beta quality v8 plugin

core/mule.c

@@ -198,7 +198,9 @@ void uwsgi_mule_handler() {
 		else if (interesting_fd == uwsgi.mules[uwsgi.muleid - 1].queue_pipe[1] || interesting_fd == uwsgi.shared->mule_queue_pipe[1] || farm_has_msg(interesting_fd)) {
 			len = read(interesting_fd, message, 65536);
 			if (len < 0) {
-				uwsgi_error("read()");
+				if (errno != EAGAIN && errno != EINTR && errno != EWOULDBLOCK) {
+					uwsgi_error("uwsgi_mule_handler/read()");
+				}
 			}
 			else {
 				int i, found = 0;

plugins/lua/lua_plugin.c

@@ -722,6 +722,7 @@ static void uwsgi_lua_configurator(char *filename, char *magic_table[]) {
 		uwsgi_log("error running Lua configurator: %s\n", lua_tostring(L, -1));
 		exit(1);
 	}
+	free(code);
 
 	if (!lua_istable(L, -1)) {
 		uwsgi_log("Lua configurator has to return a table !!!\n");

plugins/v8/plugin.c

@@ -0,0 +1,27 @@
+#include <uwsgi.h>
+
+int uwsgi_v8_init(void);
+void uwsgi_v8_apps(void);
+void uwsgi_v8_configurator(char *, char **);
+uint16_t uwsgi_v8_rpc(void *, uint8_t, char **, uint16_t *, char *);
+
+static void uwsgi_v8_register(void) {
+        uwsgi_register_configurator(".js", uwsgi_v8_configurator);
+}
+
+extern struct uwsgi_option uwsgi_v8_options[];
+
+static int uwsgi_v8_request(struct wsgi_request *wsgi_req) {
+	return UWSGI_OK;
+}
+
+struct uwsgi_plugin v8_plugin = {
+	.name = "v8",
+	.modifier1 = 24,
+	.init = uwsgi_v8_init,
+	.init_apps = uwsgi_v8_apps,
+	.options = uwsgi_v8_options,
+	.on_load = uwsgi_v8_register,
+	.rpc = uwsgi_v8_rpc,
+	.request = uwsgi_v8_request,
+};

plugins/v8/uwsgiplugin.py

@@ -0,0 +1,6 @@
+NAME='v8'
+
+CFLAGS = []
+LDFLAGS = []
+LIBS = ['-lv8']
+GCC_LIST = ['plugin', 'v8_uwsgi.cc']

