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 SetupDomainUse(const FunctionCallbackInfo<Value>& args) {
880 Environment* env = Environment::GetCurrent(args.GetIsolate());
882 if (env->using_domains())
884 env->set_using_domains(true);
886 HandleScope scope(node_isolate);
887 Local<Object> process_object = env->process_object();
889 Local<String> tick_callback_function_key =
890 FIXED_ONE_BYTE_STRING(node_isolate, "_tickDomainCallback");
891 Local<Function> tick_callback_function =
892 process_object->Get(tick_callback_function_key).As<Function>();
894 if (!tick_callback_function->IsFunction()) {
895 fprintf(stderr, "process._tickDomainCallback assigned to non-function\n");
899 process_object->Set(FIXED_ONE_BYTE_STRING(node_isolate, "_tickCallback"),
900 tick_callback_function);
901 env->set_tick_callback_function(tick_callback_function);
903 assert(args[0]->IsArray());
904 assert(args[1]->IsObject());
906 env->set_domain_array(args[0].As<Array>());
908 Local<Object> domain_flag_obj = args[1].As<Object>();
909 Environment::DomainFlag* domain_flag = env->domain_flag();
910 domain_flag_obj->SetIndexedPropertiesToExternalArrayData(
911 domain_flag->fields(),
912 kExternalUnsignedIntArray,
913 domain_flag->fields_count());
915 // Do a little housekeeping.
916 env->process_object()->Delete(
917 FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupDomainUse"));
921 void SetupNextTick(const FunctionCallbackInfo<Value>& args) {
922 HandleScope handle_scope(args.GetIsolate());
923 Environment* env = Environment::GetCurrent(args.GetIsolate());
925 assert(args[0]->IsObject());
926 assert(args[1]->IsFunction());
928 // Values use to cross communicate with processNextTick.
929 Local<Object> tick_info_obj = args[0].As<Object>();
930 tick_info_obj->SetIndexedPropertiesToExternalArrayData(
931 env->tick_info()->fields(),
932 kExternalUnsignedIntArray,
933 env->tick_info()->fields_count());
935 env->set_tick_callback_function(args[1].As<Function>());
937 // Do a little housekeeping.
938 env->process_object()->Delete(
939 FIXED_ONE_BYTE_STRING(args.GetIsolate(), "_setupNextTick"));
943 Handle<Value> MakeDomainCallback(Environment* env,
944 Handle<Object> object,
945 const Handle<Function> callback,
947 Handle<Value> argv[]) {
948 // If you hit this assertion, you forgot to enter the v8::Context first.
949 assert(env->context() == env->isolate()->GetCurrentContext());
951 Local<Object> process = env->process_object();
952 Local<Value> domain_v = object->Get(env->domain_string());
953 Local<Object> domain;
956 try_catch.SetVerbose(true);
958 // TODO(trevnorris): This is sucky for performance. Fix it.
959 bool has_async_queue = object->Has(env->async_queue_string());
960 if (has_async_queue) {
961 Local<Value> argv[] = { object };
962 env->async_listener_load_function()->Call(process, ARRAY_SIZE(argv), argv);
964 if (try_catch.HasCaught())
965 return Undefined(node_isolate);
968 bool has_domain = domain_v->IsObject();
970 domain = domain_v.As<Object>();
972 if (domain->Get(env->disposed_string())->IsTrue()) {
973 // domain has been disposed of.
974 return Undefined(node_isolate);
977 Local<Function> enter =
978 domain->Get(env->enter_string()).As<Function>();
979 assert(enter->IsFunction());
980 enter->Call(domain, 0, NULL);
982 if (try_catch.HasCaught()) {
983 return Undefined(node_isolate);
987 Local<Value> ret = callback->Call(object, argc, argv);
989 if (try_catch.HasCaught()) {
990 return Undefined(node_isolate);
994 Local<Function> exit =
995 domain->Get(env->exit_string()).As<Function>();
996 assert(exit->IsFunction());
997 exit->Call(domain, 0, NULL);
999 if (try_catch.HasCaught()) {
1000 return Undefined(node_isolate);
1004 if (has_async_queue) {
1005 Local<Value> val = object.As<Value>();
1006 env->async_listener_unload_function()->Call(process, 1, &val);
1008 if (try_catch.HasCaught())
1009 return Undefined(node_isolate);
1012 Environment::TickInfo* tick_info = env->tick_info();
1014 if (tick_info->last_threw() == 1) {
1015 tick_info->set_last_threw(0);
1019 if (tick_info->in_tick()) {
1023 if (tick_info->length() == 0) {
1024 tick_info->set_index(0);
1028 tick_info->set_in_tick(true);
1030 env->tick_callback_function()->Call(process, 0, NULL);
1032 tick_info->set_in_tick(false);
1034 if (try_catch.HasCaught()) {
1035 tick_info->set_last_threw(true);
1036 return Undefined(node_isolate);
1043 Handle<Value> MakeCallback(Environment* env,
1044 Handle<Object> object,
1045 const Handle<Function> callback,
1047 Handle<Value> argv[]) {
1048 if (env->using_domains())
1049 return MakeDomainCallback(env, object, callback, argc, argv);
1051 // If you hit this assertion, you forgot to enter the v8::Context first.
1052 assert(env->context() == env->isolate()->GetCurrentContext());
1054 Local<Object> process = env->process_object();
1057 try_catch.SetVerbose(true);
1059 // TODO(trevnorris): This is sucky for performance. Fix it.
1060 bool has_async_queue = object->Has(env->async_queue_string());
1061 if (has_async_queue) {
1062 Local<Value> argv[] = { object };
1063 env->async_listener_load_function()->Call(process, ARRAY_SIZE(argv), argv);
1065 if (try_catch.HasCaught())
1066 return Undefined(node_isolate);
1069 Local<Value> ret = callback->Call(object, argc, argv);
1071 if (try_catch.HasCaught()) {
1072 return Undefined(node_isolate);
1075 if (has_async_queue) {
1076 Local<Value> val = object.As<Value>();
1077 env->async_listener_unload_function()->Call(process, 1, &val);
1079 if (try_catch.HasCaught())
1080 return Undefined(node_isolate);
1083 Environment::TickInfo* tick_info = env->tick_info();
1085 if (tick_info->in_tick()) {
1089 if (tick_info->length() == 0) {
1090 tick_info->set_index(0);
1094 tick_info->set_in_tick(true);
1096 // process nextTicks after call
1097 env->tick_callback_function()->Call(process, 0, NULL);
1099 tick_info->set_in_tick(false);
1101 if (try_catch.HasCaught()) {
1102 tick_info->set_last_threw(true);
1103 return Undefined(node_isolate);
1111 Handle<Value> MakeCallback(Environment* env,
1112 const Handle<Object> object,
1115 Handle<Value> argv[]) {
1116 Local<Function> callback = object->Get(index).As<Function>();
1117 assert(callback->IsFunction());
1119 return MakeCallback(env, object, callback, argc, argv);
1123 Handle<Value> MakeCallback(Environment* env,
1124 const Handle<Object> object,
1125 const Handle<String> symbol,
1127 Handle<Value> argv[]) {
1128 Local<Function> callback = object->Get(symbol).As<Function>();
1129 assert(callback->IsFunction());
1130 return MakeCallback(env, object, callback, argc, argv);
1134 Handle<Value> MakeCallback(Environment* env,
1135 const Handle<Object> object,
1138 Handle<Value> argv[]) {
1139 Local<String> method_string = OneByteString(node_isolate, method);
1140 return MakeCallback(env, object, method_string, argc, argv);
1144 Handle<Value> MakeCallback(const Handle<Object> object,
1147 Handle<Value> argv[]) {
1148 Local<Context> context = object->CreationContext();
1149 Environment* env = Environment::GetCurrent(context);
1150 Context::Scope context_scope(context);
1151 HandleScope handle_scope(env->isolate());
1152 return handle_scope.Close(MakeCallback(env, object, method, argc, argv));
1156 Handle<Value> MakeCallback(const Handle<Object> object,
1157 const Handle<String> symbol,
1159 Handle<Value> argv[]) {
1160 Local<Context> context = object->CreationContext();
1161 Environment* env = Environment::GetCurrent(context);
1162 Context::Scope context_scope(context);
1163 HandleScope handle_scope(env->isolate());
1164 return handle_scope.Close(MakeCallback(env, object, symbol, argc, argv));
1168 Handle<Value> MakeCallback(const Handle<Object> object,
1169 const Handle<Function> callback,
1171 Handle<Value> argv[]) {
1172 Local<Context> context = object->CreationContext();
1173 Environment* env = Environment::GetCurrent(context);
1174 Context::Scope context_scope(context);
1175 HandleScope handle_scope(env->isolate());
1176 return handle_scope.Close(MakeCallback(env, object, callback, argc, argv));
1180 Handle<Value> MakeDomainCallback(const Handle<Object> object,
1181 const Handle<Function> callback,
1183 Handle<Value> argv[]) {
1184 Local<Context> context = object->CreationContext();
1185 Environment* env = Environment::GetCurrent(context);
1186 Context::Scope context_scope(context);
1187 HandleScope handle_scope(env->isolate());
1188 return handle_scope.Close(
1189 MakeDomainCallback(env, object, callback, argc, argv));
1193 enum encoding ParseEncoding(Handle<Value> encoding_v, enum encoding _default) {
1194 HandleScope scope(node_isolate);
1196 if (!encoding_v->IsString())
1199 String::Utf8Value encoding(encoding_v);
1201 if (strcasecmp(*encoding, "utf8") == 0) {
1203 } else if (strcasecmp(*encoding, "utf-8") == 0) {
1205 } else if (strcasecmp(*encoding, "ascii") == 0) {
1207 } else if (strcasecmp(*encoding, "base64") == 0) {
1209 } else if (strcasecmp(*encoding, "ucs2") == 0) {
1211 } else if (strcasecmp(*encoding, "ucs-2") == 0) {
1213 } else if (strcasecmp(*encoding, "utf16le") == 0) {
1215 } else if (strcasecmp(*encoding, "utf-16le") == 0) {
1217 } else if (strcasecmp(*encoding, "binary") == 0) {
1219 } else if (strcasecmp(*encoding, "buffer") == 0) {
1221 } else if (strcasecmp(*encoding, "hex") == 0) {
1223 } else if (strcasecmp(*encoding, "raw") == 0) {
1224 if (!no_deprecation) {
1225 fprintf(stderr, "'raw' (array of integers) has been removed. "
1229 } else if (strcasecmp(*encoding, "raws") == 0) {
1230 if (!no_deprecation) {
1231 fprintf(stderr, "'raws' encoding has been renamed to 'binary'. "
1232 "Please update your code.\n");
1240 Local<Value> Encode(const void *buf, size_t len, enum encoding encoding) {
1241 return StringBytes::Encode(static_cast<const char*>(buf),
1246 // Returns -1 if the handle was not valid for decoding
1247 ssize_t DecodeBytes(v8::Handle<v8::Value> val, enum encoding encoding) {
1248 HandleScope scope(node_isolate);
1250 if (val->IsArray()) {
1251 fprintf(stderr, "'raw' encoding (array of integers) has been removed. "
1257 return StringBytes::Size(val, encoding);
1261 # define MIN(a, b) ((a) < (b) ? (a) : (b))
1264 // Returns number of bytes written.
