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https://github.com/boykopovar/AnyPS5.git
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SandstromPLandClaude Opus 5.5
fd4b65d001
The sigtimedwait entry still said SIGPIPE has no host equivalent, and the sigaction entry left it out of the signals whose handlers run. guest_broken_pipe now also covers VLC's drain: with a handler and 13 blocked, sigtimedwait takes the 13 a failed write leaves pending; with 13 ignored, nothing is pending. Co-Authored-By: Claude Opus 5.5 <[email protected]>
63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
#include "prx/libkernel/include/Api.hpp"
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#include "prx/libc/include/Api.hpp"
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#include "prx/libc/include/general/VabiMacros.hpp"
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#include <csignal>
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#include <cstdint>
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#include <cstdlib>
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namespace {
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constexpr int Unix = 1;
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constexpr int Stream = 1;
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constexpr int BrokenPipe = 13;
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constexpr int PipeError = 32;
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constexpr int TryAgain = 35;
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volatile std::sig_atomic_t brokenPipeSignals = 0;
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void Require(bool value) {
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if (!value) std::abort();
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}
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void APS5_VABI CountBrokenPipe(int signal) {
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if (signal == BrokenPipe) brokenPipeSignals = brokenPipeSignals + 1;
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}
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int WriteToClosedPeer() {
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int pair[2] = {-1, -1};
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Require(socketpair_nid_postfix(Unix, Stream, 0, pair) == 0);
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Require(close_nid_postfix(pair[1]) == 0);
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*__error_nid_postfix() = 0;
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const bool failed = write_nid_postfix(pair[0], "x", 1) == -1;
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const int error = *__error_nid_postfix();
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Require(close_nid_postfix(pair[0]) == 0);
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return failed ? error : 0;
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}
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}
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int main() {
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const auto ignore = reinterpret_cast<GuestHandler>(std::uintptr_t{1});
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Require(signal_nid_postfix(BrokenPipe, ignore) == nullptr);
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Require(WriteToClosedPeer() == PipeError);
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Require(signal_nid_postfix(BrokenPipe, CountBrokenPipe) == ignore);
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Require(WriteToClosedPeer() == PipeError && brokenPipeSignals == 1);
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GuestSignalSet blocked{};
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blocked.bits[0] = 1u << (BrokenPipe - 1);
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Require(_sigprocmask_nid_postfix(1, &blocked, nullptr) == 0);
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Require(WriteToClosedPeer() == PipeError && brokenPipeSignals == 1);
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GuestSignalSet pending{};
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Require(sigpending_nid_postfix(&pending) == 0 && (pending.bits[0] & blocked.bits[0]) != 0);
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Require(_sigprocmask_nid_postfix(2, &blocked, nullptr) == 0 && brokenPipeSignals == 2);
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const KernelTimespec poll{0, 0};
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Require(_sigprocmask_nid_postfix(1, &blocked, nullptr) == 0);
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Require(WriteToClosedPeer() == PipeError);
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Require(sigtimedwait_nid_postfix(&blocked, nullptr, &poll) == BrokenPipe);
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Require(signal_nid_postfix(BrokenPipe, ignore) == CountBrokenPipe);
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Require(WriteToClosedPeer() == PipeError);
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*__error_nid_postfix() = 0;
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Require(sigtimedwait_nid_postfix(&blocked, nullptr, &poll) == -1 && *__error_nid_postfix() == TryAgain);
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Require(_sigprocmask_nid_postfix(2, &blocked, nullptr) == 0 && brokenPipeSignals == 2);
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Require(signal_nid_postfix(BrokenPipe, nullptr) == ignore);
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return 0;
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}
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