RustPython-test/crates/stdlib/src/select.rs at main · RustPython/RustPython-test · GitHub

Repository navigation

History

742 lines (652 loc) · 23.8 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

// spell-checker:disable

use crate::vm::{

PyObject, PyObjectRef, PyRef, PyResult, TryFromObject, VirtualMachine, builtins::PyListRef,

builtins::PyModule,

};

use std::{io, mem};

pub(crate) fn make_module(vm: &VirtualMachine) -> PyRef<PyModule> {

#[cfg(windows)]

crate::vm::windows::init_winsock();

#[cfg(unix)]

{

use crate::vm::class::PyClassImpl;

decl::poll::PyPoll::make_class(&vm.ctx);

}

decl::make_module(vm)

}

#[cfg(unix)]

mod platform {

pub use libc::{FD_ISSET, FD_SET, FD_SETSIZE, FD_ZERO, fd_set, select, timeval};

pub use std::os::unix::io::RawFd;

pub const fn check_err(x: i32) -> bool {

x < 0

}

#[allow(non_snake_case)]

#[cfg(windows)]

mod platform {

pub use WinSock::{FD_SET as fd_set, FD_SETSIZE, SOCKET as RawFd, TIMEVAL as timeval, select};

use windows_sys::Win32::Networking::WinSock;

// based off winsock2.h: https://gist.github.com/piscisaureus/906386#file-winsock2-h-L128-L141

pub unsafe fn FD_SET(fd: RawFd, set: *mut fd_set) {

unsafe {

let mut slot = (&raw mut (*set).fd_array).cast::<RawFd>();

let fd_count = (*set).fd_count;

for _ in 0..fd_count {

if *slot == fd {

return;

}

slot = slot.add(1);

}

// slot == &fd_array[fd_count] at this point

if fd_count < FD_SETSIZE {

*slot = fd as RawFd;

(*set).fd_count += 1;

}

pub unsafe fn FD_ZERO(set: *mut fd_set) {

unsafe { (*set).fd_count = 0 };

}

pub unsafe fn FD_ISSET(fd: RawFd, set: *mut fd_set) -> bool {

use WinSock::__WSAFDIsSet;

unsafe { __WSAFDIsSet(fd as _, set) != 0 }

}

pub fn check_err(x: i32) -> bool {

x == WinSock::SOCKET_ERROR

}

#[cfg(target_os = "wasi")]

mod platform {

pub use libc::{FD_SETSIZE, timeval};

pub use std::os::wasi::io::RawFd;

pub fn check_err(x: i32) -> bool {

x < 0

}

#[repr(C)]

pub struct fd_set {

__nfds: usize,

__fds: [libc::c_int; FD_SETSIZE],

}

#[allow(non_snake_case)]

pub unsafe fn FD_ISSET(fd: RawFd, set: *const fd_set) -> bool {

let set = unsafe { &*set };

let n = set.__nfds;

for p in &set.__fds[..n] {

if *p == fd {

return true;

}

false

}

#[allow(non_snake_case)]

pub unsafe fn FD_SET(fd: RawFd, set: *mut fd_set) {

let set = unsafe { &mut *set };

let n = set.__nfds;

for p in &set.__fds[..n] {

if *p == fd {

return;

}

set.__nfds = n + 1;

set.__fds[n] = fd;

}

#[allow(non_snake_case)]

pub unsafe fn FD_ZERO(set: *mut fd_set) {

let set = unsafe { &mut *set };

set.__nfds = 0;

}

unsafe extern "C" {

pub fn select(

nfds: libc::c_int,

readfds: *mut fd_set,

writefds: *mut fd_set,

errorfds: *mut fd_set,

timeout: *const timeval,

) -> libc::c_int;

}

use platform::RawFd;

pub use platform::timeval;

