbackInfo<Value>& args) {
1303 static void Chdir(const FunctionCallbackInfo<Value>& args) {
1304 HandleScope scope(node_isolate);
1306 if (args.Length() != 1 || !args[0]->IsString()) {
1307 return ThrowError("Bad argument."); // FIXME(bnoordhuis) ThrowTypeError?
1310 String::Utf8Value path(args[0]);
1311 int err = uv_chdir(*path);
1313 return ThrowUVException(err, "uv_chdir");
1318 static void Cwd(const FunctionCallbackInfo<Value>& args) {
1319 HandleScope scope(node_isolate);
1321 /* MAX_PATH is in characters, not bytes. Make sure we have enough headroom. */
1322 char buf[MAX_PATH * 4 + 1];
1324 char buf[PATH_MAX + 1];
1327 int err = uv_cwd(buf, ARRAY_SIZE(buf) - 1);
1329 return ThrowUVException(err, "uv_cwd");
1332 buf[ARRAY_SIZE(buf) - 1] = '\0';
1333 Local<String> cwd = String::NewFromUtf8(node_isolate, buf);
1335 args.GetReturnValue().Set(cwd);
1339 static void Umask(const FunctionCallbackInfo<Value>& args) {
1340 HandleScope scope(node_isolate);
1343 if (args.Length() < 1 || args[0]->IsUndefined()) {
1345 umask(static_cast<mode_t>(old));
1346 } else if (!args[0]->IsInt32() && !args[0]->IsString()) {
1347 return ThrowTypeError("argument must be an integer or octal string.");
1350 if (args[0]->IsInt32()) {
1351 oct = args[0]->Uint32Value();
1354 String::Utf8Value str(args[0]);
1356 // Parse the octal string.
1357 for (int i = 0; i < str.length(); i++) {
1359 if (c > '7' || c < '0') {
1360 return ThrowTypeError("invalid octal string");
1366 old = umask(static_cast<mode_t>(oct));
1369 args.GetReturnValue().Set(old);
1373 #if defined(__POSIX__) && !defined(__ANDROID__)
1375 static const uid_t uid_not_found = static_cast<uid_t>(-1);
1376 static const gid_t gid_not_found = static_cast<gid_t>(-1);
1379 static uid_t uid_by_name(const char* name) {
1387 if (getpwnam_r(name, &pwd, buf, sizeof(buf), &pp) == 0 && pp != NULL) {
1391 return uid_not_found;
1395 static char* name_by_uid(uid_t uid) {
1404 if ((rc = getpwuid_r(uid, &pwd, buf, sizeof(buf), &pp)) == 0 && pp != NULL) {
1405 return strdup(pp->pw_name);
1416 static gid_t gid_by_name(const char* name) {
1424 if (getgrnam_r(name, &pwd, buf, sizeof(buf), &pp) == 0 && pp != NULL) {
1428 return gid_not_found;
1432 #if 0 // For future use.
1433 static const char* name_by_gid(gid_t gid) {
1442 if ((rc = getgrgid_r(gid, &pwd, buf, sizeof(buf), &pp)) == 0 && pp != NULL) {
1443 return strdup(pp->gr_name);
1455 static uid_t uid_by_name(Handle<Value> value) {
1456 if (value->IsUint32()) {
1457 return static_cast<uid_t>(value->Uint32Value());
1459 String::Utf8Value name(value);
1460 return uid_by_name(*name);
1465 static gid_t gid_by_name(Handle<Value> value) {
1466 if (value->IsUint32()) {
1467 return static_cast<gid_t>(value->Uint32Value());
1469 String::Utf8Value name(value);
1470 return gid_by_name(*name);
1475 static void GetUid(const FunctionCallbackInfo<Value>& args) {
1476 // uid_t is an uint32_t on all supported platforms.
1477 args.GetReturnValue().Set(static_cast<uint32_t>(getuid()));
1481 static void GetGid(const FunctionCallbackInfo<Value>& args) {
1482 // gid_t is an uint32_t on all supported platforms.
1483 args.GetReturnValue().Set(static_cast<uint32_t>(getgid()));
1487 static void SetGid(const FunctionCallbackInfo<Value>& args) {
1488 HandleScope scope(node_isolate);
1490 if (!args[0]->IsUint32() && !args[0]->IsString()) {
1491 return ThrowTypeError("setgid argument must be a number or a string");
1494 gid_t gid = gid_by_name(args[0]);
1496 if (gid == gid_not_found) {
1497 return ThrowError("setgid group id does not exist");
1501 return ThrowErrnoException(errno, "setgid");
1506 static void SetUid(const FunctionCallbackInfo<Value>& args) {
1507 HandleScope scope(node_isolate);
1509 if (!args[0]->IsUint32() && !args[0]->IsString()) {
1510 return ThrowTypeError("setuid argument must be a number or a string");
1513 uid_t uid = uid_by_name(args[0]);
1515 if (uid == uid_not_found) {
1516 return ThrowError("setuid user id does not exist");
1520 return ThrowErrnoException(errno, "setuid");
1525 static void GetGroups(const FunctionCallbackInfo<Value>& args) {
1526 HandleScope scope(node_isolate);
1528 int ngroups = getgroups(0, NULL);
1530 if (ngroups == -1) {
1531 return ThrowErrnoException(errno, "getgroups");
1534 gid_t* groups = new gid_t[ngroups];
1536 ngroups = getgroups(ngroups, groups);
1538 if (ngroups == -1) {
1540 return ThrowErrnoException(errno, "getgroups");
1543 Local<Array> groups_list = Array::New(ngroups);
1544 bool seen_egid = false;
1545 gid_t egid = getegid();
1547 for (int i = 0; i < ngroups; i++) {
1548 groups_list->Set(i, Integer::New(groups[i], node_isolate));
1549 if (groups[i] == egid)
1555 if (seen_egid == false) {
1556 groups_list->Set(ngroups, Integer::New(egid, node_isolate));
1559 args.GetReturnValue().Set(groups_list);
1563 static void SetGroups(const FunctionCallbackInfo<Value>& args) {
1564 HandleScope scope(node_isolate);
1566 if (!args[0]->IsArray()) {
1567 return ThrowTypeError("argument 1 must be an array");
1570 Local<Array> groups_list = args[0].As<Array>();
1571 size_t size = groups_list->Length();
1572 gid_t* groups = new gid_t[size];
1574 for (size_t i = 0; i < size; i++) {
1575 gid_t gid = gid_by_name(groups_list->Get(i));
1577 if (gid == gid_not_found) {
1579 return ThrowError("group name not found");
1585 int rc = setgroups(size, groups);
1589 return ThrowErrnoException(errno, "setgroups");
1594 static void InitGroups(const FunctionCallbackInfo<Value>& args) {
1595 HandleScope scope(node_isolate);
1597 if (!args[0]->IsUint32() && !args[0]->IsString()) {
1598 return ThrowTypeError("argument 1 must be a number or a string");
1601 if (!args[1]->IsUint32() && !args[1]->IsString()) {
1602 return ThrowTypeError("argument 2 must be a number or a string");
1605 String::Utf8Value arg0(args[0]);
1610 if (args[0]->IsUint32()) {
1611 user = name_by_uid(args[0]->Uint32Value());
1619 return ThrowError("initgroups user not found");
1622 extra_group = gid_by_name(args[1]);
1624 if (extra_group == gid_not_found) {
1627 return ThrowError("initgroups extra group not found");
1630 int rc = initgroups(user, extra_group);
1637 return ThrowErrnoException(errno, "initgroups");
1641 #endif // __POSIX__ && !defined(__ANDROID__)
1644 void Exit(const FunctionCallbackInfo<Value>& args) {
1645 HandleScope scope(node_isolate);
1646 exit(args[0]->IntegerValue());
1650 static void Uptime(const FunctionCallbackInfo<Value>& args) {
1651 HandleScope scope(node_isolate);
1653 if (uv_uptime(&uptime))
1655 args.GetReturnValue().Set(uptime - prog_start_time);
1659 void MemoryUsage(const FunctionCallbackInfo<Value>& args) {
1660 HandleScope handle_scope(args.GetIsolate());
1661 Environment* env = Environment::GetCurrent(args.GetIsolate());
1664 int err = uv_resident_set_memory(&rss);
1666 return ThrowUVException(err, "uv_resident_set_memory");
1670 HeapStatistics v8_heap_stats;
1671 node_isolate->GetHeapStatistics(&v8_heap_stats);
1673 Local<Integer> heap_total =
1674 Integer::NewFromUnsigned(v8_heap_stats.total_heap_size(), node_isolate);
1675 Local<Integer> heap_used =
1676 Integer::NewFromUnsigned(v8_heap_stats.used_heap_size(), node_isolate);
1678 Local<Object> info = Object::New();
1679 info->Set(env->rss_string(), Number::New(node_isolate, rss));
1680 info->Set(env->heap_total_string(), heap_total);
1681 info->Set(env->heap_used_string(), heap_used);
1683 args.GetReturnValue().Set(info);
1687 void Kill(const FunctionCallbackInfo<Value>& args) {
1688 HandleScope scope(node_isolate);
1690 if (args.Length() != 2) {
1691 return ThrowError("Bad argument.");
1694 int pid = args[0]->IntegerValue();
1695 int sig = args[1]->Int32Value();
1696 int err = uv_kill(pid, sig);
1697 args.GetReturnValue().Set(err);
1700 // used in Hrtime() below
1701 #define NANOS_PER_SEC 1000000000
1703 // Hrtime exposes libuv's uv_hrtime() high-resolution timer.