plugins/v8/v8_uwsgi.cc

@@ -0,0 +1,205 @@
+#include <uwsgi.h>
+#include <v8.h>
+
+struct uwsgi_v8 {
+        v8::Persistent<v8::Context> *contexts;
+        struct uwsgi_string_list *load;
+} uv8;
+
+extern struct uwsgi_server uwsgi;
+extern struct uwsgi_plugin v8_plugin;
+
+struct uwsgi_option uwsgi_v8_options[] = {
+        {(char *)"v8-load", required_argument, 0, (char *)"load a javascript file", uwsgi_opt_add_string_list, &uv8.load, 0},
+        {0, 0, 0, 0},
+};
+
+static v8::Handle<v8::Value> uwsgi_v8_api_register_rpc(const v8::Arguments& args) {
+
+        if (args.Length() > 1) {
+		v8::String::Utf8Value name(args[0]->ToString());
+		uint8_t j_argc = 0;
+		if (args.Length() > 2) {
+			j_argc = args[2]->Uint32Value();
+		}
+
+		v8::Persistent<v8::Function> func = v8::Persistent<v8::Function>::New(v8::Handle<v8::Function>::Cast(args[1]));
+
+		if (uwsgi_register_rpc(*name, v8_plugin.modifier1, j_argc, *func)) {
+			uwsgi_log("[uwsgi-v8] unable to register RPC function \"%s\"\n", *name);
+			return v8::Undefined();
+		}
+		
+		return v8::True();
+        }
+
+        return v8::Undefined();
+}
+
+
+static void uwsgi_v8_load_file(v8::Persistent<v8::Context> context, char *filename) {
+
+	v8::HandleScope handle_scope;
+
+	v8::Context::Scope context_scope(context);
+	
+	size_t len = 0;
+	char *code = uwsgi_open_and_read(filename, &len, 1, NULL);
+
+        // we do not use TryCatch as we directly use stderr and simply exit with error code 1
+        v8::Handle<v8::Script> script = v8::Script::Compile( v8::String::New(code), v8::String::New(filename) );
+        free(code);
+        if (script.IsEmpty()) {
+		exit(1);
+        }
+
+        v8::Handle<v8::Value> result = script->Run();
+        if (result.IsEmpty()) {
+		exit(1);
+        }
+
+}
+
+extern "C" int uwsgi_v8_init(){
+        uwsgi_log("Initializing V8 %s environment... (%d Isolates)\n", v8::V8::GetVersion(), uwsgi.cores);
+        uv8.contexts = (v8::Persistent<v8::Context> *) uwsgi_malloc( sizeof(v8::Persistent<v8::Context>*) * uwsgi.cores );
+        return 0;
+}
+
+static v8::Handle<v8::Value> uwsgi_v8_api_log(const v8::Arguments& args) {
+ 
+	if (args.Length() > 0) {
+		v8::String::Utf8Value str(args[0]->ToString());
+		size_t slen = strlen(*str);
+		if ((*str)[slen-1] == '\n') {
+			uwsgi_log("%s", *str);
+		}
+		else {
+			uwsgi_log("%s\n", *str);
+		}
+	}
+	return v8::Undefined();
+}
+
+static v8::Persistent<v8::Context> uwsgi_v8_new_isolate(int core) {
+	v8::HandleScope handle_scope;
+	if (core > 0) {
+        	// create a new isolate
+        	v8::Isolate *isolate = v8::Isolate::New();
+        	// set as the current isolate
+        	v8::Isolate::Scope iscope(isolate);
+	}
+
+	v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
+	// print alias is always handy
+	global->Set(v8::String::New("uwsgi_log"), v8::FunctionTemplate::New(uwsgi_v8_api_log));
+	global->Set(v8::String::New("uwsgi_register_rpc"), v8::FunctionTemplate::New(uwsgi_v8_api_register_rpc));
+
+        // create a new context
+        v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
+	return context;
+}
+
+extern "C" void uwsgi_v8_apps() {
+
+        if (!uv8.load) return;
+
+        int i;
+        for(i=0;i<uwsgi.cores;i++) {
+                uv8.contexts[i] = uwsgi_v8_new_isolate(i);
+                struct uwsgi_string_list *usl = uv8.load;
+                while(usl) {
+                        uwsgi_v8_load_file(uv8.contexts[i], usl->value);
+                        usl = usl->next;
+                }
+        }
+}
+
+extern "C" void uwsgi_v8_configurator(char *filename, char *magic_table[]) {
+
+	v8::HandleScope handle_scope;
+
+	uwsgi_log_initial("[uWSGI] getting javascript (V8) configuration from %s\n", filename);
+
+	size_t len = 0;
+	char *code = uwsgi_open_and_read(filename, &len, 1, NULL);
+
+	v8::Handle<v8::Context> context = v8::Context::New();
+
+	v8::Context::Scope context_scope(context);
+
+	// we do not use TryCatch as we directly use stderr and simply exit with error code 1
+	
+	v8::Handle<v8::Script> script = v8::Script::Compile( v8::String::New(code), v8::String::New(filename) );
+	if (script.IsEmpty()) {
+		exit(1);
+	}
+	free(code);
+
+	v8::Handle<v8::Value> result = script->Run();
+	if (result.IsEmpty()) {
+		exit(1);
+	}
+
+	if (!result->IsArray() && !result->IsObject()) {
+		uwsgi_log("javascript return value must be an object or an array !!!\n");
+		exit(1);
+	}
+
+	uint32_t i;
+	const v8::Local<v8::Array> props = result->ToObject()->GetPropertyNames();
+	const uint32_t l = props->Length();
+
+	for(i=0;i<l;i++) {
+		const v8::Local<v8::Value> key = props->Get(i);	
+		const v8::Local<v8::Value> value = result->ToObject()->Get(key);	
+		v8::String::Utf8Value c_key(key->ToString());
+		if (value->IsArray()) {
+			uint32_t opt_l = value->ToObject()->Get(v8::String::New("length"))->ToObject()->Uint32Value();
+			uint32_t j;
+			for(j=0;j<opt_l;j++) {
+				v8::String::Utf8Value c_value(value->ToObject()->Get(j)->ToString());
+				add_exported_option(uwsgi_str(*c_key), uwsgi_str(*c_value), 0);
+			}
+		}
+		else {
+			v8::String::Utf8Value c_value(value->ToString());
+			add_exported_option(uwsgi_str(*c_key), uwsgi_str(*c_value), 0);
+		}
+	}
+	
+}
+
+extern "C" uint16_t uwsgi_v8_rpc(void * func, uint8_t argc, char **argv, uint16_t argvs[], char *buffer) {
+
+	v8::HandleScope handle_scope;
+	
+	v8::Handle<v8::Value> argj[256];
+
+        struct wsgi_request *wsgi_req = current_wsgi_req();
+
+        v8::Context::Scope context_scope(uv8.contexts[wsgi_req->async_id]);
+
+
+	v8::Persistent<v8::Function> l_func = static_cast<v8::Function*> (func);
+
+	uint8_t i;
+	for(i=0;i<argc;i++) {
+		argj[i] = v8::String::New(argv[i], argvs[i]);
+	}
+
+	v8::Handle<v8::Value> result = l_func->Call(l_func, argc, argj);
+	if (result.IsEmpty()) return 0;
+
+	v8::Handle<v8::String> robj = result->ToString();
+	
+	v8::String::Utf8Value r_value(robj);
+	if (!*robj) return 0;
+	uint16_t rlen = robj->Length();
+	memcpy(buffer, *r_value, rlen);
+	// call GC every time, could be overkill, we should allow to tune that choice
+	while(!v8::V8::IdleNotification()) {};
+        return rlen;
+
+}
+