mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-10-30 12:25:49 +00:00
Jota
8bed63610b
XNU's poll reports POLLHUP as soon as either direction of a stream socket has ended, adds POLLPRI and POLLRDBAND to it and then drops POLLOUT. FreeBSD's sopoll_generic reports POLLHUP only once the receive and the send side are both shut, and Linux does the same, so on macOS a guest saw POLLIN|POLLHUP for a stream whose peer had only shut its sending side, and POLLHUP for one that had only shut its own. When the host reports POLLHUP on a guest stream socket, ask it about each direction alone and keep POLLHUP only when both have ended, report the requested POLLOUT while the sending side is shut or writable, and leave urgent data to SIOCATMARK.
386 lines
20 KiB
C++
386 lines
20 KiB
C++
#include "prx/libkernel/include/Api.hpp"
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#include "prx/libc/include/Api.hpp"
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <winsock2.h>
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#else
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#endif
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#include "prx/libc/include/general/VabiMacros.hpp"
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#include "SceTypes.hpp"
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#include <algorithm>
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#include <array>
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#include <chrono>
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <stdexcept>
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#include <string>
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#include <thread>
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#ifdef _WIN32
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using NativeSocket = SOCKET;
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constexpr NativeSocket NativeInvalid = INVALID_SOCKET;
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static void CloseNative(NativeSocket socket) { closesocket(socket); }
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#else
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using NativeSocket = int;
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constexpr NativeSocket NativeInvalid = -1;
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static void CloseNative(NativeSocket socket) { close(socket); }
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#endif
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static void Require(bool value) { if (!value) std::abort(); }
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constexpr short In = 0x1;
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constexpr short Priority = 0x2;
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constexpr short ReadBand = 0x80;
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constexpr short Out = 0x4;
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constexpr short Hup = 0x10;
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constexpr short Invalid = 0x20;
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constexpr short ReadNormal = 0x40;
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constexpr short WriteBand = 0x100;
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constexpr std::int16_t EvfiltUser = -11;
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constexpr std::uint16_t EvAdd = 0x0001;
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constexpr std::uint16_t EvClear = 0x0020;
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constexpr std::uint32_t NoteTrigger = 0x01000000;
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static KernelEvent UserEvent(std::uint16_t flags, std::uint32_t fflags) {
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KernelEvent change{};
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change.ident = 7;
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change.filter = EvfiltUser;
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change.flags = flags;
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change.fflags = fflags;
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return change;
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}
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static void PollsKqueues(int socket) {
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const int queue = kqueue_nid_postfix();
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Require(queue >= 0);
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GuestPollDescriptor kq{queue, static_cast<short>(In | ReadNormal | Out | Priority | ReadBand | WriteBand), -1};
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Require(poll_nid_postfix(&kq, 1, 0) == 0 && kq.revents == 0);
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const auto added = UserEvent(EvAdd | EvClear, 0);
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Require(kevent_nid_postfix(queue, &added, 1, nullptr, 0, nullptr) == 0);
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Require(poll_nid_postfix(&kq, 1, 0) == 0 && kq.revents == 0);
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const auto start = std::chrono::steady_clock::now();
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Require(poll_nid_postfix(&kq, 1, 30) == 0 && kq.revents == 0);
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Require(std::chrono::steady_clock::now() - start >= std::chrono::milliseconds(25));
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std::thread trigger([queue] {
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std::this_thread::sleep_for(std::chrono::milliseconds(20));
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const auto triggered = UserEvent(0, NoteTrigger);
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Require(kevent_nid_postfix(queue, &triggered, 1, nullptr, 0, nullptr) == 0);
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});