1704 // The value returned by uv_hrtime() is a 64-bit int representing nanoseconds,
1705 // so this function instead returns an Array with 2 entries representing seconds
1706 // and nanoseconds, to avoid any integer overflow possibility.
1707 // Pass in an Array from a previous hrtime() call to instead get a time diff.
1708 void Hrtime(const FunctionCallbackInfo<Value>& args) {
1709 HandleScope scope(node_isolate);
1711 uint64_t t = uv_hrtime();
1713 if (args.Length() > 0) {
1714 // return a time diff tuple
1715 if (!args[0]->IsArray()) {
1716 return ThrowTypeError("process.hrtime() only accepts an Array tuple.");
1718 Local<Array> inArray = Local<Array>::Cast(args[0]);
1719 uint64_t seconds = inArray->Get(0)->Uint32Value();
1720 uint64_t nanos = inArray->Get(1)->Uint32Value();
1721 t -= (seconds * NANOS_PER_SEC) + nanos;
1724 Local<Array> tuple = Array::New(2);
1725 tuple->Set(0, Integer::NewFromUnsigned(t / NANOS_PER_SEC, node_isolate));
1726 tuple->Set(1, Integer::NewFromUnsigned(t % NANOS_PER_SEC, node_isolate));
1727 args.GetReturnValue().Set(tuple);
1731 typedef void (UV_DYNAMIC* extInit)(Handle<Object> exports);
1733 // DLOpen is process.dlopen(module, filename).
1734 // Used to load 'module.node' dynamically shared objects.
1736 // FIXME(bnoordhuis) Not multi-context ready. TBD how to resolve the conflict
1737 // when two contexts try to load the same shared object. Maybe have a shadow
1738 // cache that's a plain C list or hash table that's shared across contexts?
1739 void DLOpen(const FunctionCallbackInfo<Value>& args) {
1740 HandleScope handle_scope(args.GetIsolate());
1741 Environment* env = Environment::GetCurrent(args.GetIsolate());
1742 char symbol[1024], *base, *pos;
1746 if (args.Length() < 2) {
1747 return ThrowError("process.dlopen takes exactly 2 arguments.");
1750 Local<Object> module = args[0]->ToObject(); // Cast
1751 String::Utf8Value filename(args[1]); // Cast
1753 Local<String> exports_string = env->exports_string();
1754 Local<Object> exports = module->Get(exports_string)->ToObject();
1756 if (uv_dlopen(*filename, &lib)) {
1757 Local<String> errmsg = OneByteString(env->isolate(), uv_dlerror(&lib));
1759 // Windows needs to add the filename into the error message
1760 errmsg = String::Concat(errmsg, args[1]->ToString());
1762 ThrowException(Exception::Error(errmsg));
1766 String::Utf8Value path(args[1]);
1769 /* Find the shared library filename within the full path. */
1771 pos = strrchr(base, '/');
1777 pos = strpbrk(base, "\\/:");
1785 /* Strip the .node extension. */
1786 pos = strrchr(base, '.');
1791 /* Add the `_module` suffix to the extension name. */
1792 r = snprintf(symbol, sizeof symbol, "%s_module", base);
1793 if (r <= 0 || static_cast<size_t>(r) >= sizeof symbol) {
1794 return ThrowError("Out of memory.");
1797 /* Replace dashes with underscores. When loading foo-bar.node,
1798 * look for foo_bar_module, not foo-bar_module.
1800 for (pos = symbol; *pos != '\0'; ++pos) {
1805 node_module_struct *mod;
1806 if (uv_dlsym(&lib, symbol, reinterpret_cast<void**>(&mod))) {
1808 snprintf(errmsg, sizeof(errmsg), "Symbol %s not found.", symbol);
1809 return ThrowError(errmsg);
1812 if (mod->version != NODE_MODULE_VERSION) {
1816 "Module version mismatch. Expected %d, got %d.",
1817 NODE_MODULE_VERSION, mod->version);
1818 return ThrowError(errmsg);
1821 // Execute the C++ module
1822 if (mod->register_context_func != NULL) {
1823 mod->register_context_func(exports, module, env->context());
1824 } else if (mod->register_func != NULL) {
1825 mod->register_func(exports, module);
1827 return ThrowError("Module has no declared entry point.");
1830 // Tell coverity that 'handle' should not be freed when we return.
1831 // coverity[leaked_storage]
1835 static void OnFatalError(const char* location, const char* message) {
1837 fprintf(stderr, "FATAL ERROR: %s %s\n", location, message);
1839 fprintf(stderr, "FATAL ERROR: %s\n", message);
1849 NO_RETURN void FatalError(const char* location, const char* message) {
1850 OnFatalError(location, message);
1851 // to supress compiler warning
1856 void FatalException(Handle<Value> error, Handle<Message> message) {
1857 HandleScope scope(node_isolate);
1859 Environment* env = Environment::GetCurrent(node_isolate);
1860 Local<Object> process_object = env->process_object();
1861 Local<String> fatal_exception_string = env->fatal_exception_string();
1862 Local<Function> fatal_exception_function =
1863 process_object->Get(fatal_exception_string).As<Function>();
1865 if (!fatal_exception_function->IsFunction()) {
1866 // failed before the process._fatalException function was added!
1867 // this is probably pretty bad. Nothing to do but report and exit.
