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#[macro_use]
extern crate log;
use deno_core::js_check;
use deno_core::BufVec;
use deno_core::ErrBox;
use deno_core::JsRuntime;
use deno_core::OpState;
use deno_core::Script;
use deno_core::StartupData;
use deno_core::ZeroCopyBuf;
use futures::future::poll_fn;
use futures::future::Future;
use serde_json::Value;
use std::cell::RefCell;
use std::convert::TryInto;
use std::env;
use std::net::SocketAddr;
use std::pin::Pin;
use std::rc::Rc;
use std::task::Poll;
use tokio::io::AsyncRead;
use tokio::io::AsyncWrite;
use tokio::net::TcpListener;
use tokio::net::TcpStream;
use tokio::runtime;
struct Logger;
impl log::Log for Logger {
fn enabled(&self, metadata: &log::Metadata) -> bool {
metadata.level() <= log::max_level()
}
fn log(&self, record: &log::Record) {
if self.enabled(record.metadata()) {
println!("{} - {}", record.level(), record.args());
}
}
fn flush(&self) {}
}
fn create_isolate() -> JsRuntime {
let startup_data = StartupData::Script(Script {
source: include_str!("http_bench_json_ops.js"),
filename: "http_bench_json_ops.js",
});
let mut runtime = JsRuntime::new(startup_data, false);
runtime.register_op("listen", deno_core::json_op_sync(op_listen));
runtime.register_op("close", deno_core::json_op_sync(op_close));
runtime.register_op("accept", deno_core::json_op_async(op_accept));
runtime.register_op("read", deno_core::json_op_async(op_read));
runtime.register_op("write", deno_core::json_op_async(op_write));
runtime
}
fn op_listen(
state: &mut OpState,
_args: Value,
_bufs: &mut [ZeroCopyBuf],
) -> Result<Value, ErrBox> {
debug!("listen");
let addr = "127.0.0.1:4544".parse::<SocketAddr>().unwrap();
let std_listener = std::net::TcpListener::bind(&addr)?;
let listener = TcpListener::from_std(std_listener)?;
let rid = state.resource_table.add("tcpListener", Box::new(listener));
Ok(serde_json::json!({ "rid": rid }))
}
fn op_close(
state: &mut OpState,
args: Value,
_buf: &mut [ZeroCopyBuf],
) -> Result<Value, ErrBox> {
let rid: u32 = args
.get("rid")
.unwrap()
.as_u64()
.unwrap()
.try_into()
.unwrap();
debug!("close rid={}", rid);
state
.resource_table
.close(rid)
.map(|_| serde_json::json!(()))
.ok_or_else(ErrBox::bad_resource_id)
}
fn op_accept(
state: Rc<RefCell<OpState>>,
args: Value,
_bufs: BufVec,
) -> impl Future<Output = Result<Value, ErrBox>> {
let rid: u32 = args
.get("rid")
.unwrap()
.as_u64()
.unwrap()
.try_into()
.unwrap();
debug!("accept rid={}", rid);
poll_fn(move |cx| {
let resource_table = &mut state.borrow_mut().resource_table;
let listener = resource_table
.get_mut::<TcpListener>(rid)
.ok_or_else(ErrBox::bad_resource_id)?;
listener.poll_accept(cx)?.map(|(stream, _addr)| {
let rid = resource_table.add("tcpStream", Box::new(stream));
Ok(serde_json::json!({ "rid": rid }))
})
})
}
fn op_read(
state: Rc<RefCell<OpState>>,
args: Value,
mut bufs: BufVec,
) -> impl Future<Output = Result<Value, ErrBox>> {
assert_eq!(bufs.len(), 1, "Invalid number of arguments");
let rid: u32 = args
.get("rid")
.unwrap()
.as_u64()
.unwrap()
.try_into()
.unwrap();
debug!("read rid={}", rid);
poll_fn(move |cx| -> Poll<Result<Value, ErrBox>> {
let resource_table = &mut state.borrow_mut().resource_table;
let stream = resource_table
.get_mut::<TcpStream>(rid)
.ok_or_else(ErrBox::bad_resource_id)?;
Pin::new(stream)
.poll_read(cx, &mut bufs[0])?
.map(|nread| Ok(serde_json::json!({ "nread": nread })))
})
}
fn op_write(
state: Rc<RefCell<OpState>>,
args: Value,
bufs: BufVec,
) -> impl Future<Output = Result<Value, ErrBox>> {
assert_eq!(bufs.len(), 1, "Invalid number of arguments");
let rid: u32 = args
.get("rid")
.unwrap()
.as_u64()
.unwrap()
.try_into()
.unwrap();
debug!("write rid={}", rid);
poll_fn(move |cx| {
let resource_table = &mut state.borrow_mut().resource_table;
let stream = resource_table
.get_mut::<TcpStream>(rid)
.ok_or_else(ErrBox::bad_resource_id)?;
Pin::new(stream)
.poll_write(cx, &bufs[0])?
.map(|nwritten| Ok(serde_json::json!({ "nwritten": nwritten })))
})
}
fn main() {
log::set_logger(&Logger).unwrap();
log::set_max_level(
env::args()
.find(|a| a == "-D")
.map(|_| log::LevelFilter::Debug)
.unwrap_or(log::LevelFilter::Warn),
);
// NOTE: `--help` arg will display V8 help and exit
deno_core::v8_set_flags(env::args().collect());
let isolate = create_isolate();
let mut runtime = runtime::Builder::new()
.basic_scheduler()
.enable_all()
.build()
.unwrap();
js_check(runtime.block_on(isolate));
}
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