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GuestPollDescriptor mixed[2]{{socket, In, -1}, {queue, static_cast<short>(In | Out), -1}};
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Require(poll_nid_postfix(mixed, 2, -1) == 1);
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trigger.join();
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Require(mixed[0].revents == 0 && mixed[1].revents == In);
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Require(poll_nid_postfix(&kq, 1, 0) == 1 && kq.revents == (In | ReadNormal));
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KernelEvent events[1]{};
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const KernelTimespec zero{0, 0};
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Require(kevent_nid_postfix(queue, nullptr, 0, events, 1, &zero) == 1);
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Require(poll_nid_postfix(&kq, 1, 0) == 0 && kq.revents == 0);
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Require(close_nid_postfix(queue) == 0);
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Require(poll_nid_postfix(&kq, 1, 0) == 1 && kq.revents == Invalid);
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}
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static void PollsFilesAndDirectories(int socket) {
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constexpr int ReadWrite = 0x0002, Create = 0x0200, DirectoryFlag = 0x00020000;
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const auto stamp = std::to_string(std::chrono::steady_clock::now().time_since_epoch().count());
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const std::string filePath = "anyps5-poll-file-" + stamp;
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const std::string directoryPath = "anyps5-poll-directory-" + stamp;
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const int file = open_nid_postfix(filePath.c_str(), ReadWrite | Create, 0644);
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Require(file >= 0);
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Require(mkdir_nid_postfix(directoryPath.c_str(), 0755) == 0);
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const int directory = open_nid_postfix(directoryPath.c_str(), DirectoryFlag, 0);
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Require(directory >= 0);
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GuestPollDescriptor vnode{file, static_cast<short>(In | Out | ReadNormal | Priority | ReadBand | WriteBand), -1};
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Require(poll_nid_postfix(&vnode, 1, 0) == 1 && vnode.revents == (In | Out | ReadNormal));
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vnode.events = static_cast<short>(Priority | ReadBand | WriteBand);
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Require(poll_nid_postfix(&vnode, 1, 0) == 0 && vnode.revents == 0);
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const auto start = std::chrono::steady_clock::now();
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Require(poll_nid_postfix(&vnode, 1, 30) == 0);
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Require(std::chrono::steady_clock::now() - start >= std::chrono::milliseconds(25));
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GuestPollDescriptor folder{directory, static_cast<short>(In | Out), -1};
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Require(poll_nid_postfix(&folder, 1, -1) == 1 && folder.revents == (In | Out));
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GuestPollDescriptor mixed[3]{{socket, In, -1}, {file, Out, -1}, {directory, ReadNormal, -1}};
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Require(poll_nid_postfix(mixed, 3, -1) == 2);
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Require(mixed[0].revents == 0 && mixed[1].revents == Out && mixed[2].revents == ReadNormal);
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Require(close_nid_postfix(directory) == 0 && close_nid_postfix(file) == 0);
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Require(rmdir_nid_postfix(directoryPath.c_str()) == 0 && unlink_nid_postfix(filePath.c_str()) == 0);
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}
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static void StandardDescriptorFile(int descriptor) {
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const int saved = dup_nid_postfix(descriptor);
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const std::string path = "anyps5-poll-input-" + std::to_string(std::chrono::steady_clock::now().time_since_epoch().count());
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const int file = open_nid_postfix(path.c_str(), 0x0002 | 0x0200, 0644);
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Require(file >= 0);
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Require(dup2_nid_postfix(file, descriptor) == descriptor);
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if (file != descriptor) Require(close_nid_postfix(file) == 0);
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GuestPollDescriptor input{descriptor, static_cast<short>(In | Out | ReadNormal | Priority), -1};
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const int ready = poll_nid_postfix(&input, 1, 0);
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if (ready != 1) std::fprintf(stderr, "poll on a regular file at descriptor %d returned %d instead of 1\n", descriptor, ready);
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Require(ready == 1 && input.revents == (In | Out | ReadNormal));
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input.events = Priority;
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Require(poll_nid_postfix(&input, 1, 0) == 0 && input.revents == 0);
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if (saved >= 0) {
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Require(dup2_nid_postfix(saved, descriptor) == descriptor);
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Require(close_nid_postfix(saved) == 0);
