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node.cc
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node.cc
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#include <oi.h>
#include "node_tcp.h"
#include "node_http.h"
#include <stdio.h>
#include <assert.h>
#include <string>
#include <list>
#include <map>
#include <v8.h>
using namespace v8;
using namespace std;
static struct ev_loop *loop;
static Persistent<Context> context;
static Persistent<Function> process_;
// Reads a file into a v8 string.
static Handle<String> ReadFile
( const string& name
)
{
FILE* file = fopen(name.c_str(), "rb");
if (file == NULL) return Handle<String>();
fseek(file, 0, SEEK_END);
int size = ftell(file);
rewind(file);
char* chars = new char[size + 1];
chars[size] = '\0';
for (int i = 0; i < size;) {
int read = fread(&chars[i], 1, size - i, file);
i += read;
}
fclose(file);
Handle<String> result = String::New(chars, size);
delete[] chars;
return result;
}
static void ParseOptions
( int argc
, char* argv[]
, map<string, string>& options
, string* file
)
{
for (int i = 1; i < argc; i++) {
string arg = argv[i];
int index = arg.find('=', 0);
if (index == string::npos) {
*file = arg;
} else {
string key = arg.substr(0, index);
string value = arg.substr(index+1);
options[key] = value;
}
}
}
static bool compile
( Handle<String> script
)
{
HandleScope handle_scope;
// We're just about to compile the script; set up an error handler to
// catch any exceptions the script might throw.
TryCatch try_catch;
// Compile the script and check for errors.
Handle<Script> compiled_script = Script::Compile(script);
if (compiled_script.IsEmpty()) {
Handle<Message> message = try_catch.Message();
String::Utf8Value error(try_catch.Exception());
printf("error: %s line %d\n", *error, message->GetLineNumber());
return false;
}
// Run the script!
Handle<Value> result = compiled_script->Run();
if (result.IsEmpty()) {
// The TryCatch above is still in effect and will have caught the error.
String::Utf8Value error(try_catch.Exception());
printf("error: %s\n", *error);
// Running the script failed; bail out.
return false;
}
return true;
}
static Handle<Value> LogCallback
( const Arguments& args
)
{
if (args.Length() < 1) return v8::Undefined();
HandleScope scope;
Handle<Value> arg = args[0];
String::Utf8Value value(arg);
printf("Logged: %s\n", *value);
fflush(stdout);
return v8::Undefined();
}
int main
( int argc
, char *argv[]
)
{
loop = ev_default_loop(0);
map<string, string> options;
string file;
ParseOptions(argc, argv, options, &file);
if (file.empty()) {
fprintf(stderr, "No script was specified.\n");
return 1;
}
HandleScope scope;
Handle<String> source = ReadFile(file);
if (source.IsEmpty()) {
fprintf(stderr, "Error reading '%s'.\n", file.c_str());
return 1;
}
context = Context::New(NULL, ObjectTemplate::New());
Context::Scope context_scope(context);
Local<Object> g = Context::GetCurrent()->Global();
g->Set( String::New("log"), FunctionTemplate::New(LogCallback)->GetFunction());
g->Set( String::New("TCP"), node_tcp_initialize(loop));
g->Set( String::New("HTTP"), node_http_initialize(loop));
// Compile and run the script
if (!compile(source))
return false;
ev_loop(loop, 0);
context.Dispose();
return 0;
}