1868 ReportException(error, message);
1872 TryCatch fatal_try_catch;
1874 // Do not call FatalException when _fatalException handler throws
1875 fatal_try_catch.SetVerbose(false);
1877 // this will return true if the JS layer handled it, false otherwise
1878 Local<Value> caught =
1879 fatal_exception_function->Call(process_object, 1, &error);
1881 if (fatal_try_catch.HasCaught()) {
1882 // the fatal exception function threw, so we must exit
1883 ReportException(fatal_try_catch);
1887 if (false == caught->BooleanValue()) {
1888 ReportException(error, message);
1894 void FatalException(const TryCatch& try_catch) {
1895 HandleScope scope(node_isolate);
1896 // TODO(bajtos) do not call FatalException if try_catch is verbose
1897 // (requires V8 API to expose getter for try_catch.is_verbose_)
1898 FatalException(try_catch.Exception(), try_catch.Message());
1902 void OnMessage(Handle<Message> message, Handle<Value> error) {
1903 // The current version of V8 sends messages for errors only
1904 // (thus `error` is always set).
1905 FatalException(error, message);
1909 static void Binding(const FunctionCallbackInfo<Value>& args) {
1910 HandleScope handle_scope(args.GetIsolate());
1911 Environment* env = Environment::GetCurrent(args.GetIsolate());
1913 Local<String> module = args[0]->ToString();
1914 String::Utf8Value module_v(module);
1916 Local<Object> cache = env->binding_cache_object();
1917 Local<Object> exports;
1919 if (cache->Has(module)) {
1920 exports = cache->Get(module)->ToObject();
1921 args.GetReturnValue().Set(exports);
1925 // Append a string to process.moduleLoadList
1927 snprintf(buf, sizeof(buf), "Binding %s", *module_v);
1929 Local<Array> modules = env->module_load_list_array();
1930 uint32_t l = modules->Length();
1931 modules->Set(l, OneByteString(node_isolate, buf));
1933 node_module_struct* mod = get_builtin_module(*module_v);
1935 exports = Object::New();
1936 // Internal bindings don't have a "module" object, only exports.
1937 assert(mod->register_func == NULL);
1938 assert(mod->register_context_func != NULL);
1939 Local<Value> unused = Undefined(env->isolate());
1940 mod->register_context_func(exports, unused, env->context());
1941 cache->Set(module, exports);
1942 } else if (!strcmp(*module_v, "constants")) {
1943 exports = Object::New();
1944 DefineConstants(exports);
1945 cache->Set(module, exports);
1946 } else if (!strcmp(*module_v, "natives")) {
1947 exports = Object::New();
1948 DefineJavaScript(exports);
1949 cache->Set(module, exports);
1951 return ThrowError("No such module");
1954 args.GetReturnValue().Set(exports);
1958 static void ProcessTitleGetter(Local<String> property,
1959 const PropertyCallbackInfo<Value>& info) {
1960 HandleScope scope(node_isolate);
1962 uv_get_process_title(buffer, sizeof(buffer));
1963 info.GetReturnValue().Set(String::NewFromUtf8(node_isolate, buffer));
1967 static void ProcessTitleSetter(Local<String> property,
1969 const PropertyCallbackInfo<void>& info) {
1970 HandleScope scope(node_isolate);
1971 String::Utf8Value title(value);
1972 // TODO(piscisaureus): protect with a lock
1973 uv_set_process_title(*title);
1977 static void EnvGetter(Local<String> property,
1978 const PropertyCallbackInfo<Value>& info) {
1979 HandleScope scope(node_isolate);
1981 String::Utf8Value key(property);
1982 const char* val = getenv(*key);
1984 return info.GetReturnValue().Set(String::NewFromUtf8(node_isolate, val));
1987 String::Value key(property);
1988 WCHAR buffer[32767]; // The maximum size allowed for environment variables.
1989 DWORD result = GetEnvironmentVariableW(reinterpret_cast<WCHAR*>(*key),
1991 ARRAY_SIZE(buffer));
1992 // If result >= sizeof buffer the buffer was too small. That should never
1993 // happen. If result == 0 and result != ERROR_SUCCESS the variable was not
1995 if ((result > 0 || GetLastError() == ERROR_SUCCESS) &&
1996 result < ARRAY_SIZE(buffer)) {
1997 const uint16_t* two_byte_buffer = reinterpret_cast<const uint16_t*>(buffer);
1998 Local<String> rc = String::NewFromTwoByte(node_isolate, two_byte_buffer);
1999 return info.GetReturnValue().Set(rc);
2002 // Not found. Fetch from prototype.
2003 info.GetReturnValue().Set(
2004 info.Data().As<Object>()->Get(property));
2008 static void EnvSetter(Local<String> property,
2010 const PropertyCallbackInfo<Value>& info) {
2011 HandleScope scope(node_isolate);
2013 String::Utf8Value key(property);
2014 String::Utf8Value val(value);
2015 setenv(*key, *val, 1);
2017 String::Value key(property);
2018 String::Value val(value);
2019 WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key);
2020 // Environment variables that start with '=' are read-only.
2021 if (key_ptr[0] != L'=') {
2022 SetEnvironmentVariableW(key_ptr, reinterpret_cast<WCHAR*>(*val));
2025 // Whether it worked or not, always return rval.
2026 info.GetReturnValue().Set(value);
2030 static void EnvQuery(Local<String> property,
2031 const PropertyCallbackInfo<Integer>& info) {
2032 HandleScope scope(node_isolate);
2033 int32_t rc = -1; // Not found unless proven otherwise.
2035 String::Utf8Value key(property);
2039 String::Value key(property);
2040 WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key);
2041 if (GetEnvironmentVariableW(key_ptr, NULL, 0) > 0 ||
2042 GetLastError() == ERROR_SUCCESS) {
2044 if (key_ptr[0] == L'=') {
2045 // Environment variables that start with '=' are hidden and read-only.
2046 rc = static_cast<int32_t>(v8::ReadOnly) |
2047 static_cast<int32_t>(v8::DontDelete) |
2048 static_cast<int32_t>(v8::DontEnum);
2053 info.GetReturnValue().Set(rc);
2057 static void EnvDeleter(Local<String> property,
2058 const PropertyCallbackInfo<Boolean>& info) {
2059 HandleScope scope(node_isolate);
2062 String::Utf8Value key(property);
2063 rc = getenv(*key) != NULL;
2067 String::Value key(property);
2068 WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key);
2069 if (key_ptr[0] == L'=' || !SetEnvironmentVariableW(key_ptr, NULL)) {
2070 // Deletion failed. Return true if the key wasn't there in the first place,
2071 // false if it is still there.
2072 rc = GetEnvironmentVariableW(key_ptr, NULL, NULL) == 0 &&
2073 GetLastError() != ERROR_SUCCESS;
2076 info.GetReturnValue().Set(rc);
2080 static void EnvEnumerator(const PropertyCallbackInfo<Array>& info) {
2081 HandleScope scope(node_isolate);
2084 while (environ[size])
2087 Local<Array> env = Array::New(size);
2089 for (int i = 0; i < size; ++i) {
2090 const char* var = environ[i];
2091 const char* s = strchr(var, '=');
2092 const int length = s ? s - var : strlen(var);
2093 Local<String> name = String::NewFromUtf8(node_isolate,
2095 String::kNormalString,
2100 WCHAR* environment = GetEnvironmentStringsW();
2101 if (environment == NULL)
2102 return; // This should not happen.
2103 Local<Array> env = Array::New();
2104 WCHAR* p = environment;
2106 while (*p != NULL) {
2109 // If the key starts with '=' it is a hidden environment variable.
