986dcf4f65
- Mainly use `assert`s, since failure is very rare - Forward failure of `CreateSemaphore` to guests because it is more easy to trigger with invalid initial parameters.
128 lines
3.2 KiB
C++
128 lines
3.2 KiB
C++
/**
|
|
******************************************************************************
|
|
* Xenia : Xbox 360 Emulator Research Project *
|
|
******************************************************************************
|
|
* Copyright 2022 Ben Vanik. All rights reserved. *
|
|
* Released under the BSD license - see LICENSE in the root for more details. *
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include "xenia/kernel/xevent.h"
|
|
|
|
#include "xenia/base/byte_stream.h"
|
|
#include "xenia/base/logging.h"
|
|
|
|
namespace xe {
|
|
namespace kernel {
|
|
|
|
XEvent::XEvent(KernelState* kernel_state)
|
|
: XObject(kernel_state, kObjectType) {}
|
|
|
|
XEvent::~XEvent() = default;
|
|
|
|
void XEvent::Initialize(bool manual_reset, bool initial_state) {
|
|
assert_false(event_);
|
|
|
|
this->CreateNative<X_KEVENT>();
|
|
|
|
if (manual_reset) {
|
|
event_ = xe::threading::Event::CreateManualResetEvent(initial_state);
|
|
} else {
|
|
event_ = xe::threading::Event::CreateAutoResetEvent(initial_state);
|
|
}
|
|
assert_not_null(event_);
|
|
}
|
|
|
|
void XEvent::InitializeNative(void* native_ptr, X_DISPATCH_HEADER* header) {
|
|
assert_false(event_);
|
|
|
|
switch (header->type) {
|
|
case 0x00: // EventNotificationObject (manual reset)
|
|
manual_reset_ = true;
|
|
break;
|
|
case 0x01: // EventSynchronizationObject (auto reset)
|
|
manual_reset_ = false;
|
|
break;
|
|
default:
|
|
assert_always();
|
|
return;
|
|
}
|
|
|
|
bool initial_state = header->signal_state ? true : false;
|
|
if (manual_reset_) {
|
|
event_ = xe::threading::Event::CreateManualResetEvent(initial_state);
|
|
} else {
|
|
event_ = xe::threading::Event::CreateAutoResetEvent(initial_state);
|
|
}
|
|
assert_not_null(event_);
|
|
}
|
|
|
|
int32_t XEvent::Set(uint32_t priority_increment, bool wait) {
|
|
event_->Set();
|
|
return 1;
|
|
}
|
|
|
|
int32_t XEvent::Pulse(uint32_t priority_increment, bool wait) {
|
|
event_->Pulse();
|
|
return 1;
|
|
}
|
|
|
|
int32_t XEvent::Reset() {
|
|
event_->Reset();
|
|
return 1;
|
|
}
|
|
|
|
void XEvent::Clear() { event_->Reset(); }
|
|
|
|
bool XEvent::Save(ByteStream* stream) {
|
|
XELOGD("XEvent {:08X} ({})", handle(), manual_reset_ ? "manual" : "auto");
|
|
SaveObject(stream);
|
|
|
|
bool signaled = true;
|
|
auto result =
|
|
xe::threading::Wait(event_.get(), false, std::chrono::milliseconds(0));
|
|
if (result == xe::threading::WaitResult::kSuccess) {
|
|
signaled = true;
|
|
} else if (result == xe::threading::WaitResult::kTimeout) {
|
|
signaled = false;
|
|
} else {
|
|
assert_always();
|
|
}
|
|
|
|
if (signaled) {
|
|
// Reset the event in-case it's an auto-reset.
|
|
event_->Set();
|
|
}
|
|
|
|
stream->Write<bool>(signaled);
|
|
stream->Write<bool>(manual_reset_);
|
|
|
|
return true;
|
|
}
|
|
|
|
object_ref<XEvent> XEvent::Restore(KernelState* kernel_state,
|
|
ByteStream* stream) {
|
|
auto evt = new XEvent(nullptr);
|
|
evt->kernel_state_ = kernel_state;
|
|
|
|
evt->RestoreObject(stream);
|
|
bool signaled = stream->Read<bool>();
|
|
evt->manual_reset_ = stream->Read<bool>();
|
|
|
|
if (evt->manual_reset_) {
|
|
evt->event_ = xe::threading::Event::CreateManualResetEvent(false);
|
|
} else {
|
|
evt->event_ = xe::threading::Event::CreateAutoResetEvent(false);
|
|
}
|
|
assert_not_null(evt->event_);
|
|
|
|
if (signaled) {
|
|
evt->event_->Set();
|
|
}
|
|
|
|
return object_ref<XEvent>(evt);
|
|
}
|
|
|
|
} // namespace kernel
|
|
} // namespace xe
|