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Atmosphere/tests/TestOsEvents/source/test.cpp

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#include <stratosphere.hpp>
namespace ams {
namespace {
struct InterThreadSync {
util::Atomic<int> reader_state;
util::Atomic<int> writer_state;
os::EventType writer_ready_event;
os::EventType reader_ready_event;
union {
struct {
os::SystemEventType system_event_as_manual_clear_event;
os::SystemEventType system_event_as_manual_clear_interprocess_event;
os::SystemEventType system_event_as_auto_clear_event;
os::SystemEventType system_event_as_auto_clear_interprocess_event;
};
os::SystemEventType system_events[4];
};
};
bool IsManualClearEventIndex(size_t i) {
return i == 0 || i == 1;
}
alignas(os::MemoryPageSize) constinit u8 g_writer_thread_stack[16_KB];
alignas(os::MemoryPageSize) constinit u8 g_reader_thread_stack[16_KB];
void TestWriterThread(void *arg) {
/* Get the synchronization arguments. */
auto &sync = *static_cast<InterThreadSync *>(arg);
AMS_UNUSED(sync);
/* Wait for reader to be ready. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 1);
/* Verify that all events can be signaled. */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 1;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 1);
}
/* Verify that all events can be signaled (for TimedWait 0). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 2;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 2);
}
/* Verify that all events can be signaled (for TimedWait 2). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 3;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 3);
}
/* Verify that all events can be signaled (for True Wait). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 4;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 4);
}
/* Verify that all events can be signaled (TryWaitAny). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 5;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 5);
}
/* Verify that all events can be signaled (TimedWaitAny 0). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 6;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 6);
}
/* Verify that all events can be signaled (TimedWaitAny 2). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 7;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 7);
}
/* Verify that all events can be signaled (TrueWaitAny). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 8;
os::SignalEvent(std::addressof(sync.writer_ready_event));
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 8);
}
/* Verify that reader can receive without explicit sync. */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Set the event for this go. */
os::SignalSystemEvent(sync.system_events + i);
sync.writer_state = 9;
}
/* Wait for the reader to finish. */
os::WaitEvent(std::addressof(sync.reader_ready_event));
AMS_ABORT_UNLESS(sync.reader_state == 9);
}
void TestReaderThread(void *arg) {
/* Get the synchronization arguments. */
auto &sync = *static_cast<InterThreadSync *>(arg);
AMS_UNUSED(sync);
/* Set up multi-wait objects. */
os::MultiWaitType mw;
os::MultiWaitHolderType holders[util::size(sync.system_events)];
os::InitializeMultiWait(std::addressof(mw));
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
os::InitializeMultiWaitHolder(holders + i, sync.system_events + i);
os::LinkMultiWaitHolder(std::addressof(mw), holders + i);
}
ON_SCOPE_EXIT {
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
os::UnlinkMultiWaitHolder(holders + i);
os::FinalizeMultiWaitHolder(holders + i);
}
os::FinalizeMultiWait(std::addressof(mw));
};
/* Sanity check: all events are non-signaled. */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + i) == false);
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + i, TimeSpan::FromNanoSeconds(0)) == false);
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + i, TimeSpan::FromMilliSeconds(2)) == false);
}
/* Sanity check that wait any does the right thing when nothing is signaled. */
AMS_ABORT_UNLESS(os::TryWaitAny(std::addressof(mw)) == nullptr);
AMS_ABORT_UNLESS(os::TimedWaitAny(std::addressof(mw), TimeSpan::FromNanoSeconds(0)) == nullptr);
AMS_ABORT_UNLESS(os::TimedWaitAny(std::addressof(mw), TimeSpan::FromNanoSeconds(2)) == nullptr);
/* Let writer know that we're ready. */
sync.reader_state = 1;
os::SignalEvent(std::addressof(sync.reader_ready_event));
/* Verify that we can receive signal on each event. */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 1);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
if (i == n) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == true);
if (IsManualClearEventIndex(n)) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == true);
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
} else {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
} else {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
}
/* Let writer know we're done. */
sync.reader_state = 1;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive signal on each event (Timed Wait 0). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 2);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
if (i == n) {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(0)) == true);
if (IsManualClearEventIndex(n)) {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(0)) == true);
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(0)) == false);
} else {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(0)) == false);
}
} else {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(0)) == false);
}
}
/* Let writer know we're done. */
sync.reader_state = 2;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive signal on each event (Timed Wait 2). */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 3);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
if (i == n) {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(2)) == true);
if (IsManualClearEventIndex(n)) {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(2)) == true);
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(2)) == false);
} else {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(2)) == false);
}
} else {