2113 s = wcschr(p, L'=');
2118 const uint16_t* two_byte_buffer = reinterpret_cast<const uint16_t*>(p);
2119 const size_t two_byte_buffer_len = s - p;
2120 Local<String> value = String::NewFromTwoByte(node_isolate,
2122 String::kNormalString,
2123 two_byte_buffer_len);
2124 env->Set(i++, value);
2125 p = s + wcslen(s) + 1;
2127 FreeEnvironmentStringsW(environment);
2130 info.GetReturnValue().Set(env);
2134 static Handle<Object> GetFeatures() {
2135 HandleScope scope(node_isolate);
2137 Local<Object> obj = Object::New();
2138 #if defined(DEBUG) && DEBUG
2139 Local<Value> debug = True(node_isolate);
2141 Local<Value> debug = False(node_isolate);
2142 #endif // defined(DEBUG) && DEBUG
2144 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "debug"), debug);
2146 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "uv"), True(node_isolate));
2147 // TODO(bnoordhuis) ping libuv
2148 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "ipv6"), True(node_isolate));
2150 #ifdef OPENSSL_NPN_NEGOTIATED
2151 Local<Boolean> tls_npn = True(node_isolate);
2153 Local<Boolean> tls_npn = False(node_isolate);
2155 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "tls_npn"), tls_npn);
2157 #ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2158 Local<Boolean> tls_sni = True(node_isolate);
2160 Local<Boolean> tls_sni = False(node_isolate);
2162 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "tls_sni"), tls_sni);
2164 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "tls"),
2165 Boolean::New(get_builtin_module("crypto") != NULL));
2167 return scope.Close(obj);
2171 static void DebugPortGetter(Local<String> property,
2172 const PropertyCallbackInfo<Value>& info) {
2173 HandleScope scope(node_isolate);
2174 info.GetReturnValue().Set(debug_port);
2178 static void DebugPortSetter(Local<String> property,
2180 const PropertyCallbackInfo<void>& info) {
2181 HandleScope scope(node_isolate);
2182 debug_port = value->NumberValue();
2186 static void DebugProcess(const FunctionCallbackInfo<Value>& args);
2187 static void DebugPause(const FunctionCallbackInfo<Value>& args);
2188 static void DebugEnd(const FunctionCallbackInfo<Value>& args);
2191 void NeedImmediateCallbackGetter(Local<String> property,
2192 const PropertyCallbackInfo<Value>& info) {
2193 HandleScope handle_scope(info.GetIsolate());
2194 Environment* env = Environment::GetCurrent(info.GetIsolate());
2195 const uv_check_t* immediate_check_handle = env->immediate_check_handle();
2196 bool active = uv_is_active(
2197 reinterpret_cast<const uv_handle_t*>(immediate_check_handle));
2198 info.GetReturnValue().Set(active);
2202 static void NeedImmediateCallbackSetter(
2203 Local<String> property,
2205 const PropertyCallbackInfo<void>& info) {
2206 HandleScope handle_scope(info.GetIsolate());
2207 Environment* env = Environment::GetCurrent(info.GetIsolate());
2209 uv_check_t* immediate_check_handle = env->immediate_check_handle();
2210 bool active = uv_is_active(
2211 reinterpret_cast<const uv_handle_t*>(immediate_check_handle));
2213 if (active == value->BooleanValue())
2216 uv_idle_t* immediate_idle_handle = env->immediate_idle_handle();
2219 uv_check_stop(immediate_check_handle);
2220 uv_idle_stop(immediate_idle_handle);
2222 uv_check_start(immediate_check_handle, CheckImmediate);
2223 // Idle handle is needed only to stop the event loop from blocking in poll.
2224 uv_idle_start(immediate_idle_handle, IdleImmediateDummy);
2229 void SetIdle(uv_prepare_t* handle, int) {
2230 Environment* env = Environment::from_idle_prepare_handle(handle);
2231 env->isolate()->GetCpuProfiler()->SetIdle(true);
2235 void ClearIdle(uv_check_t* handle, int) {
2236 Environment* env = Environment::from_idle_check_handle(handle);
2237 env->isolate()->GetCpuProfiler()->SetIdle(false);
2241 void StartProfilerIdleNotifier(Environment* env) {
2242 uv_prepare_start(env->idle_prepare_handle(), SetIdle);
2243 uv_check_start(env->idle_check_handle(), ClearIdle);
2247 void StopProfilerIdleNotifier(Environment* env) {
2248 uv_prepare_stop(env->idle_prepare_handle());
2249 uv_check_stop(env->idle_check_handle());
2253 void StartProfilerIdleNotifier(const FunctionCallbackInfo<Value>& args) {
2254 HandleScope handle_scope(args.GetIsolate());
2255 Environment* env = Environment::GetCurrent(args.GetIsolate());
2256 StartProfilerIdleNotifier(env);
2260 void StopProfilerIdleNotifier(const FunctionCallbackInfo<Value>& args) {
2261 HandleScope handle_scope(args.GetIsolate());
2262 Environment* env = Environment::GetCurrent(args.GetIsolate());
2263 StopProfilerIdleNotifier(env);
2267 #define READONLY_PROPERTY(obj, str, var) \
2269 obj->Set(OneByteString(node_isolate, str), var, v8::ReadOnly); \
2273 void SetupProcessObject(Environment* env,
2275 const char* const* argv,
2277 const char* const* exec_argv) {
2278 HandleScope scope(node_isolate);
2280 Local<Object> process = env->process_object();
2282 process->SetAccessor(FIXED_ONE_BYTE_STRING(node_isolate, "title"),
2284 ProcessTitleSetter);
2287 READONLY_PROPERTY(process,
2289 FIXED_ONE_BYTE_STRING(node_isolate, NODE_VERSION));
2291 // process.moduleLoadList
2292 READONLY_PROPERTY(process,
2294 env->module_load_list_array());
2297 Local<Object> versions = Object::New();
2298 READONLY_PROPERTY(process, "versions", versions);
2300 const char http_parser_version[] = NODE_STRINGIFY(HTTP_PARSER_VERSION_MAJOR)
2302 NODE_STRINGIFY(HTTP_PARSER_VERSION_MINOR);
2303 READONLY_PROPERTY(versions,
2305 FIXED_ONE_BYTE_STRING(node_isolate, http_parser_version));
2307 // +1 to get rid of the leading 'v'
2308 READONLY_PROPERTY(versions,
2310 OneByteString(node_isolate, NODE_VERSION + 1));
2311 READONLY_PROPERTY(versions,
2313 OneByteString(node_isolate, V8::GetVersion()));
2314 READONLY_PROPERTY(versions,
2316 OneByteString(node_isolate, uv_version_string()));
2317 READONLY_PROPERTY(versions,
2319 FIXED_ONE_BYTE_STRING(node_isolate, ZLIB_VERSION));
2321 const char node_modules_version[] = NODE_STRINGIFY(NODE_MODULE_VERSION);
2322 READONLY_PROPERTY(versions,
2324 FIXED_ONE_BYTE_STRING(node_isolate, node_modules_version));
2327 // Stupid code to slice out the version string.