1265 ssize_t DecodeWrite(char *buf,
1267 v8::Handle<v8::Value> val,
1268 enum encoding encoding) {
1269 return StringBytes::Write(buf, buflen, val, encoding, NULL);
1272 void DisplayExceptionLine(Handle<Message> message) {
1273 // Prevent re-entry into this function. For example, if there is
1274 // a throw from a program in vm.runInThisContext(code, filename, true),
1275 // then we want to show the original failure, not the secondary one.
1276 static bool displayed_error = false;
1278 if (displayed_error)
1280 displayed_error = true;
1282 uv_tty_reset_mode();
1284 fprintf(stderr, "\n");
1286 if (!message.IsEmpty()) {
1287 // Print (filename):(line number): (message).
1288 String::Utf8Value filename(message->GetScriptResourceName());
1289 const char* filename_string = *filename;
1290 int linenum = message->GetLineNumber();
1291 fprintf(stderr, "%s:%i\n", filename_string, linenum);
1292 // Print line of source code.
1293 String::Utf8Value sourceline(message->GetSourceLine());
1294 const char* sourceline_string = *sourceline;
1296 // Because of how node modules work, all scripts are wrapped with a
1297 // "function (module, exports, __filename, ...) {"
1298 // to provide script local variables.
1300 // When reporting errors on the first line of a script, this wrapper
1301 // function is leaked to the user. There used to be a hack here to
1302 // truncate off the first 62 characters, but it caused numerous other
1303 // problems when vm.runIn*Context() methods were used for non-module
1306 // If we ever decide to re-instate such a hack, the following steps
1309 // 1. Pass a flag around to say "this code was wrapped"
1310 // 2. Update the stack frame output so that it is also correct.
1312 // It would probably be simpler to add a line rather than add some
1313 // number of characters to the first line, since V8 truncates the
1314 // sourceline to 78 characters, and we end up not providing very much
1315 // useful debugging info to the user if we remove 62 characters.
1317 int start = message->GetStartColumn();
1318 int end = message->GetEndColumn();
1320 fprintf(stderr, "%s\n", sourceline_string);
1321 // Print wavy underline (GetUnderline is deprecated).
1322 for (int i = 0; i < start; i++) {
1323 fputc((sourceline_string[i] == '\t') ? '\t' : ' ', stderr);
1325 for (int i = start; i < end; i++) {
1328 fputc('\n', stderr);
1333 static void ReportException(Handle<Value> er, Handle<Message> message) {
1334 HandleScope scope(node_isolate);
1336 DisplayExceptionLine(message);
1338 Local<Value> trace_value;
1340 if (er->IsUndefined() || er->IsNull()) {
1341 trace_value = Undefined(node_isolate);
1344 er->ToObject()->Get(FIXED_ONE_BYTE_STRING(node_isolate, "stack"));
1347 String::Utf8Value trace(trace_value);
1349 // range errors have a trace member set to undefined
1350 if (trace.length() > 0 && !trace_value->IsUndefined()) {
1351 fprintf(stderr, "%s\n", *trace);
1353 // this really only happens for RangeErrors, since they're the only
1354 // kind that won't have all this info in the trace, or when non-Error
1355 // objects are thrown manually.
1356 Local<Value> message;
1359 if (er->IsObject()) {
1360 Local<Object> err_obj = er.As<Object>();
1361 message = err_obj->Get(FIXED_ONE_BYTE_STRING(node_isolate, "message"));
1362 name = err_obj->Get(FIXED_ONE_BYTE_STRING(node_isolate, "name"));
1365 if (message.IsEmpty() ||
1366 message->IsUndefined() ||
1368 name->IsUndefined()) {
1369 // Not an error object. Just print as-is.
1370 String::Utf8Value message(er);
1371 fprintf(stderr, "%s\n", *message);
1373 String::Utf8Value name_string(name);
1374 String::Utf8Value message_string(message);
1375 fprintf(stderr, "%s: %s\n", *name_string, *message_string);
1383 static void ReportException(const TryCatch& try_catch) {
1384 ReportException(try_catch.Exception(), try_catch.Message());
1388 // Executes a str within the current v8 context.
1389 Local<Value> ExecuteString(Handle<String> source, Handle<Value> filename) {
1390 HandleScope scope(node_isolate);
1393 // try_catch must be nonverbose to disable FatalException() handler,
1394 // we will handle exceptions ourself.
1395 try_catch.SetVerbose(false);
1397 Local<v8::Script> script = v8::Script::Compile(source, filename);
1398 if (script.IsEmpty()) {
1399 ReportException(try_catch);
1403 Local<Value> result = script->Run();
1404 if (result.IsEmpty()) {
1405 ReportException(try_catch);
1409 return scope.Close(result);
1413 static void GetActiveRequests(const FunctionCallbackInfo<Value>& args) {
1414 HandleScope scope(node_isolate);
1416 Local<Array> ary = Array::New();
1420 QUEUE_FOREACH(q, &req_wrap_queue) {
1421 ReqWrap<uv_req_t>* w = CONTAINER_OF(q, ReqWrap<uv_req_t>, req_wrap_queue_);
1422 if (w->persistent().IsEmpty())
1424 ary->Set(i++, w->object());
1427 args.GetReturnValue().Set(ary);
1431 // Non-static, friend of HandleWrap. Could have been a HandleWrap method but
1432 // implemented here for consistency with GetActiveRequests().
1433 void GetActiveHandles(const FunctionCallbackInfo<Value>& args) {
1434 HandleScope scope(node_isolate);
1436 Local<Array> ary = Array::New();
1440 Local<String> owner_sym = FIXED_ONE_BYTE_STRING(node_isolate, "owner");
1442 QUEUE_FOREACH(q, &handle_wrap_queue) {
1443 HandleWrap* w = CONTAINER_OF(q, HandleWrap, handle_wrap_queue_);
1444 if (w->persistent().IsEmpty() || (w->flags_ & HandleWrap::kUnref))
1446 Local<Object> object = w->object();
1447 Local<Value> owner = object->Get(owner_sym);
1448 if (owner->IsUndefined())
1450 ary->Set(i++, owner);
1453 args.GetReturnValue().Set(ary);
1457 static void Abort(const FunctionCallbackInfo<Value>& args) {
1462 static void Chdir(const FunctionCallbackInfo<Value>& args) {
1463 HandleScope scope(node_isolate);
1465 if (args.Length() != 1 || !args[0]->IsString()) {
1466 return ThrowError("Bad argument."); // FIXME(bnoordhuis) ThrowTypeError?
1469 String::Utf8Value path(args[0]);
1470 int err = uv_chdir(*path);
1472 return ThrowUVException(err, "uv_chdir");
1477 static void Cwd(const FunctionCallbackInfo<Value>& args) {
1478 HandleScope scope(node_isolate);
1480 /* MAX_PATH is in characters, not bytes. Make sure we have enough headroom. */
1481 char buf[MAX_PATH * 4 + 1];
1483 char buf[PATH_MAX + 1];
1486 int err = uv_cwd(buf, ARRAY_SIZE(buf) - 1);
1488 return ThrowUVException(err, "uv_cwd");
1491 buf[ARRAY_SIZE(buf) - 1] = '\0';
1492 Local<String> cwd = String::NewFromUtf8(node_isolate, buf);
1494 args.GetReturnValue().Set(cwd);
1498 static void Umask(const FunctionCallbackInfo<Value>& args) {
1499 HandleScope scope(node_isolate);
1502 if (args.Length() < 1 || args[0]->IsUndefined()) {
1504 umask(static_cast<mode_t>(old));
1505 } else if (!args[0]->IsInt32() && !args[0]->IsString()) {
1506 return ThrowTypeError("argument must be an integer or octal string.");
1509 if (args[0]->IsInt32()) {
1510 oct = args[0]->Uint32Value();
1513 String::Utf8Value str(args[0]);
1515 // Parse the octal string.
