mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 23:34:47 -05:00
856c44213b
* Compiler no longer has its own Tokio runtime. Compiler handles one message and then exits. * Uses the simpler ts.CompilerHost interface instead of ts.LanguageServiceHost. * avoids recompiling the same module by introducing a hacky but simple `hashset<string>` that stores the module names that have been already compiled. * Removes the CompilerConfig op. * Removes a lot of the mocking stuff in compiler.ts like `this._ts`. It is not useful as we don't even have tests. * Turns off checkJs because it causes fmt_test to die with OOM.
268 lines
7.5 KiB
Rust
268 lines
7.5 KiB
Rust
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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use crate::deno_dir;
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use crate::errors::DenoResult;
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use crate::flags;
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use crate::global_timer::GlobalTimer;
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use crate::ops;
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use crate::permissions::DenoPermissions;
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use crate::progress::Progress;
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use crate::resources;
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use crate::resources::ResourceId;
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use crate::worker::Worker;
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use deno::Buf;
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use deno::Op;
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use deno::PinnedBuf;
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use futures::future::Shared;
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use std;
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use std::collections::HashMap;
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use std::collections::HashSet;
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use std::env;
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use std::fs;
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use std::ops::Deref;
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use std::sync::atomic::{AtomicUsize, Ordering};
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use std::sync::Arc;
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use std::sync::Mutex;
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use std::time::Instant;
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use tokio::sync::mpsc as async_mpsc;
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pub type WorkerSender = async_mpsc::Sender<Buf>;
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pub type WorkerReceiver = async_mpsc::Receiver<Buf>;
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pub type WorkerChannels = (WorkerSender, WorkerReceiver);
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pub type UserWorkerTable = HashMap<ResourceId, Shared<Worker>>;
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#[derive(Default)]
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pub struct Metrics {
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pub ops_dispatched: AtomicUsize,
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pub ops_completed: AtomicUsize,
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pub bytes_sent_control: AtomicUsize,
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pub bytes_sent_data: AtomicUsize,
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pub bytes_received: AtomicUsize,
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pub resolve_count: AtomicUsize,
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pub compiler_starts: AtomicUsize,
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}
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/// Isolate cannot be passed between threads but ThreadSafeState can.
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/// ThreadSafeState satisfies Send and Sync. So any state that needs to be
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/// accessed outside the main V8 thread should be inside ThreadSafeState.
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pub struct ThreadSafeState(Arc<State>);
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#[cfg_attr(feature = "cargo-clippy", allow(stutter))]
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pub struct State {
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pub dir: deno_dir::DenoDir,
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pub argv: Vec<String>,
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pub permissions: DenoPermissions,
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pub flags: flags::DenoFlags,
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/// When flags contains a `.config_path` option, the content of the
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/// configuration file will be resolved and set.
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pub config: Option<Vec<u8>>,
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/// When flags contains a `.config_path` option, the fully qualified path
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/// name of the passed path will be resolved and set.
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pub config_path: Option<String>,
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pub metrics: Metrics,
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pub worker_channels: Mutex<WorkerChannels>,
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pub global_timer: Mutex<GlobalTimer>,
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pub workers: Mutex<UserWorkerTable>,
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pub start_time: Instant,
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/// A reference to this worker's resource.
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pub resource: resources::Resource,
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pub dispatch_selector: ops::OpSelector,
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/// Reference to global progress bar.
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pub progress: Progress,
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/// Set of all URLs that have been compiled. This is a hacky way to work
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/// around the fact that --reload will force multiple compilations of the same
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/// module.
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compiled: Mutex<HashSet<String>>,
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}
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impl Clone for ThreadSafeState {
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fn clone(&self) -> Self {
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ThreadSafeState(self.0.clone())
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}
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}
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impl Deref for ThreadSafeState {
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type Target = Arc<State>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl ThreadSafeState {
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pub fn dispatch(&self, control: &[u8], zero_copy: Option<PinnedBuf>) -> Op {
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ops::dispatch_all(self, control, zero_copy, self.dispatch_selector)
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}
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}
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impl ThreadSafeState {
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pub fn new(
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flags: flags::DenoFlags,
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argv_rest: Vec<String>,
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dispatch_selector: ops::OpSelector,
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progress: Progress,
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) -> Self {
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let custom_root = env::var("DENO_DIR").map(String::into).ok();
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let (worker_in_tx, worker_in_rx) = async_mpsc::channel::<Buf>(1);
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let (worker_out_tx, worker_out_rx) = async_mpsc::channel::<Buf>(1);
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let internal_channels = (worker_out_tx, worker_in_rx);
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let external_channels = (worker_in_tx, worker_out_rx);
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let resource = resources::add_worker(external_channels);
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// take the passed flag and resolve the file name relative to the cwd
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let config_file = match &flags.config_path {
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Some(config_file_name) => {
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debug!("Compiler config file: {}", config_file_name);
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let cwd = std::env::current_dir().unwrap();
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Some(cwd.join(config_file_name))
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}
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_ => None,
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};
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// Convert the PathBuf to a canonicalized string. This is needed by the
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// compiler to properly deal with the configuration.