2328 { // NOLINT(whitespace/braces)
2331 for (i = j = 0, k = sizeof(OPENSSL_VERSION_TEXT) - 1; i < k; ++i) {
2332 c = OPENSSL_VERSION_TEXT[i];
2333 if ('0' <= c && c <= '9') {
2334 for (j = i + 1; j < k; ++j) {
2335 c = OPENSSL_VERSION_TEXT[j];
2345 OneByteString(node_isolate, &OPENSSL_VERSION_TEXT[i], j - i));
2350 READONLY_PROPERTY(process, "arch", OneByteString(node_isolate, ARCH));
2353 READONLY_PROPERTY(process,
2355 OneByteString(node_isolate, PLATFORM));
2358 Local<Array> arguments = Array::New(argc);
2359 for (int i = 0; i < argc; ++i) {
2360 arguments->Set(i, String::NewFromUtf8(node_isolate, argv[i]));
2362 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "argv"), arguments);
2365 Local<Array> exec_arguments = Array::New(exec_argc);
2366 for (int i = 0; i < exec_argc; ++i) {
2367 exec_arguments->Set(i, String::NewFromUtf8(node_isolate, exec_argv[i]));
2369 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "execArgv"), exec_arguments);
2371 // create process.env
2372 Local<ObjectTemplate> process_env_template = ObjectTemplate::New();
2373 process_env_template->SetNamedPropertyHandler(EnvGetter,
2379 Local<Object> process_env = process_env_template->NewInstance();
2380 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "env"), process_env);
2382 READONLY_PROPERTY(process, "pid", Integer::New(getpid(), node_isolate));
2383 READONLY_PROPERTY(process, "features", GetFeatures());
2384 process->SetAccessor(
2385 FIXED_ONE_BYTE_STRING(node_isolate, "_needImmediateCallback"),
2386 NeedImmediateCallbackGetter,
2387 NeedImmediateCallbackSetter);
2391 READONLY_PROPERTY(process,
2393 String::NewFromUtf8(node_isolate, eval_string));
2398 READONLY_PROPERTY(process, "_print_eval", True(node_isolate));
2401 // -i, --interactive
2403 READONLY_PROPERTY(process, "_forceRepl", True(node_isolate));
2407 if (no_deprecation) {
2408 READONLY_PROPERTY(process, "noDeprecation", True(node_isolate));
2411 // --throw-deprecation
2412 if (throw_deprecation) {
2413 READONLY_PROPERTY(process, "throwDeprecation", True(node_isolate));
2416 // --trace-deprecation
2417 if (trace_deprecation) {
2418 READONLY_PROPERTY(process, "traceDeprecation", True(node_isolate));
2421 size_t exec_path_len = 2 * PATH_MAX;
2422 char* exec_path = new char[exec_path_len];
2423 Local<String> exec_path_value;
2424 if (uv_exepath(exec_path, &exec_path_len) == 0) {
2425 exec_path_value = String::NewFromUtf8(node_isolate,
2427 String::kNormalString,
2430 exec_path_value = String::NewFromUtf8(node_isolate, argv[0]);
2432 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "execPath"),
2436 process->SetAccessor(FIXED_ONE_BYTE_STRING(node_isolate, "debugPort"),
2440 // define various internal methods
2441 NODE_SET_METHOD(process,
2442 "_startProfilerIdleNotifier",
2443 StartProfilerIdleNotifier);
2444 NODE_SET_METHOD(process,
2445 "_stopProfilerIdleNotifier",
2446 StopProfilerIdleNotifier);
2447 NODE_SET_METHOD(process, "_getActiveRequests", GetActiveRequests);
2448 NODE_SET_METHOD(process, "_getActiveHandles", GetActiveHandles);
2449 NODE_SET_METHOD(process, "reallyExit", Exit);
2450 NODE_SET_METHOD(process, "abort", Abort);
2451 NODE_SET_METHOD(process, "chdir", Chdir);
2452 NODE_SET_METHOD(process, "cwd", Cwd);
2454 NODE_SET_METHOD(process, "umask", Umask);
2456 #if defined(__POSIX__) && !defined(__ANDROID__)
2457 NODE_SET_METHOD(process, "getuid", GetUid);
2458 NODE_SET_METHOD(process, "setuid", SetUid);
2460 NODE_SET_METHOD(process, "setgid", SetGid);
2461 NODE_SET_METHOD(process, "getgid", GetGid);
2463 NODE_SET_METHOD(process, "getgroups", GetGroups);
2464 NODE_SET_METHOD(process, "setgroups", SetGroups);
2465 NODE_SET_METHOD(process, "initgroups", InitGroups);
2466 #endif // __POSIX__ && !defined(__ANDROID__)
2468 NODE_SET_METHOD(process, "_kill", Kill);
2470 NODE_SET_METHOD(process, "_debugProcess", DebugProcess);
2471 NODE_SET_METHOD(process, "_debugPause", DebugPause);
2472 NODE_SET_METHOD(process, "_debugEnd", DebugEnd);
2474 NODE_SET_METHOD(process, "hrtime", Hrtime);
2476 NODE_SET_METHOD(process, "dlopen", DLOpen);
2478 NODE_SET_METHOD(process, "uptime", Uptime);
2479 NODE_SET_METHOD(process, "memoryUsage", MemoryUsage);
2481 NODE_SET_METHOD(process, "binding", Binding);
2483 NODE_SET_METHOD(process, "_setupAsyncListener", SetupAsyncListener);
2484 NODE_SET_METHOD(process, "_setupNextTick", SetupNextTick);
2486 // values use to cross communicate with processNextTick
2487 Local<Object> tick_info_obj = Object::New();
2488 tick_info_obj->SetIndexedPropertiesToExternalArrayData(
2489 env->tick_info()->fields(),
2490 kExternalUnsignedIntArray,
2491 env->tick_info()->fields_count());
2492 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "_tickInfo"), tick_info_obj);
2494 // pre-set _events object for faster emit checks
2495 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "_events"), Object::New());
2499 #undef READONLY_PROPERTY
2502 static void AtExit() {
2503 uv_tty_reset_mode();
2507 static void SignalExit(int signal) {
2508 uv_tty_reset_mode();
2509 _exit(128 + signal);
2513 // Most of the time, it's best to use `console.error` to write
2514 // to the process.stderr stream. However, in some cases, such as
2515 // when debugging the stream.Writable class or the process.nextTick
2516 // function, it is useful to bypass JavaScript entirely.
2517 static void RawDebug(const FunctionCallbackInfo<Value>& args) {
2518 HandleScope scope(node_isolate);
2520 assert(args.Length() == 1 && args[0]->IsString() &&
2521 "must be called with a single string");
2523 String::Utf8Value message(args[0]);
2524 fprintf(stderr, "%s\n", *message);
2529 void Load(Environment* env) {
2530 HandleScope handle_scope(node_isolate);
2532 // Compile, execute the src/node.js file. (Which was included as static C
2533 // string in node_natives.h. 'natve_node' is the string containing that
2536 // The node.js file returns a function 'f'
2541 // Disable verbose mode to stop FatalException() handler from trying
2542 // to handle the exception. Errors this early in the start-up phase
2543 // are not safe to ignore.
2544 try_catch.SetVerbose(false);
2546 Local<String> script_name = FIXED_ONE_BYTE_STRING(node_isolate, "node.js");
2547 Local<Value> f_value = ExecuteString(MainSource(), script_name);
2548 if (try_catch.HasCaught()) {
2549 ReportException(try_catch);
2552 assert(f_value->IsFunction());
2553 Local<Function> f = Local<Function>::Cast(f_value);
2555 // Now we call 'f' with the 'process' variable that we've built up with
2556 // all our bindings. Inside node.js we'll take care of assigning things to
2559 // We start the process this way in order to be more modular. Developers
2560 // who do not like how 'src/node.js' setups the module system but do like
2561 // Node's I/O bindings may want to replace 'f' with their own function.