#[derive(Traverse)]

struct Selectable {

obj: PyObjectRef,

#[pytraverse(skip)]

fno: RawFd,

}

impl TryFromObject for Selectable {

fn try_from_object(vm: &VirtualMachine, obj: PyObjectRef) -> PyResult<Self> {

let fno = obj.try_to_value(vm).or_else(|_| {

let meth = vm.get_method_or_type_error(

obj.clone(),

vm.ctx.interned_str("fileno").unwrap(),

|| "select arg must be an int or object with a fileno() method".to_owned(),

)?;

meth.call((), vm)?.try_into_value(vm)

})?;

Ok(Self { obj, fno })

}

// Keep it in a MaybeUninit, since on windows FD_ZERO doesn't actually zero the whole thing

#[repr(transparent)]

pub struct FdSet(mem::MaybeUninit<platform::fd_set>);

impl FdSet {

pub fn new() -> Self {

// it's just ints, and all the code that's actually

// interacting with it is in C, so it's safe to zero

let mut fdset = std::mem::MaybeUninit::zeroed();

unsafe { platform::FD_ZERO(fdset.as_mut_ptr()) };

Self(fdset)

}

pub fn insert(&mut self, fd: RawFd) {

unsafe { platform::FD_SET(fd, self.0.as_mut_ptr()) };

}

pub fn contains(&mut self, fd: RawFd) -> bool {

unsafe { platform::FD_ISSET(fd, self.0.as_mut_ptr()) }

}

pub fn clear(&mut self) {

unsafe { platform::FD_ZERO(self.0.as_mut_ptr()) };

}

pub fn highest(&mut self) -> Option<RawFd> {

(0..platform::FD_SETSIZE as RawFd)

.rev()

.find(|&i| self.contains(i))

}

pub fn select(

nfds: libc::c_int,

readfds: &mut FdSet,

writefds: &mut FdSet,

errfds: &mut FdSet,

timeout: Option<&mut timeval>,

) -> io::Result<i32> {

let timeout = match timeout {

Some(tv) => tv as *mut timeval,

None => std::ptr::null_mut(),

};

let ret = unsafe {

platform::select(

nfds,

readfds.0.as_mut_ptr(),

writefds.0.as_mut_ptr(),

errfds.0.as_mut_ptr(),

timeout,

)

};

if platform::check_err(ret) {

Err(io::Error::last_os_error())

} else {

Ok(ret)

}

fn sec_to_timeval(sec: f64) -> timeval {

timeval {

tv_sec: sec.trunc() as _,

tv_usec: (sec.fract() * 1e6) as _,

}

#[pymodule(name = "select")]

mod decl {

use super::*;

use crate::vm::{

PyObjectRef, PyResult, VirtualMachine,

builtins::PyTypeRef,

convert::ToPyException,

function::{Either, OptionalOption},

stdlib::time,

};

#[pyattr]

fn error(vm: &VirtualMachine) -> PyTypeRef {

vm.ctx.exceptions.os_error.to_owned()

}

#[pyfunction]

fn select(

rlist: PyObjectRef,

wlist: PyObjectRef,

xlist: PyObjectRef,

timeout: OptionalOption<Either<f64, isize>>,

vm: &VirtualMachine,

) -> PyResult<(PyListRef, PyListRef, PyListRef)> {

let mut timeout = timeout.flatten().map(|e| match e {

Either::A(f) => f,

Either::B(i) => i as f64,

});

if let Some(timeout) = timeout

&& timeout < 0.0

{

return Err(vm.new_value_error("timeout must be positive"));

}

let deadline = timeout.map(|s| time::time(vm).unwrap() + s);

let seq2set = |list: &PyObject| -> PyResult<(Vec<Selectable>, FdSet)> {

let v: Vec<Selectable> = list.try_to_value(vm)?;

let mut fds = FdSet::new();

for fd in &v {

fds.insert(fd.fno);

}

Ok((v, fds))