AMS_ABORT_UNLESS(os::TimedWaitSystemEvent(sync.system_events + n, TimeSpan::FromMilliSeconds(2)) == false);
}
}
/* Let writer know we're done. */
sync.reader_state = 3;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive signal on each event. */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 4);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
if (i == n) {
os::WaitSystemEvent(sync.system_events + n);
if (IsManualClearEventIndex(n)) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == true);
os::WaitSystemEvent(sync.system_events + n);
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
} else {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
} else {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
}
/* Let writer know we're done. */
sync.reader_state = 4;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive signal on each event (TryWaitAny) */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 5);
/* Get the signaled holder. */
auto *signaled = os::TryWaitAny(std::addressof(mw));
AMS_ABORT_UNLESS(signaled == holders + i);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == (i == n));
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
/* Let writer know we're done. */
sync.reader_state = 5;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive signal on each event (TimedWaitAny 0) */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 6);
/* Get the signaled holder. */
auto *signaled = os::TimedWaitAny(std::addressof(mw), TimeSpan::FromMilliSeconds(0));
AMS_ABORT_UNLESS(signaled == holders + i);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == (i == n));
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
/* Let writer know we're done. */
sync.reader_state = 6;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive signal on each event (TimedWaitAny 2) */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 7);
/* Get the signaled holder. */
auto *signaled = os::TimedWaitAny(std::addressof(mw), TimeSpan::FromMilliSeconds(2));
AMS_ABORT_UNLESS(signaled == holders + i);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == (i == n));
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
/* Let writer know we're done. */
sync.reader_state = 7;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive signal on each event (True WaitAny) */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
/* Wait for writer to do the relevant work */
os::WaitEvent(std::addressof(sync.writer_ready_event));
AMS_ABORT_UNLESS(sync.writer_state == 8);
/* Get the signaled holder. */
auto *signaled = os::WaitAny(std::addressof(mw));
AMS_ABORT_UNLESS(signaled == holders + i);
/* Test all events. */
for (size_t n = 0; n < util::size(sync.system_events); ++n) {
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == (i == n));
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
/* Let writer know we're done. */
sync.reader_state = 8;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
/* Verify that we can receive wait-any signals without sync. */
for (size_t i = 0; i < util::size(sync.system_events); ++i) {
auto *signaled = os::WaitAny(std::addressof(mw));
AMS_ABORT_UNLESS(signaled != nullptr);
const size_t n = signaled - holders;
AMS_ABORT_UNLESS(n < util::size(sync.system_events));
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == true);
os::ClearSystemEvent(sync.system_events + n);
AMS_ABORT_UNLESS(os::TryWaitSystemEvent(sync.system_events + n) == false);
}
AMS_ABORT_UNLESS(os::TryWaitAny(std::addressof(mw)) == nullptr);
/* Let writer know we're done. */
sync.reader_state = 9;
os::SignalEvent(std::addressof(sync.reader_ready_event));
}
}
void Main() {
printf("Doing OS Event tests!\n");
{
/* Create the synchronization state. */
InterThreadSync sync_state;
sync_state.reader_state = 0;
sync_state.writer_state = 0;
os::InitializeEvent(std::addressof(sync_state.writer_ready_event), false, os::EventClearMode_AutoClear);
os::InitializeEvent(std::addressof(sync_state.reader_ready_event), false, os::EventClearMode_AutoClear);
R_ABORT_UNLESS(os::CreateSystemEvent(std::addressof(sync_state.system_event_as_manual_clear_event), os::EventClearMode_ManualClear, false));
R_ABORT_UNLESS(os::CreateSystemEvent(std::addressof(sync_state.system_event_as_manual_clear_interprocess_event), os::EventClearMode_ManualClear, true));
R_ABORT_UNLESS(os::CreateSystemEvent(std::addressof(sync_state.system_event_as_auto_clear_event), os::EventClearMode_AutoClear, false));
R_ABORT_UNLESS(os::CreateSystemEvent(std::addressof(sync_state.system_event_as_auto_clear_interprocess_event), os::EventClearMode_AutoClear, true));
/* Ensure we clean up the sync-state when done. */
ON_SCOPE_EXIT {
os::FinalizeEvent(std::addressof(sync_state.writer_ready_event));
os::FinalizeEvent(std::addressof(sync_state.reader_ready_event));
os::DestroySystemEvent(std::addressof(sync_state.system_event_as_manual_clear_event));
os::DestroySystemEvent(std::addressof(sync_state.system_event_as_manual_clear_interprocess_event));
os::DestroySystemEvent(std::addressof(sync_state.system_event_as_auto_clear_event));
os::DestroySystemEvent(std::addressof(sync_state.system_event_as_auto_clear_interprocess_event));
};
/* Create the threads. */
os::ThreadType reader_thread, writer_thread;
R_ABORT_UNLESS(os::CreateThread(std::addressof(reader_thread), TestReaderThread, std::addressof(sync_state), g_reader_thread_stack, sizeof(g_reader_thread_stack), os::DefaultThreadPriority));
R_ABORT_UNLESS(os::CreateThread(std::addressof(writer_thread), TestWriterThread, std::addressof(sync_state), g_writer_thread_stack, sizeof(g_writer_thread_stack), os::DefaultThreadPriority));
os::SetThreadNamePointer(std::addressof(reader_thread), "ReaderThread");
os::SetThreadNamePointer(std::addressof(writer_thread), "WriterThread");
/* Start the threads. */
os::StartThread(std::addressof(reader_thread));
os::StartThread(std::addressof(writer_thread));
/* Wait for the threads to complete. */
os::WaitThread(std::addressof(reader_thread));
os::WaitThread(std::addressof(writer_thread));
/* Destroy the threads. */
os::WaitThread(std::addressof(reader_thread));
os::WaitThread(std::addressof(writer_thread));
}
printf("All tests completed!\n");
}
}
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