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let config_path = match &config_file {
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Some(config_file) => Some(
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config_file
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.canonicalize()
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.unwrap()
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.to_str()
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.unwrap()
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.to_owned(),
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),
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_ => None,
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};
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// Load the contents of the configuration file
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let config = match &config_file {
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Some(config_file) => {
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debug!("Attempt to load config: {}", config_file.to_str().unwrap());
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match fs::read(&config_file) {
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Ok(config_data) => Some(config_data.to_owned()),
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_ => panic!(
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"Error retrieving compiler config file at \"{}\"",
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config_file.to_str().unwrap()
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),
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}
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}
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_ => None,
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};
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ThreadSafeState(Arc::new(State {
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dir: deno_dir::DenoDir::new(custom_root, &config, progress.clone())
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.unwrap(),
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argv: argv_rest,
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permissions: DenoPermissions::from_flags(&flags),
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flags,
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config,
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config_path,
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metrics: Metrics::default(),
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worker_channels: Mutex::new(internal_channels),
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global_timer: Mutex::new(GlobalTimer::new()),
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workers: Mutex::new(UserWorkerTable::new()),
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start_time: Instant::now(),
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resource,
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dispatch_selector,
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progress,
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compiled: Mutex::new(HashSet::new()),
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}))
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}
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/// Read main module from argv
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pub fn main_module(&self) -> Option<String> {
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if self.argv.len() <= 1 {
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None
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} else {
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let specifier = self.argv[1].clone();
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let referrer = ".";
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match self.dir.resolve_module_url(&specifier, referrer) {
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Ok(url) => Some(url.to_string()),
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Err(e) => {
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debug!("Potentially swallowed error {}", e);
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None
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}
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}
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}
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}
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pub fn mark_compiled(&self, module_id: &str) {
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let mut c = self.compiled.lock().unwrap();
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c.insert(module_id.to_string());
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}
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pub fn has_compiled(&self, module_id: &str) -> bool {
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let c = self.compiled.lock().unwrap();
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c.contains(module_id)
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}
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#[inline]
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pub fn check_read(&self, filename: &str) -> DenoResult<()> {
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self.permissions.check_read(filename)
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}
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#[inline]
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pub fn check_write(&self, filename: &str) -> DenoResult<()> {
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self.permissions.check_write(filename)
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}
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#[inline]
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pub fn check_env(&self) -> DenoResult<()> {
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self.permissions.check_env()
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}
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#[inline]
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pub fn check_net(&self, host_and_port: &str) -> DenoResult<()> {
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self.permissions.check_net(host_and_port)
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}
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#[inline]
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pub fn check_net_url(&self, url: url::Url) -> DenoResult<()> {
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self.permissions.check_net_url(url)
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}
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#[inline]
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pub fn check_run(&self) -> DenoResult<()> {
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self.permissions.check_run()
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}
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#[cfg(test)]
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pub fn mock() -> ThreadSafeState {
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let argv = vec![String::from("./deno"), String::from("hello.js")];
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ThreadSafeState::new(
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flags::DenoFlags::default(),
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argv,
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ops::op_selector_std,
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Progress::new(),
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)
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}
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pub fn metrics_op_dispatched(
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&self,
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bytes_sent_control: usize,
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bytes_sent_data: usize,
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) {
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self.metrics.ops_dispatched.fetch_add(1, Ordering::SeqCst);
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self
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.metrics
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.bytes_sent_control
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.fetch_add(bytes_sent_control, Ordering::SeqCst);
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self
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.metrics
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.bytes_sent_data
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.fetch_add(bytes_sent_data, Ordering::SeqCst);
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}
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pub fn metrics_op_completed(&self, bytes_received: usize) {
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self.metrics.ops_completed.fetch_add(1, Ordering::SeqCst);
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self
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.metrics
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.bytes_received
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.fetch_add(bytes_received, Ordering::SeqCst);
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}
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}
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#[test]
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fn thread_safe() {
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fn f<S: Send + Sync>(_: S) {}
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f(ThreadSafeState::mock());
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}
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