2563 // Add a reference to the global object
2564 Local<Object> global = env->context()->Global();
2566 #if defined HAVE_DTRACE || defined HAVE_ETW
2570 #if defined HAVE_PERFCTR
2571 InitPerfCounters(global);
2574 // Enable handling of uncaught exceptions
2575 // (FatalException(), break on uncaught exception in debugger)
2577 // This is not strictly necessary since it's almost impossible
2578 // to attach the debugger fast enought to break on exception
2579 // thrown during process startup.
2580 try_catch.SetVerbose(true);
2582 NODE_SET_METHOD(env->process_object(), "_rawDebug", RawDebug);
2584 Local<Value> arg = env->process_object();
2585 f->Call(global, 1, &arg);
2588 static void PrintHelp();
2590 static bool ParseDebugOpt(const char* arg) {
2591 const char* port = NULL;
2593 if (!strcmp(arg, "--debug")) {
2594 use_debug_agent = true;
2595 } else if (!strncmp(arg, "--debug=", sizeof("--debug=") - 1)) {
2596 use_debug_agent = true;
2597 port = arg + sizeof("--debug=") - 1;
2598 } else if (!strcmp(arg, "--debug-brk")) {
2599 use_debug_agent = true;
2600 debug_wait_connect = true;
2601 } else if (!strncmp(arg, "--debug-brk=", sizeof("--debug-brk=") - 1)) {
2602 use_debug_agent = true;
2603 debug_wait_connect = true;
2604 port = arg + sizeof("--debug-brk=") - 1;
2605 } else if (!strncmp(arg, "--debug-port=", sizeof("--debug-port=") - 1)) {
2606 port = arg + sizeof("--debug-port=") - 1;
2612 debug_port = atoi(port);
2613 if (debug_port < 1024 || debug_port > 65535) {
2614 fprintf(stderr, "Debug port must be in range 1024 to 65535.\n");
2623 static void PrintHelp() {
2624 printf("Usage: node [options] [ -e script | script.js ] [arguments] \n"
2625 " node debug script.js [arguments] \n"
2628 " -v, --version print node's version\n"
2629 " -e, --eval script evaluate script\n"
2630 " -p, --print evaluate script and print result\n"
2631 " -i, --interactive always enter the REPL even if stdin\n"
2632 " does not appear to be a terminal\n"
2633 " --no-deprecation silence deprecation warnings\n"
2634 " --trace-deprecation show stack traces on deprecations\n"
2635 " --v8-options print v8 command line options\n"
2636 " --max-stack-size=val set max v8 stack size (bytes)\n"
2638 "Environment variables:\n"
2640 "NODE_PATH ';'-separated list of directories\n"
2642 "NODE_PATH ':'-separated list of directories\n"
2644 " prefixed to the module search path.\n"
2645 "NODE_MODULE_CONTEXTS Set to 1 to load modules in their own\n"
2646 " global contexts.\n"
2647 "NODE_DISABLE_COLORS Set to 1 to disable colors in the REPL\n"
2649 "Documentation can be found at http://nodejs.org/\n");
2653 // Parse command line arguments.
2655 // argv is modified in place. exec_argv and v8_argv are out arguments that
2656 // ParseArgs() allocates memory for and stores a pointer to the output
2657 // vector in. The caller should free them with delete[].
2661 // * argv contains the arguments with node and V8 options filtered out.
2662 // * exec_argv contains both node and V8 options and nothing else.
2663 // * v8_argv contains argv[0] plus any V8 options
2664 static void ParseArgs(int* argc,
2667 const char*** exec_argv,
2669 const char*** v8_argv) {
2670 const unsigned int nargs = static_cast<unsigned int>(*argc);
2671 const char** new_exec_argv = new const char*[nargs];
2672 const char** new_v8_argv = new const char*[nargs];
2673 const char** new_argv = new const char*[nargs];
2675 for (unsigned int i = 0; i < nargs; ++i) {
2676 new_exec_argv[i] = NULL;
2677 new_v8_argv[i] = NULL;
2681 // exec_argv starts with the first option, the other two start with argv[0].
2682 unsigned int new_exec_argc = 0;
2683 unsigned int new_v8_argc = 1;
2684 unsigned int new_argc = 1;
2685 new_v8_argv[0] = argv[0];
2686 new_argv[0] = argv[0];
2688 unsigned int index = 1;
2689 while (index < nargs && argv[index][0] == '-') {
2690 const char* const arg = argv[index];
2691 unsigned int args_consumed = 1;
2693 if (ParseDebugOpt(arg)) {
2694 // Done, consumed by ParseDebugOpt().
2695 } else if (strcmp(arg, "--version") == 0 || strcmp(arg, "-v") == 0) {
2696 printf("%s\n", NODE_VERSION);
2698 } else if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
2701 } else if (strcmp(arg, "--eval") == 0 ||
2702 strcmp(arg, "-e") == 0 ||
2703 strcmp(arg, "--print") == 0 ||
2704 strcmp(arg, "-pe") == 0 ||
2705 strcmp(arg, "-p") == 0) {
2706 bool is_eval = strchr(arg, 'e') != NULL;
2707 bool is_print = strchr(arg, 'p') != NULL;
2708 print_eval = print_eval || is_print;
2709 // --eval, -e and -pe always require an argument.
2710 if (is_eval == true) {
2712 eval_string = argv[index + 1];
2713 if (eval_string == NULL) {
2714 fprintf(stderr, "%s: %s requires an argument\n", argv[0], arg);
2717 } else if (argv[index + 1] != NULL && argv[index + 1][0] != '-') {
2719 eval_string = argv[index + 1];
2720 if (strncmp(eval_string, "\\-", 2) == 0) {
2721 // Starts with "\\-": escaped expression, drop the backslash.
2725 } else if (strcmp(arg, "--interactive") == 0 || strcmp(arg, "-i") == 0) {
2727 } else if (strcmp(arg, "--no-deprecation") == 0) {
2728 no_deprecation = true;
2729 } else if (strcmp(arg, "--trace-deprecation") == 0) {
2730 trace_deprecation = true;
2731 } else if (strcmp(arg, "--throw-deprecation") == 0) {
2732 throw_deprecation = true;
2733 } else if (strcmp(arg, "--v8-options") == 0) {
2734 new_v8_argv[new_v8_argc] = "--help";
2737 // V8 option. Pass through as-is.
2738 new_v8_argv[new_v8_argc] = arg;
2742 memcpy(new_exec_argv + new_exec_argc,
2744 args_consumed * sizeof(*argv));
2746 new_exec_argc += args_consumed;
2747 index += args_consumed;
2750 // Copy remaining arguments.
2751 const unsigned int args_left = nargs - index;
2752 memcpy(new_argv + new_argc, argv + index, args_left * sizeof(*argv));
2753 new_argc += args_left;
2755 *exec_argc = new_exec_argc;
2756 *exec_argv = new_exec_argv;
2757 *v8_argc = new_v8_argc;
2758 *v8_argv = new_v8_argv;
2760 // Copy new_argv over argv and update argc.
2761 memcpy(argv, new_argv, new_argc * sizeof(*argv));
2763 *argc = static_cast<int>(new_argc);
2767 // Called from V8 Debug Agent TCP thread.
2768 static void DispatchMessagesDebugAgentCallback() {
2769 uv_async_send(&dispatch_debug_messages_async);
2773 // Called from the main thread.
