/src/node.cc - Diff - CSE2410 Fall 2014 Bounce - CS Projects

Revision 63a9cd38 src/node.cc

     #include "node.h"
     #include "node_tcp.h"
     //#include "net.h"
     #include "file.h"
     #include "process.h"
     #include "node_http.h"
     #include "node_timer.h"
     #include "natives.h"
     #include <stdio.h>
     #include <assert.h>
-...
     #include <map>
     using namespace v8;
     using namespace node;
     using namespace std;
     static int exit_code = 0;
     // Reads a file into a v8 string.
     static Handle<String>
     ReadFile (const string& name)
     // Extracts a C string from a V8 Utf8Value.
     const char*
     ToCString(const v8::String::Utf8Value& value)
+    {
       return *value ? *value : "<string conversion failed>";
+    }
       FILE* file = fopen(name.c_str(), "rb");
       if (file == NULL) return Handle<String>();
     void
     ReportException(v8::TryCatch* try_catch)
+    {
       v8::HandleScope handle_scope;
       v8::String::Utf8Value exception(try_catch->Exception());
       const char* exception_string = ToCString(exception);
       v8::Handle<v8::Message> message = try_catch->Message();
       if (message.IsEmpty()) {
         // V8 didn't provide any extra information about this error; just
         // print the exception.
         printf("%s\n", exception_string);
       } else {
         message->PrintCurrentStackTrace(stdout);
         // Print (filename):(line number): (message).
         v8::String::Utf8Value filename(message->GetScriptResourceName());
         const char* filename_string = ToCString(filename);
         int linenum = message->GetLineNumber();
         printf("%s:%i: %s\n", filename_string, linenum, exception_string);
         // Print line of source code.
         v8::String::Utf8Value sourceline(message->GetSourceLine());
         const char* sourceline_string = ToCString(sourceline);
         printf("%s\n", sourceline_string);
         // Print wavy underline (GetUnderline is deprecated).
         int start = message->GetStartColumn();
         for (int i = 0; i < start; i++) {
           printf(" ");
+        }
         int end = message->GetEndColumn();
         for (int i = start; i < end; i++) {
           printf("^");
+        }
         printf("\n");
+      }
+    }
     // Executes a string within the current v8 context.
     Handle<Value>
     ExecuteString(v8::Handle<v8::String> source,
                   v8::Handle<v8::Value> filename)
+    {
       HandleScope scope;
       Handle<Script> script = Script::Compile(source, filename);
       if (script.IsEmpty()) {
         return ThrowException(String::New("Error compiling string"));
+      }
       Handle<Value> result = script->Run();
       if (result.IsEmpty()) {
         return ThrowException(String::New("Error running string"));
+      }
       return scope.Close(result);
+    }
     JS_METHOD(print)
+    {
       if (args.Length() < 1) return v8::Undefined();
       HandleScope scope;
       Handle<Value> arg = args[0];
       String::Utf8Value value(arg);
       printf("%s\n", *value);
       fflush(stdout);
       return Undefined();
+    }
     JS_METHOD(cat)
+    {
       if (args.Length() < 1) return v8::Undefined();
       HandleScope scope;
       String::Utf8Value filename(args[0]);
       Local<String> error_msg = String::New("File I/O error");
       FILE* file = fopen(*filename, "rb");
       if (file == NULL) {
         // Raise error
         perror("fopen()");
         return ThrowException(error_msg);
+      }
       fseek(file, 0, SEEK_END);
       int r = fseek(file, 0, SEEK_END);
       if (r < 0) {
         perror("fseek()");
         return ThrowException(error_msg);
+      }
       int size = ftell(file);
       if (size < 0) {
         perror("ftell()");
         return ThrowException(error_msg);
+      }
       rewind(file);
       char chars[size+1];
-...
         int read = fread(&chars[i], 1, size - i, file);
         if(read <= 0) {
           perror("read()");
           return ThrowException(error_msg);
+        }
         i += read;
+      }
-...
       fclose(file);
       HandleScope scope;
       Local<String> result = String::New(expanded_base, size);
       Local<String> contents = String::New(expanded_base, size);
       return scope.Close(result);
       return scope.Close(contents);
+    }
     static Handle<Value>
     Log (const Arguments& args)
     JS_METHOD(exec)
+    {
       if (args.Length() < 1) return v8::Undefined();
       if (args.Length() < 2)
         return Undefined();
       HandleScope scope;
       Handle<Value> arg = args[0];
       String::Utf8Value value(arg);
       printf("%s\n", *value);
       fflush(stdout);
       Local<String> source = args[0]->ToString();
       Local<String> filename = args[1]->ToString();
       return Undefined();
       Handle<Value> result = ExecuteString(source, filename);
       return scope.Close(result);
+    }
     static Handle<Value>
     BlockingFileRead (const Arguments& args)
+    {
       if (args.Length() < 1) return v8::Undefined();
       HandleScope scope;
       String::Utf8Value filename(args[0]);
       Handle<String> output = ReadFile (*filename);
       return scope.Close(output);
+    }
     static void
     OnFatalError (const char* location, const char* message)
+    {
-...
+    }
     // Extracts a C string from a V8 Utf8Value.
     const char* ToCString(const v8::String::Utf8Value& value) {
       return *value ? *value : "<string conversion failed>";
+    }
     void ReportException(v8::TryCatch* try_catch) {
       v8::HandleScope handle_scope;
       v8::String::Utf8Value exception(try_catch->Exception());
       const char* exception_string = ToCString(exception);
       v8::Handle<v8::Message> message = try_catch->Message();
       if (message.IsEmpty()) {
         // V8 didn't provide any extra information about this error; just
         // print the exception.