1516 for (int i = 0; i < str.length(); i++) {
1518 if (c > '7' || c < '0') {
1519 return ThrowTypeError("invalid octal string");
1525 old = umask(static_cast<mode_t>(oct));
1528 args.GetReturnValue().Set(old);
1532 #if defined(__POSIX__) && !defined(__ANDROID__)
1534 static const uid_t uid_not_found = static_cast<uid_t>(-1);
1535 static const gid_t gid_not_found = static_cast<gid_t>(-1);
1538 static uid_t uid_by_name(const char* name) {
1546 if (getpwnam_r(name, &pwd, buf, sizeof(buf), &pp) == 0 && pp != NULL) {
1550 return uid_not_found;
1554 static char* name_by_uid(uid_t uid) {
1563 if ((rc = getpwuid_r(uid, &pwd, buf, sizeof(buf), &pp)) == 0 && pp != NULL) {
1564 return strdup(pp->pw_name);
1575 static gid_t gid_by_name(const char* name) {
1583 if (getgrnam_r(name, &pwd, buf, sizeof(buf), &pp) == 0 && pp != NULL) {
1587 return gid_not_found;
1591 #if 0 // For future use.
1592 static const char* name_by_gid(gid_t gid) {
1601 if ((rc = getgrgid_r(gid, &pwd, buf, sizeof(buf), &pp)) == 0 && pp != NULL) {
1602 return strdup(pp->gr_name);
1614 static uid_t uid_by_name(Handle<Value> value) {
1615 if (value->IsUint32()) {
1616 return static_cast<uid_t>(value->Uint32Value());
1618 String::Utf8Value name(value);
1619 return uid_by_name(*name);
1624 static gid_t gid_by_name(Handle<Value> value) {
1625 if (value->IsUint32()) {
1626 return static_cast<gid_t>(value->Uint32Value());
1628 String::Utf8Value name(value);
1629 return gid_by_name(*name);
1634 static void GetUid(const FunctionCallbackInfo<Value>& args) {
1635 // uid_t is an uint32_t on all supported platforms.
1636 args.GetReturnValue().Set(static_cast<uint32_t>(getuid()));
1640 static void GetGid(const FunctionCallbackInfo<Value>& args) {
1641 // gid_t is an uint32_t on all supported platforms.
1642 args.GetReturnValue().Set(static_cast<uint32_t>(getgid()));
1646 static void SetGid(const FunctionCallbackInfo<Value>& args) {
1647 HandleScope scope(node_isolate);
1649 if (!args[0]->IsUint32() && !args[0]->IsString()) {
1650 return ThrowTypeError("setgid argument must be a number or a string");
1653 gid_t gid = gid_by_name(args[0]);
1655 if (gid == gid_not_found) {
1656 return ThrowError("setgid group id does not exist");
1660 return ThrowErrnoException(errno, "setgid");
1665 static void SetUid(const FunctionCallbackInfo<Value>& args) {
1666 HandleScope scope(node_isolate);
1668 if (!args[0]->IsUint32() && !args[0]->IsString()) {
1669 return ThrowTypeError("setuid argument must be a number or a string");
1672 uid_t uid = uid_by_name(args[0]);
1674 if (uid == uid_not_found) {
1675 return ThrowError("setuid user id does not exist");
1679 return ThrowErrnoException(errno, "setuid");
1684 static void GetGroups(const FunctionCallbackInfo<Value>& args) {
1685 HandleScope scope(node_isolate);
1687 int ngroups = getgroups(0, NULL);
1689 if (ngroups == -1) {
1690 return ThrowErrnoException(errno, "getgroups");
1693 gid_t* groups = new gid_t[ngroups];
1695 ngroups = getgroups(ngroups, groups);
1697 if (ngroups == -1) {
1699 return ThrowErrnoException(errno, "getgroups");
1702 Local<Array> groups_list = Array::New(ngroups);
1703 bool seen_egid = false;
1704 gid_t egid = getegid();
1706 for (int i = 0; i < ngroups; i++) {
1707 groups_list->Set(i, Integer::New(groups[i], node_isolate));
1708 if (groups[i] == egid)
1714 if (seen_egid == false) {
1715 groups_list->Set(ngroups, Integer::New(egid, node_isolate));
1718 args.GetReturnValue().Set(groups_list);
1722 static void SetGroups(const FunctionCallbackInfo<Value>& args) {
1723 HandleScope scope(node_isolate);
1725 if (!args[0]->IsArray()) {
1726 return ThrowTypeError("argument 1 must be an array");
1729 Local<Array> groups_list = args[0].As<Array>();
1730 size_t size = groups_list->Length();
1731 gid_t* groups = new gid_t[size];
1733 for (size_t i = 0; i < size; i++) {
1734 gid_t gid = gid_by_name(groups_list->Get(i));
1736 if (gid == gid_not_found) {
1738 return ThrowError("group name not found");
1744 int rc = setgroups(size, groups);
1748 return ThrowErrnoException(errno, "setgroups");
1753 static void InitGroups(const FunctionCallbackInfo<Value>& args) {
1754 HandleScope scope(node_isolate);
1756 if (!args[0]->IsUint32() && !args[0]->IsString()) {
1757 return ThrowTypeError("argument 1 must be a number or a string");
1760 if (!args[1]->IsUint32() && !args[1]->IsString()) {
1761 return ThrowTypeError("argument 2 must be a number or a string");
1764 String::Utf8Value arg0(args[0]);
1769 if (args[0]->IsUint32()) {
1770 user = name_by_uid(args[0]->Uint32Value());
1778 return ThrowError("initgroups user not found");
1781 extra_group = gid_by_name(args[1]);
1783 if (extra_group == gid_not_found) {
1786 return ThrowError("initgroups extra group not found");
1789 int rc = initgroups(user, extra_group);
1796 return ThrowErrnoException(errno, "initgroups");
1800 #endif // __POSIX__ && !defined(__ANDROID__)
1803 void Exit(const FunctionCallbackInfo<Value>& args) {
1804 HandleScope scope(node_isolate);
1805 exit(args[0]->IntegerValue());
1809 static void Uptime(const FunctionCallbackInfo<Value>& args) {
1810 HandleScope scope(node_isolate);
1812 if (uv_uptime(&uptime))
1814 args.GetReturnValue().Set(uptime - prog_start_time);
1818 void MemoryUsage(const FunctionCallbackInfo<Value>& args) {
1819 HandleScope handle_scope(args.GetIsolate());
1820 Environment* env = Environment::GetCurrent(args.GetIsolate());
1823 int err = uv_resident_set_memory(&rss);
1825 return ThrowUVException(err, "uv_resident_set_memory");
1829 HeapStatistics v8_heap_stats;
1830 node_isolate->GetHeapStatistics(&v8_heap_stats);
1832 Local<Integer> heap_total =
1833 Integer::NewFromUnsigned(v8_heap_stats.total_heap_size(), node_isolate);
1834 Local<Integer> heap_used =
1835 Integer::NewFromUnsigned(v8_heap_stats.used_heap_size(), node_isolate);
1837 Local<Object> info = Object::New();
1838 info->Set(env->rss_string(), Number::New(node_isolate, rss));
1839 info->Set(env->heap_total_string(), heap_total);
1840 info->Set(env->heap_used_string(), heap_used);
1842 args.GetReturnValue().Set(info);
1846 void Kill(const FunctionCallbackInfo<Value>& args) {
1847 HandleScope scope(node_isolate);
1849 if (args.Length() != 2) {
1850 return ThrowError("Bad argument.");
1853 int pid = args[0]->IntegerValue();
1854 int sig = args[1]->Int32Value();
1855 int err = uv_kill(pid, sig);
1856 args.GetReturnValue().Set(err);
1859 // used in Hrtime() below
1860 #define NANOS_PER_SEC 1000000000
1862 // Hrtime exposes libuv's uv_hrtime() high-resolution timer.
1863 // The value returned by uv_hrtime() is a 64-bit int representing nanoseconds,
1864 // so this function instead returns an Array with 2 entries representing seconds
1865 // and nanoseconds, to avoid any integer overflow possibility.
1866 // Pass in an Array from a previous hrtime() call to instead get a time diff.
1867 void Hrtime(const FunctionCallbackInfo<Value>& args) {
1868 HandleScope scope(node_isolate);
1870 uint64_t t = uv_hrtime();
1872 if (args.Length() > 0) {
1873 // return a time diff tuple
1874 if (!args[0]->IsArray()) {
1875 return ThrowTypeError("process.hrtime() only accepts an Array tuple.");
1877 Local<Array> inArray = Local<Array>::Cast(args[0]);
1878 uint64_t seconds = inArray->Get(0)->Uint32Value();
1879 uint64_t nanos = inArray->Get(1)->Uint32Value();
1880 t -= (seconds * NANOS_PER_SEC) + nanos;
1883 Local<Array> tuple = Array::New(2);
1884 tuple->Set(0, Integer::NewFromUnsigned(t / NANOS_PER_SEC, node_isolate));
1885 tuple->Set(1, Integer::NewFromUnsigned(t % NANOS_PER_SEC, node_isolate));
1886 args.GetReturnValue().Set(tuple);
1890 typedef void (UV_DYNAMIC* extInit)(Handle<Object> exports);
1892 // DLOpen is process.dlopen(module, filename).
1893 // Used to load 'module.node' dynamically shared objects.
1895 // FIXME(bnoordhuis) Not multi-context ready. TBD how to resolve the conflict
1896 // when two contexts try to load the same shared object. Maybe have a shadow
1897 // cache that's a plain C list or hash table that's shared across contexts?