2774 static void EnableDebug(bool wait_connect) {
2775 assert(debugger_running == false);
2776 Isolate* isolate = node_isolate; // TODO(bnoordhuis) Multi-isolate support.
2777 Isolate::Scope isolate_scope(isolate);
2778 HandleScope handle_scope(isolate);
2779 v8::Debug::SetDebugMessageDispatchHandler(DispatchMessagesDebugAgentCallback,
2781 debugger_running = v8::Debug::EnableAgent("node " NODE_VERSION,
2784 if (debugger_running == false) {
2785 fprintf(stderr, "Starting debugger on port %d failed\n", debug_port);
2789 fprintf(stderr, "Debugger listening on port %d\n", debug_port);
2792 Environment* env = Environment::GetCurrentChecked(isolate);
2794 return; // Still starting up.
2796 Context::Scope context_scope(env->context());
2797 Local<Object> message = Object::New();
2798 message->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "cmd"),
2799 FIXED_ONE_BYTE_STRING(env->isolate(), "NODE_DEBUG_ENABLED"));
2800 Local<Value> argv[] = {
2801 FIXED_ONE_BYTE_STRING(env->isolate(), "internalMessage"),
2804 MakeCallback(env, env->process_object(), "emit", ARRAY_SIZE(argv), argv);
2808 // Called from the main thread.
2809 static void DispatchDebugMessagesAsyncCallback(uv_async_t* handle, int status) {
2810 if (debugger_running == false) {
2811 fprintf(stderr, "Starting debugger agent.\n");
2814 Isolate::Scope isolate_scope(node_isolate);
2815 v8::Debug::ProcessDebugMessages();
2820 static volatile sig_atomic_t caught_early_debug_signal;
2823 static void EarlyDebugSignalHandler(int signo) {
2824 caught_early_debug_signal = 1;
2828 static void InstallEarlyDebugSignalHandler() {
2829 struct sigaction sa;
2830 memset(&sa, 0, sizeof(sa));
2831 sa.sa_handler = EarlyDebugSignalHandler;
2832 sigaction(SIGUSR1, &sa, NULL);
2836 static void EnableDebugSignalHandler(int signo) {
2837 // Call only async signal-safe functions here!
2838 v8::Debug::DebugBreak(*static_cast<Isolate* volatile*>(&node_isolate));
2839 uv_async_send(&dispatch_debug_messages_async);
2843 static void RegisterSignalHandler(int signal, void (*handler)(int signal)) {
2844 struct sigaction sa;
2845 memset(&sa, 0, sizeof(sa));
2846 sa.sa_handler = handler;
2847 sigfillset(&sa.sa_mask);
2848 sigaction(signal, &sa, NULL);
2852 void DebugProcess(const FunctionCallbackInfo<Value>& args) {
2853 HandleScope scope(node_isolate);
2855 if (args.Length() != 1) {
2856 return ThrowError("Invalid number of arguments.");
2862 pid = args[0]->IntegerValue();
2863 r = kill(pid, SIGUSR1);
2865 return ThrowErrnoException(errno, "kill");
2870 static int RegisterDebugSignalHandler() {
2871 // FIXME(bnoordhuis) Should be per-isolate or per-context, not global.
2872 RegisterSignalHandler(SIGUSR1, EnableDebugSignalHandler);
2873 // If we caught a SIGUSR1 during the bootstrap process, re-raise it
2874 // now that the debugger infrastructure is in place.
2875 if (caught_early_debug_signal)
2883 DWORD WINAPI EnableDebugThreadProc(void* arg) {
2884 v8::Debug::DebugBreak(*static_cast<Isolate* volatile*>(&node_isolate));
2885 uv_async_send(&dispatch_debug_messages_async);
2890 static int GetDebugSignalHandlerMappingName(DWORD pid, wchar_t* buf,
2892 return _snwprintf(buf, buf_len, L"node-debug-handler-%u", pid);
2896 static int RegisterDebugSignalHandler() {
2897 wchar_t mapping_name[32];
2898 HANDLE mapping_handle;
2900 LPTHREAD_START_ROUTINE* handler;
2902 pid = GetCurrentProcessId();
2904 if (GetDebugSignalHandlerMappingName(pid,
2906 ARRAY_SIZE(mapping_name)) < 0) {
2910 mapping_handle = CreateFileMappingW(INVALID_HANDLE_VALUE,
2916 if (mapping_handle == NULL) {
2920 handler = reinterpret_cast<LPTHREAD_START_ROUTINE*>(
2921 MapViewOfFile(mapping_handle,
2922 FILE_MAP_ALL_ACCESS,
2926 if (handler == NULL) {
2927 CloseHandle(mapping_handle);
2931 *handler = EnableDebugThreadProc;
2933 UnmapViewOfFile(static_cast<void*>(handler));
2939 static void DebugProcess(const FunctionCallbackInfo<Value>& args) {
2940 HandleScope scope(node_isolate);
2942 HANDLE process = NULL;
2943 HANDLE thread = NULL;
2944 HANDLE mapping = NULL;
2945 wchar_t mapping_name[32];
2946 LPTHREAD_START_ROUTINE* handler = NULL;
2948 if (args.Length() != 1) {
2949 ThrowError("Invalid number of arguments.");
2953 pid = (DWORD) args[0]->IntegerValue();
2955 process = OpenProcess(PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION |
2956 PROCESS_VM_OPERATION | PROCESS_VM_WRITE |
2960 if (process == NULL) {
2961 ThrowException(WinapiErrnoException(GetLastError(), "OpenProcess"));
2965 if (GetDebugSignalHandlerMappingName(pid,
2967 ARRAY_SIZE(mapping_name)) < 0) {
2968 ThrowErrnoException(errno, "sprintf");
2972 mapping = OpenFileMappingW(FILE_MAP_READ, FALSE, mapping_name);
2973 if (mapping == NULL) {
2974 ThrowException(WinapiErrnoException(GetLastError(), "OpenFileMappingW"));
2978 handler = reinterpret_cast<LPTHREAD_START_ROUTINE*>(
2979 MapViewOfFile(mapping,
2984 if (handler == NULL || *handler == NULL) {
2985 ThrowException(WinapiErrnoException(GetLastError(), "MapViewOfFile"));
2989 thread = CreateRemoteThread(process,
2996 if (thread == NULL) {
2997 ThrowException(WinapiErrnoException(GetLastError(), "CreateRemoteThread"));
3001 // Wait for the thread to terminate
3002 if (WaitForSingleObject(thread, INFINITE) != WAIT_OBJECT_0) {
3003 ThrowException(WinapiErrnoException(GetLastError(), "WaitForSingleObject"));
3008 if (process != NULL)
3009 CloseHandle(process);
3011 CloseHandle(thread);
3012 if (handler != NULL)
3013 UnmapViewOfFile(handler);
3014 if (mapping != NULL)
3015 CloseHandle(mapping);
3020 static void DebugPause(const FunctionCallbackInfo<Value>& args) {
3021 v8::Debug::DebugBreak(node_isolate);
3025 static void DebugEnd(const FunctionCallbackInfo<Value>& args) {
3026 if (debugger_running) {
3027 v8::Debug::DisableAgent();
3028 debugger_running = false;
3033 void Init(int* argc,
3036 const char*** exec_argv) {
3037 // Initialize prog_start_time to get relative uptime.
3038 uv_uptime(&prog_start_time);
3040 // Make inherited handles noninheritable.
3041 uv_disable_stdio_inheritance();
3043 // init async debug messages dispatching
3044 // FIXME(bnoordhuis) Should be per-isolate or per-context, not global.