         printf("%s\n", exception_string);
       } else {
         message->PrintCurrentStackTrace(stdout);
         // Print (filename):(line number): (message).
         v8::String::Utf8Value filename(message->GetScriptResourceName());
         const char* filename_string = ToCString(filename);
         int linenum = message->GetLineNumber();
         printf("%s:%i: %s\n", filename_string, linenum, exception_string);
         // Print line of source code.
         v8::String::Utf8Value sourceline(message->GetSourceLine());
         const char* sourceline_string = ToCString(sourceline);
         printf("%s\n", sourceline_string);
         // Print wavy underline (GetUnderline is deprecated).
         int start = message->GetStartColumn();
         for (int i = 0; i < start; i++) {
           printf(" ");
+        }
         int end = message->GetEndColumn();
         for (int i = start; i < end; i++) {
           printf("^");
+        }
         printf("\n");
+      }
+    }
     void
     node_fatal_exception (TryCatch &try_catch)
+    {
-...
       exit_code = 1;
+    }
     // Executes a string within the current v8 context.
     bool ExecuteString(v8::Handle<v8::String> source,
                        v8::Handle<v8::Value> name,
                        bool print_result,
                        bool report_exceptions) {
       v8::HandleScope handle_scope;
       v8::TryCatch try_catch;
       v8::Handle<v8::Script> script = v8::Script::Compile(source, name);
       if (script.IsEmpty()) {
         // Print errors that happened during compilation.
         if (report_exceptions)
           ReportException(&try_catch);
         return false;
       } else {
         v8::Handle<v8::Value> result = script->Run();
         if (result.IsEmpty()) {
           // Print errors that happened during execution.
           if (report_exceptions)
             ReportException(&try_catch);
           return false;
         } else {
           if (print_result && !result->IsUndefined()) {
             // If all went well and the result wasn't undefined then print
             // the returned value.
             v8::String::Utf8Value str(result);
             const char* cstr = ToCString(str);
             printf("%s\n", cstr);
+          }
           return true;
+        }
+      }
     void node_exit (int code)
+    {
       exit_code = code;
       ev_unloop(node_loop(), EVUNLOOP_ALL);
+    }
     // The callback that is invoked by v8 whenever the JavaScript 'load'
     // function is called.  Loads, compiles and executes its argument
     // JavaScript file.
     v8::Handle<v8::Value> Load(const v8::Arguments& args) {
       for (int i = 0; i < args.Length(); i++) {
         v8::HandleScope handle_scope;
         v8::String::Utf8Value file(args[i]);
         if (*file == NULL) {
           return v8::ThrowException(v8::String::New("Error loading file"));
+        }
         v8::Handle<v8::String> source = ReadFile(*file);
         if (source.IsEmpty()) {
           return v8::ThrowException(v8::String::New("Error loading file"));
+        }
         if (!ExecuteString(source, v8::String::New(*file), false, true)) {
           return v8::ThrowException(v8::String::New("Error executing file"));
+        }
+      }
       return v8::Undefined();
+    }
     static ev_async thread_pool_watcher;
-...
     int
     main (int argc, char *argv[])
+    {
       // start eio thread pool
       ev_async_init(&thread_pool_watcher, thread_pool_cb);
       eio_init(thread_pool_want_poll, NULL);
       V8::SetFlagsFromCommandLine(&argc, argv, true);
       if(argc != 2)  {
       if(argc < 2)  {
         fprintf(stderr, "No script was specified.\n");
         return 1;
+      }
       string filename(argv[1]);
       HandleScope handle_scope;
       Persistent<Context> context = Context::New(NULL, ObjectTemplate::New());
       Context::Scope context_scope(context);
       V8::SetFatalErrorHandler(OnFatalError);
       Local<Object> g = Context::GetCurrent()->Global();
       g->Set ( String::New("log")
              , FunctionTemplate::New(Log)->GetFunction()
              );
       Local<Object> node = Object::New();
       g->Set(String::New("node"), node);
       g->Set ( String::New("load")
              , FunctionTemplate::New(Load)->GetFunction()
              );
       Local<Object> blocking = Object::New();
       node->Set(String::New("blocking"), blocking);
       g->Set ( String::New("blockingFileRead")
              , FunctionTemplate::New(BlockingFileRead)->GetFunction()
              );
       JS_SET_METHOD(blocking, "exec", exec);
       JS_SET_METHOD(blocking, "cat", cat);
       JS_SET_METHOD(blocking, "print", print);
       Local<Array> arguments = Array::New(argc);
       for (int i = 0; i < argc; i++) {
         Local<String> arg = String::New(argv[i]);
         arguments->Set(Integer::New(i), arg);
+      }
       g->Set(String::New("ARGV"), arguments);
       // BUILT-IN MODULES
       Init_timer(g);
       Init_tcp(g);
       //NodeInit_net(g);
       NodeInit_process(g);
       NodeInit_file(g);
       Init_http(g);
       V8::SetFatalErrorHandler(OnFatalError);
       v8::Handle<v8::String> source = ReadFile(filename);
       // start eio thread pool
       ev_async_init(&thread_pool_watcher, thread_pool_cb);
       ev_async_start(EV_DEFAULT_ &thread_pool_watcher);
       eio_init(thread_pool_want_poll, NULL);
       ExecuteString(source, String::New(filename.c_str()), false, true);
       // NATIVE JAVASCRIPT MODULES
       TryCatch try_catch;
       Handle<Value> result = ExecuteString(String::New(native_main),
                                            String::New("main.js"));
       if (try_catch.HasCaught()) {
         ReportException(&try_catch);
         return 1;
+      }
       ev_loop(node_loop(), 0);
-...
       return exit_code;
+    }

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