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} else Require(close_nid_postfix(descriptor) == 0);
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Require(unlink_nid_postfix(path.c_str()) == 0);
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}
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static void TestPipes(int socket) {
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int ends[2];
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Require(pipe_nid_postfix(ends) == 0);
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GuestPollDescriptor empty[2]{{ends[0], In, -1}, {ends[1], Out, -1}};
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Require(poll_nid_postfix(empty, 2, 0) == 1 && empty[0].revents == 0 && empty[1].revents == Out);
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GuestPollDescriptor reader{ends[0], In | ReadNormal, -1};
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const auto start = std::chrono::steady_clock::now();
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Require(poll_nid_postfix(&reader, 1, 50) == 0 && reader.revents == 0);
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Require(std::chrono::steady_clock::now() - start >= std::chrono::milliseconds(40));
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const auto shortWaitStart = std::chrono::steady_clock::now();
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for (int i = 0; i < 20; ++i) Require(poll_nid_postfix(&reader, 1, 2) == 0 && reader.revents == 0);
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const auto shortWait = std::chrono::steady_clock::now() - shortWaitStart;
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Require(shortWait >= std::chrono::milliseconds(40) && shortWait < std::chrono::milliseconds(200));
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Require(write_nid_postfix(ends[1], "wake", 4) == 4);
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Require(poll_nid_postfix(&reader, 1, 1000) == 1 && reader.revents == (In | ReadNormal));
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GuestPollDescriptor writer{ends[1], In, -1};
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Require(poll_nid_postfix(&writer, 1, 0) == 0 && writer.revents == 0);
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GuestPollDescriptor readerOut{ends[0], Out, -1};
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bool threw = false;
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try { poll_nid_postfix(&readerOut, 1, 0); } catch (const std::runtime_error&) { threw = true; }
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Require(threw);
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GuestPollDescriptor mixed[2]{{socket, In, -1}, {ends[0], In, -1}};
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Require(poll_nid_postfix(mixed, 2, 1000) == 1 && mixed[0].revents == 0 && mixed[1].revents == In);
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char buffer[8]{};
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Require(read_nid_postfix(ends[0], buffer, sizeof(buffer)) == 4);
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Require(poll_nid_postfix(mixed, 2, 0) == 0 && mixed[1].revents == 0);
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std::thread late([&] {
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std::this_thread::sleep_for(std::chrono::milliseconds(30));
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Require(write_nid_postfix(ends[1], "x", 1) == 1);
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});
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Require(poll_nid_postfix(mixed, 2, 2000) == 1 && mixed[1].revents == In);
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late.join();
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std::thread lateInfinite([&] {
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std::this_thread::sleep_for(std::chrono::milliseconds(30));
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Require(write_nid_postfix(ends[1], "y", 1) == 1);
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});
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Require(read_nid_postfix(ends[0], buffer, sizeof(buffer)) == 1);
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const auto waitStart = std::chrono::steady_clock::now();
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Require(poll_nid_postfix(&reader, 1, -1) == 1 && reader.revents == (In | ReadNormal));
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Require(std::chrono::steady_clock::now() - waitStart >= std::chrono::milliseconds(20));
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lateInfinite.join();
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Require(read_nid_postfix(ends[0], buffer, sizeof(buffer)) == 1);
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Require(write_nid_postfix(ends[1], "z", 1) == 1);
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Require(close_nid_postfix(ends[1]) == 0);
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Require(poll_nid_postfix(&reader, 1, 0) == 1 && reader.revents == (In | ReadNormal | Hup));
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Require(read_nid_postfix(ends[0], buffer, sizeof(buffer)) == 1);
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Require(poll_nid_postfix(&reader, 1, 0) == 1 && reader.revents == (In | ReadNormal | Hup));
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Require(read_nid_postfix(ends[0], buffer, sizeof(buffer)) == 0);
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GuestPollDescriptor closedPipe{ends[1], In, -1};
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Require(poll_nid_postfix(&closedPipe, 1, 0) == 1 && closedPipe.revents == Invalid);
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Require(close_nid_postfix(ends[0]) == 0);
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int full[2];
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Require(pipe_nid_postfix(full) == 0);