1898 void DLOpen(const FunctionCallbackInfo<Value>& args) {
1899 HandleScope handle_scope(args.GetIsolate());
1900 Environment* env = Environment::GetCurrent(args.GetIsolate());
1901 char symbol[1024], *base, *pos;
1905 if (args.Length() < 2) {
1906 return ThrowError("process.dlopen takes exactly 2 arguments.");
1909 Local<Object> module = args[0]->ToObject(); // Cast
1910 String::Utf8Value filename(args[1]); // Cast
1912 Local<String> exports_string = env->exports_string();
1913 Local<Object> exports = module->Get(exports_string)->ToObject();
1915 if (uv_dlopen(*filename, &lib)) {
1916 Local<String> errmsg = OneByteString(env->isolate(), uv_dlerror(&lib));
1918 // Windows needs to add the filename into the error message
1919 errmsg = String::Concat(errmsg, args[1]->ToString());
1921 ThrowException(Exception::Error(errmsg));
1925 String::Utf8Value path(args[1]);
1928 /* Find the shared library filename within the full path. */
1930 pos = strrchr(base, '/');
1936 pos = strpbrk(base, "\\/:");
1944 /* Strip the .node extension. */
1945 pos = strrchr(base, '.');
1950 /* Add the `_module` suffix to the extension name. */
1951 r = snprintf(symbol, sizeof symbol, "%s_module", base);
1952 if (r <= 0 || static_cast<size_t>(r) >= sizeof symbol) {
1953 return ThrowError("Out of memory.");
1956 /* Replace dashes with underscores. When loading foo-bar.node,
1957 * look for foo_bar_module, not foo-bar_module.
1959 for (pos = symbol; *pos != '\0'; ++pos) {
1964 node_module_struct *mod;
1965 if (uv_dlsym(&lib, symbol, reinterpret_cast<void**>(&mod))) {
1967 snprintf(errmsg, sizeof(errmsg), "Symbol %s not found.", symbol);
1968 return ThrowError(errmsg);
1971 if (mod->version != NODE_MODULE_VERSION) {
1975 "Module version mismatch. Expected %d, got %d.",
1976 NODE_MODULE_VERSION, mod->version);
1977 return ThrowError(errmsg);
1980 // Execute the C++ module
1981 if (mod->register_context_func != NULL) {
1982 mod->register_context_func(exports, module, env->context());
1983 } else if (mod->register_func != NULL) {
1984 mod->register_func(exports, module);
1986 return ThrowError("Module has no declared entry point.");
1989 // Tell coverity that 'handle' should not be freed when we return.
1990 // coverity[leaked_storage]
1994 static void OnFatalError(const char* location, const char* message) {
1996 fprintf(stderr, "FATAL ERROR: %s %s\n", location, message);
1998 fprintf(stderr, "FATAL ERROR: %s\n", message);
2008 NO_RETURN void FatalError(const char* location, const char* message) {
2009 OnFatalError(location, message);
2010 // to supress compiler warning
2015 void FatalException(Handle<Value> error, Handle<Message> message) {
2016 HandleScope scope(node_isolate);
2018 Environment* env = Environment::GetCurrent(node_isolate);
2019 Local<Object> process_object = env->process_object();
2020 Local<String> fatal_exception_string = env->fatal_exception_string();
2021 Local<Function> fatal_exception_function =
2022 process_object->Get(fatal_exception_string).As<Function>();
2024 if (!fatal_exception_function->IsFunction()) {
2025 // failed before the process._fatalException function was added!
2026 // this is probably pretty bad. Nothing to do but report and exit.
2027 ReportException(error, message);
2031 TryCatch fatal_try_catch;
2033 // Do not call FatalException when _fatalException handler throws
2034 fatal_try_catch.SetVerbose(false);
2036 // this will return true if the JS layer handled it, false otherwise
2037 Local<Value> caught =
2038 fatal_exception_function->Call(process_object, 1, &error);
2040 if (fatal_try_catch.HasCaught()) {
2041 // the fatal exception function threw, so we must exit
2042 ReportException(fatal_try_catch);
2046 if (false == caught->BooleanValue()) {
2047 ReportException(error, message);
2053 void FatalException(const TryCatch& try_catch) {
2054 HandleScope scope(node_isolate);
2055 // TODO(bajtos) do not call FatalException if try_catch is verbose
2056 // (requires V8 API to expose getter for try_catch.is_verbose_)
2057 FatalException(try_catch.Exception(), try_catch.Message());
2061 void OnMessage(Handle<Message> message, Handle<Value> error) {
2062 // The current version of V8 sends messages for errors only
2063 // (thus `error` is always set).
2064 FatalException(error, message);
2068 static void Binding(const FunctionCallbackInfo<Value>& args) {
2069 HandleScope handle_scope(args.GetIsolate());
2070 Environment* env = Environment::GetCurrent(args.GetIsolate());
2072 Local<String> module = args[0]->ToString();
2073 String::Utf8Value module_v(module);
2075 Local<Object> cache = env->binding_cache_object();
2076 Local<Object> exports;
2078 if (cache->Has(module)) {
2079 exports = cache->Get(module)->ToObject();
2080 args.GetReturnValue().Set(exports);
2084 // Append a string to process.moduleLoadList
2086 snprintf(buf, sizeof(buf), "Binding %s", *module_v);
2088 Local<Array> modules = env->module_load_list_array();
2089 uint32_t l = modules->Length();
2090 modules->Set(l, OneByteString(node_isolate, buf));
2092 node_module_struct* mod = get_builtin_module(*module_v);
2094 exports = Object::New();
2095 // Internal bindings don't have a "module" object, only exports.
2096 assert(mod->register_func == NULL);
2097 assert(mod->register_context_func != NULL);
2098 Local<Value> unused = Undefined(env->isolate());
2099 mod->register_context_func(exports, unused, env->context());
2100 cache->Set(module, exports);
2101 } else if (!strcmp(*module_v, "constants")) {
2102 exports = Object::New();
2103 DefineConstants(exports);
2104 cache->Set(module, exports);
2105 } else if (!strcmp(*module_v, "natives")) {
2106 exports = Object::New();
2107 DefineJavaScript(exports);
2108 cache->Set(module, exports);
2110 return ThrowError("No such module");
2113 args.GetReturnValue().Set(exports);
2117 static void ProcessTitleGetter(Local<String> property,
2118 const PropertyCallbackInfo<Value>& info) {
2119 HandleScope scope(node_isolate);
2121 uv_get_process_title(buffer, sizeof(buffer));
2122 info.GetReturnValue().Set(String::NewFromUtf8(node_isolate, buffer));
2126 static void ProcessTitleSetter(Local<String> property,
2128 const PropertyCallbackInfo<void>& info) {
2129 HandleScope scope(node_isolate);
2130 String::Utf8Value title(value);
2131 // TODO(piscisaureus): protect with a lock
2132 uv_set_process_title(*title);
2136 static void EnvGetter(Local<String> property,
2137 const PropertyCallbackInfo<Value>& info) {
2138 HandleScope scope(node_isolate);
2140 String::Utf8Value key(property);
2141 const char* val = getenv(*key);
2143 return info.GetReturnValue().Set(String::NewFromUtf8(node_isolate, val));
2146 String::Value key(property);
2147 WCHAR buffer[32767]; // The maximum size allowed for environment variables.
2148 DWORD result = GetEnvironmentVariableW(reinterpret_cast<WCHAR*>(*key),
2150 ARRAY_SIZE(buffer));
2151 // If result >= sizeof buffer the buffer was too small. That should never
2152 // happen. If result == 0 and result != ERROR_SUCCESS the variable was not
2154 if ((result > 0 || GetLastError() == ERROR_SUCCESS) &&
2155 result < ARRAY_SIZE(buffer)) {
2156 const uint16_t* two_byte_buffer = reinterpret_cast<const uint16_t*>(buffer);
2157 Local<String> rc = String::NewFromTwoByte(node_isolate, two_byte_buffer);
2158 return info.GetReturnValue().Set(rc);
2161 // Not found. Fetch from prototype.
2162 info.GetReturnValue().Set(
2163 info.Data().As<Object>()->Get(property));
2167 static void EnvSetter(Local<String> property,
2169 const PropertyCallbackInfo<Value>& info) {
2170 HandleScope scope(node_isolate);
2172 String::Utf8Value key(property);
2173 String::Utf8Value val(value);
2174 setenv(*key, *val, 1);
2176 String::Value key(property);
2177 String::Value val(value);
2178 WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key);
2179 // Environment variables that start with '=' are read-only.
2180 if (key_ptr[0] != L'=') {
2181 SetEnvironmentVariableW(key_ptr, reinterpret_cast<WCHAR*>(*val));
2184 // Whether it worked or not, always return rval.
2185 info.GetReturnValue().Set(value);
2189 static void EnvQuery(Local<String> property,
2190 const PropertyCallbackInfo<Integer>& info) {
2191 HandleScope scope(node_isolate);
2192 int32_t rc = -1; // Not found unless proven otherwise.
2194 String::Utf8Value key(property);
2198 String::Value key(property);
2199 WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key);
2200 if (GetEnvironmentVariableW(key_ptr, NULL, 0) > 0 ||
2201 GetLastError() == ERROR_SUCCESS) {
2203 if (key_ptr[0] == L'=') {
2204 // Environment variables that start with '=' are hidden and read-only.
2205 rc = static_cast<int32_t>(v8::ReadOnly) |
2206 static_cast<int32_t>(v8::DontDelete) |
2207 static_cast<int32_t>(v8::DontEnum);
2212 info.GetReturnValue().Set(rc);
2216 static void EnvDeleter(Local<String> property,
2217 const PropertyCallbackInfo<Boolean>& info) {
2218 HandleScope scope(node_isolate);
2221 String::Utf8Value key(property);
2222 rc = getenv(*key) != NULL;
2226 String::Value key(property);
2227 WCHAR* key_ptr = reinterpret_cast<WCHAR*>(*key);
2228 if (key_ptr[0] == L'=' || !SetEnvironmentVariableW(key_ptr, NULL)) {
2229 // Deletion failed. Return true if the key wasn't there in the first place,
2230 // false if it is still there.
