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#include "KingSystem/Utils/Thread/TaskMgr.h"
#include <heap/seadHeap.h>
#include <heap/seadHeapMgr.h>
#include "KingSystem/Utils/Thread/ManagedTask.h"
#include "KingSystem/Utils/Thread/TaskThread.h"
namespace ksys::util {
TaskMgr::TaskMgr(sead::Heap* heap)
: mTasksCS(heap), mCS2(heap), mNewFreeTaskEvent(heap, true), mEvent2(heap, true) {
mFreeTaskLists[0].initOffset(ManagedTask::getListNodeOffset());
mFreeTaskLists[1].initOffset(ManagedTask::getListNodeOffset());
mNewFreeTaskEvent.resetSignal();
}
TaskMgr::~TaskMgr() {
finalize();
}
void TaskMgr::finalize() {
if (mFlags.isOn(Flag::HeapIsFreeable)) {
if (mTask)
delete mTask;
mTask = nullptr;
for (auto*& task : mTasks) {
if (task)
delete task;
task = nullptr;
}
mTasks.freeBuffer();
} else {
if (mTask) {
mTask->~ManagedTask();
mTask = nullptr;
}
for (auto* task : mTasks)
task->~ManagedTask();
}
}
void TaskMgr::submitRequest(TaskMgrRequest& request) {
bool request_had_no_task = false;
if (!request.task) {
request_had_no_task = true;
fetchIdleTaskForRequest_(request, true);
}
if (!request.task)
return;
auto* task = request.task;
if (request.handle) {
auto* queue = request.request->mQueue;
if (!queue) {
auto* thread = request.request->mThread;
queue = thread ? thread->getTaskQueue() : nullptr;
}
task->attachHandle(request.handle, queue);
} else {
task->attachHandle(nullptr, nullptr);
}
const bool ok = task->submitRequest(*request.request);
if (!ok) {
if (auto* managed_task = sead::DynamicCast<ManagedTask>(request.task)) {
managed_task->attachHandle(nullptr, nullptr);
if (!request_had_no_task)
return;
freeTask(managed_task);
} else if (!request_had_no_task) {
return;
}
}
if (request_had_no_task || !ok)
request.task = nullptr;
}
// NON_MATCHING: reorderings
bool TaskMgr::fetchIdleTaskForRequest_(TaskMgrRequest& request, bool retry_until_success) {
if (!hasTasks())
return false;
ManagedTask* task = [this, retry_until_success] {
const auto lock1 = sead::makeScopedLock(mTasksCS);
if (auto* task = fetchIdleTask_(retry_until_success))
return task;
swapLists_();
if (!retry_until_success)
return fetchIdleTask_(retry_until_success);
while (true) {
if (auto* task_1 = fetchIdleTask_(retry_until_success))
return task_1;
mNewFreeTaskEvent.wait();
swapLists_();
}
}();
if (!task)
return false;
request.task = task;
return true;
}
void TaskMgr::freeTask(ManagedTask* task) {
auto lock = sead::makeScopedLock(mCS2);
mFreeTaskLists[getListIndex2_()].pushBack(task);
mNewFreeTaskEvent.setSignal();
}
bool TaskMgr::trySubmitRequest(TaskMgrRequest& request) {
bool request_had_no_task = false;
if (!request.task) {
request_had_no_task = true;
if (!tryFetchTaskForRequest_(request, false))
return false;
}
if (!request.task)
return false;
auto* task = request.task;
if (request.handle) {
auto* queue = request.request->mQueue;
if (!queue) {
auto* thread = request.request->mThread;
queue = thread ? thread->getTaskQueue() : nullptr;
}
task->attachHandle(request.handle, queue);
} else {
task->attachHandle(nullptr, nullptr);
}
const bool ok = task->submitRequest(*request.request);
if (!ok) {
if (auto* managed_task = sead::DynamicCast<ManagedTask>(request.task)) {
managed_task->attachHandle(nullptr, nullptr);
if (!request_had_no_task)
return ok;
freeTask(managed_task);
} else if (!request_had_no_task) {
return ok;
}
}
if (request_had_no_task || !ok)
request.task = nullptr;
return ok;
}
// NON_MATCHING: the factory invoke function pointer is loaded earlier in the original code
void TaskMgr::init(s32 num_tasks, sead::Heap* heap, ManagedTaskFactory& factory) {
if (!heap->isFreeable())
mFlags.reset(Flag::HeapIsFreeable);
else
mFlags.set(Flag::HeapIsFreeable);
const sead::ScopedCurrentHeapSetter heap_setter{heap};
mTasks.allocBufferAssert(num_tasks, heap);
if (mTasks.size() != 0) {
auto& list = mFreeTaskLists[mListIndex];
for (auto*& task : mTasks) {
factory(&task);
task->setMgr(this);
list.pushBack(task);
}
}
factory(&mTask);
}
bool TaskMgr::hasTasks() const {
return mTasks.size() > 0;
}
ManagedTask* TaskMgr::fetchIdleTask_(bool retry_until_success) {
auto lock = sead::makeScopedLock(mTasksCS);
if (mFreeTaskLists[mListIndex].isEmpty())
return nullptr;
ManagedTask* result = nullptr;
while (true) {
for (auto& task : mFreeTaskLists[mListIndex]) {
if (task.isIdle()) {
result = std::addressof(task);
break;
}
}
if (result) {
auto lock1 = sead::makeScopedLock(mTasksCS);
mFreeTaskLists[mListIndex].erase(result);
return result;
}
if (!retry_until_success)
return nullptr;
mEvent2.wait(sead::TickSpan::fromMilliSeconds(1));
}
}
} // namespace ksys::util
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