};

let (rlist, mut r) = seq2set(&rlist)?;

let (wlist, mut w) = seq2set(&wlist)?;

let (xlist, mut x) = seq2set(&xlist)?;

if rlist.is_empty() && wlist.is_empty() && xlist.is_empty() {

let empty = vm.ctx.new_list(vec![]);

return Ok((empty.clone(), empty.clone(), empty));

}

let nfds: i32 = [&mut r, &mut w, &mut x]

.iter_mut()

.filter_map(|set| set.highest())

.max()

.map_or(0, |n| n + 1) as _;

loop {

let mut tv = timeout.map(sec_to_timeval);

let res = super::select(nfds, &mut r, &mut w, &mut x, tv.as_mut());

match res {

Ok(_) => break,

Err(err) if err.kind() == io::ErrorKind::Interrupted => {}

Err(err) => return Err(err.to_pyexception(vm)),

}

vm.check_signals()?;

if let Some(ref mut timeout) = timeout {

*timeout = deadline.unwrap() - time::time(vm).unwrap();

if *timeout < 0.0 {

r.clear();

w.clear();

x.clear();

break;

}

// retry select() if we haven't reached the deadline yet

}

let set2list = |list: Vec<Selectable>, mut set: FdSet| {

vm.ctx.new_list(

list.into_iter()

.filter(|fd| set.contains(fd.fno))

.map(|fd| fd.obj)

.collect(),

)

};

let rlist = set2list(rlist, r);

let wlist = set2list(wlist, w);

let xlist = set2list(xlist, x);

Ok((rlist, wlist, xlist))

}

#[cfg(unix)]

#[pyfunction]

fn poll() -> poll::PyPoll {

poll::PyPoll::default()

}

#[cfg(unix)]

#[pyattr]

use libc::{POLLERR, POLLHUP, POLLIN, POLLNVAL, POLLOUT, POLLPRI};

#[cfg(unix)]

pub(super) mod poll {

use super::*;

use crate::vm::{

AsObject, PyPayload,

builtins::PyFloat,

common::lock::PyMutex,

convert::{IntoPyException, ToPyObject},

function::OptionalArg,

stdlib::io::Fildes,

};

use libc::pollfd;

use num_traits::{Signed, ToPrimitive};

use std::{

convert::TryFrom,

time::{Duration, Instant},

};

#[derive(Default)]

pub(super) struct TimeoutArg<const MILLIS: bool>(pub Option<Duration>);

impl<const MILLIS: bool> TryFromObject for TimeoutArg<MILLIS> {

fn try_from_object(vm: &VirtualMachine, obj: PyObjectRef) -> PyResult<Self> {

let timeout = if vm.is_none(&obj) {

None

} else if let Some(float) = obj.downcast_ref::<PyFloat>() {

let float = float.to_f64();

if float.is_nan() {

return Err(vm.new_value_error("Invalid value NaN (not a number)"));

}

if float.is_sign_negative() {

None

} else {

let secs = if MILLIS { float * 1000.0 } else { float };

Some(Duration::from_secs_f64(secs))

}

} else if let Some(int) = obj.try_index_opt(vm).transpose()? {

if int.as_bigint().is_negative() {

None

} else {

let n = int

.as_bigint()

.to_u64()

.ok_or_else(|| vm.new_overflow_error("value out of range"))?;

Some(if MILLIS {

Duration::from_millis(n)

} else {

Duration::from_secs(n)

})

}

} else {

return Err(vm.new_type_error(format!(

"expected an int or float for duration, got {}",

obj.class()

)));

};

Ok(Self(timeout))

}

#[pyclass(module = "select", name = "poll")]

#[derive(Default, Debug, PyPayload)]

pub struct PyPoll {

// keep sorted

fds: PyMutex<Vec<pollfd>>,

}

#[inline]

fn search(fds: &[pollfd], fd: i32) -> Result<usize, usize> {

fds.binary_search_by_key(&fd, |pfd| pfd.fd)