2231 rc = GetEnvironmentVariableW(key_ptr, NULL, NULL) == 0 &&
2232 GetLastError() != ERROR_SUCCESS;
2235 info.GetReturnValue().Set(rc);
2239 static void EnvEnumerator(const PropertyCallbackInfo<Array>& info) {
2240 HandleScope scope(node_isolate);
2243 while (environ[size])
2246 Local<Array> env = Array::New(size);
2248 for (int i = 0; i < size; ++i) {
2249 const char* var = environ[i];
2250 const char* s = strchr(var, '=');
2251 const int length = s ? s - var : strlen(var);
2252 Local<String> name = String::NewFromUtf8(node_isolate,
2254 String::kNormalString,
2259 WCHAR* environment = GetEnvironmentStringsW();
2260 if (environment == NULL)
2261 return; // This should not happen.
2262 Local<Array> env = Array::New();
2263 WCHAR* p = environment;
2265 while (*p != NULL) {
2268 // If the key starts with '=' it is a hidden environment variable.
2272 s = wcschr(p, L'=');
2277 const uint16_t* two_byte_buffer = reinterpret_cast<const uint16_t*>(p);
2278 const size_t two_byte_buffer_len = s - p;
2279 Local<String> value = String::NewFromTwoByte(node_isolate,
2281 String::kNormalString,
2282 two_byte_buffer_len);
2283 env->Set(i++, value);
2284 p = s + wcslen(s) + 1;
2286 FreeEnvironmentStringsW(environment);
2289 info.GetReturnValue().Set(env);
2293 static Handle<Object> GetFeatures() {
2294 HandleScope scope(node_isolate);
2296 Local<Object> obj = Object::New();
2297 #if defined(DEBUG) && DEBUG
2298 Local<Value> debug = True(node_isolate);
2300 Local<Value> debug = False(node_isolate);
2301 #endif // defined(DEBUG) && DEBUG
2303 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "debug"), debug);
2305 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "uv"), True(node_isolate));
2306 // TODO(bnoordhuis) ping libuv
2307 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "ipv6"), True(node_isolate));
2309 #ifdef OPENSSL_NPN_NEGOTIATED
2310 Local<Boolean> tls_npn = True(node_isolate);
2312 Local<Boolean> tls_npn = False(node_isolate);
2314 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "tls_npn"), tls_npn);
2316 #ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2317 Local<Boolean> tls_sni = True(node_isolate);
2319 Local<Boolean> tls_sni = False(node_isolate);
2321 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "tls_sni"), tls_sni);
2323 obj->Set(FIXED_ONE_BYTE_STRING(node_isolate, "tls"),
2324 Boolean::New(get_builtin_module("crypto") != NULL));
2326 return scope.Close(obj);
2330 static void DebugPortGetter(Local<String> property,
2331 const PropertyCallbackInfo<Value>& info) {
2332 HandleScope scope(node_isolate);
2333 info.GetReturnValue().Set(debug_port);
2337 static void DebugPortSetter(Local<String> property,
2339 const PropertyCallbackInfo<void>& info) {
2340 HandleScope scope(node_isolate);
2341 debug_port = value->NumberValue();
2345 static void DebugProcess(const FunctionCallbackInfo<Value>& args);
2346 static void DebugPause(const FunctionCallbackInfo<Value>& args);
2347 static void DebugEnd(const FunctionCallbackInfo<Value>& args);
2350 void NeedImmediateCallbackGetter(Local<String> property,
2351 const PropertyCallbackInfo<Value>& info) {
2352 HandleScope handle_scope(info.GetIsolate());
2353 Environment* env = Environment::GetCurrent(info.GetIsolate());
2354 const uv_check_t* immediate_check_handle = env->immediate_check_handle();
2355 bool active = uv_is_active(
2356 reinterpret_cast<const uv_handle_t*>(immediate_check_handle));
2357 info.GetReturnValue().Set(active);
2361 static void NeedImmediateCallbackSetter(
2362 Local<String> property,
2364 const PropertyCallbackInfo<void>& info) {
2365 HandleScope handle_scope(info.GetIsolate());
2366 Environment* env = Environment::GetCurrent(info.GetIsolate());
2368 uv_check_t* immediate_check_handle = env->immediate_check_handle();
2369 bool active = uv_is_active(
2370 reinterpret_cast<const uv_handle_t*>(immediate_check_handle));
2372 if (active == value->BooleanValue())
2375 uv_idle_t* immediate_idle_handle = env->immediate_idle_handle();
2378 uv_check_stop(immediate_check_handle);
2379 uv_idle_stop(immediate_idle_handle);
2381 uv_check_start(immediate_check_handle, CheckImmediate);
2382 // Idle handle is needed only to stop the event loop from blocking in poll.
2383 uv_idle_start(immediate_idle_handle, IdleImmediateDummy);
2388 void SetIdle(uv_prepare_t* handle, int) {
2389 Environment* env = Environment::from_idle_prepare_handle(handle);
2390 env->isolate()->GetCpuProfiler()->SetIdle(true);
2394 void ClearIdle(uv_check_t* handle, int) {
2395 Environment* env = Environment::from_idle_check_handle(handle);
2396 env->isolate()->GetCpuProfiler()->SetIdle(false);
2400 void StartProfilerIdleNotifier(Environment* env) {
2401 uv_prepare_start(env->idle_prepare_handle(), SetIdle);
2402 uv_check_start(env->idle_check_handle(), ClearIdle);
2406 void StopProfilerIdleNotifier(Environment* env) {
2407 uv_prepare_stop(env->idle_prepare_handle());
2408 uv_check_stop(env->idle_check_handle());
2412 void StartProfilerIdleNotifier(const FunctionCallbackInfo<Value>& args) {
2413 HandleScope handle_scope(args.GetIsolate());
2414 Environment* env = Environment::GetCurrent(args.GetIsolate());
2415 StartProfilerIdleNotifier(env);
2419 void StopProfilerIdleNotifier(const FunctionCallbackInfo<Value>& args) {
2420 HandleScope handle_scope(args.GetIsolate());
2421 Environment* env = Environment::GetCurrent(args.GetIsolate());
2422 StopProfilerIdleNotifier(env);
2426 #define READONLY_PROPERTY(obj, str, var) \
2428 obj->Set(OneByteString(node_isolate, str), var, v8::ReadOnly); \
2432 void SetupProcessObject(Environment* env,
2434 const char* const* argv,
2436 const char* const* exec_argv) {
2437 HandleScope scope(node_isolate);
2439 Local<Object> process = env->process_object();
2441 process->SetAccessor(FIXED_ONE_BYTE_STRING(node_isolate, "title"),
2443 ProcessTitleSetter);
2446 READONLY_PROPERTY(process,
2448 FIXED_ONE_BYTE_STRING(node_isolate, NODE_VERSION));
2450 // process.moduleLoadList
2451 READONLY_PROPERTY(process,
2453 env->module_load_list_array());
2456 Local<Object> versions = Object::New();
2457 READONLY_PROPERTY(process, "versions", versions);
2459 const char http_parser_version[] = NODE_STRINGIFY(HTTP_PARSER_VERSION_MAJOR)
2461 NODE_STRINGIFY(HTTP_PARSER_VERSION_MINOR);
2462 READONLY_PROPERTY(versions,
2464 FIXED_ONE_BYTE_STRING(node_isolate, http_parser_version));
2466 // +1 to get rid of the leading 'v'
2467 READONLY_PROPERTY(versions,
2469 OneByteString(node_isolate, NODE_VERSION + 1));
2470 READONLY_PROPERTY(versions,
2472 OneByteString(node_isolate, V8::GetVersion()));
2473 READONLY_PROPERTY(versions,
2475 OneByteString(node_isolate, uv_version_string()));
2476 READONLY_PROPERTY(versions,
2478 FIXED_ONE_BYTE_STRING(node_isolate, ZLIB_VERSION));
2480 const char node_modules_version[] = NODE_STRINGIFY(NODE_MODULE_VERSION);
2481 READONLY_PROPERTY(versions,
2483 FIXED_ONE_BYTE_STRING(node_isolate, node_modules_version));
2486 // Stupid code to slice out the version string.