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static char block[4096];
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std::int64_t queued = 0;
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GuestPollDescriptor fill{full[1], Out, -1};
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while (poll_nid_postfix(&fill, 1, 0) == 1) {
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Require(fill.revents == Out && queued < (1 << 20));
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Require(write_nid_postfix(full[1], block, 256) == 256);
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queued += 256;
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}
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Require(queued > 0 && fill.revents == 0);
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while (queued > 0) {
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const std::int64_t taken = read_nid_postfix(full[0], block, static_cast<std::uint64_t>(std::min<std::int64_t>(queued, sizeof(block))));
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Require(taken > 0);
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queued -= taken;
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}
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Require(poll_nid_postfix(&fill, 1, 0) == 1 && fill.revents == Out);
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Require(close_nid_postfix(full[0]) == 0);
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Require(close_nid_postfix(full[1]) == 0);
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int other[2];
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Require(pipe_nid_postfix(other) == 0);
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Require(close_nid_postfix(other[0]) == 0);
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GuestPollDescriptor orphan{other[1], Out, -1};
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Require(poll_nid_postfix(&orphan, 1, 0) == 1 && orphan.revents == Hup);
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orphan.events = In | Out;
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Require(poll_nid_postfix(&orphan, 1, 0) == 1 && orphan.revents == (In | Hup));
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Require(close_nid_postfix(other[1]) == 0);
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}
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static void PollsUrgentData() {
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const int listener = socket_nid_postfix(2, 1, 0);
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Require(listener >= 0);
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std::array<unsigned char, 16> address{16, 2, 0, 0, 127, 0, 0, 1};
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Require(bind_nid_postfix(listener, address.data(), address.size()) == 0);
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std::uint32_t size = address.size();
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Require(getsockname_nid_postfix(listener, address.data(), &size) == 0);
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Require(listen_nid_postfix(listener, 4) == 0);
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const int client = socket_nid_postfix(2, 1, 0);
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Require(client >= 0 && fcntl_nid_postfix(client, 4, 4) == 0);
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if (connect_nid_postfix(client, address.data(), address.size()) != 0)
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Require(*__error_nid_postfix() == 36);
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GuestPollDescriptor connecting{client, Priority | Out, -1};
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Require(poll_nid_postfix(&connecting, 1, 1000) == 1 && connecting.revents == Out);
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const int server = accept_nid_postfix(listener, nullptr, nullptr);
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Require(server >= 0);
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GuestPollDescriptor pair[2]{{server, Priority | Out, -1}, {client, In | Priority | Out | ReadBand, -1}};
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Require(poll_nid_postfix(pair, 2, 0) == 2 && pair[0].revents == Out && pair[1].revents == Out);
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char byte = 'u';
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Require(send_nid_postfix(client, &byte, 1, 1) == -1 && *__error_nid_postfix() == 45);
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Require(recv_nid_postfix(server, &byte, 1, 1) == -1 && *__error_nid_postfix() == 45);
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const NativeSocket peer = ::socket(AF_INET, SOCK_STREAM, 0);
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Require(peer != NativeInvalid);
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sockaddr_in native{};
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native.sin_family = AF_INET;
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std::memcpy(&native.sin_port, address.data() + 2, 2);
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std::memcpy(&native.sin_addr, address.data() + 4, 4);
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Require(::connect(peer, reinterpret_cast<const sockaddr*>(&native), sizeof(native)) == 0);
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const int urgent = accept_nid_postfix(listener, nullptr, nullptr);
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Require(urgent >= 0);
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GuestPollDescriptor waiting{urgent, Priority, -1};
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Require(poll_nid_postfix(&waiting, 1, 0) == 0 && waiting.revents == 0);
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Require(::send(peer, "u", 1, MSG_OOB) == 1);
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Require(poll_nid_postfix(&waiting, 1, 1000) == 1 && waiting.revents == Priority);
