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#[macro_use]
extern crate log;
use deno_core::serde_json;
use deno_core::CoreIsolate;
use deno_core::CoreIsolateState;
use deno_core::ErrBox;
use deno_core::Script;
use deno_core::StartupData;
use deno_core::ZeroCopyBuf;
use futures::future::poll_fn;
use futures::future::Future;
use std::env;
use std::io::Error;
use std::io::ErrorKind;
use std::net::SocketAddr;
use std::pin::Pin;
use std::task::Poll;
use tokio::io::AsyncRead;
use tokio::io::AsyncWrite;
use tokio::net::TcpListener;
use tokio::net::TcpStream;
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) {}
}
pub fn isolate_new() -> CoreIsolate {
let startup_data = StartupData::Script(Script {
source: include_str!("http_bench_json_ops.js"),
filename: "http_bench_json_ops.js",
});
let mut isolate = CoreIsolate::new(startup_data, false);
isolate.register_op_json_sync("listen", op_listen);
isolate.register_op_json_async("accept", op_accept);
isolate.register_op_json_async("read", op_read);
isolate.register_op_json_async("write", op_write);
isolate.register_op_json_sync("close", op_close);
isolate
}
fn op_close(
state: &mut CoreIsolateState,
args: serde_json::Value,
_buf: &mut [ZeroCopyBuf],
) -> Result<serde_json::Value, ErrBox> {
let rid = args.get("rid").unwrap().as_u64().unwrap() as u32;
debug!("close rid={}", rid);
let resource_table = &mut state.resource_table.borrow_mut();
resource_table
.close(rid)
.map(|_| serde_json::json!(()))
.ok_or_else(bad_resource)
}
fn op_listen(
state: &mut CoreIsolateState,
_args: serde_json::Value,
_buf: &mut [ZeroCopyBuf],
) -> Result<serde_json::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 resource_table = &mut state.resource_table.borrow_mut();
let rid = resource_table.add("tcpListener", Box::new(listener));
Ok(serde_json::json!({ "rid": rid }))
}
fn op_accept(
state: &mut CoreIsolateState,
args: serde_json::Value,
_buf: &mut [ZeroCopyBuf],
) -> impl Future<Output = Result<serde_json::Value, ErrBox>> {
let rid = args.get("rid").unwrap().as_u64().unwrap() as u32;
debug!("accept rid={}", rid);
let resource_table = state.resource_table.clone();
poll_fn(move |cx| {
let resource_table = &mut resource_table.borrow_mut();
let listener = resource_table
.get_mut::<TcpListener>(rid)
.ok_or_else(bad_resource)?;
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: &mut CoreIsolateState,
args: serde_json::Value,
bufs: &mut [ZeroCopyBuf],
) -> impl Future<Output = Result<serde_json::Value, ErrBox>> {
assert_eq!(bufs.len(), 1, "Invalid number of arguments");
let rid = args.get("rid").unwrap().as_u64().unwrap() as u32;
debug!("read rid={}", rid);
let mut buf = bufs[0].clone();
let resource_table = state.resource_table.clone();
poll_fn(move |cx| -> Poll<Result<serde_json::Value, ErrBox>> {
let resource_table = &mut resource_table.borrow_mut();
let stream = resource_table
.get_mut::<TcpStream>(rid)
.ok_or_else(bad_resource)?;
Pin::new(stream)
.poll_read(cx, &mut buf)?
.map(|nread| Ok(serde_json::json!({ "nread": nread })))
})
}
fn op_write(
state: &mut CoreIsolateState,
args: serde_json::Value,
bufs: &mut [ZeroCopyBuf],
) -> impl Future<Output = Result<serde_json::Value, ErrBox>> {
assert_eq!(bufs.len(), 1, "Invalid number of arguments");
let rid = args.get("rid").unwrap().as_u64().unwrap() as u32;
debug!("write rid={}", rid);
let buf = bufs[0].clone();
let resource_table = state.resource_table.clone();
poll_fn(move |cx| {
let resource_table = &mut resource_table.borrow_mut();
let stream = resource_table
.get_mut::<TcpStream>(rid)
.ok_or_else(bad_resource)?;
Pin::new(stream)
.poll_write(cx, &buf)?
.map(|nwritten| Ok(serde_json::json!({ "nwritten": nwritten })))
})
}
fn bad_resource() -> ErrBox {
Error::new(ErrorKind::NotFound, "bad resource id").into()
}
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 = isolate_new();
let mut runtime = tokio::runtime::Builder::new()
.basic_scheduler()
.enable_all()
.build()
.unwrap();
deno_core::js_check(runtime.block_on(isolate));
}
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