2487 { // NOLINT(whitespace/braces)
2490 for (i = j = 0, k = sizeof(OPENSSL_VERSION_TEXT) - 1; i < k; ++i) {
2491 c = OPENSSL_VERSION_TEXT[i];
2492 if ('0' <= c && c <= '9') {
2493 for (j = i + 1; j < k; ++j) {
2494 c = OPENSSL_VERSION_TEXT[j];
2504 OneByteString(node_isolate, &OPENSSL_VERSION_TEXT[i], j - i));
2509 READONLY_PROPERTY(process, "arch", OneByteString(node_isolate, ARCH));
2512 READONLY_PROPERTY(process,
2514 OneByteString(node_isolate, PLATFORM));
2517 Local<Array> arguments = Array::New(argc);
2518 for (int i = 0; i < argc; ++i) {
2519 arguments->Set(i, String::NewFromUtf8(node_isolate, argv[i]));
2521 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "argv"), arguments);
2524 Local<Array> exec_arguments = Array::New(exec_argc);
2525 for (int i = 0; i < exec_argc; ++i) {
2526 exec_arguments->Set(i, String::NewFromUtf8(node_isolate, exec_argv[i]));
2528 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "execArgv"), exec_arguments);
2530 // create process.env
2531 Local<ObjectTemplate> process_env_template = ObjectTemplate::New();
2532 process_env_template->SetNamedPropertyHandler(EnvGetter,
2538 Local<Object> process_env = process_env_template->NewInstance();
2539 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "env"), process_env);
2541 READONLY_PROPERTY(process, "pid", Integer::New(getpid(), node_isolate));
2542 READONLY_PROPERTY(process, "features", GetFeatures());
2543 process->SetAccessor(
2544 FIXED_ONE_BYTE_STRING(node_isolate, "_needImmediateCallback"),
2545 NeedImmediateCallbackGetter,
2546 NeedImmediateCallbackSetter);
2550 READONLY_PROPERTY(process,
2552 String::NewFromUtf8(node_isolate, eval_string));
2557 READONLY_PROPERTY(process, "_print_eval", True(node_isolate));
2560 // -i, --interactive
2562 READONLY_PROPERTY(process, "_forceRepl", True(node_isolate));
2566 if (no_deprecation) {
2567 READONLY_PROPERTY(process, "noDeprecation", True(node_isolate));
2570 // --throw-deprecation
2571 if (throw_deprecation) {
2572 READONLY_PROPERTY(process, "throwDeprecation", True(node_isolate));
2575 // --trace-deprecation
2576 if (trace_deprecation) {
2577 READONLY_PROPERTY(process, "traceDeprecation", True(node_isolate));
2580 size_t exec_path_len = 2 * PATH_MAX;
2581 char* exec_path = new char[exec_path_len];
2582 Local<String> exec_path_value;
2583 if (uv_exepath(exec_path, &exec_path_len) == 0) {
2584 exec_path_value = String::NewFromUtf8(node_isolate,
2586 String::kNormalString,
2589 exec_path_value = String::NewFromUtf8(node_isolate, argv[0]);
2591 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "execPath"),
2595 process->SetAccessor(FIXED_ONE_BYTE_STRING(node_isolate, "debugPort"),
2599 // define various internal methods
2600 NODE_SET_METHOD(process,
2601 "_startProfilerIdleNotifier",
2602 StartProfilerIdleNotifier);
2603 NODE_SET_METHOD(process,
2604 "_stopProfilerIdleNotifier",
2605 StopProfilerIdleNotifier);
2606 NODE_SET_METHOD(process, "_getActiveRequests", GetActiveRequests);
2607 NODE_SET_METHOD(process, "_getActiveHandles", GetActiveHandles);
2608 NODE_SET_METHOD(process, "reallyExit", Exit);
2609 NODE_SET_METHOD(process, "abort", Abort);
2610 NODE_SET_METHOD(process, "chdir", Chdir);
2611 NODE_SET_METHOD(process, "cwd", Cwd);
2613 NODE_SET_METHOD(process, "umask", Umask);
2615 #if defined(__POSIX__) && !defined(__ANDROID__)
2616 NODE_SET_METHOD(process, "getuid", GetUid);
2617 NODE_SET_METHOD(process, "setuid", SetUid);
2619 NODE_SET_METHOD(process, "setgid", SetGid);
2620 NODE_SET_METHOD(process, "getgid", GetGid);
2622 NODE_SET_METHOD(process, "getgroups", GetGroups);
2623 NODE_SET_METHOD(process, "setgroups", SetGroups);
2624 NODE_SET_METHOD(process, "initgroups", InitGroups);
2625 #endif // __POSIX__ && !defined(__ANDROID__)
2627 NODE_SET_METHOD(process, "_kill", Kill);
2629 NODE_SET_METHOD(process, "_debugProcess", DebugProcess);
2630 NODE_SET_METHOD(process, "_debugPause", DebugPause);
2631 NODE_SET_METHOD(process, "_debugEnd", DebugEnd);
2633 NODE_SET_METHOD(process, "hrtime", Hrtime);
2635 NODE_SET_METHOD(process, "dlopen", DLOpen);
2637 NODE_SET_METHOD(process, "uptime", Uptime);
2638 NODE_SET_METHOD(process, "memoryUsage", MemoryUsage);
2640 NODE_SET_METHOD(process, "binding", Binding);
2642 NODE_SET_METHOD(process, "_setupAsyncListener", SetupAsyncListener);
2643 NODE_SET_METHOD(process, "_setupNextTick", SetupNextTick);
2644 NODE_SET_METHOD(process, "_setupDomainUse", SetupDomainUse);
2646 // values use to cross communicate with processNextTick
2647 Local<Object> tick_info_obj = Object::New();
2648 tick_info_obj->SetIndexedPropertiesToExternalArrayData(
2649 env->tick_info()->fields(),
2650 kExternalUnsignedIntArray,
2651 env->tick_info()->fields_count());
2652 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "_tickInfo"), tick_info_obj);
2654 // pre-set _events object for faster emit checks
2655 process->Set(FIXED_ONE_BYTE_STRING(node_isolate, "_events"), Object::New());
2659 #undef READONLY_PROPERTY
2662 static void AtExit() {
2663 uv_tty_reset_mode();
2667 static void SignalExit(int signal) {
2668 uv_tty_reset_mode();
2669 _exit(128 + signal);
2673 // Most of the time, it's best to use `console.error` to write
2674 // to the process.stderr stream. However, in some cases, such as
2675 // when debugging the stream.Writable class or the process.nextTick
2676 // function, it is useful to bypass JavaScript entirely.
2677 static void RawDebug(const FunctionCallbackInfo<Value>& args) {
2678 HandleScope scope(node_isolate);
2680 assert(args.Length() == 1 && args[0]->IsString() &&
2681 "must be called with a single string");
2683 String::Utf8Value message(args[0]);
2684 fprintf(stderr, "%s\n", *message);
2689 void Load(Environment* env) {
2690 HandleScope handle_scope(node_isolate);
2692 // Compile, execute the src/node.js file. (Which was included as static C
2693 // string in node_natives.h. 'natve_node' is the string containing that
2696 // The node.js file returns a function 'f'
2701 // Disable verbose mode to stop FatalException() handler from trying
2702 // to handle the exception. Errors this early in the start-up phase
2703 // are not safe to ignore.
2704 try_catch.SetVerbose(false);
2706 Local<String> script_name = FIXED_ONE_BYTE_STRING(node_isolate, "node.js");
2707 Local<Value> f_value = ExecuteString(MainSource(), script_name);
2708 if (try_catch.HasCaught()) {
2709 ReportException(try_catch);
2712 assert(f_value->IsFunction());
2713 Local<Function> f = Local<Function>::Cast(f_value);
2715 // Now we call 'f' with the 'process' variable that we've built up with
2716 // all our bindings. Inside node.js we'll take care of assigning things to
2719 // We start the process this way in order to be more modular. Developers
2720 // who do not like how 'src/node.js' setups the module system but do like
2721 // Node's I/O bindings may want to replace 'f' with their own function.
2723 // Add a reference to the global object
2724 Local<Object> global = env->context()->Global();
2726 #if defined HAVE_DTRACE || defined HAVE_ETW
2730 #if defined HAVE_PERFCTR
2731 InitPerfCounters(global);
2734 // Enable handling of uncaught exceptions
2735 // (FatalException(), break on uncaught exception in debugger)
2737 // This is not strictly necessary since it's almost impossible
2738 // to attach the debugger fast enought to break on exception
2739 // thrown during process startup.
2740 try_catch.SetVerbose(true);
2742 NODE_SET_METHOD(env->process_object(), "_rawDebug", RawDebug);
2744 Local<Value> arg = env->process_object();
2745 f->Call(global, 1, &arg);
2748 static void PrintHelp();
2750 static bool ParseDebugOpt(const char* arg) {
2751 const char* port = NULL;
2753 if (!strcmp(arg, "--debug")) {
2754 use_debug_agent = true;
2755 } else if (!strncmp(arg, "--debug=", sizeof("--debug=") - 1)) {
2756 use_debug_agent = true;
2757 port = arg + sizeof("--debug=") - 1;
2758 } else if (!strcmp(arg, "--debug-brk")) {
2759 use_debug_agent = true;
2760 debug_wait_connect = true;
2761 } else if (!strncmp(arg, "--debug-brk=", sizeof("--debug-brk=") - 1)) {
2762 use_debug_agent = true;
2763 debug_wait_connect = true;
2764 port = arg + sizeof("--debug-brk=") - 1;
2765 } else if (!strncmp(arg, "--debug-port=", sizeof("--debug-port=") - 1)) {
2766 port = arg + sizeof("--debug-port=") - 1;
2772 debug_port = atoi(port);
2773 if (debug_port < 1024 || debug_port > 65535) {
2774 fprintf(stderr, "Debug port must be in range 1024 to 65535.\n");
2783 static void PrintHelp() {
2784 printf("Usage: node [options] [ -e script | script.js ] [arguments] \n"
2785 " node debug script.js [arguments] \n"
2788 " -v, --version print node's version\n"
2789 " -e, --eval script evaluate script\n"
2790 " -p, --print evaluate script and print result\n"
2791 " -i, --interactive always enter the REPL even if stdin\n"
2792 " does not appear to be a terminal\n"
2793 " --no-deprecation silence deprecation warnings\n"
2794 " --trace-deprecation show stack traces on deprecations\n"
2795 " --v8-options print v8 command line options\n"
2796 " --max-stack-size=val set max v8 stack size (bytes)\n"
2798 "Environment variables:\n"
2800 "NODE_PATH ';'-separated list of directories\n"
2802 "NODE_PATH ':'-separated list of directories\n"
2804 " prefixed to the module search path.\n"
2805 "NODE_MODULE_CONTEXTS Set to 1 to load modules in their own\n"
2806 " global contexts.\n"
2807 "NODE_DISABLE_COLORS Set to 1 to disable colors in the REPL\n"
2809 "Documentation can be found at http://nodejs.org/\n");
2813 // Parse command line arguments.
2815 // argv is modified in place. exec_argv and v8_argv are out arguments that
2816 // ParseArgs() allocates memory for and stores a pointer to the output
2817 // vector in. The caller should free them with delete[].