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GuestPollDescriptor bands{urgent, In | Priority | Out, -1};
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Require(poll_nid_postfix(&bands, 1, 0) == 1 && bands.revents == (Priority | Out));
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#ifdef _WIN32
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GuestPollDescriptor band{urgent, ReadBand, -1};
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Require(poll_nid_postfix(&band, 1, 0) == 1 && band.revents == ReadBand);
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#endif
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CloseNative(peer);
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Require(close_nid_postfix(urgent) == 0);
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Require(close_nid_postfix(server) == 0);
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Require(close_nid_postfix(client) == 0);
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Require(close_nid_postfix(listener) == 0);
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}
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static void PollsAStreamWhosePeerClosed() {
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const int listener = socket_nid_postfix(2, 1, 0);
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Require(listener >= 0);
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std::array<unsigned char, 16> address{16, 2, 0, 0, 127, 0, 0, 1};
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Require(bind_nid_postfix(listener, address.data(), address.size()) == 0);
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std::uint32_t size = address.size();
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Require(getsockname_nid_postfix(listener, address.data(), &size) == 0 && listen_nid_postfix(listener, 4) == 0);
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const int client = socket_nid_postfix(2, 1, 0);
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Require(client >= 0 && connect_nid_postfix(client, address.data(), address.size()) == 0);
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const int server = accept_nid_postfix(listener, nullptr, nullptr);
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Require(server >= 0);
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Require(shutdown_nid_postfix(client, 1) == 0);
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GuestPollDescriptor wait{client, static_cast<short>(In | Out), 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == Out);
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wait = {server, In, 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == In);
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wait = {server, static_cast<short>(In | Out), 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == (In | Out));
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wait = {server, ReadNormal, 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == ReadNormal);
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#ifndef _WIN32
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wait = {server, static_cast<short>(In | Priority | ReadBand), 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == In);
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#endif
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wait = {server, Out, 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == Out);
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char byte;
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Require(recv_nid_postfix(server, &byte, 1, 0) == 0);
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Require(shutdown_nid_postfix(server, 1) == 0);
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wait = {server, In, 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == (In | Hup));
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wait = {client, In, 0};
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Require(poll_nid_postfix(&wait, 1, 1000) == 1 && wait.revents == (In | Hup));
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for (const int descriptor : {client, server, listener}) Require(close_nid_postfix(descriptor) == 0);
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}
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#ifndef _WIN32
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static void PollsAHungUpSocketWithoutPollout() {
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const int listener = socket_nid_postfix(2, 1, 0);
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Require(listener >= 0);
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std::array<unsigned char, 16> address{16, 2, 0, 0, 127, 0, 0, 1};
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Require(bind_nid_postfix(listener, address.data(), address.size()) == 0);
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std::uint32_t size = address.size();
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Require(getsockname_nid_postfix(listener, address.data(), &size) == 0 && listen_nid_postfix(listener, 1) == 0);
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const int client = socket_nid_postfix(2, 1, 0);
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Require(client >= 0 && connect_nid_postfix(client, address.data(), address.size()) == 0);
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const int server = accept_nid_postfix(listener, nullptr, nullptr);
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Require(server >= 0);
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Require(close_nid_postfix(client) == 0);
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char byte = 0;
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GuestPollDescriptor ended{server, In, 0};
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Require(poll_nid_postfix(&ended, 1, 1000) == 1);
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Require(recv_nid_postfix(server, &byte, 1, 0) == 0);