}

fn insert_fd(fds: &mut Vec<pollfd>, fd: i32, events: i16) {

match search(fds, fd) {

Ok(i) => fds[i].events = events,

Err(i) => fds.insert(

pollfd {

fd,

events,

revents: 0,

}

fn get_fd_mut(fds: &mut [pollfd], fd: i32) -> Option<&mut pollfd> {

search(fds, fd).ok().map(move |i| &mut fds[i])

}

fn remove_fd(fds: &mut Vec<pollfd>, fd: i32) -> Option<pollfd> {

search(fds, fd).ok().map(|i| fds.remove(i))

}

// new EventMask type

#[derive(Copy, Clone)]

#[repr(transparent)]

pub struct EventMask(pub i16);

impl TryFromObject for EventMask {

fn try_from_object(vm: &VirtualMachine, obj: PyObjectRef) -> PyResult<Self> {

use crate::builtins::PyInt;

let int = obj

.downcast::<PyInt>()

.map_err(|_| vm.new_type_error("argument must be an integer"))?;

let val = int.as_bigint();

if val.is_negative() {

return Err(vm.new_value_error("negative event mask"));

}

// Try converting to i16, should raise OverflowError if too large

let mask = i16::try_from(val)

.map_err(|_| vm.new_overflow_error("event mask value out of range"))?;

Ok(Self(mask))

}

const DEFAULT_EVENTS: i16 = libc::POLLIN | libc::POLLPRI | libc::POLLOUT;

#[pyclass]

impl PyPoll {

#[pymethod]

fn register(

&self,

Fildes(fd): Fildes,

eventmask: OptionalArg<EventMask>,

) -> PyResult<()> {

let mask = match eventmask {

OptionalArg::Present(event_mask) => event_mask.0,

OptionalArg::Missing => DEFAULT_EVENTS,

};

insert_fd(&mut self.fds.lock(), fd, mask);

Ok(())

}

#[pymethod]

fn modify(

&self,

Fildes(fd): Fildes,

eventmask: EventMask,

vm: &VirtualMachine,

) -> PyResult<()> {

let mut fds = self.fds.lock();

// CPython raises KeyError if fd is not registered, match that behavior

let pfd = get_fd_mut(&mut fds, fd)

.ok_or_else(|| vm.new_key_error(vm.ctx.new_int(fd).into()))?;

pfd.events = eventmask.0;

Ok(())

}

#[pymethod]

fn unregister(&self, Fildes(fd): Fildes, vm: &VirtualMachine) -> PyResult<()> {

let removed = remove_fd(&mut self.fds.lock(), fd);

removed

.map(drop)

.ok_or_else(|| vm.new_key_error(vm.ctx.new_int(fd).into()))

}

#[pymethod]

fn poll(

&self,

timeout: OptionalArg<TimeoutArg<true>>,

vm: &VirtualMachine,

) -> PyResult<Vec<PyObjectRef>> {

let mut fds = self.fds.lock();

let TimeoutArg(timeout) = timeout.unwrap_or_default();

let timeout_ms = match timeout {

Some(d) => i32::try_from(d.as_millis())

.map_err(|_| vm.new_overflow_error("value out of range"))?,

None => -1i32,

};

let deadline = timeout.map(|d| Instant::now() + d);

let mut poll_timeout = timeout_ms;

loop {

let res = unsafe { libc::poll(fds.as_mut_ptr(), fds.len() as _, poll_timeout) };

match nix::Error::result(res) {

Ok(_) => break,

Err(nix::Error::EINTR) => vm.check_signals()?,

Err(e) => return Err(e.into_pyexception(vm)),

}

if let Some(d) = deadline {

if let Some(remaining) = d.checked_duration_since(Instant::now()) {

poll_timeout = remaining.as_millis() as i32;

} else {

break;

}

Ok(fds

.iter()

.filter(|pfd| pfd.revents != 0)

.map(|pfd| (pfd.fd, pfd.revents & 0xfff).to_pyobject(vm))

.collect())