2821 // * argv contains the arguments with node and V8 options filtered out.
2822 // * exec_argv contains both node and V8 options and nothing else.
2823 // * v8_argv contains argv[0] plus any V8 options
2824 static void ParseArgs(int* argc,
2827 const char*** exec_argv,
2829 const char*** v8_argv) {
2830 const unsigned int nargs = static_cast<unsigned int>(*argc);
2831 const char** new_exec_argv = new const char*[nargs];
2832 const char** new_v8_argv = new const char*[nargs];
2833 const char** new_argv = new const char*[nargs];
2835 for (unsigned int i = 0; i < nargs; ++i) {
2836 new_exec_argv[i] = NULL;
2837 new_v8_argv[i] = NULL;
2841 // exec_argv starts with the first option, the other two start with argv[0].
2842 unsigned int new_exec_argc = 0;
2843 unsigned int new_v8_argc = 1;
2844 unsigned int new_argc = 1;
2845 new_v8_argv[0] = argv[0];
2846 new_argv[0] = argv[0];
2848 unsigned int index = 1;
2849 while (index < nargs && argv[index][0] == '-') {
2850 const char* const arg = argv[index];
2851 unsigned int args_consumed = 1;
2853 if (ParseDebugOpt(arg)) {
2854 // Done, consumed by ParseDebugOpt().
2855 } else if (strcmp(arg, "--version") == 0 || strcmp(arg, "-v") == 0) {
2856 printf("%s\n", NODE_VERSION);
2858 } else if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
2861 } else if (strcmp(arg, "--eval") == 0 ||
2862 strcmp(arg, "-e") == 0 ||
2863 strcmp(arg, "--print") == 0 ||
2864 strcmp(arg, "-pe") == 0 ||
2865 strcmp(arg, "-p") == 0) {
2866 bool is_eval = strchr(arg, 'e') != NULL;
2867 bool is_print = strchr(arg, 'p') != NULL;
2868 print_eval = print_eval || is_print;
2869 // --eval, -e and -pe always require an argument.
2870 if (is_eval == true) {
2872 eval_string = argv[index + 1];
2873 if (eval_string == NULL) {
2874 fprintf(stderr, "%s: %s requires an argument\n", argv[0], arg);
2877 } else if (argv[index + 1] != NULL && argv[index + 1][0] != '-') {
2879 eval_string = argv[index + 1];
2880 if (strncmp(eval_string, "\\-", 2) == 0) {
2881 // Starts with "\\-": escaped expression, drop the backslash.
2885 } else if (strcmp(arg, "--interactive") == 0 || strcmp(arg, "-i") == 0) {
2887 } else if (strcmp(arg, "--no-deprecation") == 0) {
2888 no_deprecation = true;
2889 } else if (strcmp(arg, "--trace-deprecation") == 0) {
2890 trace_deprecation = true;
2891 } else if (strcmp(arg, "--throw-deprecation") == 0) {
2892 throw_deprecation = true;
2893 } else if (strcmp(arg, "--v8-options") == 0) {
2894 new_v8_argv[new_v8_argc] = "--help";
2897 // V8 option. Pass through as-is.
2898 new_v8_argv[new_v8_argc] = arg;
2902 memcpy(new_exec_argv + new_exec_argc,
2904 args_consumed * sizeof(*argv));
2906 new_exec_argc += args_consumed;
2907 index += args_consumed;
2910 // Copy remaining arguments.
2911 const unsigned int args_left = nargs - index;
2912 memcpy(new_argv + new_argc, argv + index, args_left * sizeof(*argv));
2913 new_argc += args_left;
2915 *exec_argc = new_exec_argc;
2916 *exec_argv = new_exec_argv;
2917 *v8_argc = new_v8_argc;
2918 *v8_argv = new_v8_argv;
2920 // Copy new_argv over argv and update argc.
2921 memcpy(argv, new_argv, new_argc * sizeof(*argv));
2923 *argc = static_cast<int>(new_argc);
2927 // Called from V8 Debug Agent TCP thread.
2928 static void DispatchMessagesDebugAgentCallback() {
2929 uv_async_send(&dispatch_debug_messages_async);
2933 // Called from the main thread.
2934 static void EnableDebug(bool wait_connect) {
2935 assert(debugger_running == false);
2936 Isolate* isolate = node_isolate; // TODO(bnoordhuis) Multi-isolate support.
2937 Isolate::Scope isolate_scope(isolate);
2938 HandleScope handle_scope(isolate);
2939 v8::Debug::SetDebugMessageDispatchHandler(DispatchMessagesDebugAgentCallback,
2941 debugger_running = v8::Debug::EnableAgent("node " NODE_VERSION,
2944 if (debugger_running == false) {
2945 fprintf(stderr, "Starting debugger on port %d failed\n", debug_port);
2949 fprintf(stderr, "Debugger listening on port %d\n", debug_port);
2952 Environment* env = Environment::GetCurrentChecked(isolate);
2954 return; // Still starting up.
2956 Context::Scope context_scope(env->context());
2957 Local<Object> message = Object::New();
2958 message->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "cmd"),
2959 FIXED_ONE_BYTE_STRING(env->isolate(), "NODE_DEBUG_ENABLED"));
2960 Local<Value> argv[] = {
2961 FIXED_ONE_BYTE_STRING(env->isolate(), "internalMessage"),
2964 MakeCallback(env, env->process_object(), "emit", ARRAY_SIZE(argv), argv);
2968 // Called from the main thread.
2969 static void DispatchDebugMessagesAsyncCallback(uv_async_t* handle, int status) {
2970 if (debugger_running == false) {
2971 fprintf(stderr, "Starting debugger agent.\n");
2974 Isolate::Scope isolate_scope(node_isolate);
2975 v8::Debug::ProcessDebugMessages();
2980 static volatile sig_atomic_t caught_early_debug_signal;
2983 static void EarlyDebugSignalHandler(int signo) {
2984 caught_early_debug_signal = 1;
2988 static void InstallEarlyDebugSignalHandler() {
2989 struct sigaction sa;
2990 memset(&sa, 0, sizeof(sa));
2991 sa.sa_handler = EarlyDebugSignalHandler;
2992 sigaction(SIGUSR1, &sa, NULL);
2996 static void EnableDebugSignalHandler(int signo) {
2997 // Call only async signal-safe functions here!
2998 v8::Debug::DebugBreak(*static_cast<Isolate* volatile*>(&node_isolate));
2999 uv_async_send(&dispatch_debug_messages_async);
3003 static void RegisterSignalHandler(int signal, void (*handler)(int signal)) {
3004 struct sigaction sa;
3005 memset(&sa, 0, sizeof(sa));
3006 sa.sa_handler = handler;
3007 sigfillset(&sa.sa_mask);
3008 sigaction(signal, &sa, NULL);
3012 void DebugProcess(const FunctionCallbackInfo<Value>& args) {
3013 HandleScope scope(node_isolate);
3015 if (args.Length() != 1) {
3016 return ThrowError("Invalid number of arguments.");
3022 pid = args[0]->IntegerValue();
3023 r = kill(pid, SIGUSR1);
3025 return ThrowErrnoException(errno, "kill");
3030 static int RegisterDebugSignalHandler() {
3031 // FIXME(bnoordhuis) Should be per-isolate or per-context, not global.
3032 RegisterSignalHandler(SIGUSR1, EnableDebugSignalHandler);
3033 // If we caught a SIGUSR1 during the bootstrap process, re-raise it
3034 // now that the debugger infrastructure is in place.
3035 if (caught_early_debug_signal)
3043 DWORD WINAPI EnableDebugThreadProc(void* arg) {
3044 v8::Debug::DebugBreak(*static_cast<Isolate* volatile*>(&node_isolate));
3045 uv_async_send(&dispatch_debug_messages_async);
3050 static int GetDebugSignalHandlerMappingName(DWORD pid, wchar_t* buf,
3052 return _snwprintf(buf, buf_len, L"node-debug-handler-%u", pid);
3056 static int RegisterDebugSignalHandler() {
3057 wchar_t mapping_name[32];
3058 HANDLE mapping_handle;
3060 LPTHREAD_START_ROUTINE* handler;
3062 pid = GetCurrentProcessId();
3064 if (GetDebugSignalHandlerMappingName(pid,
3066 ARRAY_SIZE(mapping_name)) < 0) {
3070 mapping_handle = CreateFileMappingW(INVALID_HANDLE_VALUE,
3076 if (mapping_handle == NULL) {
3080 handler = reinterpret_cast<LPTHREAD_START_ROUTINE*>(
3081 MapViewOfFile(mapping_handle,
3082 FILE_MAP_ALL_ACCESS,
3086 if (handler == NULL) {
3087 CloseHandle(mapping_handle);
3091 *handler = EnableDebugThreadProc;
3093 UnmapViewOfFile(static_cast<void*>(handler));
3099 static void DebugProcess(const FunctionCallbackInfo<Value>& args) {
3100 HandleScope scope(node_isolate);
3102 HANDLE process = NULL;
3103 HANDLE thread = NULL;
3104 HANDLE mapping = NULL;
3105 wchar_t mapping_name[32];
3106 LPTHREAD_START_ROUTINE* handler = NULL;
3108 if (args.Length() != 1) {
3109 ThrowError("Invalid number of arguments.");
3113 pid = (DWORD) args[0]->IntegerValue();
3115 process = OpenProcess(PROCESS_CREATE_THREAD | PROCESS_QUERY_INFORMATION |
3116 PROCESS_VM_OPERATION | PROCESS_VM_WRITE |
3120 if (process == NULL) {
3121 ThrowException(WinapiErrnoException(GetLastError(), "OpenProcess"));
3125 if (GetDebugSignalHandlerMappingName(pid,
3127 ARRAY_SIZE(mapping_name)) < 0) {
3128 ThrowErrnoException(errno, "sprintf");
3132 mapping = OpenFileMappingW(FILE_MAP_READ, FALSE, mapping_name);
3133 if (mapping == NULL) {
3134 ThrowException(WinapiErrnoException(GetLastError(), "OpenFileMappingW"));
3138 handler = reinterpret_cast<LPTHREAD_START_ROUTINE*>(
3139 MapViewOfFile(mapping,
3144 if (handler == NULL || *handler == NULL) {
3145 ThrowException(WinapiErrnoException(GetLastError(), "MapViewOfFile"));
3149 thread = CreateRemoteThread(process,
3156 if (thread == NULL) {
3157 ThrowException(WinapiErrnoException(GetLastError(), "CreateRemoteThread"));
3161 // Wait for the thread to terminate
3162 if (WaitForSingleObject(thread, INFINITE) != WAIT_OBJECT_0) {
3163 ThrowException(WinapiErrnoException(GetLastError(), "WaitForSingleObject"));
3168 if (process != NULL)
3169 CloseHandle(process);
3171 CloseHandle(thread);
3172 if (handler != NULL)
3173 UnmapViewOfFile(handler);
3174 if (mapping != NULL)
3175 CloseHandle(mapping);
3180 static void DebugPause(const FunctionCallbackInfo<Value>& args) {
3181 v8::Debug::DebugBreak(node_isolate);
3185 static void DebugEnd(const FunctionCallbackInfo<Value>& args) {
3186 if (debugger_running) {
3187 v8::Debug::DisableAgent();
3188 debugger_running = false;
3193 void Init(int* argc,
3196 const char*** exec_argv) {
3197 // Initialize prog_start_time to get relative uptime.