3045 uv_async_init(uv_default_loop(),
3046 &dispatch_debug_messages_async,
3047 DispatchDebugMessagesAsyncCallback);
3048 uv_unref(reinterpret_cast<uv_handle_t*>(&dispatch_debug_messages_async));
3050 // Parse a few arguments which are specific to Node.
3052 const char** v8_argv;
3053 ParseArgs(argc, argv, exec_argc, exec_argv, &v8_argc, &v8_argv);
3055 // TODO(bnoordhuis) Intercept --prof arguments and start the CPU profiler
3056 // manually? That would give us a little more control over its runtime
3057 // behavior but it could also interfere with the user's intentions in ways
3058 // we fail to anticipate. Dillema.
3059 for (int i = 1; i < v8_argc; ++i) {
3060 if (strncmp(v8_argv[i], "--prof", sizeof("--prof") - 1) == 0) {
3061 v8_is_profiling = true;
3066 // The const_cast doesn't violate conceptual const-ness. V8 doesn't modify
3067 // the argv array or the elements it points to.
3068 V8::SetFlagsFromCommandLine(&v8_argc, const_cast<char**>(v8_argv), true);
3070 // Anything that's still in v8_argv is not a V8 or a node option.
3071 for (int i = 1; i < v8_argc; i++) {
3072 fprintf(stderr, "%s: bad option: %s\n", argv[0], v8_argv[i]);
3081 if (debug_wait_connect) {
3082 const char expose_debug_as[] = "--expose_debug_as=v8debug";
3083 V8::SetFlagsFromString(expose_debug_as, sizeof(expose_debug_as) - 1);
3086 V8::SetArrayBufferAllocator(&ArrayBufferAllocator::the_singleton);
3088 // Fetch a reference to the main isolate, so we have a reference to it
3089 // even when we need it to access it from another (debugger) thread.
3090 node_isolate = Isolate::GetCurrent();
3093 // Raise the open file descriptor limit.
3094 { // NOLINT (whitespace/braces)
3096 if (getrlimit(RLIMIT_NOFILE, &lim) == 0 && lim.rlim_cur != lim.rlim_max) {
3097 // Do a binary search for the limit.
3098 rlim_t min = lim.rlim_cur;
3099 rlim_t max = 1 << 20;
3100 // But if there's a defined upper bound, don't search, just set it.
3101 if (lim.rlim_max != RLIM_INFINITY) {
3106 lim.rlim_cur = min + (max - min) / 2;
3107 if (setrlimit(RLIMIT_NOFILE, &lim)) {
3112 } while (min + 1 < max);
3116 RegisterSignalHandler(SIGPIPE, SIG_IGN);
3117 RegisterSignalHandler(SIGINT, SignalExit);
3118 RegisterSignalHandler(SIGTERM, SignalExit);
3121 V8::SetFatalErrorHandler(node::OnFatalError);
3122 V8::AddMessageListener(OnMessage);
3124 // If the --debug flag was specified then initialize the debug thread.
3125 if (use_debug_agent) {
3126 EnableDebug(debug_wait_connect);
3128 RegisterDebugSignalHandler();
3133 struct AtExitCallback {
3134 AtExitCallback* next_;
3135 void (*cb_)(void* arg);
3139 static AtExitCallback* at_exit_functions_;
3142 // TODO(bnoordhuis) Turn into per-context event.
3143 void RunAtExit(Environment* env) {
3144 AtExitCallback* p = at_exit_functions_;
3145 at_exit_functions_ = NULL;
3148 AtExitCallback* q = p->next_;
3156 void AtExit(void (*cb)(void* arg), void* arg) {
3157 AtExitCallback* p = new AtExitCallback;
3160 p->next_ = at_exit_functions_;
3161 at_exit_functions_ = p;
3165 void EmitExit(Environment* env) {
3166 // process.emit('exit')
3167 HandleScope handle_scope(env->isolate());
3168 Context::Scope context_scope(env->context());
3169 Local<Object> process_object = env->process_object();
3170 process_object->Set(FIXED_ONE_BYTE_STRING(node_isolate, "_exiting"),
3171 True(node_isolate));
3173 Handle<String> exitCode = FIXED_ONE_BYTE_STRING(node_isolate, "exitCode");
3174 int code = process_object->Get(exitCode)->IntegerValue();
3176 Local<Value> args[] = {
3177 FIXED_ONE_BYTE_STRING(node_isolate, "exit"),
3178 Integer::New(code, node_isolate)
3181 MakeCallback(env, process_object, "emit", ARRAY_SIZE(args), args);
3186 Environment* CreateEnvironment(Isolate* isolate,
3188 const char* const* argv,
3190 const char* const* exec_argv) {
3191 HandleScope handle_scope(isolate);
3193 Local<Context> context = Context::New(isolate);
3194 Context::Scope context_scope(context);
3195 Environment* env = Environment::New(context);
3197 uv_check_init(env->event_loop(), env->immediate_check_handle());
3199 reinterpret_cast<uv_handle_t*>(env->immediate_check_handle()));
3200 uv_idle_init(env->event_loop(), env->immediate_idle_handle());
3202 // Inform V8's CPU profiler when we're idle. The profiler is sampling-based
3203 // but not all samples are created equal; mark the wall clock time spent in
3204 // epoll_wait() and friends so profiling tools can filter it out. The samples
3205 // still end up in v8.log but with state=IDLE rather than state=EXTERNAL.
3206 // TODO(bnoordhuis) Depends on a libuv implementation detail that we should
3207 // probably fortify in the API contract, namely that the last started prepare
3208 // or check watcher runs first. It's not 100% foolproof; if an add-on starts
3209 // a prepare or check watcher after us, any samples attributed to its callback
3210 // will be recorded with state=IDLE.
3211 uv_prepare_init(env->event_loop(), env->idle_prepare_handle());
3212 uv_check_init(env->event_loop(), env->idle_check_handle());
3213 uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_prepare_handle()));
3214 uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_check_handle()));
3216 if (v8_is_profiling) {
3217 StartProfilerIdleNotifier(env);
3220 Local<FunctionTemplate> process_template = FunctionTemplate::New();
3221 process_template->SetClassName(FIXED_ONE_BYTE_STRING(isolate, "process"));
3223 Local<Object> process_object = process_template->GetFunction()->NewInstance();
3224 env->set_process_object(process_object);
3226 SetupProcessObject(env, argc, argv, exec_argc, exec_argv);
3233 int Start(int argc, char** argv) {
3234 #if !defined(_WIN32)
3235 // Try hard not to lose SIGUSR1 signals during the bootstrap process.
3236 InstallEarlyDebugSignalHandler();
3241 // Hack around with the argv pointer. Used for process.title = "blah".
3242 argv = uv_setup_args(argc, argv);
3244 // This needs to run *before* V8::Initialize(). The const_cast is not
3245 // optional, in case you're wondering.
3247 const char** exec_argv;
3248 Init(&argc, const_cast<const char**>(argv), &exec_argc, &exec_argv);
3251 // V8 on Windows doesn't have a good source of entropy. Seed it from
3253 V8::SetEntropySource(crypto::EntropySource);
3258 Locker locker(node_isolate);
3260 CreateEnvironment(node_isolate, argc, argv, exec_argc, exec_argv);
3261 // This Context::Scope is here so EnableDebug() can look up the current
3262 // environment with Environment::GetCurrentChecked().
3263 // TODO(bnoordhuis) Reorder the debugger initialization logic so it can
3265 Context::Scope context_scope(env->context());
3266 uv_run(env->event_loop(), UV_RUN_DEFAULT);
3274 // Clean up. Not strictly necessary.
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