}

#[cfg(any(target_os = "linux", target_os = "android", target_os = "redox"))]

#[pyattr(name = "epoll", once)]

fn epoll(vm: &VirtualMachine) -> PyTypeRef {

use crate::vm::class::PyClassImpl;

epoll::PyEpoll::make_class(&vm.ctx)

}

#[cfg(any(target_os = "linux", target_os = "android", target_os = "redox"))]

#[pyattr]

use libc::{

EPOLL_CLOEXEC, EPOLLERR, EPOLLEXCLUSIVE, EPOLLHUP, EPOLLIN, EPOLLMSG, EPOLLONESHOT,

EPOLLOUT, EPOLLPRI, EPOLLRDBAND, EPOLLRDHUP, EPOLLRDNORM, EPOLLWAKEUP, EPOLLWRBAND,

EPOLLWRNORM,

};

#[cfg(any(target_os = "linux", target_os = "android", target_os = "redox"))]

#[pyattr]

const EPOLLET: u32 = libc::EPOLLET as u32;

#[cfg(any(target_os = "linux", target_os = "android", target_os = "redox"))]

pub(super) mod epoll {

use super::*;

use crate::vm::{

PyPayload,

builtins::PyTypeRef,

common::lock::{PyRwLock, PyRwLockReadGuard},

convert::{IntoPyException, ToPyObject},

function::OptionalArg,

stdlib::io::Fildes,

types::Constructor,

};

use rustix::event::epoll::{self, EventData, EventFlags};

use std::ops::Deref;

use std::os::fd::{AsRawFd, IntoRawFd, OwnedFd};

use std::time::Instant;

#[pyclass(module = "select", name = "epoll")]

#[derive(Debug, rustpython_vm::PyPayload)]

pub struct PyEpoll {

epoll_fd: PyRwLock<Option<OwnedFd>>,

}

#[derive(FromArgs)]

pub struct EpollNewArgs {

#[pyarg(any, default = -1)]

sizehint: i32,

#[pyarg(any, default = 0)]

flags: i32,

}

impl Constructor for PyEpoll {

type Args = EpollNewArgs;

fn py_new(cls: PyTypeRef, args: EpollNewArgs, vm: &VirtualMachine) -> PyResult {

if let ..=-2 | 0 = args.sizehint {

return Err(vm.new_value_error("negative sizehint"));

}

if !matches!(args.flags, 0 | libc::EPOLL_CLOEXEC) {

return Err(vm.new_os_error("invalid flags".to_owned()));

}

Self::new()

.map_err(|e| e.into_pyexception(vm))?

.into_ref_with_type(vm, cls)

.map(Into::into)

}

#[derive(FromArgs)]

struct EpollPollArgs {

#[pyarg(any, default)]

timeout: poll::TimeoutArg<false>,

#[pyarg(any, default = -1)]

maxevents: i32,

}

#[pyclass(with(Constructor))]

impl PyEpoll {

fn new() -> std::io::Result<Self> {

let epoll_fd = epoll::create(epoll::CreateFlags::CLOEXEC)?;

let epoll_fd = Some(epoll_fd).into();

Ok(Self { epoll_fd })

}

#[pymethod]

fn close(&self) -> std::io::Result<()> {

let fd = self.epoll_fd.write().take();

if let Some(fd) = fd {

nix::unistd::close(fd.into_raw_fd())?;

}

Ok(())

}

#[pygetset]

fn closed(&self) -> bool {

self.epoll_fd.read().is_none()

}

fn get_epoll(

&self,

vm: &VirtualMachine,

) -> PyResult<impl Deref<Target = OwnedFd> + '_> {

PyRwLockReadGuard::try_map(self.epoll_fd.read(), |x| x.as_ref())

.map_err(|_| vm.new_value_error("I/O operation on closed epoll object"))

}

#[pymethod]

fn fileno(&self, vm: &VirtualMachine) -> PyResult<i32> {

self.get_epoll(vm).map(|epoll_fd| epoll_fd.as_raw_fd())