3198 uv_uptime(&prog_start_time);
3200 // Make inherited handles noninheritable.
3201 uv_disable_stdio_inheritance();
3203 // init async debug messages dispatching
3204 // FIXME(bnoordhuis) Should be per-isolate or per-context, not global.
3205 uv_async_init(uv_default_loop(),
3206 &dispatch_debug_messages_async,
3207 DispatchDebugMessagesAsyncCallback);
3208 uv_unref(reinterpret_cast<uv_handle_t*>(&dispatch_debug_messages_async));
3210 // Parse a few arguments which are specific to Node.
3212 const char** v8_argv;
3213 ParseArgs(argc, argv, exec_argc, exec_argv, &v8_argc, &v8_argv);
3215 // TODO(bnoordhuis) Intercept --prof arguments and start the CPU profiler
3216 // manually? That would give us a little more control over its runtime
3217 // behavior but it could also interfere with the user's intentions in ways
3218 // we fail to anticipate. Dillema.
3219 for (int i = 1; i < v8_argc; ++i) {
3220 if (strncmp(v8_argv[i], "--prof", sizeof("--prof") - 1) == 0) {
3221 v8_is_profiling = true;
3226 // The const_cast doesn't violate conceptual const-ness. V8 doesn't modify
3227 // the argv array or the elements it points to.
3228 V8::SetFlagsFromCommandLine(&v8_argc, const_cast<char**>(v8_argv), true);
3230 // Anything that's still in v8_argv is not a V8 or a node option.
3231 for (int i = 1; i < v8_argc; i++) {
3232 fprintf(stderr, "%s: bad option: %s\n", argv[0], v8_argv[i]);
3241 if (debug_wait_connect) {
3242 const char expose_debug_as[] = "--expose_debug_as=v8debug";
3243 V8::SetFlagsFromString(expose_debug_as, sizeof(expose_debug_as) - 1);
3246 V8::SetArrayBufferAllocator(&ArrayBufferAllocator::the_singleton);
3248 // Fetch a reference to the main isolate, so we have a reference to it
3249 // even when we need it to access it from another (debugger) thread.
3250 node_isolate = Isolate::GetCurrent();
3253 // Raise the open file descriptor limit.
3254 { // NOLINT (whitespace/braces)
3256 if (getrlimit(RLIMIT_NOFILE, &lim) == 0 && lim.rlim_cur != lim.rlim_max) {
3257 // Do a binary search for the limit.
3258 rlim_t min = lim.rlim_cur;
3259 rlim_t max = 1 << 20;
3260 // But if there's a defined upper bound, don't search, just set it.
3261 if (lim.rlim_max != RLIM_INFINITY) {
3266 lim.rlim_cur = min + (max - min) / 2;
3267 if (setrlimit(RLIMIT_NOFILE, &lim)) {
3272 } while (min + 1 < max);
3276 RegisterSignalHandler(SIGPIPE, SIG_IGN);
3277 RegisterSignalHandler(SIGINT, SignalExit);
3278 RegisterSignalHandler(SIGTERM, SignalExit);
3281 V8::SetFatalErrorHandler(node::OnFatalError);
3282 V8::AddMessageListener(OnMessage);
3284 // If the --debug flag was specified then initialize the debug thread.
3285 if (use_debug_agent) {
3286 EnableDebug(debug_wait_connect);
3288 RegisterDebugSignalHandler();
3293 struct AtExitCallback {
3294 AtExitCallback* next_;
3295 void (*cb_)(void* arg);
3299 static AtExitCallback* at_exit_functions_;
3302 // TODO(bnoordhuis) Turn into per-context event.
3303 void RunAtExit(Environment* env) {
3304 AtExitCallback* p = at_exit_functions_;
3305 at_exit_functions_ = NULL;
3308 AtExitCallback* q = p->next_;
3316 void AtExit(void (*cb)(void* arg), void* arg) {
3317 AtExitCallback* p = new AtExitCallback;
3320 p->next_ = at_exit_functions_;
3321 at_exit_functions_ = p;
3325 void EmitExit(Environment* env) {
3326 // process.emit('exit')
3327 HandleScope handle_scope(env->isolate());
3328 Context::Scope context_scope(env->context());
3329 Local<Object> process_object = env->process_object();
3330 process_object->Set(FIXED_ONE_BYTE_STRING(node_isolate, "_exiting"),
3331 True(node_isolate));
3333 Handle<String> exitCode = FIXED_ONE_BYTE_STRING(node_isolate, "exitCode");
3334 int code = process_object->Get(exitCode)->IntegerValue();
3336 Local<Value> args[] = {
3337 FIXED_ONE_BYTE_STRING(node_isolate, "exit"),
3338 Integer::New(code, node_isolate)
3341 MakeCallback(env, process_object, "emit", ARRAY_SIZE(args), args);
3346 Environment* CreateEnvironment(Isolate* isolate,
3348 const char* const* argv,
3350 const char* const* exec_argv) {
3351 HandleScope handle_scope(isolate);
3353 Local<Context> context = Context::New(isolate);
3354 Context::Scope context_scope(context);
3355 Environment* env = Environment::New(context);
3357 uv_check_init(env->event_loop(), env->immediate_check_handle());
3359 reinterpret_cast<uv_handle_t*>(env->immediate_check_handle()));
3360 uv_idle_init(env->event_loop(), env->immediate_idle_handle());
3362 // Inform V8's CPU profiler when we're idle. The profiler is sampling-based
3363 // but not all samples are created equal; mark the wall clock time spent in
3364 // epoll_wait() and friends so profiling tools can filter it out. The samples
3365 // still end up in v8.log but with state=IDLE rather than state=EXTERNAL.
3366 // TODO(bnoordhuis) Depends on a libuv implementation detail that we should
3367 // probably fortify in the API contract, namely that the last started prepare
3368 // or check watcher runs first. It's not 100% foolproof; if an add-on starts
3369 // a prepare or check watcher after us, any samples attributed to its callback
3370 // will be recorded with state=IDLE.
3371 uv_prepare_init(env->event_loop(), env->idle_prepare_handle());
3372 uv_check_init(env->event_loop(), env->idle_check_handle());
3373 uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_prepare_handle()));
3374 uv_unref(reinterpret_cast<uv_handle_t*>(env->idle_check_handle()));
3376 if (v8_is_profiling) {
3377 StartProfilerIdleNotifier(env);
3380 Local<FunctionTemplate> process_template = FunctionTemplate::New();
3381 process_template->SetClassName(FIXED_ONE_BYTE_STRING(isolate, "process"));
3383 Local<Object> process_object = process_template->GetFunction()->NewInstance();
3384 env->set_process_object(process_object);
3386 SetupProcessObject(env, argc, argv, exec_argc, exec_argv);
3393 int Start(int argc, char** argv) {
3394 #if !defined(_WIN32)
3395 // Try hard not to lose SIGUSR1 signals during the bootstrap process.
3396 InstallEarlyDebugSignalHandler();
3401 // Hack around with the argv pointer. Used for process.title = "blah".
3402 argv = uv_setup_args(argc, argv);
3404 // This needs to run *before* V8::Initialize(). The const_cast is not
3405 // optional, in case you're wondering.
3407 const char** exec_argv;
3408 Init(&argc, const_cast<const char**>(argv), &exec_argc, &exec_argv);
3411 // V8 on Windows doesn't have a good source of entropy. Seed it from
3413 V8::SetEntropySource(crypto::EntropySource);
3418 Locker locker(node_isolate);
3420 CreateEnvironment(node_isolate, argc, argv, exec_argc, exec_argv);
3421 // This Context::Scope is here so EnableDebug() can look up the current
3422 // environment with Environment::GetCurrentChecked().
3423 // TODO(bnoordhuis) Reorder the debugger initialization logic so it can
3425 Context::Scope context_scope(env->context());
3426 uv_run(env->event_loop(), UV_RUN_DEFAULT);
3434 // Clean up. Not strictly necessary.