mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-10-22 08:33:12 -05:00
billythemenace2andClaude Opus 5.5
e5b66f2ddf
GetThreadContext can fail on a target that was just suspended. A raise used to throw "cannot read the target thread context" at the first failure; it now resumes the target and tries again, within the existing 1 s retry limit, before throwing. SONIC SUPERSTARS hit the throw once in three runs. guest_raise_in_host_code prints the longest single raise. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
#include "SceTypes.hpp"
|
|
#include <algorithm>
|
|
#include <atomic>
|
|
#include <chrono>
|
|
#include <cstdio>
|
|
#include <cstdint>
|
|
#include <cstdlib>
|
|
#include <string>
|
|
#include <thread>
|
|
|
|
extern "C" {
|
|
int APS5_VABI scePthreadCreate(Pthread*, const PthreadAttr*, PthreadEntry, void*, const char*);
|
|
int APS5_VABI scePthreadJoin(Pthread, void**);
|
|
int APS5_VABI sceKernelInstallExceptionHandler(int, void*);
|
|
int APS5_VABI sceKernelRemoveExceptionHandler(int);
|
|
int APS5_VABI sceKernelRaiseException(Pthread, int);
|
|
}
|
|
|
|
static constexpr int SigUsr1 = 30;
|
|
static constexpr int Raises = 100;
|
|
static void Require(bool value) { if (!value) std::abort(); }
|
|
|
|
static std::FILE* shared = nullptr;
|
|
static std::atomic<int> deliveries{0};
|
|
static std::atomic<int> released{0};
|
|
static std::atomic<bool> stop{false};
|
|
static std::atomic<bool> started{false};
|
|
|
|
static void APS5_VABI Handler(int, void*) {
|
|
const auto delivery = deliveries.fetch_add(1) + 1;
|
|
while (released.load() < delivery) std::this_thread::yield();
|
|
}
|
|
|
|
static void* APS5_VABI Writer(void*) {
|
|
const std::string block(1u << 20u, 'x');
|
|
started.store(true);
|
|
while (!stop.load()) {
|
|
Require(std::fwrite(block.data(), 1, block.size(), shared) == block.size());
|
|
Require(std::fseek(shared, 0, SEEK_SET) == 0);
|
|
volatile std::uint64_t spin = 0;
|
|
for (std::uint64_t i = 0; i < 200000; ++i) spin = spin + i;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
int main() {
|
|
std::atomic<bool> done{false};
|
|
std::thread watchdog([&done] {
|
|
for (int i = 0; i < 20000 && !done.load(); ++i) std::this_thread::sleep_for(std::chrono::milliseconds(1));
|
|
if (!done.load()) std::abort();
|
|
});
|
|
shared = std::tmpfile();
|
|
Require(shared != nullptr);
|
|
Require(sceKernelInstallExceptionHandler(SigUsr1, reinterpret_cast<void*>(&Handler)) == 0);
|
|
Pthread writer = nullptr;
|
|
Require(scePthreadCreate(&writer, nullptr, Writer, nullptr, "host writer") == 0);
|
|
while (!started.load()) std::this_thread::yield();
|
|
auto longest = std::chrono::steady_clock::duration::zero();
|
|
for (int raise = 1; raise <= Raises; ++raise) {
|
|
const auto raisedAt = std::chrono::steady_clock::now();
|
|
Require(sceKernelRaiseException(writer, SigUsr1) == 0);
|
|
longest = std::max(longest, std::chrono::steady_clock::now() - raisedAt);
|
|
while (deliveries.load() < raise) std::this_thread::yield();
|
|
Require(std::fputc('y', shared) == 'y');
|
|
released.store(raise);
|
|
}
|
|
stop.store(true);
|
|
Require(scePthreadJoin(writer, nullptr) == 0);
|
|
Require(sceKernelRemoveExceptionHandler(SigUsr1) == 0);
|
|
std::fclose(shared);
|
|
std::printf("longest raise: %.2f ms\n", std::chrono::duration<double, std::milli>(longest).count());
|
|
done.store(true);
|
|
watchdog.join();
|
|
}
|