}

#[pyclassmethod]

fn fromfd(cls: PyTypeRef, fd: OwnedFd, vm: &VirtualMachine) -> PyResult<PyRef<Self>> {

let epoll_fd = Some(fd).into();

Self { epoll_fd }.into_ref_with_type(vm, cls)

}

#[pymethod]

fn register(

&self,

fd: Fildes,

eventmask: OptionalArg<u32>,

vm: &VirtualMachine,

) -> PyResult<()> {

let events = match eventmask {

OptionalArg::Present(mask) => EventFlags::from_bits_retain(mask),

OptionalArg::Missing => EventFlags::IN | EventFlags::PRI | EventFlags::OUT,

};

let epoll_fd = &*self.get_epoll(vm)?;

let data = EventData::new_u64(fd.as_raw_fd() as u64);

epoll::add(epoll_fd, fd, data, events).map_err(|e| e.into_pyexception(vm))

}

#[pymethod]

fn modify(&self, fd: Fildes, eventmask: u32, vm: &VirtualMachine) -> PyResult<()> {

let events = EventFlags::from_bits_retain(eventmask);

let epoll_fd = &*self.get_epoll(vm)?;

let data = EventData::new_u64(fd.as_raw_fd() as u64);

epoll::modify(epoll_fd, fd, data, events).map_err(|e| e.into_pyexception(vm))

}

#[pymethod]

fn unregister(&self, fd: Fildes, vm: &VirtualMachine) -> PyResult<()> {

let epoll_fd = &*self.get_epoll(vm)?;

epoll::delete(epoll_fd, fd).map_err(|e| e.into_pyexception(vm))

}

#[pymethod]

fn poll(&self, args: EpollPollArgs, vm: &VirtualMachine) -> PyResult<PyListRef> {

let poll::TimeoutArg(timeout) = args.timeout;

let maxevents = args.maxevents;

let mut poll_timeout =

timeout

.map(rustix::event::Timespec::try_from)

.transpose()

.map_err(|_| vm.new_overflow_error("timeout is too large"))?;

let deadline = timeout.map(|d| Instant::now() + d);

let maxevents = match maxevents {

..-1 => {

return Err(vm.new_value_error(format!(

"maxevents must be greater than 0, got {maxevents}"

)));

}

-1 => libc::FD_SETSIZE - 1,

_ => maxevents as usize,

};

let mut events = Vec::<epoll::Event>::with_capacity(maxevents);

let epoll = &*self.get_epoll(vm)?;

loop {

events.clear();

match epoll::wait(

epoll,

rustix::buffer::spare_capacity(&mut events),

poll_timeout.as_ref(),

) {

Ok(_) => break,

Err(rustix::io::Errno::INTR) => vm.check_signals()?,

Err(e) => return Err(e.into_pyexception(vm)),

}

if let Some(deadline) = deadline {

if let Some(new_timeout) = deadline.checked_duration_since(Instant::now()) {

poll_timeout = Some(new_timeout.try_into().unwrap());

} else {

break;

}

let ret = events

.iter()

.map(|ev| (ev.data.u64() as i32, { ev.flags }.bits()).to_pyobject(vm))

.collect();

Ok(vm.ctx.new_list(ret))

}

#[pymethod]

fn __enter__(zelf: PyRef<Self>, vm: &VirtualMachine) -> PyResult<PyRef<Self>> {

zelf.get_epoll(vm)?;

Ok(zelf)

}

#[pymethod]

fn __exit__(

&self,

_exc_type: OptionalArg,

_exc_value: OptionalArg,

_exc_tb: OptionalArg,

) -> std::io::Result<()> {

self.close()

}

RustPython-test/crates/stdlib/src/select.rs at main · RustPython/RustPython-test · GitHub

Repository navigation

Expand file tree

Breadcrumbs

select.rs

Latest commit

History

Breadcrumbs

select.rs

File metadata and controls