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Require(shutdown_nid_postfix(server, 1) == 0);
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GuestPollDescriptor hungUp{server, static_cast<short>(In | Out), 0};
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Require(poll_nid_postfix(&hungUp, 1, 1000) == 1 && hungUp.revents == (In | Hup));
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Require(close_nid_postfix(server) == 0 && close_nid_postfix(listener) == 0);
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}
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#endif
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int main() {
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for (const int descriptor : {0, 1, 2}) StandardDescriptorFile(descriptor);
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PollsUrgentData();
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PollsAStreamWhosePeerClosed();
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#ifndef _WIN32
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PollsAHungUpSocketWithoutPollout();
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#endif
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const int listener = socket_nid_postfix(2, 1, 0);
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Require(listener >= 0 && listener < 1024);
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std::array<unsigned char, 16> address{16, 2, 0, 0, 127, 0, 0, 1};
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Require(bind_nid_postfix(listener, address.data(), address.size()) == 0);
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std::uint32_t size = address.size();
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Require(getsockname_nid_postfix(listener, address.data(), &size) == 0);
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Require(listen_nid_postfix(listener, 4) == 0);
|
|
GuestPollDescriptor single{listener, In, -1};
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Require(poll_nid_postfix(&single, 1, 0) == 0 && single.revents == 0);
|
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const auto start = std::chrono::steady_clock::now();
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Require(poll_nid_postfix(&single, 1, 50) == 0);
|
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Require(std::chrono::steady_clock::now() - start >= std::chrono::milliseconds(40));
|
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const int client = socket_nid_postfix(2, 1, 0);
|
|
Require(client >= 0 && connect_nid_postfix(client, address.data(), address.size()) == 0);
|
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Require(poll_nid_postfix(&single, 1, 1000) == 1 && single.revents == In);
|
|
const int server = accept_nid_postfix(listener, nullptr, nullptr);
|
|
Require(server >= 0);
|
|
GuestPollDescriptor pair[3]{{server, In, 0}, {-1, In, 7}, {client, Out, 0}};
|
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Require(poll_nid_postfix(pair, 3, 1000) == 1);
|
|
Require(pair[0].revents == 0 && pair[1].revents == 0 && pair[2].revents == Out);
|
|
const char message[] = "poll";
|
|
Require(send_nid_postfix(client, message, sizeof(message), 0) == sizeof(message));
|
|
pair[2].events = In;
|
|
Require(poll_nid_postfix(pair, 3, 1000) == 1 && pair[0].revents == In && pair[2].revents == 0);
|
|
char buffer[8]{};
|
|
Require(recv_nid_postfix(server, buffer, sizeof(buffer), 0) == sizeof(message));
|
|
Require(close_nid_postfix(client) == 0);
|
|
Require(poll_nid_postfix(pair, 1, 1000) == 1 && (pair[0].revents & (In | Hup)) != 0);
|
|
Require(recv_nid_postfix(server, buffer, sizeof(buffer), 0) == 0);
|
|
GuestPollDescriptor closed[2]{{client, In, 0}, {listener, In, 0}};
|
|
Require(poll_nid_postfix(closed, 2, -1) == 1 && closed[0].revents == Invalid && closed[1].revents == 0);
|
|
Require(poll_nid_postfix(nullptr, 0, 10) == 0);
|
|
const auto shortWaitStart = std::chrono::steady_clock::now();
|
|
for (int i = 0; i < 20; ++i) Require(poll_nid_postfix(nullptr, 0, 1) == 0);
|
|
const auto shortWait = std::chrono::steady_clock::now() - shortWaitStart;
|
|
Require(shortWait >= std::chrono::milliseconds(20) && shortWait < std::chrono::milliseconds(200));
|
|
Require(poll_nid_postfix(nullptr, 1, 0) == -1 && *__error_nid_postfix() == 14);
|
|
Require(poll_nid_postfix(&single, 1, -2) == -1 && *__error_nid_postfix() == 22);
|
|
TestPipes(listener);
|
|
PollsFilesAndDirectories(listener);
|
|
Require(close_nid_postfix(server) == 0);
|
|
for (const char* path : {"/dev/urandom", "/dev/random"}) {
|
|
const int random = open_nid_postfix(path, 0, 0);
|
|
Require(random >= 0);
|
|
GuestPollDescriptor device{random, static_cast<short>(In | Out | Priority), -1};
|
|
Require(poll_nid_postfix(&device, 1, 0) == 1 && device.revents == In);
|
|
device.events = static_cast<short>(ReadNormal | Out);
|
|
Require(poll_nid_postfix(&device, 1, 0) == 1 && device.revents == ReadNormal);
|
|
device.events = static_cast<short>(Out | Priority | ReadBand | WriteBand);
|
|
Require(poll_nid_postfix(&device, 1, -1) == 1 && device.revents == (Out | Priority | ReadBand | WriteBand));
|
|
GuestPollDescriptor mixed[2]{{listener, In, 0}, {random, Out, 0}};
|
|
Require(poll_nid_postfix(mixed, 2, -1) == 1 && mixed[0].revents == 0 && mixed[1].revents == Out);
|
|
Require(close_nid_postfix(random) == 0);
|
|
}
|
|
GuestPollDescriptor console[3]{{0, static_cast<short>(In | ReadNormal | Out), -1}, {1, static_cast<short>(In | Out | WriteBand), -1}, {2, Out, -1}};
|
|
Require(poll_nid_postfix(console, 3, 0) == 2);
|
|
Require(console[0].revents == 0 && console[1].revents == Out && console[2].revents == Out);
|
|
GuestPollDescriptor input{0, In, -1};
|
|
const auto inputStart = std::chrono::steady_clock::now();
|
|
Require(poll_nid_postfix(&input, 1, 30) == 0 && input.revents == 0);
|
|
Require(std::chrono::steady_clock::now() - inputStart >= std::chrono::milliseconds(25));
|
|
PollsKqueues(listener);
|
|
Require(close_nid_postfix(listener) == 0);
|
|
}
|